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32 API jobs in Haslemere Industrial Estate, Welwyn + 20 miles
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skilled with API development, message buses and languages such as C#, Python, or PHP
skilled with API development, message buses and languages such as C#, Python, or PHP
FEATURED
Proficiency in cloud platforms, API development, message buses, DevOps practices, and languages such as C#, Python, or PHP
Proficiency in cloud platforms, API development, message buses, DevOps practices, and languages such as C#, Python, or PHP
FEATURED
Champion best practices across testing disciplines including unit, integration, UI, API, and performance * Knowledge of web, mobile, API/microservices testing and contract testing (e.g. PACT)
Champion best practices across testing disciplines including unit, integration, UI, API, and performance * Knowledge of web, mobile, API/microservices testing and contract testing (e.g. PACT)
PREMIUM
Senior Software Developer
Senior Software Developer
Tech 4
E10, East London
From £64,000 to £70,000 per annum + excellent benefits
Assist with the design, implementation, and testing of APIs that adhere to the Open API specification
Assist with the design, implementation, and testing of APIs that adhere to the Open API specification
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Data Engineer - Defence - Hybrid - Stevenage or Bolton
Data Engineer - Defence - Hybrid - Stevenage or Bolton
Anson Mccade
SG1, Stevenage
From £45,000 to £55,000 per annum
Experience with ETL, API, ESL or similar
Experience with ETL, API, ESL or similar
PREMIUM
Perform Dataverse customizations, SQL queries, and CRUD operations using REST/Web API calls. * JavaScript (customizations & API calls)
Perform Dataverse customizations, SQL queries, and CRUD operations using REST/Web API calls. * JavaScript (customizations & API calls)
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ASP.NET Web API
ASP.NET Web API
NEW
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Monitor and incorporate changes to QA compliance incorporating relevant design codes (ASME, API, etc.)
Monitor and incorporate changes to QA compliance incorporating relevant design codes (ASME, API, etc.)
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Software Developer-MS-Stack
Software Developer-MS-Stack
Solus Accident Repair Centres
North London, London
GBP £35,000.00/Yr. - GBP £50,000.00/Yr.
Work across a wide range of technologies, across web, mobile apps, API, backend, and databases which are currently hosted within Azure.
Work across a wide range of technologies, across web, mobile apps, API, backend, and databases which are currently hosted within Azure.
NEW
Software Developer (Microsoft Stack)
Software Developer (Microsoft Stack)
Solus Accident Repair Centres
North London, London
GBP £35,000.00/Yr. - GBP £50,000.00/Yr.
Work across a wide range of technologies, across web, mobile apps, API, backend, and databases which are currently hosted within Azure.
Work across a wide range of technologies, across web, mobile apps, API, backend, and databases which are currently hosted within Azure.
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Take a lead role in the development and support ofMicrosoft MVC and .NET web applications and C# Console and API solutions, ensuring best practices are followed throughout the software lifecycle. * Proficient in.NET (C#), JavaScript, Web API, SQL Server, and working knowledge ofHTML, CSS, XML, JSON.
Take a lead role in the development and support ofMicrosoft MVC and .NET web applications and C# Console and API solutions, ensuring best practices are followed throughout the software lifecycle. * Proficient in.NET (C#), JavaScript, Web API, SQL Server, and working knowledge ofHTML, CSS, XML, JSON.
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Senior Full Stack Web Developer - ONSITE
Senior Full Stack Web Developer - ONSITE
Profile 29
IG10, Loughton
From £70,000 to £120,000 per annum + benefits (see advert)
As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
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Good understanding of API integration and data flow between front-end and back-end.
Good understanding of API integration and data flow between front-end and back-end.
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Principal Software Engineer (Cloud Applications)
Principal Software Engineer (Cloud Applications)
Eckoh PLC
HP1, Hemel Hempstead
Up to £100000 per annum
Build cloud-native applications using AWS services such as Lambda, API Gateway, DynamoDB, SQS, and EventBridge * Solid experience with AWS application services (Lambda, API Gateway, Step Functions, DynamoDB, etc.) * Proven ability to design and build modern, API-driven systems in a scalable resilient cloud-based platform * Experience with modern front-end frameworks and API integration (React, Vue, Angular)
Build cloud-native applications using AWS services such as Lambda, API Gateway, DynamoDB, SQS, and EventBridge * Solid experience with AWS application services (Lambda, API Gateway, Step Functions, DynamoDB, etc.) * Proven ability to design and build modern, API-driven systems in a scalable resilient cloud-based platform * Experience with modern front-end frameworks and API integration (React, Vue, Angular)
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Senior Software Developer
Senior Software Developer
Lean People Services Limited
Luton, Bedfordshire
From £75,000 to £85,000 per annum
up to £85,000 per annum - Full Time Mon-Fri - Our Client provide remote diagnostic solutions and services to the automotive industry. They offer cutting-edge, expert diagnostics using both after-market and original equipment manufacturer tools to provide safe and accurate repairs. The company was founded in 2010 and is headquartered in Plano, TX with UK offices in Peterlee and Bedfordshire. As more automotive software technologies emerge, including autonomous driving, advanced diagnostics, vehicle connectivity, digital cockpits the Company aims to gain a first-mover advantage by developing software solutions with the help of automotive software engineers. If the idea of making an impact on a project lifecycle sounds appealing from its inception down to testing and deployment appeals to you, keep on reading!
up to £85,000 per annum - Full Time Mon-Fri - Our Client provide remote diagnostic solutions and services to the automotive industry. They offer cutting-edge, expert diagnostics using both after-market and original equipment manufacturer tools to provide safe and accurate repairs. The company was founded in 2010 and is headquartered in Plano, TX with UK offices in Peterlee and Bedfordshire. As more automotive software technologies emerge, including autonomous driving, advanced diagnostics, vehicle connectivity, digital cockpits the Company aims to gain a first-mover advantage by developing software solutions with the help of automotive software engineers. If the idea of making an impact on a project lifecycle sounds appealing from its inception down to testing and deployment appeals to you, keep on reading!
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Senior Python Developer - Hybrid Remote
Senior Python Developer - Hybrid Remote
VERTECH GROUP (UK) LTD
NW3, North West London
From £90,000 to £97,000 per annum + Benefits
Senior Python Developer - Location: Hybrid - 3 days remote / 2 days in NW London - Salary: Circa 90K 97K + Benefits - Senior Python Developer required by a fast-growing, Top Tech Company! This is a varied, challenging role within a talented team, where youll focus on building scalable, reliable backend systems while also sharing knowledge and guiding less experienced developers where needed * Solid background in backend development using Python (Flask, FastAPI, or similar) * Good skills in Google Cloud Platform (GCP) * Experience developing RESTful APIs * Familiarity with Cloud Functions and Cloud Run * Skilled in Docker and/or Kubernetes * Understanding of CI/CD processes * Strong grasp of clean code practices and scalable architecture * Excellent communication and collaboration skills - Tremendous opportunity to be part of a supportive, innovative environment with c
Senior Python Developer - Location: Hybrid - 3 days remote / 2 days in NW London - Salary: Circa 90K 97K + Benefits - Senior Python Developer required by a fast-growing, Top Tech Company! This is a varied, challenging role within a talented team, where youll focus on building scalable, reliable backend systems while also sharing knowledge and guiding less experienced developers where needed * Solid background in backend development using Python (Flask, FastAPI, or similar) * Good skills in Google Cloud Platform (GCP) * Experience developing RESTful APIs * Familiarity with Cloud Functions and Cloud Run * Skilled in Docker and/or Kubernetes * Understanding of CI/CD processes * Strong grasp of clean code practices and scalable architecture * Excellent communication and collaboration skills - Tremendous opportunity to be part of a supportive, innovative environment with c
FEATURED
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Data Engineer - AI Projects
Data Engineer - AI Projects
Henderson Scott
Stevenage, Hertfordshire, SG1 2DA
£50000.00 - £55000.00 per annum + Bonus, + Substantial Benefits
Data Engineer - Generative AI Projects?? Hybrid | 2-3 Days On-Site | Up to £55,000 + Bonus + Package?? British Citizens Only | BPSS Clearance Required - We're hiring a Data Engineer with a passion for automation, clean pipelines, and the future of AI. This is your chance to shape how data powers Generative AI and NLP tools in a secure, high-tech organisation working on projects that matter. If you're keen to work on innovative internal use-cases - from AI assistants to intelligent search and document automation - this is the perfect next step. What You'll Be Doing * Building and maintaining data pipelines across structured & unstructured sources * Collaborating with internal teams to support Generative AI and NLP projects * Ensuring data is secure, compliant, high-quality, and easy to access * Bringing your ideas to the table as we explore new tools and technologies
Data Engineer - Generative AI Projects?? Hybrid | 2-3 Days On-Site | Up to £55,000 + Bonus + Package?? British Citizens Only | BPSS Clearance Required - We're hiring a Data Engineer with a passion for automation, clean pipelines, and the future of AI. This is your chance to shape how data powers Generative AI and NLP tools in a secure, high-tech organisation working on projects that matter. If you're keen to work on innovative internal use-cases - from AI assistants to intelligent search and document automation - this is the perfect next step. What You'll Be Doing * Building and maintaining data pipelines across structured & unstructured sources * Collaborating with internal teams to support Generative AI and NLP projects * Ensuring data is secure, compliant, high-quality, and easy to access * Bringing your ideas to the table as we explore new tools and technologies
NEWFEATURED
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Software Engineer - Scientific Instrumentation - London
Software Engineer - Scientific Instrumentation - London
Bond Williams Limited
W10, West London
Negotiable
A brand new vacancy for a Software Engineer with an incredible scientific instrumentation start-up has become available, based in West London (W12). The Software Engineer will form part of an interdisciplinary team developing software to automate laboratory equipment and processes. * Collaborate cross-functionally with scientists, engineers and bioinformaticians to streamline experimental workflows, improve user experience, and integrate software with complex hardware systems. * Develop and refine GUIs for prototype instruments working with stakeholders. * Develop and maintain embedded software or firmware for instruments where applicable. * Ensure robust communication between hardware components e.g., sensors, actuators, pumps. * Develop software to automate lab processes, sample handling, experimental protocols, and data collection.
A brand new vacancy for a Software Engineer with an incredible scientific instrumentation start-up has become available, based in West London (W12). The Software Engineer will form part of an interdisciplinary team developing software to automate laboratory equipment and processes. * Collaborate cross-functionally with scientists, engineers and bioinformaticians to streamline experimental workflows, improve user experience, and integrate software with complex hardware systems. * Develop and refine GUIs for prototype instruments working with stakeholders. * Develop and maintain embedded software or firmware for instruments where applicable. * Ensure robust communication between hardware components e.g., sensors, actuators, pumps. * Develop software to automate lab processes, sample handling, experimental protocols, and data collection.
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Office Location: Hemel Hempstead - Hybrid Working - Salary: £70,000 - We are seeking a capable and business-savvyDynamics 365 CRM Product Managerto lead the strategy, design, and evolution of our CRM platform. This is a hybrid role that blends traditional product ownership responsibilities with deep platform expertiseincluding hands-on configuration, role management, and solution optimisation across the Dynamics 365 environment. You will act as the central point of contact for CRM functionality, ensuring alignment with business processes and championing continuous improvement through well-informed design and feature decisions. Product Ownership * Serve as the primary owner of the Dynamics 365 CRM product roadmap, prioritising features and enhancements in line with business goals. * Work closely with stakeholders across departments to understand process needs, pain poi
Office Location: Hemel Hempstead - Hybrid Working - Salary: £70,000 - We are seeking a capable and business-savvyDynamics 365 CRM Product Managerto lead the strategy, design, and evolution of our CRM platform. This is a hybrid role that blends traditional product ownership responsibilities with deep platform expertiseincluding hands-on configuration, role management, and solution optimisation across the Dynamics 365 environment. You will act as the central point of contact for CRM functionality, ensuring alignment with business processes and championing continuous improvement through well-informed design and feature decisions. Product Ownership * Serve as the primary owner of the Dynamics 365 CRM product roadmap, prioritising features and enhancements in line with business goals. * Work closely with stakeholders across departments to understand process needs, pain poi
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We're on the lookout for a passionate Lead ServiceNow Developer to stimulate innovation, lead a hard-working team, and craft the future of digital transformation! Sopra Steria's Strategic Digital Services are once again growing their ServiceNow capability and are in the market for Lead ServiceNow Developers! We are seeking an experiencedLead ServiceNow Developerto drive the design, development, and implementation of ServiceNow solutions. In this role, you will direct a team of developers, collaborate with key stakeholders, and drive the successful delivery of scalable and efficient ServiceNow applications. You will be responsible for technical strategy, best practices, and innovative solutions to enhance business processes. We can offer great career progression opportunities, benefits which you can flex to meet your needs and training and development opportunities.
We're on the lookout for a passionate Lead ServiceNow Developer to stimulate innovation, lead a hard-working team, and craft the future of digital transformation! Sopra Steria's Strategic Digital Services are once again growing their ServiceNow capability and are in the market for Lead ServiceNow Developers! We are seeking an experiencedLead ServiceNow Developerto drive the design, development, and implementation of ServiceNow solutions. In this role, you will direct a team of developers, collaborate with key stakeholders, and drive the successful delivery of scalable and efficient ServiceNow applications. You will be responsible for technical strategy, best practices, and innovative solutions to enhance business processes. We can offer great career progression opportunities, benefits which you can flex to meet your needs and training and development opportunities.
NEWFEATURED
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Job Role: Senior Full-Stack PHP Developer - Working Hours: 5 days per week - Job Type: Permanent - Salary: £70,000 - £85,000 depending on experience - Location: London - Remote: 4 days remote - 1 day on-site in London office - Postcode NW6 - About the Company - Our client is a rapidly growing platform that connects individuals with industry professionals for special events. By offering unique opportunities, the platform allows professionals in the field to achieve higher earnings while enjoying enhanced flexibility and a better work-life balance. Role Overview - This is an exciting opportunity to join a high-growth, early-stage startup. As a Full-Stack Developer, youll work closely with the founders and engineers in a tight-knit, London-based team. Youll have a direct impact on the companys expansion into new international markets, shaping the future of the business.
Job Role: Senior Full-Stack PHP Developer - Working Hours: 5 days per week - Job Type: Permanent - Salary: £70,000 - £85,000 depending on experience - Location: London - Remote: 4 days remote - 1 day on-site in London office - Postcode NW6 - About the Company - Our client is a rapidly growing platform that connects individuals with industry professionals for special events. By offering unique opportunities, the platform allows professionals in the field to achieve higher earnings while enjoying enhanced flexibility and a better work-life balance. Role Overview - This is an exciting opportunity to join a high-growth, early-stage startup. As a Full-Stack Developer, youll work closely with the founders and engineers in a tight-knit, London-based team. Youll have a direct impact on the companys expansion into new international markets, shaping the future of the business.
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Senior React Developer / Front End Engineer (React TypeScript Data Visualisation) London to £80k - Are you a skilled Software Developer with strong React and Data Visualisation skills combined with a good appreciation of financial markets and technology? You could be joining a growing, global, Fintech services company that has seen 30-40% year on year growth for the past 10 years and has ambitious growth plans. As a Senior React Developer you'll design and develop new features and enhancements to the front end of the platform with a focus on real-time data visualisation on business critical systems using React. You'll collaborate with backend engineers to build complex financial products. You'll join the team in Central London three days a week with flexibility to work from home the other two days.
Senior React Developer / Front End Engineer (React TypeScript Data Visualisation) London to £80k - Are you a skilled Software Developer with strong React and Data Visualisation skills combined with a good appreciation of financial markets and technology? You could be joining a growing, global, Fintech services company that has seen 30-40% year on year growth for the past 10 years and has ambitious growth plans. As a Senior React Developer you'll design and develop new features and enhancements to the front end of the platform with a focus on real-time data visualisation on business critical systems using React. You'll collaborate with backend engineers to build complex financial products. You'll join the team in Central London three days a week with flexibility to work from home the other two days.
NEWPREMIUM
Job Role:Senior Full-Stack PHP Developer - Working Hours:5 days per week - Job Type:Permanent - Salary:£70,000 - £85,000 depending on experience - Location:London - Remote: 4 days remote - 1 day on-site in London office - Postcode NW6 - About the Company - Our client is a rapidly growing platform that connects individuals with industry professionals for special events. By offering unique opportunities, the platform allows professionals in the field to achieve higher earnings while enjoying enhanced flexibility and a better work-life balance. Role Overview - This is an exciting opportunity to join a high-growth, early-stage startup. As a Full-Stack Developer, youll work closely with the founders and engineers in a tight-knit, London-based team. Youll have a direct impact on the companys expansion into new international markets, shaping the future of the business.
Job Role:Senior Full-Stack PHP Developer - Working Hours:5 days per week - Job Type:Permanent - Salary:£70,000 - £85,000 depending on experience - Location:London - Remote: 4 days remote - 1 day on-site in London office - Postcode NW6 - About the Company - Our client is a rapidly growing platform that connects individuals with industry professionals for special events. By offering unique opportunities, the platform allows professionals in the field to achieve higher earnings while enjoying enhanced flexibility and a better work-life balance. Role Overview - This is an exciting opportunity to join a high-growth, early-stage startup. As a Full-Stack Developer, youll work closely with the founders and engineers in a tight-knit, London-based team. Youll have a direct impact on the companys expansion into new international markets, shaping the future of the business.
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Have the digital world at your feet - As an Engineering Technical Lead at the FA, you will be responsible for leading the software engineers within your Pod (Team/Value stream). You will be key in ensuring your Pod builds the right thing in the right way. This is a technical leadership role responsible for the end-to-end development of a suite of FA applications. Working primarily within a Microsoft-based technology stack, the role serves as the central point for all development activities. Key responsibilities include establishing coding standards, implementing quality assurance processes, and overseeing the work of developers. The ideal candidate will wear multiple hats-acting as an architect, delivery manager, engineer, quality assurance, mentor, problem solver, and collaborative team member-ensuring both technical excellence and alignment with business goals.
Have the digital world at your feet - As an Engineering Technical Lead at the FA, you will be responsible for leading the software engineers within your Pod (Team/Value stream). You will be key in ensuring your Pod builds the right thing in the right way. This is a technical leadership role responsible for the end-to-end development of a suite of FA applications. Working primarily within a Microsoft-based technology stack, the role serves as the central point for all development activities. Key responsibilities include establishing coding standards, implementing quality assurance processes, and overseeing the work of developers. The ideal candidate will wear multiple hats-acting as an architect, delivery manager, engineer, quality assurance, mentor, problem solver, and collaborative team member-ensuring both technical excellence and alignment with business goals.
Have the digital world at your feet - As a Data Integration Technical Lead at the FA, you will be responsible for leading the data integration engineers within your Pod (Team/Value stream). You will be key in ensuring your Pod builds the right thing in the right way. This is a technical leadership and developer role responsible for the end-to-end development of a suite of FA applications. Working primarily within a Microsoft-based technology stack, the role serves as the central point for all integration development activities. Key responsibilities include development, establishing coding standards, implementing quality assurance processes, and overseeing the work of developers. The ideal candidate will wear multiple hats-acting as an architect, delivery manager, data integration engineer, quality assurance, mentor, problem solver, and collaborative team member-ensuri
Have the digital world at your feet - As a Data Integration Technical Lead at the FA, you will be responsible for leading the data integration engineers within your Pod (Team/Value stream). You will be key in ensuring your Pod builds the right thing in the right way. This is a technical leadership and developer role responsible for the end-to-end development of a suite of FA applications. Working primarily within a Microsoft-based technology stack, the role serves as the central point for all integration development activities. Key responsibilities include development, establishing coding standards, implementing quality assurance processes, and overseeing the work of developers. The ideal candidate will wear multiple hats-acting as an architect, delivery manager, data integration engineer, quality assurance, mentor, problem solver, and collaborative team member-ensuri
Related Jobs
Locations
- Southwark
- South Farnborough
- The City, City (EC3)
- Frimley
- Soho
- The City, City (EC4)
- Adderbury
- Bermondsey
- Bishopsgate
- Brentford End
- City of London
- Central London
- West End
- Cambridge
- Reading
- South East London
- South West London
- Milton Keynes
- East London
- Hemel Hempstead
- London
- Berkshire
- Hertfordshire
- Cambridgeshire
- Surrey
- Oxfordshire
- Buckinghamshire
- Essex
- Bedfordshire
- Hampshire
- South East
- East Anglia
- East Midlands
- Midlands