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- The City, City (EC3)
- Shoreditch
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- Blackfriars
- Canary Wharf
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94 Contract API jobs in Blackfriars + 20 miles
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Workplace Platform Engineer (DocuSign & 365 & API)
Workplace Platform Engineer (DocuSign & 365 & API)
Morson Edge
City of London, London, EC1A 1AA
Market related
We are seeking a Platform Engineer to join the Modern Workplace team at a leading banking client. This team is focused on delivering a flexible, efficient, and seamless digital workplace experience, enabling colleagues to collaborate and perform effectively using enterprise tools such as Microsoft 365 and DocuSign. The successful candidate will be a key contributor to the Productivity Applications portfolio, responsible for configuring, maintaining, and enhancing platforms that support a high-performing digital workplace. Key Responsibilities * Configure, develop, and maintain solutions across the Productivity Applications platform * Contribute to the design and implementation of new digital workplace capabilities * Manage the end-to-end lifecycle of platform solutions, ensuring continuous improvement * Support business-as-usual changes and incremental enhancements
We are seeking a Platform Engineer to join the Modern Workplace team at a leading banking client. This team is focused on delivering a flexible, efficient, and seamless digital workplace experience, enabling colleagues to collaborate and perform effectively using enterprise tools such as Microsoft 365 and DocuSign. The successful candidate will be a key contributor to the Productivity Applications portfolio, responsible for configuring, maintaining, and enhancing platforms that support a high-performing digital workplace. Key Responsibilities * Configure, develop, and maintain solutions across the Productivity Applications platform * Contribute to the design and implementation of new digital workplace capabilities * Manage the end-to-end lifecycle of platform solutions, ensuring continuous improvement * Support business-as-usual changes and incremental enhancements
PREMIUM
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Senior Full Stack Engineer
Senior Full Stack Engineer
RSMB
Covent Garden, Central London (WC2), WC2B
Up to £85k, based on experience
RSMB is seeking an experienced and highly capable Senior Full Stack Engineer to play a central role in the design, development, and evolution of our expanding product suite, including Barb Ads Hub, NMO XCM, and our Data Fusion platform. You will join the team based in London (Hybrid – 2 days per week in the office). Youwill join us on a full-time, permanent basis, and in return, you will receive a competitive salary of up to £85,000 per annum, based on experience. RSMB is a leading company specialising in media measurement solutions. We work with a wide range of clients delivering both long-term contracts like Barb (UK TV audience measurement) and RAJAR (Radio audience measurement), and ad hoc projects. We are proud that we have been a Barb TV audience measurement contractor since 1989 and a RAJAR contractor since 2007.
RSMB is seeking an experienced and highly capable Senior Full Stack Engineer to play a central role in the design, development, and evolution of our expanding product suite, including Barb Ads Hub, NMO XCM, and our Data Fusion platform. You will join the team based in London (Hybrid – 2 days per week in the office). Youwill join us on a full-time, permanent basis, and in return, you will receive a competitive salary of up to £85,000 per annum, based on experience. RSMB is a leading company specialising in media measurement solutions. We work with a wide range of clients delivering both long-term contracts like Barb (UK TV audience measurement) and RAJAR (Radio audience measurement), and ad hoc projects. We are proud that we have been a Barb TV audience measurement contractor since 1989 and a RAJAR contractor since 2007.
PREMIUM
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Senior Solutions Architect
Senior Solutions Architect
The Talent Ladder
St James, South West London (SW1), SW1A
Up to £125,000 per annum Bonus and travel allowance
API design & microservices architecture
API design & microservices architecture
PREMIUM
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Contract .Net Developer – Insurance claims system
Contract .Net Developer – Insurance claims system
Hireful
Central London, London
£400 per day outside IR35
We’re looking for a proactive, self-sufficient developer with strong experience in .NET, API development, microservices architecture, and database integration.
We’re looking for a proactive, self-sufficient developer with strong experience in .NET, API development, microservices architecture, and database integration.
FEATURED
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Digital Platform Architect (power platform)
Digital Platform Architect (power platform)
MORGAN PHILIPS UK LIMITED
City of London (EC1)
£60000 - £70000 per annum
Undertake development of customising Dataverse, canvas apps, API integrations with 3rd party systems.
Undertake development of customising Dataverse, canvas apps, API integrations with 3rd party systems.
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Solutions Architect
Solutions Architect
MARSH CORPORATE SERVICES LIMITED
City of London (EC1)
Pension, Healthcare, Life Insurance and much more
Deep fluency in London Market placing platforms and integration patterns (Whitespace, PPL, API ecosystem).
Deep fluency in London Market placing platforms and integration patterns (Whitespace, PPL, API ecosystem).
PREMIUM
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Solutions Architect
Solutions Architect
Solus Accident Repair Centres
North London, London
GBP £50,000.00/Yr. - GBP £65,000.00/Yr.
Deep knowledge of modern enterprise patterns, SaaS adoption, API and event based integrations and resilience approaches.
Deep knowledge of modern enterprise patterns, SaaS adoption, API and event based integrations and resilience approaches.
Full Stack Engineer - Equity
Full Stack Engineer - Equity
Dental startup
Central London (W1)
Up to £60,000 per annum Equity - Founding Engineer
You'll own the full stack database architecture, API layer, and front-end, and you'll work directly with the founder on every major decision. * Architect and build the core platform from scratch schema, API, and front-end * Strong Node.js REST API development, authentication, middleware * Third-party API and webhook integration experience
You'll own the full stack database architecture, API layer, and front-end, and you'll work directly with the founder on every major decision. * Architect and build the core platform from scratch schema, API, and front-end * Strong Node.js REST API development, authentication, middleware * Third-party API and webhook integration experience
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Develop and maintain Python code for data processing, API development, and integration with the Azure Databricks environment.
Develop and maintain Python code for data processing, API development, and integration with the Azure Databricks environment.
FEATURED
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AboutTheRole - WerelookingformultipleLeadTechnicalArchitectswhowillplayacentralroleinthesuccessfuldeliveryoftechnologyprojects. Youwillworkcloselywithclientsandinternalteamstounderstandcontext,co-designsolutions,andleadtechnicalteamsthroughproductdevelopment. Inthisrole,youwillleadarchitectureworkonclientprogrammes. Youwilldesignandoverseeend-to-endtechnologysolutionsthatarescalable,secure,user-centred,andethicallyresponsible. Thisroleinvolvestranslatingbusinessneedsintotechnologysolutions,creatingarchitectureartefacts,andsupportingclientstomakesustainableanduser-focusedtechnologychoices. Youmightbeaspecialistinaparticulartechnologydomainorplatform-suchaslegacysystemmigration,m365,Azure,GCP,AWS,dataplatformsorintelligentprocessautomation-butyouwillapplyatechnologyagnosticperspective. You'lloperateasatrustedadvisor,oftenleadingsmallerengagementsorplayingaseniorroleonlargerones,butmayalsoworksoloorcontributeasamemberofateamasneeded.
AboutTheRole - WerelookingformultipleLeadTechnicalArchitectswhowillplayacentralroleinthesuccessfuldeliveryoftechnologyprojects. Youwillworkcloselywithclientsandinternalteamstounderstandcontext,co-designsolutions,andleadtechnicalteamsthroughproductdevelopment. Inthisrole,youwillleadarchitectureworkonclientprogrammes. Youwilldesignandoverseeend-to-endtechnologysolutionsthatarescalable,secure,user-centred,andethicallyresponsible. Thisroleinvolvestranslatingbusinessneedsintotechnologysolutions,creatingarchitectureartefacts,andsupportingclientstomakesustainableanduser-focusedtechnologychoices. Youmightbeaspecialistinaparticulartechnologydomainorplatform-suchaslegacysystemmigration,m365,Azure,GCP,AWS,dataplatformsorintelligentprocessautomation-butyouwillapplyatechnologyagnosticperspective. You'lloperateasatrustedadvisor,oftenleadingsmallerengagementsorplayingaseniorroleonlargerones,butmayalsoworksoloorcontributeasamemberofateamasneeded.
PREMIUM
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Lead .NET/JS Developer - Perm - Creative Agency
Lead .NET/JS Developer - Perm - Creative Agency
Lorien Resourcing Limited
The City, City of London (EC4), EC2V 6EE
£800000.00 - £900000.00 per annum
Tech Lead - Award Winning Creative Agency - Perm: £80,000-£90,000 - Hybrid: 3 days per week to the London Office - We're working with an award-winning digital experience studio that sits at the heart of a leading creative partnership. This team designs, builds, and evolves digital products and services used by millions - spanning high-traffic platforms, innovative product builds, and emerging AI-driven experiences. This is a high-impact, hands-on leadership role where you'll balance architecture, delivery, and people leadership. You'll work across multiple concurrent projects, from large site builds and micro-sites to experimental AI initiatives and commercially released products. You'll lead multidisciplinary developers, working closely with design, UX, product, strategy, and delivery teams - and you'll be a visible technical voice with both internal stakeholders and clients.
Tech Lead - Award Winning Creative Agency - Perm: £80,000-£90,000 - Hybrid: 3 days per week to the London Office - We're working with an award-winning digital experience studio that sits at the heart of a leading creative partnership. This team designs, builds, and evolves digital products and services used by millions - spanning high-traffic platforms, innovative product builds, and emerging AI-driven experiences. This is a high-impact, hands-on leadership role where you'll balance architecture, delivery, and people leadership. You'll work across multiple concurrent projects, from large site builds and micro-sites to experimental AI initiatives and commercially released products. You'll lead multidisciplinary developers, working closely with design, UX, product, strategy, and delivery teams - and you'll be a visible technical voice with both internal stakeholders and clients.
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Back End Integration Engineer - Azure
Back End Integration Engineer - Azure
I3 Resourcing Limited
The City, City of London (EC3), EC3V 3ND
£600 - £700 per day + Outside IR35
Azure API Management (APIM)
Azure API Management (APIM)
NEW
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Lead Integration Architect - 12 Months Contract Outside IR35 £600 to £650 a day - 3 days a week in Dartford Kent - A global powerhouse in the Infrastructure and Built Environment sector is urgently seeking a visionary Integration Architect to spearhead the connectivity for a multi-million-pound Digital Manufacturing Cloud (DMC) transformation. This isn't a maintenance role. You will own the entire integration architecture, acting as the master orchestrator for a complex ecosystem. You will ensure that high-level ERP and HR systems communicate perfectly with the precision-engineered data flows of PLM, MES, and QMS platforms. As an integration Architect you will have the following responsibilities * Define the integration architecture that allows disparate enterprise systems to speak a single, fluent language.
Lead Integration Architect - 12 Months Contract Outside IR35 £600 to £650 a day - 3 days a week in Dartford Kent - A global powerhouse in the Infrastructure and Built Environment sector is urgently seeking a visionary Integration Architect to spearhead the connectivity for a multi-million-pound Digital Manufacturing Cloud (DMC) transformation. This isn't a maintenance role. You will own the entire integration architecture, acting as the master orchestrator for a complex ecosystem. You will ensure that high-level ERP and HR systems communicate perfectly with the precision-engineered data flows of PLM, MES, and QMS platforms. As an integration Architect you will have the following responsibilities * Define the integration architecture that allows disparate enterprise systems to speak a single, fluent language.
FEATURED
Integration and API testing across Salesforce, SAP, and downstream systems
Integration and API testing across Salesforce, SAP, and downstream systems
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Working across API, UI, and integration testing
Working across API, UI, and integration testing
T24 Developer - Transact
T24 Developer - Transact
Hireful
Central London, London
66K Basic + 12.5% Pension + Bonus (typical 25%, performance based) + 2
Experience participating in T24 upgrade and integration projects (including API integrations).
Experience participating in T24 upgrade and integration projects (including API integrations).
FEATURED
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Strong knowledge of data modeling and API integration.
Strong knowledge of data modeling and API integration.
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API integration
API integration
PREMIUM
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Lead Mobile Engineer KMP - Wellness
Lead Mobile Engineer KMP - Wellness
Client Server
Shoreditch, East London (E1), EC2A
£90000 - £110000 per annum + benefits
You'll work on business logic, networking, domain layers and API integrations, collaborating closely with backend engineers, product, design and QA to deliver end-to-end features whilst mentoring more junior engineers. * You have API integration experience
You'll work on business logic, networking, domain layers and API integrations, collaborating closely with backend engineers, product, design and QA to deliver end-to-end features whilst mentoring more junior engineers. * You have API integration experience
NEWPREMIUM
API Automation (REST Assured, Karate, Postman)
API Automation (REST Assured, Karate, Postman)
)
Working knowledge of SQL, JSON, or API troubleshooting
Working knowledge of SQL, JSON, or API troubleshooting
FEATURED
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Experience withAzure (APIM, Azure Functions, API Services), React/React-Native and.NET Core - Proficiency in at least one major API testing framework - Experience with API testing (REST, Postman)
Experience withAzure (APIM, Azure Functions, API Services), React/React-Native and.NET Core - Proficiency in at least one major API testing framework - Experience with API testing (REST, Postman)
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Understanding of AI integrations including LLM services and API-driven automation * API Management, OAuth2, JWT, audit logging
Understanding of AI integrations including LLM services and API-driven automation * API Management, OAuth2, JWT, audit logging
NEW
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Experience with Azure API Management or similar API gateways.
Experience with Azure API Management or similar API gateways.
PREMIUM
Lead Software Engineer Ruby TypeScript React
Lead Software Engineer Ruby TypeScript React
Client Server
Shoreditch, East London (E1), EC2A
£100000 - £130000 per annum + stock options + benefits
Are you a polyglot Software Engineer with Developer Experience, API / SDK development skills? As a Lead Software Engineer you'll own the technical strategy and architecture for one or more Developer Ecosystems (iOS, Web, Infra/Automation), define and drive best practices for API and SDK design, ensuring consistency, usability and scalability and lead complex, cross-team initiatives to expand and improve client libraries.
Are you a polyglot Software Engineer with Developer Experience, API / SDK development skills? As a Lead Software Engineer you'll own the technical strategy and architecture for one or more Developer Ecosystems (iOS, Web, Infra/Automation), define and drive best practices for API and SDK design, ensuring consistency, usability and scalability and lead complex, cross-team initiatives to expand and improve client libraries.
NEWPREMIUM
Related Jobs
Locations
- The City, City (EC3)
- Shoreditch
- Moorgate
- The City, City (EC2)
- The City, City (EC4)
- Blackfriars
- Canary Wharf
- Charing Cross
- Covent Garden
- Euston
- City of London
- Cambridge
- Central London
- West End
- East London
- Reading
- Milton Keynes
- Wokingham
- Dartford
- Oxford
- London
- Cambridgeshire
- Berkshire
- Kent
- Oxfordshire
- Buckinghamshire
- Essex
- Hertfordshire
- Hampshire
- Surrey
- South East
- East Anglia