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9 Contract API jobs in Central London + 20 miles
106 exact matches jobs are outside your preferred location
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London, UK - Up to £60/hour Outside IR35 - Active SC Clearance required - iO Associates have aligned exclusively with a multi-nation defence alliance to find an MS Dynamics Developer. The ideal candidate would have extensive hands-on experience across the full Dynamics 365 F&O lifecycle, with strong skills in customisation, integrations, automation, Power Platform development, AI-led enhancements, and stakeholder engagement. * Lead customisation, configuration, and enhancement of Dynamics 365 F&O, ensuring scalable, maintainable solutions. * Drive end-to-end delivery across the full ERP lifecycle, including development, integrations, testing, deployment, and post-go-live support. * Build automated workflows and integrations using Power Platform, REST APIs, and low-code tools to improve business processes.
London, UK - Up to £60/hour Outside IR35 - Active SC Clearance required - iO Associates have aligned exclusively with a multi-nation defence alliance to find an MS Dynamics Developer. The ideal candidate would have extensive hands-on experience across the full Dynamics 365 F&O lifecycle, with strong skills in customisation, integrations, automation, Power Platform development, AI-led enhancements, and stakeholder engagement. * Lead customisation, configuration, and enhancement of Dynamics 365 F&O, ensuring scalable, maintainable solutions. * Drive end-to-end delivery across the full ERP lifecycle, including development, integrations, testing, deployment, and post-go-live support. * Build automated workflows and integrations using Power Platform, REST APIs, and low-code tools to improve business processes.
FEATURED
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Role: C++ Developer - Type: Contract (6 Months) Location: UK (Fully Remote) Technical Essentials (Must Haves) * Senior-level C++ expertise with many years of experience. * Strong debugging skills and a proactive test mindset-you will spend significant time triaging issues and mastering system design. Core Developer Traits * Enjoys context shifting and jumping between different projects and domains rapidly. * Overcommunicator who ensures strict alignment to prevent wasted time and effort. * Excellent communication skills-ability to simplify highly complex technical domain information for stakeholders. * A collaborative team player who actively leverages the knowledge of peers. Bonus Experience (Highly Desirable) * Familiarity with playback and orchestration APIs. * Experience in consumer multimedia software (e.g., Netflix, Amazon).
Role: C++ Developer - Type: Contract (6 Months) Location: UK (Fully Remote) Technical Essentials (Must Haves) * Senior-level C++ expertise with many years of experience. * Strong debugging skills and a proactive test mindset-you will spend significant time triaging issues and mastering system design. Core Developer Traits * Enjoys context shifting and jumping between different projects and domains rapidly. * Overcommunicator who ensures strict alignment to prevent wasted time and effort. * Excellent communication skills-ability to simplify highly complex technical domain information for stakeholders. * A collaborative team player who actively leverages the knowledge of peers. Bonus Experience (Highly Desirable) * Familiarity with playback and orchestration APIs. * Experience in consumer multimedia software (e.g., Netflix, Amazon).
FEATURED
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Location: Client sites, remote, or hybrid, depending on project need. Contract Type: Contract - About Us - Triad Group Plc is an award-winning digital, data, and solutions consultancy with over 35 years' experience primarily serving the UK public sector and central government. We deliver high-quality solutions that make a real difference to users, citizens and consumers. At Triad, collaboration thrives, knowledge is shared, and every voice matters. Our close-knit, supportive culture ensures you're valued from day one. Whether working with cutting-edge tech or shaping strategy for national-scale projects, you'll be trusted, challenged, and empowered to grow. We nurture learning through communities of practice and encourage creativity, autonomy, and innovation. If you're passionate about solving meaningful problems with smart and passionate people, Triad could be the pl
Location: Client sites, remote, or hybrid, depending on project need. Contract Type: Contract - About Us - Triad Group Plc is an award-winning digital, data, and solutions consultancy with over 35 years' experience primarily serving the UK public sector and central government. We deliver high-quality solutions that make a real difference to users, citizens and consumers. At Triad, collaboration thrives, knowledge is shared, and every voice matters. Our close-knit, supportive culture ensures you're valued from day one. Whether working with cutting-edge tech or shaping strategy for national-scale projects, you'll be trusted, challenged, and empowered to grow. We nurture learning through communities of practice and encourage creativity, autonomy, and innovation. If you're passionate about solving meaningful problems with smart and passionate people, Triad could be the pl
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PEGA Lead Systems Architect - process/task mining
PEGA Lead Systems Architect - process/task mining
Hays
London
£500.0 - £550.0 per day + up to £550 pd (outside IR35)
Pega Lead Systems Architect - Pega, Process/Task Mining £550 per day (Outside IR35) Remote / London - 6 Months - My client is an instantly recognisable consultancy who seek a PEGA Lead Systems Architect (LSA) to take ownership of designing, architecting, and delivering innovative BPM and CRM solutions using the PEGA Platform, for a well-known end client. * Extensive experience as a PEGA Lead Systems Architect, with a strong focus on enterprise-level solutions. * Prior involvement of at least one implementation with Process/Task Mining * PEGA Lead System Architect (PCLSA) certification is essential. * In-depth knowledge of PEGA frameworks, including Customer Service, Decisioning, and Smart Disputes. * Hands-on expertise in system integrations using SOAP/REST APIs, JMS, MQ, and Kafka. * Comprehensive understanding of case management, decisioning capabilities, and the PE
Pega Lead Systems Architect - Pega, Process/Task Mining £550 per day (Outside IR35) Remote / London - 6 Months - My client is an instantly recognisable consultancy who seek a PEGA Lead Systems Architect (LSA) to take ownership of designing, architecting, and delivering innovative BPM and CRM solutions using the PEGA Platform, for a well-known end client. * Extensive experience as a PEGA Lead Systems Architect, with a strong focus on enterprise-level solutions. * Prior involvement of at least one implementation with Process/Task Mining * PEGA Lead System Architect (PCLSA) certification is essential. * In-depth knowledge of PEGA frameworks, including Customer Service, Decisioning, and Smart Disputes. * Hands-on expertise in system integrations using SOAP/REST APIs, JMS, MQ, and Kafka. * Comprehensive understanding of case management, decisioning capabilities, and the PE
Skilled in API development and microservices architecture
Skilled in API development and microservices architecture
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Deep knowledge of REST API design, scalability, fault tolerance, and performance optimization.
Deep knowledge of REST API design, scalability, fault tolerance, and performance optimization.
Define and document integration standards, including API strategies, event schemas, and interface contracts to enable decoupled, reusable services * Strong proficiency in API design (REST/GraphQL), microservices architecture, and middleware solution
Define and document integration standards, including API strategies, event schemas, and interface contracts to enable decoupled, reusable services * Strong proficiency in API design (REST/GraphQL), microservices architecture, and middleware solution
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Background in developing with C#, .NET, Web Services, Web Forms, MVC, JavaScript, jQuery, CSS, HTML, React, Web APIs and Visual Studio, API integrations
Background in developing with C#, .NET, Web Services, Web Forms, MVC, JavaScript, jQuery, CSS, HTML, React, Web APIs and Visual Studio, API integrations
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Experience with cloud integration services such as Azure API Management, Service Bus, Event Grid, and Functions.
Experience with cloud integration services such as Azure API Management, Service Bus, Event Grid, and Functions.
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Optimise page load speed, rendering performance, and API response times. * Familiarity with RESTful API design and backend performance considerations.
Optimise page load speed, rendering performance, and API response times. * Familiarity with RESTful API design and backend performance considerations.
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Experience with cloud-based data storage solutions and building efficient API routes in Node.js.
Experience with cloud-based data storage solutions and building efficient API routes in Node.js.
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Familiarity with the WebGL API and rendering pipelines is a plus. * Strong knowledge of the HTML5 Canvas API.
Familiarity with the WebGL API and rendering pipelines is a plus. * Strong knowledge of the HTML5 Canvas API.
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Familiarity with the WebGL API and rendering pipelines is a plus. * Strong knowledge of the HTML5 Canvas API.
Familiarity with the WebGL API and rendering pipelines is a plus. * Strong knowledge of the HTML5 Canvas API.
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You will be able to understand and reason about a complex distributed system with a comprehensive data processing API, the ability to process a wide range of complex input data types, and the capability to query that data with a SQL-like query engine.
You will be able to understand and reason about a complex distributed system with a comprehensive data processing API, the ability to process a wide range of complex input data types, and the capability to query that data with a SQL-like query engine.
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Strong understanding of API design
Strong understanding of API design
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Strong analytical thinking, communication skills, and experience with API-driven or extensible products are essential. * 5+ years as a Product Owner, Technical Product Manager, or similar role in SaaS, platform, API/SDK, or developer-focused products. * Deep knowledge of API-driven development and integration models. * Understanding of versioning, CI/CD pipelines, and open-API ecosystems.
Strong analytical thinking, communication skills, and experience with API-driven or extensible products are essential. * 5+ years as a Product Owner, Technical Product Manager, or similar role in SaaS, platform, API/SDK, or developer-focused products. * Deep knowledge of API-driven development and integration models. * Understanding of versioning, CI/CD pipelines, and open-API ecosystems.
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Implementation of Salesforce Flows to a high standard (e.g. screen flows, triggered flows, API flows)
Implementation of Salesforce Flows to a high standard (e.g. screen flows, triggered flows, API flows)
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Delivering security automation (scripting, API integration and via the Power Platform) * Experience of using and configuring API integrations
Delivering security automation (scripting, API integration and via the Power Platform) * Experience of using and configuring API integrations
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The ideal candidate has prior experience solving complex forms of scaled abuse, building sophisticated protections across multiple parts of OpenAIs product suite (ChatGPT, API, Sora).
The ideal candidate has prior experience solving complex forms of scaled abuse, building sophisticated protections across multiple parts of OpenAIs product suite (ChatGPT, API, Sora).
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Help drive decisions on API design, synchronous vs. asynchronous processing, consistency models, and service boundaries for the broader platform. * AWS Cloud Expertise: Deep architectural knowledge of the AWS ecosystem, such as Lambda, API Gateway, S3, DynamoDB, IAM, and container orchestration (EKS/ECS).
Help drive decisions on API design, synchronous vs. asynchronous processing, consistency models, and service boundaries for the broader platform. * AWS Cloud Expertise: Deep architectural knowledge of the AWS ecosystem, such as Lambda, API Gateway, S3, DynamoDB, IAM, and container orchestration (EKS/ECS).
This role is part of our Digital Platform Services team, who are responsible for delivering central services to the divisions in an API first way by utilising AI and new ways of working.
This role is part of our Digital Platform Services team, who are responsible for delivering central services to the divisions in an API first way by utilising AI and new ways of working.
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Must have experience with .NET and C#, SDLC (Software Development Life Cycle), Database (SQL, Azure Data Store) and API/REST
Must have experience with .NET and C#, SDLC (Software Development Life Cycle), Database (SQL, Azure Data Store) and API/REST
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Senior Machine Learning Operations Engineer
Senior Machine Learning Operations Engineer
FIRST CENTRAL SERVICES (UK) LIMITED
Haywards Heath, West Sussex
£65,000 - £75,000 a year
Understanding of microservices architecture, RESTful API design, development, and integration
Understanding of microservices architecture, RESTful API design, development, and integration
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You understand the patterns (e.g., webhooks, polling, message queues, event-driven architectures), the challenges of API versioning, and the principles of building a scalable, multi-tenant integrations platform. * Systems Thinking: Strong understanding of modern backend building blocks: API best practices; message queues (RabbitMQ, SNS/SQS or similar); relational data stores (PostgreSQL or similar); and cloud services (AWS or similar).
You understand the patterns (e.g., webhooks, polling, message queues, event-driven architectures), the challenges of API versioning, and the principles of building a scalable, multi-tenant integrations platform. * Systems Thinking: Strong understanding of modern backend building blocks: API best practices; message queues (RabbitMQ, SNS/SQS or similar); relational data stores (PostgreSQL or similar); and cloud services (AWS or similar).
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This role is part of our Digital Platform Services team, who are responsible for delivering central services to the divisions in an API first way by utilising AI to pioneer of AI-first development practices. * Design and implement scalable microservices with API-first mindset API-First & Microservices Excellence * Create comprehensive API documentation and developer guides API-First & Microservices Architecture * Deep knowledge of API design principles and RESTful/GraphQL patterns * Understanding of service mesh, API gateways, and inter-service communication * API design and documentation tools (Swagger/OpenAPI, Postman)
This role is part of our Digital Platform Services team, who are responsible for delivering central services to the divisions in an API first way by utilising AI to pioneer of AI-first development practices. * Design and implement scalable microservices with API-first mindset API-First & Microservices Excellence * Create comprehensive API documentation and developer guides API-First & Microservices Architecture * Deep knowledge of API design principles and RESTful/GraphQL patterns * Understanding of service mesh, API gateways, and inter-service communication * API design and documentation tools (Swagger/OpenAPI, Postman)
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Related Jobs
Locations
- London
- City of London
- South East
- South East London
- East London
- Slough
- South West London
- West London
- Watford
- North London
- Lancashire
- Birmingham
- Essex
- Greater Manchester
- Cochrane Park
- Coventry
- West Sussex
- Reading
- Dundee
- Southampton
- Scotland
- Stoke-On-Trent
- Dorking
- Manchester
- Hertfordshire
- Buckinghamshire
- Newport, Gwent
- Bolton
- Sunderland
- Telford
- Newcastle Upon Tyne
- Peterborough
- Derby
- Hemel Hempstead
- West Yorkshire
- Berkshire