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49 Permanent API jobs in Welwyn Garden City + 20 miles
494 exact matches jobs are outside your preferred location
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Full Stack Software Developer ASP.NET C# jQuery HTML5 SQL - The ideal candidatewill be responsible for building and maintaining internal and external facing web applications. You will be working in a team of experienced developers to build highly performing systems that improve efficiency. Teams use Agile Methodology and follow Scrum and Kanban Frameworks. *ASP.NET C# jQuery HTML5 SQL Azure GIT - Job requirements - Role Responsibilities * Maintain existing products and provide resolutions to Escalated Support Calls within the agreed SLAs * Require testing developments from end to end before passed to Acceptance Testing * Ability to adapt quickly to an existing, complex environment * Evaluate, redesign and modify existing program logic to quickly and efficiently meet and exceed customer needs, by integrating new requirements and by applying proven development paths
Full Stack Software Developer ASP.NET C# jQuery HTML5 SQL - The ideal candidatewill be responsible for building and maintaining internal and external facing web applications. You will be working in a team of experienced developers to build highly performing systems that improve efficiency. Teams use Agile Methodology and follow Scrum and Kanban Frameworks. *ASP.NET C# jQuery HTML5 SQL Azure GIT - Job requirements - Role Responsibilities * Maintain existing products and provide resolutions to Escalated Support Calls within the agreed SLAs * Require testing developments from end to end before passed to Acceptance Testing * Ability to adapt quickly to an existing, complex environment * Evaluate, redesign and modify existing program logic to quickly and efficiently meet and exceed customer needs, by integrating new requirements and by applying proven development paths
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Title: Laboratory Systems Specialist - Location: Slough - Visa and Relocation support is offered with this role. Today, Lonza is a global leader in life sciences operating across five continents. While we work in science, theres no magic formula to how we do it. Our greatest scientific solution is talented people working together, devising ideas that help businesses to help people. In exchange, we let our people own their careers. Their ideas, big and small, genuinely improve the world. And thats the kind of work we want to be part of. The role of a Laboratory Systems Specialist is to lead the development and implementation of robust Lab/digital infrastructure within our R&D laboratories for the UK and US locations. This is pivotal in enabling efficient, automated data exchange between laboratory instruments and enterprise informatics systems such as Electronic Lab no
Title: Laboratory Systems Specialist - Location: Slough - Visa and Relocation support is offered with this role. Today, Lonza is a global leader in life sciences operating across five continents. While we work in science, theres no magic formula to how we do it. Our greatest scientific solution is talented people working together, devising ideas that help businesses to help people. In exchange, we let our people own their careers. Their ideas, big and small, genuinely improve the world. And thats the kind of work we want to be part of. The role of a Laboratory Systems Specialist is to lead the development and implementation of robust Lab/digital infrastructure within our R&D laboratories for the UK and US locations. This is pivotal in enabling efficient, automated data exchange between laboratory instruments and enterprise informatics systems such as Electronic Lab no
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Job Overview - In this role, youll play a key part in developing and leading data centre network initiatives, working collaboratively with diverse Infrastructure and Global Networks teams across multiple time zones. Together, youll deliver change and transformation across business-critical services. Some out-of-hours work may occasionally be required to support global operations. Youll bring your expertise as a skilled Data Centre Network Engineer to design, implement, manage, and support the networking infrastructure that underpins our data centres. Youll possess a strong knowledge of enterprise networking technologies, particularly Cisco ACI and Cisco SD-WAN, ensuring our networks are secure, scalable, and high-performing. Experience with automation and Infrastructure-as-Code (IaC) will help you develop efficient and reliable solutions that strengthen Arms global ..
Job Overview - In this role, youll play a key part in developing and leading data centre network initiatives, working collaboratively with diverse Infrastructure and Global Networks teams across multiple time zones. Together, youll deliver change and transformation across business-critical services. Some out-of-hours work may occasionally be required to support global operations. Youll bring your expertise as a skilled Data Centre Network Engineer to design, implement, manage, and support the networking infrastructure that underpins our data centres. Youll possess a strong knowledge of enterprise networking technologies, particularly Cisco ACI and Cisco SD-WAN, ensuring our networks are secure, scalable, and high-performing. Experience with automation and Infrastructure-as-Code (IaC) will help you develop efficient and reliable solutions that strengthen Arms global ..
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Join a fast-growing AI startup transforming a trillion-pound industry through intelligent automation. We're building the next generation of workflow technology - streamlining complex, manual processes and empowering professionals to focus on the work that truly matters. If you love solving deep technical problems, shaping architecture, and seeing your code have a real-world impact, this is a chance to build something meaningful from the ground up. The Role - We're looking for a Senior Backend Engineer to take ownership of key backend services that power our AI-driven platform. You'll work closely with product, frontend, and AI teams to design, build, and scale backend systems that handle large-scale data, complex workflows, and real-time interactions. You'll join a small, high-calibre team where your ideas genuinely shape the direction of the product and the company.
Join a fast-growing AI startup transforming a trillion-pound industry through intelligent automation. We're building the next generation of workflow technology - streamlining complex, manual processes and empowering professionals to focus on the work that truly matters. If you love solving deep technical problems, shaping architecture, and seeing your code have a real-world impact, this is a chance to build something meaningful from the ground up. The Role - We're looking for a Senior Backend Engineer to take ownership of key backend services that power our AI-driven platform. You'll work closely with product, frontend, and AI teams to design, build, and scale backend systems that handle large-scale data, complex workflows, and real-time interactions. You'll join a small, high-calibre team where your ideas genuinely shape the direction of the product and the company.
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We're looking for an experienced Front-End Developer to join a fast-paced digital transformation project for a leading UK-based organisation in the manufacturing sector. This is an opportunity to make an immediate impact on a complex internal system used across multiple teams. You'll be joining at the latter stages of a large internal rebuild, helping optimise and refine an order processing platform that integrates data from over 40 different software tools. The ideal candidate will have a sharp eye for detail, a strong understanding of front-end best practices, and the ability to hit the ground running in a dynamic environment. * JavaScript (ES6+) * Vue.js * HTML5 / CSS3 * REST APIs & JSON * Enhance and streamline the user interface for an internal order processing system * Optimise workflows and improve system usability for internal teams
We're looking for an experienced Front-End Developer to join a fast-paced digital transformation project for a leading UK-based organisation in the manufacturing sector. This is an opportunity to make an immediate impact on a complex internal system used across multiple teams. You'll be joining at the latter stages of a large internal rebuild, helping optimise and refine an order processing platform that integrates data from over 40 different software tools. The ideal candidate will have a sharp eye for detail, a strong understanding of front-end best practices, and the ability to hit the ground running in a dynamic environment. * JavaScript (ES6+) * Vue.js * HTML5 / CSS3 * REST APIs & JSON * Enhance and streamline the user interface for an internal order processing system * Optimise workflows and improve system usability for internal teams
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Software Engineer
Software Engineer
Inspire People
CR2, South Croydon
£41100 - £44400 per annum + 29% pension + Civil Service benefits
HM Land Registry (HMLR) are modernising the systems and services that underpin property ownership across England and Wales - some of the most valuable data in the UK economy. As a Software Developer, you'll play an important role in designing, building and supporting the digital services that help secure property rights and enable the housing market to function. Salary up to £44,400, 29% employer pension contribution plus full Civil Service benefits. Flexible, hybrid working from 14 office locations across the UK. Job Summary - You will join HMLR's Software Development Practice, part of the wider Digital, Data and Technology (DDaT) directorate. The practice includes Developers who work in multidisciplinary agile teams with product managers, delivery managers, testers, business analysts and user researchers.
HM Land Registry (HMLR) are modernising the systems and services that underpin property ownership across England and Wales - some of the most valuable data in the UK economy. As a Software Developer, you'll play an important role in designing, building and supporting the digital services that help secure property rights and enable the housing market to function. Salary up to £44,400, 29% employer pension contribution plus full Civil Service benefits. Flexible, hybrid working from 14 office locations across the UK. Job Summary - You will join HMLR's Software Development Practice, part of the wider Digital, Data and Technology (DDaT) directorate. The practice includes Developers who work in multidisciplinary agile teams with product managers, delivery managers, testers, business analysts and user researchers.
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Data Migration Engineer - CRM - Remote - Outside IR35
Data Migration Engineer - CRM - Remote - Outside IR35
The Bridge (IT Recruitment) Limited
The Borough, SE1 0AA
£400 - 500 per day + None
This is a fantastic opportunity to work as a Data Migration Engineer for a publishing company, on a remote contract, initially for 3 months and outside IR35. This Data Migration Engineer will join a team, responsible for the migration 6 CRMs to 1 new CRM and migrating 20 million rows of data. * CRM migration * APIs * Json * XML * Low code * Airtable (desirable) If you do have the relevant skills for this Data Migration Engineer contract, please do apply.
This is a fantastic opportunity to work as a Data Migration Engineer for a publishing company, on a remote contract, initially for 3 months and outside IR35. This Data Migration Engineer will join a team, responsible for the migration 6 CRMs to 1 new CRM and migrating 20 million rows of data. * CRM migration * APIs * Json * XML * Low code * Airtable (desirable) If you do have the relevant skills for this Data Migration Engineer contract, please do apply.
Airtable Developer - Remote - Outside IR35
Airtable Developer - Remote - Outside IR35
The Bridge (IT Recruitment) Limited
The Borough, SE1 0AA
£450 - 500 per day
This is a fantastic opportunity to work as an Airtime Developer on a long term contract, outside IR35, on a remote basis. This Airtable Developer will be responsible for migrating 20 million rows of data and 6 CRMs into 1 CRM. * Airtable * APIs * AI * Databases If you do have the relevant experience for this Airtable Developer position, please do apply.
This is a fantastic opportunity to work as an Airtime Developer on a long term contract, outside IR35, on a remote basis. This Airtable Developer will be responsible for migrating 20 million rows of data and 6 CRMs into 1 CRM. * Airtable * APIs * AI * Databases If you do have the relevant experience for this Airtable Developer position, please do apply.
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In 1914, Ernest Shackleton placed an advertisement seeking men for his Antarctic expeditionFor hazardousjourneyintounchartedterritory. Smallwages. Longhoursnavigatingcomplexity. Thousandsresponded. Today,weseekadifferentkindofpioneer;onewhowillchartthecoursethroughtheunexploredfrontierofartificial intelligence. We are not just implementing AI; we're defining what's possible. We're one of the first to venture into territories where others see only questions. Where they see complexity, we see opportunity. Wherethey see risk, we see the path forward. This role is looking for a talented AI Deployment Engineer who is keen to join a start-up! You will be joining a start-up with a mission to deploy cutting-edge AI systems for marketing businesses. This isn't about following playbooks, there are none. You'll be writing them. Every implementation is a first ascent.
In 1914, Ernest Shackleton placed an advertisement seeking men for his Antarctic expeditionFor hazardousjourneyintounchartedterritory. Smallwages. Longhoursnavigatingcomplexity. Thousandsresponded. Today,weseekadifferentkindofpioneer;onewhowillchartthecoursethroughtheunexploredfrontierofartificial intelligence. We are not just implementing AI; we're defining what's possible. We're one of the first to venture into territories where others see only questions. Where they see complexity, we see opportunity. Wherethey see risk, we see the path forward. This role is looking for a talented AI Deployment Engineer who is keen to join a start-up! You will be joining a start-up with a mission to deploy cutting-edge AI systems for marketing businesses. This isn't about following playbooks, there are none. You'll be writing them. Every implementation is a first ascent.
FTSE Russell is a leading global provider of financial services, specializing in the creation and management of indexes, data, and analytic solutions. A subsidiary of the London Stock Exchange Group (LSEG), FTSE Russell supports investors worldwide in making informed decisions across asset classes, investment strategies, and market segments. Its products are trusted by institutional and retail investors, asset managers, and pension funds to benchmark performance, build investment portfolios, and manage risk. With a reputation for innovation, transparency, and robust governance, FTSE Russell plays a critical role in shaping global financial markets. FTSE Russell is seeking a hands-on dynamic software development leader to drive a team of software engineers building robust equity index capabilities and indexes.
FTSE Russell is a leading global provider of financial services, specializing in the creation and management of indexes, data, and analytic solutions. A subsidiary of the London Stock Exchange Group (LSEG), FTSE Russell supports investors worldwide in making informed decisions across asset classes, investment strategies, and market segments. Its products are trusted by institutional and retail investors, asset managers, and pension funds to benchmark performance, build investment portfolios, and manage risk. With a reputation for innovation, transparency, and robust governance, FTSE Russell plays a critical role in shaping global financial markets. FTSE Russell is seeking a hands-on dynamic software development leader to drive a team of software engineers building robust equity index capabilities and indexes.
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We're looking for a highly skilled Senior Full Stack Developer with strong experience in C# .NET and React to join our growing tech team. You'll play a key role in designing, building, and maintaining robust, scalable web applications, working across the full stack to deliver high-quality solutions that drive real value. This is a hybrid role with two days a week based in the office. * Design, develop, and maintain web applications using C# .NET (Core/Framework) and React. * Collaborate with cross-functional teams to define, design, and ship new features. * Write clean, scalable, and testable code. * Troubleshoot and debug applications. * Mentor junior developers and contribute to best practices. * 5+ years of experience as a Full Stack Developer. * Strong proficiency in C# .NET (Core) and React. * Solid understanding of REST APIs, SQL/NoSQL databases, and version con
We're looking for a highly skilled Senior Full Stack Developer with strong experience in C# .NET and React to join our growing tech team. You'll play a key role in designing, building, and maintaining robust, scalable web applications, working across the full stack to deliver high-quality solutions that drive real value. This is a hybrid role with two days a week based in the office. * Design, develop, and maintain web applications using C# .NET (Core/Framework) and React. * Collaborate with cross-functional teams to define, design, and ship new features. * Write clean, scalable, and testable code. * Troubleshoot and debug applications. * Mentor junior developers and contribute to best practices. * 5+ years of experience as a Full Stack Developer. * Strong proficiency in C# .NET (Core) and React. * Solid understanding of REST APIs, SQL/NoSQL databases, and version con
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We're looking for an experienced Senior Application Support Engineer to join a growing IT team and play a key role in supporting critical business applications across a modern and complex technology stack. * Investigating and resolving technical incidents, ensuring minimal downtime and effective root cause analysis * Proactively maintaining and optimising applications, performing upgrades and configuration changes * Monitoring system performance, defining service-level objectives, and addressing bottlenecks before they impact users * Collaborating closely with engineering and business teams to drive operational excellence * Enhancing processes, documentation, and tooling to support continuous improvement * Proven experience in an application support or support engineering role, within financial services ideally, or another regulated environment
We're looking for an experienced Senior Application Support Engineer to join a growing IT team and play a key role in supporting critical business applications across a modern and complex technology stack. * Investigating and resolving technical incidents, ensuring minimal downtime and effective root cause analysis * Proactively maintaining and optimising applications, performing upgrades and configuration changes * Monitoring system performance, defining service-level objectives, and addressing bottlenecks before they impact users * Collaborating closely with engineering and business teams to drive operational excellence * Enhancing processes, documentation, and tooling to support continuous improvement * Proven experience in an application support or support engineering role, within financial services ideally, or another regulated environment
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Principal Software Engineer - Frontend
Principal Software Engineer - Frontend
Fruition Group
London
£95000 - £120000 per annum + Equity + Benefits
London (Remote First - Occasional travel) Salary: £95,000 - £120,000 + equity + benefits - An established, global technology business within the hospitality-tech industry is seeking a talented Principal Frontend Software Engineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield projects - building new, scalable products that help venues create seamless, data-driven guest experiences from the ground up. * Set the technical vision and architectural direction for frontend systems, ensuring performance, scalability, and maintainability across complex products. * Lead design and delivery of modern, component-based web applications built with TypeScript, React, and Redux, integrating seamlessly with cloud-based APIs and data pipelines. * Collaborate with engineering, design, and product leadership to define long-term frontend st
London (Remote First - Occasional travel) Salary: £95,000 - £120,000 + equity + benefits - An established, global technology business within the hospitality-tech industry is seeking a talented Principal Frontend Software Engineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield projects - building new, scalable products that help venues create seamless, data-driven guest experiences from the ground up. * Set the technical vision and architectural direction for frontend systems, ensuring performance, scalability, and maintainability across complex products. * Lead design and delivery of modern, component-based web applications built with TypeScript, React, and Redux, integrating seamlessly with cloud-based APIs and data pipelines. * Collaborate with engineering, design, and product leadership to define long-term frontend st
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Salesforce Technical Lead London - Location: London (Hybrid) Salary: £85,000 per annum + benefits - Type: Permanent | Full-Time - Recruitment Partner: 167 Solutions Ltd - 167 Solutions Ltd is proud to be working in partnership with a forward-thinking organisation that is investing heavily in its digital transformation. We are seeking an experienced Salesforce Technical Lead to take ownership of the platforms technical direction and play a key role in delivering enterprise-grade Salesforce solutions. This is a hands-on leadership role ideal for someone who enjoys both solution architecture and technical delivery, and wants to shape a scalable Salesforce ecosystem within a growing organisation. Key Responsibilities * Lead the technical design, development and implementation of Salesforce solutions. * Translate business requirements into robust and scalable technical arc
Salesforce Technical Lead London - Location: London (Hybrid) Salary: £85,000 per annum + benefits - Type: Permanent | Full-Time - Recruitment Partner: 167 Solutions Ltd - 167 Solutions Ltd is proud to be working in partnership with a forward-thinking organisation that is investing heavily in its digital transformation. We are seeking an experienced Salesforce Technical Lead to take ownership of the platforms technical direction and play a key role in delivering enterprise-grade Salesforce solutions. This is a hands-on leadership role ideal for someone who enjoys both solution architecture and technical delivery, and wants to shape a scalable Salesforce ecosystem within a growing organisation. Key Responsibilities * Lead the technical design, development and implementation of Salesforce solutions. * Translate business requirements into robust and scalable technical arc
Permanent | Fully Remote (UK) £65,000 - £80,000 + bonus - Key Skills: SQL (T-SQL or PL/SQL) * Unit4 ERP Datasets / Data Dictionary * REST & SOAP Web Services * PowerShell * RERX / ARC / Xtra Reporting - About the Role - We're seeking a technically focused Unit4 Lead Consultant to take ownership of complex solution design, development, and delivery for a leading IT consultancy. This role is hands-on-ideal for someone who thrives on solving technical challenges, building integrations, and optimising data-driven solutions within Unit4 ERP. You'll play a key role in defining technical strategy, developing custom extensions, reports, and integrations, and ensuring solutions are robust, scalable, and high performing. You'll also provide technical direction and guidance to a small team, ensuring best practices and knowledge sharing across projects. What You'll Do
Permanent | Fully Remote (UK) £65,000 - £80,000 + bonus - Key Skills: SQL (T-SQL or PL/SQL) * Unit4 ERP Datasets / Data Dictionary * REST & SOAP Web Services * PowerShell * RERX / ARC / Xtra Reporting - About the Role - We're seeking a technically focused Unit4 Lead Consultant to take ownership of complex solution design, development, and delivery for a leading IT consultancy. This role is hands-on-ideal for someone who thrives on solving technical challenges, building integrations, and optimising data-driven solutions within Unit4 ERP. You'll play a key role in defining technical strategy, developing custom extensions, reports, and integrations, and ensuring solutions are robust, scalable, and high performing. You'll also provide technical direction and guidance to a small team, ensuring best practices and knowledge sharing across projects. What You'll Do
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Opportunity for a AI Engineer Developer to work for an established FinTech company * Salary up to £75k depending on experience * Hybrid working out of Sevenoaks HQ * Tech stack - LLMs, Langchain, OpenAI, n8n, Flowable - We're working with a well-established, technology-driven FinTech company that's redefining how automation and AI power financial services. Combining innovation with stability, they've built a reputation as one of the UK's fastest-growing and most forward-thinking finance providers, now they're looking to strengthen their AI and automation capability. * Build intelligent workflows using n8n, Microsoft Power Automate, Flowable, and similar tools. * Design and implement agentic AI solutions, integrating LLMs and frameworks such as LangChain, AutoGen, and RAG pipelines with platforms like OpenAI.
Opportunity for a AI Engineer Developer to work for an established FinTech company * Salary up to £75k depending on experience * Hybrid working out of Sevenoaks HQ * Tech stack - LLMs, Langchain, OpenAI, n8n, Flowable - We're working with a well-established, technology-driven FinTech company that's redefining how automation and AI power financial services. Combining innovation with stability, they've built a reputation as one of the UK's fastest-growing and most forward-thinking finance providers, now they're looking to strengthen their AI and automation capability. * Build intelligent workflows using n8n, Microsoft Power Automate, Flowable, and similar tools. * Design and implement agentic AI solutions, integrating LLMs and frameworks such as LangChain, AutoGen, and RAG pipelines with platforms like OpenAI.
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Automation Test Engineer
Automation Test Engineer
Data Careers
London
£55000 - £90000 per annum + comprehensive range of Employee Benefits
Automation Tester (ETRM Platforms) Permanent - Location: UK - Remote - Salary: £55,000 - £90,000 (+ benefits) Skills: ETRM platform experience, (Openlink Endur, Findur etc.), Automation testing Python, Java etc. We are seeking Automation Testers, (up to Lead Tester), for a leading software company that delivers advanced solutions for trading and risk management across global financial and energy markets. There are options for both fully remote and hybrid / London working. What you'll bring * Programming & Scripting: Python, Java, JavaScript, C++, Scriban * Web Technologies: RESTful APIs, HTTP, JSON, HTML, CSS, Node.js * Databases: SQL Server, MySQL, PostgreSQL, MongoDB * Tools & Frameworks: Git, Docker, Jenkins, Kubernetes, Agile (Scrum & Kanban), JIRA, Pytest, Powershell * Operating Systems: Linux, Windows * CI/CD pipelines and debugging expertise * BDD frameworks su
Automation Tester (ETRM Platforms) Permanent - Location: UK - Remote - Salary: £55,000 - £90,000 (+ benefits) Skills: ETRM platform experience, (Openlink Endur, Findur etc.), Automation testing Python, Java etc. We are seeking Automation Testers, (up to Lead Tester), for a leading software company that delivers advanced solutions for trading and risk management across global financial and energy markets. There are options for both fully remote and hybrid / London working. What you'll bring * Programming & Scripting: Python, Java, JavaScript, C++, Scriban * Web Technologies: RESTful APIs, HTTP, JSON, HTML, CSS, Node.js * Databases: SQL Server, MySQL, PostgreSQL, MongoDB * Tools & Frameworks: Git, Docker, Jenkins, Kubernetes, Agile (Scrum & Kanban), JIRA, Pytest, Powershell * Operating Systems: Linux, Windows * CI/CD pipelines and debugging expertise * BDD frameworks su
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Company Description - At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for jobseekers and companies around the world to find a perfect match in fair and equitable way. With over 20 brands across 30+ countries, we strive for fair and unbiased hiring. Join our team of 4,000+ employees and be part of reshaping the labour market and becoming the worlds leading job platform. Job Description - Join our team and youll be responsible for providing technical leadership to all engineering and development areas across your domain, developing and executing an engineering strategy aligned to the portfolio and global tech strategies. Working in the Design and Platform Performance domain, you willlead the technology side of web and mobile analytics for a platform with ov
Company Description - At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for jobseekers and companies around the world to find a perfect match in fair and equitable way. With over 20 brands across 30+ countries, we strive for fair and unbiased hiring. Join our team of 4,000+ employees and be part of reshaping the labour market and becoming the worlds leading job platform. Job Description - Join our team and youll be responsible for providing technical leadership to all engineering and development areas across your domain, developing and executing an engineering strategy aligned to the portfolio and global tech strategies. Working in the Design and Platform Performance domain, you willlead the technology side of web and mobile analytics for a platform with ov
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We're looking for a highly skilled Senior Full Stack Developer with strong experience in C# .NET and React to join our growing tech team. You'll play a key role in designing, building, and maintaining robust, scalable web applications, working across the full stack to deliver high-quality solutions that drive real value. This is a hybrid role with two days a week based in the office. * Design, develop, and maintain web applications using C# .NET (Core/Framework) and React. * Collaborate with cross-functional teams to define, design, and ship new features. * Write clean, scalable, and testable code. * Troubleshoot and debug applications. * Mentor junior developers and contribute to best practices. * 5+ years of experience as a Full Stack Developer. * Strong proficiency in C# .NET (Core) and React. * Solid understanding of REST APIs, SQL/NoSQL databases, and version con
We're looking for a highly skilled Senior Full Stack Developer with strong experience in C# .NET and React to join our growing tech team. You'll play a key role in designing, building, and maintaining robust, scalable web applications, working across the full stack to deliver high-quality solutions that drive real value. This is a hybrid role with two days a week based in the office. * Design, develop, and maintain web applications using C# .NET (Core/Framework) and React. * Collaborate with cross-functional teams to define, design, and ship new features. * Write clean, scalable, and testable code. * Troubleshoot and debug applications. * Mentor junior developers and contribute to best practices. * 5+ years of experience as a Full Stack Developer. * Strong proficiency in C# .NET (Core) and React. * Solid understanding of REST APIs, SQL/NoSQL databases, and version con
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We need talented engineers with a strong low-level graphics and GPU development background on the Android platform, ideally with experience of working in the consumer electronics industry. This contract will be hybrid (3 days a week onsite, 2 remote), based near Egham. Its within IR35 but offering a good rate to offset that! The successful candidate will contribute to new, high-performance graphics solutions, integrate our solutions with new hardware platforms, optimise the Android OS graphics stack, benchmark our systems against competitors, work with 3rd party software developers and generally ensure that we have the best possible graphics experience on the market. Role and Responsibilities - Develop innovations to optimise real-time rendering pipelines and deliver class-leading performance - Implement standard features and extensions for the Android Graphics stack
We need talented engineers with a strong low-level graphics and GPU development background on the Android platform, ideally with experience of working in the consumer electronics industry. This contract will be hybrid (3 days a week onsite, 2 remote), based near Egham. Its within IR35 but offering a good rate to offset that! The successful candidate will contribute to new, high-performance graphics solutions, integrate our solutions with new hardware platforms, optimise the Android OS graphics stack, benchmark our systems against competitors, work with 3rd party software developers and generally ensure that we have the best possible graphics experience on the market. Role and Responsibilities - Develop innovations to optimise real-time rendering pipelines and deliver class-leading performance - Implement standard features and extensions for the Android Graphics stack
The LSEG DevSecOps Engineering team inside the cyber security division is looking for Senior Software Engineers to build tools and automations to help secure software development for thousands of developers across the group. You will be working as part of a geographically distributed remote team comprising of security engineers and software engineers. Our teams mission is to allow engineers to embed security best practices frictionlessly as part of their day to day work. * Deep understanding of cyber security principles, secure software development, and threat modeling * Experience conducting security assessments, code reviews, and vulnerability management across diverse technology stacks * Experience in building full-stack products (web applications, APIs, CI tooling or low-level software) * Hands-on experience with cloud technologies (AWS, GCP, Azure) and containers
The LSEG DevSecOps Engineering team inside the cyber security division is looking for Senior Software Engineers to build tools and automations to help secure software development for thousands of developers across the group. You will be working as part of a geographically distributed remote team comprising of security engineers and software engineers. Our teams mission is to allow engineers to embed security best practices frictionlessly as part of their day to day work. * Deep understanding of cyber security principles, secure software development, and threat modeling * Experience conducting security assessments, code reviews, and vulnerability management across diverse technology stacks * Experience in building full-stack products (web applications, APIs, CI tooling or low-level software) * Hands-on experience with cloud technologies (AWS, GCP, Azure) and containers
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Senior C# .NET Developer (Hybrid)
Senior C# .NET Developer (Hybrid)
Get Staffed Online Recruitment
W1B, West London
£68 000 - £72 000 per annum
Senior C# .NET Developer - Mayfair, London - Hybrid (1 - 2 days per week in the office) £68,000 - £72,000 per annum - The Role - Our client is hiring a backend C# .NET Developer to join their engineering team in a hybrid role (1 - 2 days per week in the office). You'll help build and maintain high-performance backend systems that support searching, order processing, and background processes with a strong focus on both application logic and data access. This role is ideal for someone confident in both C#/.NET development and SQL, and who enjoys working on clean, maintainable code and performance-optimised database logic. * Designing and building backend services in C#. * Building secure, well-structured APIs with throttling and versioning. * Developing durable workflows. * Writing efficient and scalable SQL queries, stored procedures, and scripts.
Senior C# .NET Developer - Mayfair, London - Hybrid (1 - 2 days per week in the office) £68,000 - £72,000 per annum - The Role - Our client is hiring a backend C# .NET Developer to join their engineering team in a hybrid role (1 - 2 days per week in the office). You'll help build and maintain high-performance backend systems that support searching, order processing, and background processes with a strong focus on both application logic and data access. This role is ideal for someone confident in both C#/.NET development and SQL, and who enjoys working on clean, maintainable code and performance-optimised database logic. * Designing and building backend services in C#. * Building secure, well-structured APIs with throttling and versioning. * Developing durable workflows. * Writing efficient and scalable SQL queries, stored procedures, and scripts.
Security Architecture Secure Design Team - Role: Senior Manager Secure Design (People Leader) Grade: GG14 - Security Architecture Design team is responsible for developing Security Architecture patterns; developing security controls needed for new technology; promoting the use of the architectural patterns into development projects; Leading the Security Architecture Design Forum; Evaluating architectural security risks in existing systems; Consulting with system development teams and architects on building security into their design. This role has responsibility for building and setting the direction of the team, and for the teams output. Reports to: Director - Security Architecture - Key relationships & committees * Security Domain Forum (chair) * CTO / Architecture Governance * Business Aligned Principal Security Architects * CyberSecurity Engineering
Security Architecture Secure Design Team - Role: Senior Manager Secure Design (People Leader) Grade: GG14 - Security Architecture Design team is responsible for developing Security Architecture patterns; developing security controls needed for new technology; promoting the use of the architectural patterns into development projects; Leading the Security Architecture Design Forum; Evaluating architectural security risks in existing systems; Consulting with system development teams and architects on building security into their design. This role has responsibility for building and setting the direction of the team, and for the teams output. Reports to: Director - Security Architecture - Key relationships & committees * Security Domain Forum (chair) * CTO / Architecture Governance * Business Aligned Principal Security Architects * CyberSecurity Engineering
Join Us as a Senior Software Development Engineer in Test (SDET)! Overview - We are looking for a Software Development Engineer in Test (SDET) or automation tester who comes from a Java Software Development background. The role is to assist in the development of the new Index platform for the FTSE-Russell Index business of the London Stock Exchange Group (LSEG). The Index Platform team performs the calculation, maintenance and distribution of Index products. You will be working on innovative technologies with a team of engineers to implement solutions which support the strategic growth of the Index business. You will be involved in the development of test tools and solutions as well as new test frameworks, starting from a blank slate in some cases, to help ensure the quality of a greenfield application build.
Join Us as a Senior Software Development Engineer in Test (SDET)! Overview - We are looking for a Software Development Engineer in Test (SDET) or automation tester who comes from a Java Software Development background. The role is to assist in the development of the new Index platform for the FTSE-Russell Index business of the London Stock Exchange Group (LSEG). The Index Platform team performs the calculation, maintenance and distribution of Index products. You will be working on innovative technologies with a team of engineers to implement solutions which support the strategic growth of the Index business. You will be involved in the development of test tools and solutions as well as new test frameworks, starting from a blank slate in some cases, to help ensure the quality of a greenfield application build.
LCH Ltd is an international multi-asset class central counterparty clearing house (CCP), part of the London Stock Exchange Group. LCH Ltd serves a broad range of exchanges and over-the-counter trading platforms providing critical risk management services. It has a unique membership model and its customers span the globe and include major financial groups (including the majority of the major investment banks), broker-dealers and specialist commodity houses and a wide range of buy-side and real-money firms including major asset managers and large hedge funds. This role provides an opportunity to work on one of the most critical finance technology functions in the world. The LCH CCP is systematically important to the worlds financial markets which requires technology that has to be very resilient and with strong controls.
LCH Ltd is an international multi-asset class central counterparty clearing house (CCP), part of the London Stock Exchange Group. LCH Ltd serves a broad range of exchanges and over-the-counter trading platforms providing critical risk management services. It has a unique membership model and its customers span the globe and include major financial groups (including the majority of the major investment banks), broker-dealers and specialist commodity houses and a wide range of buy-side and real-money firms including major asset managers and large hedge funds. This role provides an opportunity to work on one of the most critical finance technology functions in the world. The LCH CCP is systematically important to the worlds financial markets which requires technology that has to be very resilient and with strong controls.