51 to 75 of 224 Contract REST Jobs

Senior Java Developer

Hiring Organisation
Erin Associates
Location
Middlesbrough, North East, United Kingdom
Employment Type
Permanent Contract, On-site
Salary
£62,000
similar role Java and Spring Boot TypeScript A proven full stack development and systems integration background Experience designing enterprise-grade software solutions. REST APIs PostgreSQL or similar databases Manage containerised deployments – Docker DevOps Practices/CI/CD Pipelines Desirable – ERP Integrations, IoT Platforms, Telematics systems, Azure, Real-time date ...

Salesforce Forward Deployed Engineer

Hiring Organisation
83zero Limited
Location
City of London, South East, United Kingdom
Employment Type
Permanent Contract, Hybrid
Salary
£90,000
using Salesforce Prompt Builder. Connect AI agents to enterprise data and business processes through Salesforce Data Cloud and wider integration platforms. Build integrations using REST/SOAP APIs, MuleSoft, Platform Events and event-driven architecture. Apply prompt engineering, retrieval-augmented generation (RAG), grounding and techniques to reduce AI hallucinations. Test ...

UI Lead Frontend Engineer

Hiring Organisation
Simplex Services (UK) Ltd
Location
London, United Kingdom
Employment Type
Permanent Contract, Full Time, On-site
Salary
From £70 to £80 per hour
. Work with AEM Sites, Core Components, editable templates, client libraries, and content fragments. Integrate frontend applications with AEM Content Fragment APIs, GraphQL, and REST services. Understand AEM as a Cloud Service, including deployment pipelines, caching, and CDN considerations. Establish reusable AEM-compatible UI components and authoring-friendly design patterns. ...

Senior AI Solutions Engineer

Hiring Organisation
Proclinical
Location
Welwyn, Hertfordshire, United Kingdom
Employment Type
Contract
expertise with LLM APIs (e.g., OpenAI, Anthropic Claude) and agent frameworks (e.g., LangGraph, CrewAI). Advanced SQL skills and familiarity with Snowflake and REST API integrations. Knowledge of engineering practices such as Git, CI/CD, Docker, AWS, and observability tools. Understanding of GxP compliance, computer system validation, and data ...

Software Developer - Back-end

Hiring Organisation
Quickline Communications
Location
Cottingham, North Humberside, North East, United Kingdom
Employment Type
Permanent Contract, On-site
this role... - Strong development experience using technologies such as PHP, C++ or .NET. - A solid understanding of back-end systems and API integrations, including REST, JSON, authentication and event streams. - Hands-on experience with AWS or Heroku, CI/CD pipelines and version control tools such as Git. - Confidence working ...

Senior AI Solutions Engineer - Technical Lead

Hiring Organisation
Randstad Digital
Location
Welwyn Garden City, South East, United Kingdom
Employment Type
Temporary Contract, Hybrid
Salary
£700 - £850 per day + Outside IR35
frameworks (for example LangGraph, CrewAI or AutoGen) and LLM evaluation. Data and integration: Advanced SQL and working proficiency with Snowflake; integrating enterprise systems through REST APIs. Engineering practices: Git, CI/CD, containerisation (Docker), cloud services (AWS) and observability (logging, tracing, metrics). Regulated environments: Understanding of GxP, computer system ...

Senior Java Full Stack Engineer

Hiring Organisation
83zero Limited
Location
South East, United Kingdom
Employment Type
Permanent Contract, Hybrid
Salary
£70,000
communicating technical concepts and project progress clearly. Gather requirements and work with stakeholders to translate business needs into effective technical solutions. Develop and integrate REST APIs and cloud-native applications. Take ownership across the full software development lifecycle, from design through to deployment and support. Support the planning, coordination … Strong stakeholder management and client-facing communication skills. Experience working directly with clients to understand requirements and deliver technical solutions. Experience designing and integrating REST APIs. Proficiency with Git and platforms such as GitHub or GitLab. Experience working with AWS or Azure. Hands-on experience with Docker and Docker Compose. ...

Senior Java Full Stack Engineer

Hiring Organisation
83zero Limited
Location
Manchester, North West, United Kingdom
Employment Type
Permanent Contract, Hybrid
Salary
£70,000
communicating technical concepts and project progress clearly. Gather requirements and work with stakeholders to translate business needs into effective technical solutions. Develop and integrate REST APIs and cloud-native applications. Take ownership across the full software development lifecycle, from design through to deployment and support. Support the planning, coordination … Strong stakeholder management and client-facing communication skills. Experience working directly with clients to understand requirements and deliver technical solutions. Experience designing and integrating REST APIs. Proficiency with Git and platforms such as GitHub or GitLab. Experience working with AWS or Azure. Hands-on experience with Docker and Docker Compose. ...

Full Stack Web Developer, West Cheshire N Wales border upto 70k

Hiring Organisation
Langley James Limited
Location
Chester, North West, United Kingdom
Employment Type
Permanent Contract, On-site
Salary
£70,000
design and state management, have a solid grounding in programming fundamentals and common design patterns, and be comfortable building API-driven applications that consume REST and JSON endpoints. Knowledge of performance optimisation and accessibility standards will come naturally. It would be a bonus if you also have some familiarity with ...

Lead Power Platform Developer

Hiring Organisation
Sellick Partnership
Location
South East London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600/day
Power Pages/Portals * Power Automate * Liquid Templating * XRM API for Model-Driven Apps * Microsoft Dynamics 365 Web API/OData * JavaScript * CSS * HTML * REST APIs * Azure services and operations * FetchXML Desirable experience/qualifications will include * Dynamics 365 experience * Azure development experience * Power Platform Functional Consultant (PL-200) certification ...

Solutions Architect

Hiring Organisation
Euro Car Parks
Location
Central London, South East, United Kingdom
Employment Type
Permanent Contract, On-site
team retros, sprint reviews, story-mapping, backlog refinement) helping the entire delivery team be the best that they can. Essential Skills: · C# .NET Core, REST API Design and Development, API Management · Document or No-SQL database solutions (particularly Elasticsearch) · Messaging and microservices based architecture (Azure Service Bus, Azure Functions) · Formal ...

UI Front end Lead engineer – AEM & Generative AI (Claude)

Hiring Organisation
Vallum Associates
Location
London, United Kingdom
Employment Type
Contract
experience with Adobe Experience Manager (AEM Sites) , Core Components, editable templates and client libraries. Experience integrating frontend applications with AEM Headless, GraphQL and REST APIs . Proven expertise in frontend architecture, reusable components, design systems and performance optimisation. Hands-on experience with Claude AI/Claude Code for software development. ...

Software Engineer

Hiring Organisation
Brio Digital
Location
Leeds, West Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £500/day
progressing to beta Ensure security, safety and governance requirements are met Essential experience Strong hands-on development in Python, Java, .NET or TypeScript REST APIs and message-based or asynchronous development JSON and XML data formats Writing unit and integration tests, including smoke and sandbox testing Git, code review ...

Senior Python Developer

Hiring Organisation
Synergize Consulting Limited
Location
Bristol, South West, United Kingdom
Employment Type
Temporary Contract, On-site
time solutions using streaming and messaging technologies. · Containerise applications using Docker and manage deployments, scaling, configuration and resource optimisation within Kubernetes. · Develop and maintain REST and/or gRPC APIs. · Write unit and integration tests and contribute to CI/CD pipelines and continuous improvement. Essential Skills & Experience · Security cleared ...

SC Cleared Scala Developer

Hiring Organisation
Damia Group Ltd
Location
United Kingdom
Employment Type
Temporary Contract, On-site
Salary
£400 - £460 per day + **Outside IR35** DOE
practices. Proven experience building high-quality, scalable backend services and distributed systems. Experience with Akka, Play Framework, or similar Scala ecosystems. Strong knowledge of REST APIs, microservices, and distributed architectures. Experience working with both relational and NoSQL databases. Strong understanding of CI/CD pipelines, Git, DevOps practices, and modern ...

Senior AI Platform Engineer - MCP AWS Agentic AI

Hiring Organisation
Method-Resourcing
Location
South East, United Kingdom
Employment Type
Temporary Contract, Hybrid
Context Protocol (MCP), including MCP servers, gateways or tool integrations. Experience integrating LLMs, AI agents and agentic workflows into production applications. Strong understanding of REST APIs, service integration, authentication, authorisation and secure software development. Experience taking ownership of complex engineering projects, making architectural decisions and mentoring other engineers. Desirable: Python ...

SC Cleared Scala Developer

Hiring Organisation
Damia Group Ltd
Location
Nationwide, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £460/day **Outside IR35** DOE
practices. Proven experience building high-quality, scalable backend services and distributed systems. Experience with Akka, Play Framework, or similar Scala ecosystems. Strong knowledge of REST APIs, microservices, and distributed architectures. Experience working with both relational and NoSQL databases. Strong understanding of CI/CD pipelines, Git, DevOps practices, and modern ...

Senior Backend Engineer – Node.js & AI

Hiring Organisation
Adria Solutions
Location
Manchester, North West, United Kingdom
Employment Type
Permanent Contract, Hybrid
Salary
£85,000
maintain backend applications using Node.js. Develop APIs, database services and event-driven systems. Connect the platform with banking, payments and third-party services through REST and GraphQL integrations. Use AI coding tools to improve delivery while maintaining rigorous testing, security and code quality. Develop and deploy practical AI features that ...

Security Engineer - PKI/CLM Implementation - Inside IR35 - Up to £700 per day

Hiring Organisation
Hunter Bond
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Daily
Trust Lifecycle Manager, Venafi, AppViewX or equivalent). Knowledge of X.509, TLS/mTLS, PKCS standards and key stores, with ACME, SCEP, EST and REST API integration. Working knowledge of crypto-agility, cryptographic inventory and PQC migration planning (NIST standards). Experience in regulated financial services or similarly controlled environments. ...

Senior Agentic AI Engineer - Creative Automation - London

Hiring Organisation
Salt
Location
South East, United Kingdom
Employment Type
Temporary Contract, Hybrid
Salary
£500 - £700 per day
Hands-on experience with Model Context Protocol (MCP). Strong software engineering background in Python and JavaScript/Node.js. Extensive experience designing and integrating REST APIs. Solid understanding of prompt engineering, context engineering, and structured data formats such as JSON and XML. Excellent problem-solving and stakeholder communication skills. Desirable ...

Lead Developer

Hiring Organisation
Erin Associates
Location
Middlesbrough, North East, United Kingdom
Employment Type
Permanent Contract, On-site
Salary
£62,000
similar role Java and Spring Boot TypeScript A proven full stack development and systems integration background Experience designing enterprise-grade software solutions. REST APIs PostgreSQL or similar databases Manage containerised deployments – Docker DevOps Practices/CI/CD Pipelines Desirable – ERP Integrations, IoT Platforms, Telematics systems, Azure, Real-time date ...

Senior Technical Architect - Custody & Securities Services

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£750 - £850/day
driven systems Domain-driven designs Distributed platforms Experience with Kafka, IBM MQ, Solace or similar messaging technologies. Strong API and integration architecture experience, including REST and OpenAPI standards. Exposure to AWS and modern cloud-native architectures. Experience within architecture governance frameworks and technical review boards. Desirable Experience Knowledge of SWIFT ...

Lead Software Developer - SampleManager LIMS x2

Hiring Organisation
Stealth IT Consulting Limited
Location
United Kingdom
Employment Type
Temporary Contract, On-site
Salary
£627 per day inside IR35
connecting lab instruments (e.g. HPLC, GC, analysers) to the LIMS Enterprise integration with ERP, MES, ELN and SDMS systems, using middleware and integration tools REST and SOAP interfaces for external systems and services 5. Software engineering and lifecycle SDLC: design, development, testing, deployment and support Testing and QA: unit testing ...

SharePoint Developer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Manchester, United Kingdom
Employment Type
Contract
Contract Rate
£495 - £540/day
SharePoint Server 2019 & Subscription Edition (SE) Strong SharePoint on-prem development experience C#/.NET JavaScript/TypeScript, HTML and CSS SharePoint APIs/REST APIs Experience with custom SharePoint solutions and integrations Desirable Skills SharePoint Framework (SPFx) React PowerShell Experience modernizing or migrating legacy SharePoint solutions SharePoint Online/ ...

Software Developer

Hiring Organisation
Rodney Clarke Associates
Location
Coventry, West Midlands, United Kingdom
Employment Type
Permanent Contract, On-site
Salary
£40,000
improvements. Contribute to code reviews, testing and continuous improvement. Skills & Experience Strong commercial experience with C# and .NET/.NET Core . Experience developing REST APIs and backend services. Good knowledge of SQL Server and relational databases. Understanding of software development best practices and design principles. Experience with Azure ...