1 to 25 of 69 Contract REST Jobs in England

Senior Full Stack Developer (React & C#.NET)

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
proficiency in React.js, JavaScript/TypeScript, Redux/RTK, and modern UI patterns, develop framework is essential Back-end: Expertise in C# .NET Core, REST APIs, and microservices-based development is essential Python (pyspark): Experience with data pipelines and analytics is a plus. Power BI: Familiarity with developing dashboards ...

Full Stack Developer

Hiring Organisation
Devonshire Hayes Recruitment Specialists Limited
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£45,000 - £65,000 per annum
trading environments Experience with WebSockets or SignalR for real-time communication Backend development experience with .NET (C#) and/or Python Strong understanding of REST APIs and microservices architecture Experience with message brokers (e.g. RabbitMQ or Kafka) Knowledge of caching technologies (e.g. Redis) Experience with Azure DevOps/CI/ ...

Senior Backend Java Engineer

Hiring Organisation
Sanderson
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £575 per day
Strong hands-on commercial coding experience with modern Java (Java v17 min, v21 LTS or newer preferred) Strong experience with Spring Boot Experience building REST APIs/microservices from scratch Strong testing skills using JUnit, Mockito, and ideally TDD Experience with PostgreSQL or another relational SQL database Experience with Docker ...

C# / .net Software Engineer

Hiring Organisation
Experis
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day
following: Tech Stack C# .Net Core Typescript React Web API Kubernetes/Docker AWS/Azure GIT SQL/NoSQL Working Principles REST SOLID TDD Agile/SCRUM CI/CD DevOps ...

Senior FullStack Developer

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day
architectures, and creating a reusable component library Experience with Telemetry and observability of front-end applications Back-end: Expertise in C# .NET Core , C#, REST APIs, Web APIs, and microservices-based development. Experience in transforming monolithic applications into composable microservices, or modular monoliths is a plus. Python (pyspark): Some hands ...

Senior FullStack Developer

Hiring Organisation
Adecco
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £650 per day
architectures, and creating a reusable component library Experience with Telemetry and observability of front-end applications Back-end: Expertise in C# .NET Core , C#, REST APIs, Web APIs, and microservices-based development. Experience in transforming monolithic applications into composable microservices, or modular monoliths is a plus. Python (pyspark): Some hands ...

Senior Integration Engineer (Azure)

Hiring Organisation
Randstad Technologies
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £600 per day
lasting legacy by actively mentoring our permanent engineering team. What You Bring Integration Expertise: 5+ years of software development experience building robust APIs (REST, SOAP, JSON, XML) using C#, .NET, JavaScript, or Python. Azure Mastery: Deep, proven knowledge of Azure Integration Services, including API Management, Logic Apps, Service Bus, Azure ...

Java Developer - Java Frameworks, SC Cleared

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Croydon, London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £475/day
Clearance Desirable Skills React Next.js Experience working within Agile delivery teams Responsibilities Develop backend services using Java and Spring Boot Build and maintain REST APIs Work with AWS cloud infrastructure Contribute to microservices and containerised deployments Support delivery of new system builds (greenfield) Collaborate with cross-functional teams ...

Senior Automation QA Engineer (Data Engineering)

Hiring Organisation
IntaPeople
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 450 - 500 Daily
Experience Strong background in automation testing for microservices based architectures. Hands on experience building automation frameworks using Java or similar languages. Solid experience testing REST APIs, backend services, and service to service integrations. Proven experience validating data engineering pipelines (ETL/ELT, batch jobs, scheduled data builds). Strong ...

Senior Automation QA Engineer (Data Engineering)

Hiring Organisation
IntaPeople
Location
Remote, Sutton South, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
Experience Strong background in automation testing for microservices‑based architectures. Hands‑on experience building automation frameworks using Java or similar languages. Solid experience testing REST APIs, backend services, and service‑to‑service integrations. Proven experience validating data engineering pipelines (ETL/ELT, batch jobs, scheduled data builds). Strong ...

AWS and Azure Integration Specialist - SC Clearance

Hiring Organisation
Akkodis
Location
Stevenage, Hertfordshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £525 per day
Azure Logic Apps, AWS AppFlow, MuleSoft Composer) Strong understanding of cloud services and architectures in AWS/Azure Familiarity with API design and management , REST/SOAP , and event-driven architectures Hands-on experience with Python, JavaScript, or ETL/data transformati on tools Knowledge of SaaS platforms such ...

Data Solution Designer Data Science

Hiring Organisation
Stackstudio Digital Ltd
Location
Norwich, Norfolk, East Anglia, United Kingdom
Employment Type
Contract
Contract Rate
From £550 to £575 per day
NoSQL databases Big data frameworks (Spark, Hive, Databricks) MLOps & Deployment Model lifecycle management CI/CD pipelines Containerization (Docker, Kubernetes desirable) Model packaging and REST APIs Cloud & Tools (Any combination) AWS/Azure/GCP analytics and ML services MLflow, Azure ML, SageMaker, Vertex AI Version control (Git) Domain & Soft ...

Kotlin/Java Developer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Sheffield, South Yorkshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£350 - £360 per day
sharing initiatives Required Skills & Experience Strong experience in Kotlin or Java with the ability and willingness to work across both where required Experience developing REST APIs and working with frameworks such as Spring Solid understanding of microservice-based, API-driven architectures Experience with AWS or other cloud platforms Strong analytical ...

Data Engineer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £560 per day
platforms and services. Maintain data quality, security, and compliance across workflows. What you'll bring: Strong programming skills in Java. Hands-on experience developing REST APIs or microservices with Spring Boot. Experience containerising applications with Docker. Understanding of relational and NoSQL databases. Familiarity with modern data architectures (ETL/ ...

Web GIS Developer

Hiring Organisation
Stackstudio Digital Ltd
Location
Wokingham, Berkshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
From £300 to £340 per day
databases (SQL Server/PostGIS/Oracle Spatial). Ensure seamless integration of GIS applications with other enterprise systems and workflows. Develop and consume REST APIs, Web Services, and OGC standards (WMS/WFS/KML/GML). Support testing, troubleshooting, and performance tuning of GIS applications. Required Skills ...

Integration Architect

Hiring Organisation
Capita Shared Services Limited
Location
London, United Kingdom
Employment Type
Contract
APIs), including consumption of Oracle-defined integration patterns, authentication models, and non-functional constraints Deep understanding of integration patterns, middleware, APIs (REST/SOAP), and data transformation technologies Proven experience integrating MuleSoft with Oracle SaaS/PaaS platforms (e.g. Fusion ERP/HCM, OIC, OCI APIs), including consumption of Oracle ...

RPA Developer (UiPath)

Hiring Organisation
Infoplus Technologies UK Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £500 per day
Skills & Experience 36 years of hands on UIPath experience (Studio, Orchestrator, Assistant). Proficiency in VB.NET/C#, Regex, LINQ, and working with APIs (REST/SOAP). Experience integrating with OCR tools (ABBYY, Document Understanding, AI Center). Understanding of BPM, workflow modelling, and process engineering. Exposure ...

Senior Full Stack Engineer

Hiring Organisation
Access Computer Consulting
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £440/day
React, Kubernetes & Docker. Experience in building responsive, component based user interfaces using modern front end frameworks. Hands on expertise in API design and development (REST/JSON), including versioning and backward compatibility. Experience with UI testing, component testing, and front end build tooling. Experience in CI/CD pipelines, GitOps ...

Hedge Fund - Python Developer (Equities) - Trade life cycle - PnL - Kafka - Contract

Hiring Organisation
Scope AT Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
based event publishing (eg, AVRO). Strong experience performing large-scale data calculations in Python using libraries like pandas, polars, and NumPy. Experience building REST services using frameworks such as FastAPI and/or Flask. Strong SQL skills and experience working with relational databases in production environments. Hands-on experience ...

DevOps Engineer - DV Cleared

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Worcester, Worcestershire, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600/day
workflow improvements and DevOps best practices Technical Skills (Must Have) CI/CD & Automation: GitLab CI, Terraform, Ansible, Helm Charts Scripting & APIs: Python, PowerShell, REST APIs Containerisation & Platforms: Kubernetes cluster build and application delivery Application Technologies: Apache NiFi, Elastic ECK, Artifactory Secrets Management: Hashicorp Vault Operating Systems: RedHat Linux ...

Salesforce Technical Lead

Hiring Organisation
Stackstudio Digital Ltd
Location
Wokingham, Berkshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
From £470 to £500 per day
validation rules, workflows, and flows Ensure high performance, scalability, security, and maintainability of Salesforce solutions Integration & Data Management Design and implement Salesforce integrations using REST and SOAP APIs Work with middleware platforms such as MuleSoft or equivalent tools Manage data migration, data quality checks, and Salesforce data model design Ensure ...

Systems Developer

Hiring Organisation
Clear IT Recruitment Limited
Location
Loughborough, Leicestershire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£38,000 - £46,000 per annum
Logic Apps and Power Automate • Good background knowledge in setting up, configuring, and administering Azure environments, ensuring compliance, scalability, and operational excellence • Understanding of REST, SOAP and JSON integrations. • Knowledge of ITIL testing, change and release management. • Strong communication, problem solving and organisational skills. What We Offer • A varied technical ...

Senior C# Engineer - Agentic AI, AWS, .Net 9

Hiring Organisation
Smart Sourcer Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £800 to £900 per day
level backend engineer with deep, current expertise in C# and .NET Core 8/9 , capable of architecting and leading the design of distributed REST API microservices at scale. Authority in AWS serverless architecture; Lambda-first, with strong working knowledge of API Gateway, SQS, Step Functions, EventBridge ...

Senior Integration Analyst & Developer

Hiring Organisation
Outsource
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Oracle Fusion Cloud integrations, strong hands-on OIC development, solid SQL/PLSQL skills, experience with Fusion Finance and Projects modules, and familiarity with REST/SOAP APIs and BIP reporting. VBCS experience is also required. Desirable experience includes OCI services, Oracle APEX, and version control tools such as GitHub. ...

MS Dynamics 365 Developer

Hiring Organisation
Infoplus Technologies UK Ltd
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
From £350 to £400 per day
. Architecture & Integration Experience designing enterprise-grade, scalable Dynamics architectures. Integration experience with ERP systems, third-party applications, and legacy platforms. Knowledge of REST/SOAP APIs, OAuth, and security models. DevOps & Quality Experience with CI/CD pipelines (Azure DevOps preferred). Familiarity with automated testing. Strong understanding ...