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22 API jobs in Haslemere Industrial Estate, Welwyn + 20 miles
498 exact matches jobs are outside your preferred location
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Senior/Lead Full Stack Developer (React / Python) AI Start up!
Senior/Lead Full Stack Developer (React / Python) AI Start up!
Robert Half
City of London (EC1)
Negotiable
API & database experience
API & database experience
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ClearCourse Technical Support Lead (Payments / API / Incident Management) * Analyse API logs, JSON payloads and system behaviour * Confident with API testing, log analysis and monitoring tools
ClearCourse Technical Support Lead (Payments / API / Incident Management) * Analyse API logs, JSON payloads and system behaviour * Confident with API testing, log analysis and monitoring tools
PREMIUM
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Assist with company technical direction and architecture for mobile, cloud and API platforms
Assist with company technical direction and architecture for mobile, cloud and API platforms
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Experience of Python, Bash, API's
Experience of Python, Bash, API's
FEATURED
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Senior Identity & Access Management Engineer – Typescript, C#, AWS IAM
Senior Identity & Access Management Engineer – Typescript, C#, AWS IAM
Smart Sourcer Limited
City of London (EC1)
From £85,000 to £90,000 per annum + bonus + benefits
Deliver secure login, SSO, MFA, RBAC/ABAC, and tenant isolation at scale, leveraging AWS services (Lambda, IAM, CloudFront, API Gateway, CDK) Solid AWS expertise (IAM, Lambda, API Gateway, CDK)
Deliver secure login, SSO, MFA, RBAC/ABAC, and tenant isolation at scale, leveraging AWS services (Lambda, IAM, CloudFront, API Gateway, CDK) Solid AWS expertise (IAM, Lambda, API Gateway, CDK)
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Skilled in building robust, optimized API endpoints.
Skilled in building robust, optimized API endpoints.
Applied AI Software Engineer - London (Hybrid) - AWS Partner
Applied AI Software Engineer - London (Hybrid) - AWS Partner
Transparent Technology
London
£75000 - £150000 per annum
As a Software Engineer first, you will have deep expertise in at least one programming language (Python, Node.js, Java, JavaScript, TypeScript, React) and proven experience in productionising GenAI solutions, including integrating LLMs, LangChain, OpenAI API, or Claude.
As a Software Engineer first, you will have deep expertise in at least one programming language (Python, Node.js, Java, JavaScript, TypeScript, React) and proven experience in productionising GenAI solutions, including integrating LLMs, LangChain, OpenAI API, or Claude.
)
Applications Support Analyst / Engineer
Applications Support Analyst / Engineer
Kudos Partners
Datchet Common, Slough (SL3), SL3
£75,000 per annum plus 12% bonus - generous benefits package
API support and monitoring tools (e.g., SolarWinds, AzureAppInsights)
API support and monitoring tools (e.g., SolarWinds, AzureAppInsights)
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Proficiency in API development, integration testing, and cross-platform troubleshooting.
Proficiency in API development, integration testing, and cross-platform troubleshooting.
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Proven track record delivering ITSM integrations, API development, web services and automation.
Proven track record delivering ITSM integrations, API development, web services and automation.
FEATURED
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Optimize inference performance and cost (e.g., model compression, quantization, API optimization).
Optimize inference performance and cost (e.g., model compression, quantization, API optimization).
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3 or more years' experience of technical testing micro services solutions, at a service and API layer specifically * Hands-on understanding and experience with API testing * Ability to develop functional tests, which exercise the UI, API and DB layer
3 or more years' experience of technical testing micro services solutions, at a service and API layer specifically * Hands-on understanding and experience with API testing * Ability to develop functional tests, which exercise the UI, API and DB layer
FEATURED
)
Proficient in automation tooling relevant to SAP & developing scripts (API & UI level)
Proficient in automation tooling relevant to SAP & developing scripts (API & UI level)
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Familiarity with microservices, API integration patterns and cloud concepts such as AWS.
Familiarity with microservices, API integration patterns and cloud concepts such as AWS.
)
Data Engineer
Data Engineer
McGregor Boyall Associates Limited
Turnham Green, West London (W4), W4 1SY
£30000 - £35000 per annum
Develop API integrations to connect multiple business systems
Develop API integrations to connect multiple business systems
)
Full-Stack Software Developer
Full-Stack Software Developer
Sanderson Government and Defence
City of London (EC1), EC1
Up to £520 per day
REST/JSON API design
REST/JSON API design
NEWFEATURED
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Senior Embedded Android Developer
Senior Embedded Android Developer
TECHNOLOGY RESOURCING LIMITED
Oxford (OX1)
From £80,000 to £95,000 per annum Hybrid working & Many additional ben
API integration experience.
API integration experience.
)
BMC Helix Technical Delivery Consultant
BMC Helix Technical Delivery Consultant
Vallum Associates Limited
Grazeley, Reading (RG7), RG2
Inside IR35
Familiarity with API development, web services, and data migration strategies.
Familiarity with API development, web services, and data migration strategies.
)
Excellent opportunity for an experienced .NET Backend Developer to join a rapidly growing business in London, where you will play a key role in shaping the backend systems, API architecture, and cloud infrastructure that support the company's technology roadmap.
Excellent opportunity for an experienced .NET Backend Developer to join a rapidly growing business in London, where you will play a key role in shaping the backend systems, API architecture, and cloud infrastructure that support the company's technology roadmap.
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Automation skills (PowerShell, Graph API) for identity lifecycle and migration tasks.
Automation skills (PowerShell, Graph API) for identity lifecycle and migration tasks.
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Understanding of data transfer / API's and Cloud based applications
Understanding of data transfer / API's and Cloud based applications
PREMIUM
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Principal Software Engineer – EV Charging
Principal Software Engineer – EV Charging
Gerrell & Hard
Bicester, Oxfordshire
Unspecified £competitive
Proficiency in API and cloud development (AWS/Azure, MQTT, WebSockets)
Proficiency in API and cloud development (AWS/Azure, MQTT, WebSockets)
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Front Office Developer - Technical Team Lead
Front Office Developer - Technical Team Lead
CMC Markets UK Plc
The City, City of London (EC3), EC3A 7BX
Competitive Salary + Bonus, Pension, Private Health, Life Assurance
Proven experience designing and developing API-based, microservices-driven architectures.
Proven experience designing and developing API-based, microservices-driven architectures.
FEATURED
)
Solutions Consultant – Integrations
Solutions Consultant – Integrations
ARC IT Recruitment Ltd
West End, Central London (W1), W1G
£competitive + Bonus + Excellent Benefits
Familiar with setting up API connections, mapping data and managing transformation rules.
Familiar with setting up API connections, mapping data and managing transformation rules.
)
Principal Engineer
Principal Engineer
Kingston Barnes Engineering
Keeley Green, Bedford (MK42), MK42
£80,000 per annum holiday, pension, sick pay, life assurance
Familiarity with industry standards (ISO, API, HI) and experience testing and validating designs
Familiarity with industry standards (ISO, API, HI) and experience testing and validating designs
Related Jobs
Locations
- The City, City (EC4)
- Shoreditch
- The City, City (EC3)
- Hinxton
- Southwark
- Arundel Heights
- Bellfields
- Bloomsbury
- Burton End
- Covent Garden
- City of London
- Central London
- West End
- Cambridge
- Milton Keynes
- Reading
- South East London
- Stevenage
- East London
- North West London
- London
- Berkshire
- Cambridgeshire
- Hertfordshire
- Buckinghamshire
- Oxfordshire
- Surrey
- Essex
- Bedfordshire
- Northamptonshire
- South East
- East Anglia
- East Midlands
- Midlands