1 to 25 of 54 Contract JavaScript Jobs in England

Automation Engineer

Hiring Organisation
ARM
Location
Manchester, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £650/day Inside IR35 (Market rate)
some or all of the following: Test Automation Selenium Cypress Playwright Test automation frameworks End-to-end testing API testing Programming Java Python JavaScript TypeScript API & Quality Engineering REST Assured Postman Bruno REST APIs Test strategy and quality assurance principles DevOps & CI/CD Jenkins GitHub Actions GitLab ...

Principle Engineer

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract
absence of other senior engineering leaders. Experience operating within Agile and DevOps delivery models. Desirable Skills: Application & Integration Technologies C# .NET Entity Framework JavaScript React Vue.js Windows Presentation Foundation (WPF) REST APIs Microservices architecture AI & Data Technologies AWS SageMaker Large Language Model (LLM) integrations AI-assisted analytics solutions Python-based ...

Full Stack Engineer

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £450/day Hybrid / Inside IR35
Strong understanding of MVC architecture, design patterns, and dependency injection. • Experience building and maintaining RESTful APIs. Frontend Development • Strong knowledge of HTML5, CSS3, and JavaScript (ES6+). • Commercial experience building applications with React.js. • Experience with component-based architecture and state management using: o React Hooks o Redux o Context ...

Fullstack Developer

Hiring Organisation
Qualient Technology Solutions UK Limited
Location
Reading, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £450/day
services like ECS, EKS, S3, SQS Understanding of REST APIs Understanding of CICD Good understanding of Kubernetes Nice to have Skills: Docker JavaScript: ReactJS and NodeJS preferred AWS API Gateway and Serverless technologies Message broker like Apache Kafka BPM framework Mustache template Experience in large scale integration projects involving messaging ...

Full Stack Developer

Hiring Organisation
MJA (London) Ltd
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
deliverables through to deployment. You should have the following experience: MongoDB, Express.js, Angular, Node.js, C#/.NET Core 10+ and SQL Server 19+. Programming: JavaScript and TypeScript Architecture: Microservices and distributed applications Event-Driven Architecture: Apache Kafka Kafka: Producers, consumers, topics, partitions and consumer groups Cloud: AWS application deployment ...

Full Stack Developer

Hiring Organisation
MJA (London) Ltd
Location
EC3, Broad Street, Greater London, United Kingdom
Employment Type
Contract
deliverables through to deployment. You should have the following experience: MongoDB, Express.js, Angular, Node.js, C#/.NET Core 10+ and SQL Server 19+. Programming: JavaScript and TypeScript Architecture: Microservices and distributed applications Event-Driven Architecture: Apache Kafka Kafka: Producers, consumers, topics, partitions and consumer groups Cloud: AWS application deployment ...

IdAM Application Developer

Hiring Organisation
Guidant Global
Location
Cheltenham, Gloucestershire, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £650/day
organisation. Produce and maintain technical documentation, standards, and operational procedures. Essential Skills & Experience We are looking for candidates with experience in: Python development. JavaScript development. Linux administration experience, particularly Red Hat Enterprise Linux (RHEL) or CentOS. Application development and deployment in enterprise environments. Troubleshooting and supporting applications in production. Working ...

Senior Test Engineer (SDET)

Hiring Organisation
NonStop Consulting
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700/day
changes on test coverage Essential skills Test tools: Cucumber, Playwright and K6 Version control: GitHub and Azure DevOps Microsoft-stack coding: C#, Node.js, JavaScript or TypeScript SQL and relational databases Testing on .NET, SQL and microservices, both on-prem and in the cloud Proven experience as an automation test engineer ...

Full Stack Engineer - Front End - AI

Hiring Organisation
GCS
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £551/day
teams to deliver intelligent, production- ready applications at scale. Key Responsibilities Design, build, and maintain scalable front-end applications using React, python and modern JavaScript/TypeScript. Build front-end solutions that support high data throughput, performance optimisation, and responsiveness at scale. Collaborate on the deployment of applications to cloud ...

Full Stack Engineer (Agentic AI)

Hiring Organisation
GCS
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £501/day
teams to deliver intelligent, production- ready applications at scale. Key Responsibilities Design, build, and maintain scalable front-end applications using React, python and modern JavaScript/TypeScript. * Build front-end solutions that support high data throughput, performance optimisation, and responsiveness at scale. * Collaborate on the deployment of applications to cloud ...

UI Engineer

Hiring Organisation
Pontoon
Location
Warwickshire, United Kingdom
Employment Type
Contract
Contract Rate
£550/day
years of experience in a front-end or UI engineering role, ideally in a cloud or hybrid environment. Strong proficiency in HTML, CSS, JavaScript (ES6+), TypeScript, and the Angular Framework. Expertise in automation testing, including unit, integration, and end-to-end tests. Proven experience in building responsive, accessible, and high ...

SharePoint Developer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Manchester, United Kingdom
Employment Type
Contract
Contract Rate
£495 - £540/day
upgrades Develop integrations with other enterprise systems Essential Skills 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 ...

Java Modernization Technical Architect - SC Clearance

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day Inside IR35 via Umbrella
security hardening. Containerization: Hands-on experience with Docker and Kubernetes for container orchestration. Front-End Fundamentals: Exposure to client-side technologies such as JavaScript and Angular. Clearance: Active UK Security Check (SC) clearance is strictly required prior to onboarding. Randstad Technologies is acting as an Employment Business in relation ...

Senior AI Platform Engineer - MCP AWS Agentic AI

Hiring Organisation
Method-Resourcing
Location
London, United Kingdom
Employment Type
Contract
Requirements Strong commercial experience in senior backend, platform or software engineering roles, with the ability to lead technical design and delivery. Advanced TypeScript, JavaScript and Node.js experience, particularly within microservices and distributed architectures. Strong hands-on AWS experience, designing and deploying scalable, cloud-native applications. Practical experience with Model Context ...

D365 Developer - Remote - Outside IR35

Hiring Organisation
Harvey Nash
Location
London, United Kingdom
Employment Type
Contract, Work From Home
across the platform while working in a fast-paced Agile environment. The ideal candidate will have strong experience with Dynamics 365, C#/.NET, JavaScript, Power Platform, Azure, SQL/SSIS, and Dynamics integrations (REST APIs, SOAP, XML). You'll be responsible for building custom plugins, workflows, forms, dashboards ...

Senior Java Developer - 3 Month Contract - Stockport/Hybrid

Hiring Organisation
Adecco
Location
Stockport, Greater Manchester, United Kingdom
Employment Type
Contract
understanding of Java and related frameworks (Spring, Hibernate). Solid experience with RESTful APIs and microservices architecture. Familiarity with front-end technologies (HTML, CSS, JavaScript) is a plus. Excellent problem-solving skills and the ability to work independently as well as in a team. Strong communication skills, with a keen ...

Quality Engineer

Hiring Organisation
TXP
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£460 - £461/day Inside IR35
ability to work closely with developers, contribute through pair programming, and coach others on quality engineering best practice. Technology Stack Frontend: Remix React, JavaScript Backend: Java, Spring, .NET Data: MongoDB, Oracle Tools/Technologies: RabbitMQ, JSON Key Responsibilities Design and implement test automation solutions from scratch Design, develop and maintain ...

L1 Software Engineer

Hiring Organisation
Response Informatics
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £250 per day
Required Skills Frontend React.js REST API troubleshooting JavaScript/TypeScript basics Backend Python FastAPI REST APIs Postman/Swagger Cloud AWS (EC2, Lambda, S3, CloudWatch, API Gateway, IAM) Support Incident & ticket management (ServiceNow/Jira) Log analysis and application troubleshooting Qualifications Bachelor's degree in Computer Science, IT, or related ...

Microsoft Dynamics Developer - Contract

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £625 per day
configuring Microsoft Dynamics 365 Strong C#/.NET development experience Experience with Microsoft Azure and associated cloud technologies Experience building APIs and system integrations JavaScript/TypeScript experience Experience developing custom Dynamics functionality, plugins and workflows Understanding of CI/CD and modern software engineering practices Comfortable working across both ...

Front End Developer

Hiring Organisation
Reed Technology
Location
Staffordshire, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
secure, maintainable and performant. Essential Skills & Experience Strong commercial experience developing applications using Blazor WebAssembly . Solid knowledge of: C# .NET HTML5 CSS3 JavaScript Experience integrating frontend applications with APIs and backend services. Experience building enterprise-scale web applications. Strong understanding of software development best practices. Experience working within Agile ...

Senior C# Developer

Hiring Organisation
GCS
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £416/day Inside IR35
development skills Understanding of software design principles and development best practices Experience working within complex enterprise environments Experience working with Azure Desirable Experience with JavaScript Exposure to React Experience contributing to application modernisation programmes Knowledge of Azure cloud technologies Experience within Financial Services, Investment Banking or Capital Markets environments Personal ...

Senior Frontend Developer

Hiring Organisation
Rullion Managed Services
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£650/day
handle data flow effectively. Knowledge and Skills: Demonstrated expertise as a Senior Backend Developer. Proven experience in React.js, and TypeScript development. Strong understanding of JavaScript and modern front-end technologies. Experience with state management libraries like Redux, Recoil, or similar. Familiarity with RESTful APIs Experience with version control systems, such ...

Full stack Engineer

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
Must Have - Backend: Strong Java/Python skills with Spring and Spring Boot - Frontend fundamentals: Strong HTML5, CSS3, and JavaScript (ES6+) - Modern frontend framework: Hands-on experience with React Js - Component architecture and state: Component-based design and state management (React Hooks, Redux, Context, or NgRx) - Responsive UI: Building responsive ...

Senior Python Developer (G7)

Hiring Organisation
SUMMER-BROWNING ASSOCIATES LIMITED
Location
East London, London, United Kingdom
Employment Type
Contract
Contract Rate
£0.00 - £0.01 per day
optimisation: Ability to identify opportunities to improve development processes and contribute to implementing practical solutions. Core Tech stack: Python (django and ninja) Front-end - JavaScript, HTML, CCS Familiarity with AWS GitHub and GitHub actions Claude code use NB: Active SC required for assignment To apply, please submit latest ...

Senior Software Engineer-DV Security Cleared

Hiring Organisation
Morson Edge
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£550 - 600 per day
/GPU-accelerated computing Machine learning and data analytics NumPy/SciPy, PostgreSQL/SQLite, Docker/containerised environments Ansible, Cython, Celery/Redis JavaScript, HTML5 and CSS3, Nginx/Keycloak Edge computing, sensor systems or distributed/federated architectures Signal, sensor or other complex data processing ...