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51 Permanent API jobs in Lambeth (SE1) + 20 miles
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Front End Engineer React - Hedge Fund
Front End Engineer React - Hedge Fund
Client Server
Victoria, SW1
£80000 - £95000 per annum + bonus + benefits
Front End Engineer / Developer (React v19 TypeScript) London / WFH to £95k - Are you a Front End technologist looking for an opportunity to progress your career in a hands-on role with lots of learning opportunities? You could be joining a Hedge Fund with complex work and substantial bonus earning potential. As a Front End Engineer you'll join a globally distributed team to develop engaging and simple user interfaces across all internal business systems. You'll collaborate with UX and Product teams, actively participating in all stages of a project, through product design, development, implementation, testing and maintenance. You'll join colleagues in the impressive Central London office with flexibility to work from home twice a week. * You have strong Front End development skills with React (they're using v19) and TypeScript
Front End Engineer / Developer (React v19 TypeScript) London / WFH to £95k - Are you a Front End technologist looking for an opportunity to progress your career in a hands-on role with lots of learning opportunities? You could be joining a Hedge Fund with complex work and substantial bonus earning potential. As a Front End Engineer you'll join a globally distributed team to develop engaging and simple user interfaces across all internal business systems. You'll collaborate with UX and Product teams, actively participating in all stages of a project, through product design, development, implementation, testing and maintenance. You'll join colleagues in the impressive Central London office with flexibility to work from home twice a week. * You have strong Front End development skills with React (they're using v19) and TypeScript
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Senior Backend Engineer
Senior Backend Engineer
Plexus Resource Solutions Ltd
EC1, City of London
From £110,000 to £150,000 per annum
Web3 / Social Product / Blockchain Infrastructure - Remote - 110k-150k - Plexus is partnering with a leading Web3 innovator building the next-generation social platform powered by blockchain. Theyre seeking a Senior Backend Engineer to architect scalable systems and help bring seamless, on-chain social experiences to life. The candidate will lead backend architecture and development for the companys social platform. Responsibilities - Design, develop, and maintain scalable backend systems and APIs. Collaborate with frontend engineers to deliver seamless user experiences. Integrate web3 technologies via third-party APIs or in-house solutions. Continuously improve infrastructure, monitoring, and engineering processes. Requirements - 4+ years of production software engineering experience, ideally at scale. Strong proficiency with TypeScript, Node.js, and AWS.
Web3 / Social Product / Blockchain Infrastructure - Remote - 110k-150k - Plexus is partnering with a leading Web3 innovator building the next-generation social platform powered by blockchain. Theyre seeking a Senior Backend Engineer to architect scalable systems and help bring seamless, on-chain social experiences to life. The candidate will lead backend architecture and development for the companys social platform. Responsibilities - Design, develop, and maintain scalable backend systems and APIs. Collaborate with frontend engineers to deliver seamless user experiences. Integrate web3 technologies via third-party APIs or in-house solutions. Continuously improve infrastructure, monitoring, and engineering processes. Requirements - 4+ years of production software engineering experience, ideally at scale. Strong proficiency with TypeScript, Node.js, and AWS.
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The Finance Systems & IT Support Analyst acts as the dedicated technical specialist for all Finance-related systems, providing expert-level support, system administration, and data management across platforms such as Microsoft Dynamics, SQL Server, Visual Studio, Power Bi, Metabase and associated tools. In addition to Finance systems expertise, this role provides general IT function, contributing to the stability, integration, and performance of business-critical applications across the organisation. Key Responsibilities - Finance Systems Administration & Support * Serve as the primary IT point of contact for Finance systems, ensuring smooth operation and timely issue resolution. * Support and administer Microsoft Dynamics, Evision and related financial applications. * Develop and maintain SQL scripts, queries, and reports to support Finance data analysis and system .
The Finance Systems & IT Support Analyst acts as the dedicated technical specialist for all Finance-related systems, providing expert-level support, system administration, and data management across platforms such as Microsoft Dynamics, SQL Server, Visual Studio, Power Bi, Metabase and associated tools. In addition to Finance systems expertise, this role provides general IT function, contributing to the stability, integration, and performance of business-critical applications across the organisation. Key Responsibilities - Finance Systems Administration & Support * Serve as the primary IT point of contact for Finance systems, ensuring smooth operation and timely issue resolution. * Support and administer Microsoft Dynamics, Evision and related financial applications. * Develop and maintain SQL scripts, queries, and reports to support Finance data analysis and system .
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Description - iHCM Principal Product Manager Talent Management - The Role - The Principal Product Manager, Talent Management, will lead the strategy, design, and execution of talent-focused capabilities across our mid-market (HCM) products and act as a thought leader in this space for the broader ESI organisation. This role is central to delivering innovative, practical, and intuitive solutions that help mid-sized businesses attract, grow, and retain talent while staying agile in a changing workforce landscape. In this role the successful candidate will demonstrate a deep understanding of the needs of end-users and customers in the Talent Management domain; they will have knowledge of the market, the competitive landscape and relevant industry and technology trends. The Domain - This is a strategic role focused on high-impact product capabilities such as performance m
Description - iHCM Principal Product Manager Talent Management - The Role - The Principal Product Manager, Talent Management, will lead the strategy, design, and execution of talent-focused capabilities across our mid-market (HCM) products and act as a thought leader in this space for the broader ESI organisation. This role is central to delivering innovative, practical, and intuitive solutions that help mid-sized businesses attract, grow, and retain talent while staying agile in a changing workforce landscape. In this role the successful candidate will demonstrate a deep understanding of the needs of end-users and customers in the Talent Management domain; they will have knowledge of the market, the competitive landscape and relevant industry and technology trends. The Domain - This is a strategic role focused on high-impact product capabilities such as performance m
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Are you passionate about using artificial intelligence to make a real-world impact? Our client is seeking an ambitious AI Software Engineer to help design and deliver innovative AI solutions for some of the worlds leading organisations. In this exciting role, youll play a key part in the technical delivery of AI applications for clients and help shape the future of their charity-focused product, Chat2Impact. Youll work closely with clients and their internal teams to bring ideas to life from concept through to deployment helping businesses and charities use AI for good. This is a 4 day a week role (Mon-Thurs), with a competitive salary up to £70k (Pro Rata). * Take ownership of the technical implementation of AI solutions across diverse client projects. * Collaborate with the Innovation Lead and clients to shape, design and explain potential solutions.
Are you passionate about using artificial intelligence to make a real-world impact? Our client is seeking an ambitious AI Software Engineer to help design and deliver innovative AI solutions for some of the worlds leading organisations. In this exciting role, youll play a key part in the technical delivery of AI applications for clients and help shape the future of their charity-focused product, Chat2Impact. Youll work closely with clients and their internal teams to bring ideas to life from concept through to deployment helping businesses and charities use AI for good. This is a 4 day a week role (Mon-Thurs), with a competitive salary up to £70k (Pro Rata). * Take ownership of the technical implementation of AI solutions across diverse client projects. * Collaborate with the Innovation Lead and clients to shape, design and explain potential solutions.
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Company Description - Experian is a global data and technology company, powering opportunities for people and businesses around the world. We help to redefine lending practices, uncover and prevent fraud, simplify healthcare, create marketing solutions, and gain deeper insights into the automotive market, all using our unique combination of data, analytics and software. We also assist millions of people to realize their financial goals and help them save time and money. We invest in people and new advanced technologies to unlock the power of data. As a FTSE 100 Index company listed on the London Stock Exchange (EXPN), we have a team of 22,500 people across 32 countries. Our corporate headquarters are in Dublin, Ireland. Internal Grade E - Job Description - Experian Marketing Services are looking for a new Software Engineer to work with our engineering and product team
Company Description - Experian is a global data and technology company, powering opportunities for people and businesses around the world. We help to redefine lending practices, uncover and prevent fraud, simplify healthcare, create marketing solutions, and gain deeper insights into the automotive market, all using our unique combination of data, analytics and software. We also assist millions of people to realize their financial goals and help them save time and money. We invest in people and new advanced technologies to unlock the power of data. As a FTSE 100 Index company listed on the London Stock Exchange (EXPN), we have a team of 22,500 people across 32 countries. Our corporate headquarters are in Dublin, Ireland. Internal Grade E - Job Description - Experian Marketing Services are looking for a new Software Engineer to work with our engineering and product team
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£50,000 - £75,000 DOE | Full-time, on-site | Start: ASAP - Join a global logistics company that's embracing the power of AI to transform the way it operates. This is an opportunity to be part of a forward-thinking team that's leveraging the latest in Large Language Models (LLMs) and automation to drive real business value. As an AI Solutions Engineer, you'll design, build, and implement intelligent automation solutions using cutting-edge AI technologies. Working closely with business stakeholders, you'll identify opportunities for innovation, prototype new ideas, and deliver scalable AI-driven systems that make a measurable impact. * Collaborating with business teams to uncover and define AI/automation opportunities. * Engineering and optimising prompts to ensure consistent, high-quality LLM outputs.
£50,000 - £75,000 DOE | Full-time, on-site | Start: ASAP - Join a global logistics company that's embracing the power of AI to transform the way it operates. This is an opportunity to be part of a forward-thinking team that's leveraging the latest in Large Language Models (LLMs) and automation to drive real business value. As an AI Solutions Engineer, you'll design, build, and implement intelligent automation solutions using cutting-edge AI technologies. Working closely with business stakeholders, you'll identify opportunities for innovation, prototype new ideas, and deliver scalable AI-driven systems that make a measurable impact. * Collaborating with business teams to uncover and define AI/automation opportunities. * Engineering and optimising prompts to ensure consistent, high-quality LLM outputs.
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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 job seekers 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-tech platform. Your benefits - Were a community here that cares as much about your life outside work as how you feel when youre with us. Because your job shouldnt take over your life, it should enrich it. * 29 days holiday allowance + bank holidays * Private medical and dental healthcare * Pension contribution up to 10% * Training and development opportunities * Cycle to work scheme * In house Bari
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 job seekers 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-tech platform. Your benefits - Were a community here that cares as much about your life outside work as how you feel when youre with us. Because your job shouldnt take over your life, it should enrich it. * 29 days holiday allowance + bank holidays * Private medical and dental healthcare * Pension contribution up to 10% * Training and development opportunities * Cycle to work scheme * In house Bari
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Dev/Ops Lead - PaaS Platform | Hybrid (Central London) 83zero is partnered with an exciting, fast-growing startup that's making serious moves in the B2B2C social media space. They're building a next-gen Platform-as-a-Service that's already gaining traction across global media ecosystems - and they're now looking for a DevOps Lead to join their journey. This is a hands-on leadership role where you'll own the technical direction of a serverless, event-driven, globally distributed platform built on AWS. You'll lead a distributed engineering team, shape high-performance APIs, and build systems that scale hard and run clean. What's On Offer * Competitive salary + performance bonus. * Meaningful equity - build it, own it, grow with it. * Hybrid/remote-first working culture. * A seat at the decision table in a fast-scaling SaaS business.
Dev/Ops Lead - PaaS Platform | Hybrid (Central London) 83zero is partnered with an exciting, fast-growing startup that's making serious moves in the B2B2C social media space. They're building a next-gen Platform-as-a-Service that's already gaining traction across global media ecosystems - and they're now looking for a DevOps Lead to join their journey. This is a hands-on leadership role where you'll own the technical direction of a serverless, event-driven, globally distributed platform built on AWS. You'll lead a distributed engineering team, shape high-performance APIs, and build systems that scale hard and run clean. What's On Offer * Competitive salary + performance bonus. * Meaningful equity - build it, own it, grow with it. * Hybrid/remote-first working culture. * A seat at the decision table in a fast-scaling SaaS business.
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We are delighted to be partnering with a successful technology consultancy that is expanding its Software Development team. This is an excellent opportunity for a proactive and committed Software Developer with experience in C#, JavaScript, and SQL to contribute to impactful projects across a diverse client base. About the role - As a Software Developer, you will be working on the development, and maintenance of their internal software product, ensuring seamless integrations into their clients CRM systems. You'll also get involved with external projects, collaborating closely with clients to understand their needs, and design effective solutions. This role blends hands-on technical work with client interaction, giving you the chance to make a visible impact. Key Responsibilities * Design, develop, and maintain new features and applications using modern software develo
We are delighted to be partnering with a successful technology consultancy that is expanding its Software Development team. This is an excellent opportunity for a proactive and committed Software Developer with experience in C#, JavaScript, and SQL to contribute to impactful projects across a diverse client base. About the role - As a Software Developer, you will be working on the development, and maintenance of their internal software product, ensuring seamless integrations into their clients CRM systems. You'll also get involved with external projects, collaborating closely with clients to understand their needs, and design effective solutions. This role blends hands-on technical work with client interaction, giving you the chance to make a visible impact. Key Responsibilities * Design, develop, and maintain new features and applications using modern software develo
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Deep Azure expertise, with M365 ecosystem governance: Power Platform, E5 optimisation, Azure integration services such as Logic Apps, Service Bus, Event Grid, API Management).
Deep Azure expertise, with M365 ecosystem governance: Power Platform, E5 optimisation, Azure integration services such as Logic Apps, Service Bus, Event Grid, API Management).
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Backend Software Engineer C# .Net - Asset Management
Backend Software Engineer C# .Net - Asset Management
Client Server
The City, EC4
£100000 - £150000 per annum + bonus + benefits
There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js.
There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js.
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Senior Backend Engineer
Senior Backend Engineer
Plexus Resource Solutions Ltd
EC1, City of London
From £60,000 to £100,000 per annum
Use Rest API with Python
Use Rest API with Python
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Azure PaaS, Function Apps, Blob/Table Storage, Service Bus Topics, Azure Search and API Management
Azure PaaS, Function Apps, Blob/Table Storage, Service Bus Topics, Azure Search and API Management
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Strong knowledge of Django (or similar) and API design
Strong knowledge of Django (or similar) and API design
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SharePoint Developer
SharePoint Developer
PPF (Pension Protection Fund)
CR0, Croydon
From £56,000 to £61,500 per annum plus Civil Service pension and other
You should be confident working with cloud technologies like Azure, API development and integration, and SharePoint administration.
You should be confident working with cloud technologies like Azure, API development and integration, and SharePoint administration.
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Writing (looking for experience with Scala, JavaScript, Java or any ideally procedural programming or alternatively object-orientated language), running and debugging functional automation tests on an integrated development environment (IDE) for front-end and API testing and frameworks including Cucumber BDD or Junit or Rest Assured
Writing (looking for experience with Scala, JavaScript, Java or any ideally procedural programming or alternatively object-orientated language), running and debugging functional automation tests on an integrated development environment (IDE) for front-end and API testing and frameworks including Cucumber BDD or Junit or Rest Assured
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Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid
Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid
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Front-End QA Tester
Front-End QA Tester
REC SOLUTIONS LIMITED
The City, EC4
Competitive base Plus Discretionary Bonus and Benefits
API testing experience (REST/GraphQL) - both automated and manual * Python knowledge (for backend/API testing)
API testing experience (REST/GraphQL) - both automated and manual * Python knowledge (for backend/API testing)
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Software Engineering Manager - Unified Client Experience (UCX)
Software Engineering Manager - Unified Client Experience (UCX)
Hargreaves Lansdown
EC1, City of London
£90000 - £115000 per annum + Generous bonus, pension, PMI and more
Solid experience in building and deploying frontend applications in React or React Native with hands-on knowledge of secure API design and authentication services.
Solid experience in building and deploying frontend applications in React or React Native with hands-on knowledge of secure API design and authentication services.
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Principal Software Engineer - Unified Client Experience (UCX)
Principal Software Engineer - Unified Client Experience (UCX)
Hargreaves Lansdown
EC1, City of London
Up to £11500 per annum + Generous bonus, pension, PMI & more
Solid experience in building and deploying frontend applications in React or React Native with hands-on knowledge of secure API design and authentication services.
Solid experience in building and deploying frontend applications in React or React Native with hands-on knowledge of secure API design and authentication services.
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Senior Software Engineer - Unified Client Experience (UCX)
Senior Software Engineer - Unified Client Experience (UCX)
Hargreaves Lansdown
EC1, City of London
£75000 - £95000 per annum + Generous bonus, pension, PMI & more
Solid experience in building and deploying frontend applications in React or React Native with hands-on knowledge of secure API design and authentication services.
Solid experience in building and deploying frontend applications in React or React Native with hands-on knowledge of secure API design and authentication services.
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Strong background in test automation ((Playwright, Appium, API,etc.)
Strong background in test automation ((Playwright, Appium, API,etc.)
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Company Overview - At Motorola Solutions, we believe that everything starts with our people. Were a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. Our critical communications, video security and command center technologies support public safety agencies and enterprises alike, enabling the coordination thats critical for safer communities, safer schools, safer hospitals and safer businesses. Connect with a career that matters, and help us build a safer future. Department Overview - Motorola Solutions recently acquired AVA Security Limited. You will be part of the ever growing AVA team as a Graduate Software Engineer. AVA inject intelligence into their approach to security and all their solutions. They help organisations see, understand, and act on their surroundings to protect people, business, and reputation in real
Company Overview - At Motorola Solutions, we believe that everything starts with our people. Were a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. Our critical communications, video security and command center technologies support public safety agencies and enterprises alike, enabling the coordination thats critical for safer communities, safer schools, safer hospitals and safer businesses. Connect with a career that matters, and help us build a safer future. Department Overview - Motorola Solutions recently acquired AVA Security Limited. You will be part of the ever growing AVA team as a Graduate Software Engineer. AVA inject intelligence into their approach to security and all their solutions. They help organisations see, understand, and act on their surroundings to protect people, business, and reputation in real
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Company Overview - At Motorola Solutions, we believe that everything starts with our people. Were a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. Our critical communications, video security and command center technologies support public safety agencies and enterprises alike, enabling the coordination thats critical for safer communities, safer schools, safer hospitals and safer businesses. Connect with a career that matters, and help us build a safer future. Department Overview - The Senior Software Security Engineer will be responsible for analysing software designs and implementations from a security perspective, identifying and proposing remediations to security issues throughout the software development lifecycle (SDLC). Job Description - This role is primarily hybrid, with occasional travel to our UK offices,
Company Overview - At Motorola Solutions, we believe that everything starts with our people. Were a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. Our critical communications, video security and command center technologies support public safety agencies and enterprises alike, enabling the coordination thats critical for safer communities, safer schools, safer hospitals and safer businesses. Connect with a career that matters, and help us build a safer future. Department Overview - The Senior Software Security Engineer will be responsible for analysing software designs and implementations from a security perspective, identifying and proposing remediations to security issues throughout the software development lifecycle (SDLC). Job Description - This role is primarily hybrid, with occasional travel to our UK offices,
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