76 to 100 of 791 JavaScript Jobs in the UK

QA Analyst & Performance Testing

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Southampton, Hampshire, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £60,000 per annum
years building and working with automation frameworks, using tools such as Selenium, Playwright or Cypress, and be comfortable coding in languages like Java, JavaScript or Python. Alongside this, you'll have practical experience of integrating testing into CI/CD pipelines using tools such as Jenkins, GitHub Actions or Azure ...

Agentic / GenAI Consultant / Senior Consultant

Hiring Organisation
Capgemini
Location
Greater London, United Kingdom
Employment Type
Full Time
good cross-section of these skills, along with the adaptability and curiosity to learn new tools as projects demand. Languages & Frameworks: Python (3.10+), TypeScript, JavaScript (ES6+), SQL, Bash · Frontend: React.js, Next.js (App Router & Server Components), Tailwind CSS, ShadCN UI, Redux, Zustand, Jest, Cypress. Build AI product UX patterns (streaming, review ...

Senior Dynamics Developer

Hiring Organisation
Intellectual Property Office
Location
Newport, Gwent, Wales, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
deep understanding of architectural principals such as SOA and Micro-Services Technical aptitude Proficiency in one or more of these languages: C#, Python, JavaScript, Typescript Experience writing and implementing Unit Testing How to Apply Click the 'Apply now' button and complete the application form by providing the following: Your ...

Senior Web Engineer

Hiring Organisation
Santander UK
Location
United Kingdom
Employment Type
Full Time
Skills Global: Mastery of TypeScript (strict mode, generics, discriminated unions, utility types, type-safe public API surfaces). (Required). Strong command of modern JavaScript (ES2022+, ES modules, async/await). (Required). Knowledge of visibility and extensibility/API-surface control (internal vs public boundaries, barrel exports, package.json ...

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

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
collaborative environment and are eager to make an impact, we want to hear from you! Technical Skills Front-end: Strong proficiency in React.js, JavaScript/TypeScript, Redux/RTK, and modern UI patterns, develop framework is essential - More to React JS and Java script Back-end: Expertise in C# .NET … RESTful APIs with a focus on scalability and resilience. Create UI Components: Craft responsive and modular UI components using React JS and modern JavaScript/TypeScript patterns. Collaboration: Work closely with business stakeholders and domain experts in Risk, Regulatory Reporting, and Finance. Power BI Expertise: utilise your knowledge of Power ...

Senior Full Stack Developer - Python, Node & AWS

Hiring Organisation
Ashdown Group
Location
Northampton, Northamptonshire, East Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
full development stack. To be considered for this position, you will need solid hands-on skills with: Python Node.JS AWS, S3 & Lambda React JS, JavaScript, CSS & HTML Redshit or equivalent SQL As a Senior Full Stack/Senior Software Engineer, you will be responsible for the development, deployment & support ...

Systems Architect

Hiring Organisation
Harvey Nash
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £130,000 per annum
senior stakeholders. Key Skills: Enterprise & Solution Architecture AWS/Cloud-Native Platforms Microservices & APIs DevOps, CI/CD & Infrastructure as Code Java, C#, TypeScript, JavaScript, or C++ Financial Services, Capital Markets, Trading Platforms, or Front Office systems experience Desirable: Kubernetes, Docker, and modern distributed architectures You'll play ...

Senior QAT Analyst (SC Cleared)

Hiring Organisation
scrumconnect ltd
Location
City, Newcastle Upon Tyne, United Kingdom
Employment Type
Permanent
Salary
GBP 50,000 - 65,000 Annual
testing approaches, tooling, and quality governance. Essential Skills & Experience Extensive experience in software testing and quality assurance leadership. Strong knowledge of HTML, CSS, JavaScript, and Node.js. Experience designing and implementing automated testing frameworks. Strong understanding of CI/CD pipelines and DevOps practices. Experience developing and executing enterprise-scale test ...

Software Engineering Specialist

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£605/day
based environments Strong focus on automation and continuous improvement Good collaboration and problem-solving skills Technical Experience (some of): Programming/scripting (Python, Java, JavaScript, etc.) CI/CD tools (GitLab, Jenkins) IaC (Terraform, Ansible) Containers (Docker, Kubernetes) Cloud (AWS, Azure, GCP) Observability (Prometheus, Grafana, ELK) Git/source control ...

Software Developer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent
Salary
£60,000
Good knowledge of relational databases (e.g. MySQL) Comfortable working in collaborative, agile environments Passion for writing clean, maintainable, and scalable code Desirable Frontend exposure (JavaScript, TypeScript, React) Experience with Docker or containerised environments Understanding of microservices or serverless architecture Experience with automated testing/TDD Laravel PHP Developer | Bristol | Hybrid ...

Senior Full Stack Engineer

Hiring Organisation
Daniel James Resourcing Ltd
Location
United Kingdom
Employment Type
Permanent
Salary
£45,000
code reviews and delivery planning Collaborating closely with Product, QA, Data, Platform and Operations teams What we're looking for Commercial React experience Strong JavaScript or TypeScript skills Experience building and maintaining production software Understanding of software design, testing and maintainability Experience working with APIs and backend services Confidence using ...

Founding Software Engineer

Hiring Organisation
Adria Solutions
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Evolving into a senior leadership role with ownership of the technology function. What We're Looking For Strong commercial experience with React Native. Solid JavaScript/TypeScript expertise. Experience with modern frontend and mobile development practices. Knowledge of related technologies such as: React Node.js Cloud platforms (AWS, Azure ...

Microsoft Dynamics 365 and Power Platform Specialist

Hiring Organisation
Emporia Consulting Group Limited
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
environment. Demonstrate strong experience working with Microsoft Dataverse, including data modelling, security roles, relationships, and solution configuration. Develop and customise solutions using C# and JavaScript, extending Dynamics 365 and Power Platform capabilities where required. Use HTML and CSS to support user interface customisation and styling. Work with Git code repositories ...

Power Platform Developer

Hiring Organisation
Henderson Drake
Location
Ipswich, Suffolk, United Kingdom
Employment Type
Permanent
Salary
GBP 40,000 - 44,000 Annual
solutions. Desirable Experience Any exposure to the following would be beneficial but is not essential: Azure services APIs and system integrations HTML, CSS, and JavaScript Azure DevOps C#/.NET Salesforce integrations Agile development environments Why Apply? Work alongside an experienced Senior Power Apps Developer Gain exposure to a wide ...

Senior Typescript Engineer JBLE1 NI

Hiring Organisation
Ocho
Location
Belfast, UK
reliability, scalability, and maintainability through best practices. Mentor junior engineers and contribute to a culture of technical excellence. Essential Skills & Experience Strong proficiency in JavaScript/TypeScript with Node.js on the server side. Proven track record delivering production-grade, maintainable software. Solid understanding of system architecture and cloud-native design. ...

Senior Ruby Engineer - £110K

Hiring Organisation
Run-Time Group Ltd
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
strong ability to align technical direction with business strategy in fast-moving, product-centric environments. Key requirements: Ruby & Ruby on Rails Full-Stack Engineering: JavaScript, TypeScript, React, Hotwire, Stimulus Node.js & React exposure beneficial API Design: REST, GraphQL, external integrations Data Stores: PostgreSQL, MySQL, Redis, Elasticsearch Async Processing: Sidekiq, Resque Cloud ...

Senior Software Engineer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Nottingham, Nottinghamshire, East Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
Supported by a talented Development team with 6 developers and other technical staff. Requirements Minimum 5 years of experience in commercial C# .NET Development JavaScript/TypeScript, HTML + CSS Angular Azure DevOps (CI/CD) Desirables C# .NET Core Azure Serverless experience (App Services, Functions, Storage, Service Bus, etc. ...

Senior Dynamics Developer

Hiring Organisation
Reed
Location
Newport, Gwent, Wales, United Kingdom
Employment Type
Full-Time
Salary
£47,766 - £58,575 per annum, Inc benefits
Platform (Power Apps, Power Automate) Solid understanding of architecture patterns such as microservices and SOA Proficiency in at least one of the following: C#, JavaScript/TypeScript, or Python Experience writing and maintaining unit tests Strong integration experience across Azure services Working Arrangements Hybrid working model with some on-site ...

Senior Web Developer

Hiring Organisation
Office Angels
Location
Basingstoke, Hampshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
Competitive salary
security remediation activities Contribute to improving cyber security awareness and best practices Key Skills & Experience Strong experience with: Java/Kotlin Spring Boot React, JavaScript, CSS Solid experience with: MS SQL Server (database design & development) Git/Azure DevOps Development tools such as IntelliJ Proven track record delivering web-based ...

Senior M365 Developer

Hiring Organisation
Hays Technology
Location
Ashton-Under-Lyne, Greater Manchester, United Kingdom
Employment Type
Permanent
Salary
£47000 - £55000/annum £47000- £55000+ Excellent Benefits
using Microsoft Power Platform and Microsoft 365 Knowledge of Dataverse, SharePoint Framework, Microsoft Graph API, and Azure services Experience with programming languages such as JavaScript, C#, Power Fx, HTML, and CSS Proven experience integrating third-party systems via APIs Understanding of security, compliance, and governance within M365 environments Experience working ...

Apigee Developer

Hiring Organisation
ARM
Location
Slough, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £470/day
Hybrid) Strong understanding of API design principles (RESTful services, OpenAPI/Swagger) Experience implementing API security (OAuth2, JWT, SAML, TLS) Hands-on experience with JavaScript (for Apigee policies) and API policy configuration Familiarity with microservices architecture and cloud platforms (GCP preferred) Experience with API management concepts: traffic management, caching, throttling ...

Test Engineer

Hiring Organisation
Peregrine
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
strategies. Knowledge of non-functional testing e.g. Performance, Security and Accessibility including test types, test tools, and standards Active SC clearance HTML CSS JavaScript Node ...

Senior Full Stack Software Developer

Hiring Organisation
Corpay
Location
Central London, London, United Kingdom
Employment Type
Permanent
equivalent experience. Experience: 8+ years of professional software engineering experience. Required Experience: C# and .NET development across web and/or desktop applications. JavaScript or TypeScript. SQL Server, relational database design, stored procedures, and T-SQL. HTTP APIs and service-oriented or distributed systems. Message queues, service buses, asynchronous processing ...

Microsoft Power Platform Developer (Copilot Studio Experience)

Hiring Organisation
Crowe UK
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
pipelines (Azure DevOps or GitHub) Source control Ability to write and optimise expressions, formulas, and logic within Power Platform tools Basic knowledge of: JavaScript/TypeScript (for extensions) JSON and API integrations Understanding of: Generative AI grounding and data sources Prompt design and conversation design best practices Managing fallback, escalation ...

Senior Software Engineer

Hiring Organisation
Elsevier
Location
Greater London, United Kingdom
Employment Type
Full Time
Services (AWS) - Strong experience using GitHub Actions within a CI/CD pipeline - Solid Python knowledge - Experience with front-end technologies such as JavaScript and Node - Experience working with Web Application Firewall (WAF) technologies and Cloudflare features - Solid working experience with Git and SQL - Knowledge of Terraform and experience working ...