1,551 to 1,575 of 1,796 JavaScript Jobs in the UK

Senior Software Engineer

Location
City Of London, England, United Kingdom
business logic, build clean services, and verify changes in shadow mode with zero downtime to revenue flows. Extract business rules scattered across C#, embedded JavaScript and undocumented SQL stored procedures into a clean, tested, dependency-free rules assemblies. Build new services cleanly. with proper Dependency Injection (DI), robust authentication/… happy working in it today. High proficiency in reading, understanding, and safely refactoring complex, stored-procedure-heavy database logic. Working proficiency in JavaScript/TypeScript. You’ll be interacting with both jQuery on the legacy .NET front end and modern TypeScript microservices on our sister platform. A strong "legacy technology ...

Software Development Engineer III

Location
Greater London, England, United Kingdom
issues, perform root cause analysis and continuously improve reliability, quality and speed of delivery. Build and maintain web-based user interfaces using React.js, modern JavaScript/TypeScript, HTML and CSS, enabling colleagues to interact effectively with data and AI based tools. Technical Excellence: Promote strong software engineering practices across backend … powered applications (e.g. copilots, assistants, agent based workflows), with a focus on reliability and real user impact. Good working knowledge of React.js and modern JavaScript/TypeScript, with experience building and maintaining production web interfaces. Proficiency with HTML and CSS, and an understanding of usability, accessibility and performance considerations. Experience ...

Senior QA Automation Engineer

Location
Greater London, England, United Kingdom
driving it from partial implementation to full adoption across the applications in scope Develop across the full stack: front‐end interfaces in React and JavaScript, and back‐end services, automation logic and data processing in Python Extend the platform interface so that test design, execution, evidence capture, results and stakeholder … exposure is welcome but not required Strong, current, hands‐on full‐stack engineering experience with a specialism in test automation. Front end: React and JavaScript, to a standard sufficient to build and maintain production interfaces Back end: Python, for automation logic, service development and data manipulation CI/ ...

Test Automation Engineer

Hiring Organisation
Ricoh
Location
Birmingham, West Midlands (County), United Kingdom
Employment Type
Permanent
coverage. Specifying automated test cases and reviewing test approaches with manual testers and other quality engineering professionals. Developing and maintaining automated tests using Playwright, JavaScript , and TypeScript . Investigating test failures, identifying root causes, and improving the reliability and maintainability of our automation assets. Performing peer reviews and contributing … preference given to studies in Computer Science, Software Engineering, or a related field Previous experience within test automation including experience developing automated tests using JavaScript and TypeScript. Proven background and experience with Playwright or a comparable modern test automation framework. Any experience using AI-assisted development tools such as Cursor ...

Senior QA Automation Engineer

Location
Greater London, England, United Kingdom
driving it from partial implementation to full adoption across the applications in scope. Develop across the full stack: front-end interfaces in React and JavaScript, and back-end services, automation logic and data processing in Python. Extend the platform interface so that test design, execution, evidence capture, results and stakeholder … exposure is welcome but not required. Strong, current, hands-on full-stack engineering experience with a specialism in test automation. Front end: React and JavaScript, to a standard sufficient to build and maintain production interfaces. Back end: Python, for automation logic, service development and data manipulation. CI/ ...

Technical Support Engineer

Location
Greater London, England, United Kingdom
summaries. Use developer tools like GitHub Copilot within Visual Studio to trace codebase logic, debug application errors, and accelerate code reviews in Ruby, C#, JavaScript, and ASP.NET. Use advanced prompt engineering with LLMs such as Gemini or Copilot to investigate system logs, interpret API failures within Postman, and create novel … engineering experience Experience with API/web services. SQL experience querying and modifying data using MYSQL, MS SQL Server, MongoDB, Snowflake Experience with C#, Javascript, Visual Studio, Ruby, Python and ASP.NET Experience using Incident Management and/or Project Management software Experience with multiple integrated software products/services Experience ...

Full Stack Developer

Hiring Organisation
Appcast
Location
Bristol, UK
Bristol50000 - 60000 per annum + Pension, Bonus PermanentFull Stack Developer55,000 – 60,000Bristol – Hybrid (3 days per week in the office)We are looking for a .NET Developer to join a well-established, independently owned ...

Senior Java Developer

Location
Greater London, England, United Kingdom
Overview The Senior Java Engineer at NCG will play a pivotal role in designing and implementing high-quality software solutions within the ITES sector. This role is crucial in driving technical innovation and ensuring the ...

javascript developer for NHS scheduling

Location
Greater London, England, United Kingdom
Contribute to technical discussions and decision-making Influence best practices and technology choices Mentor and develop other team members Требования: Front-end experience with JavaScript and modern Angular, including Angular 21 Experience with relational databases and SQL query writing Good understanding of REST APIs, real-time systems, and CI/ ...

Lead Software Engineer - Frontend Engineering - React Native

Location
Greater London, England, United Kingdom
practices in mobile development. Drive continuous improvement initiatives to enhance development processes and workflows. Required qualifications, capabilities and skills Formal training or certification on JavaScript concepts and proficient advanced experience Strong knowledge of JavaScript, TypeScript, and ES6+ syntax Ability to write testable, clean JavaScript code Familiarity with writing unit tests … written and verbal communication skills in English Preferred qualifications, capabilities and skills Proficiency in React framework & Building applications using React Native in TypeScript or JavaScript Native application development across Android/iOS in Kotlin/Swift Understanding of REST APIs and GraphQL Comfortable working with projects partially or fully using ...

PHP & JavaScript Software Developer

Hiring Organisation
Rise Technical Recruitment
Location
Bristol, United Kingdom
Employment Type
Permanent
Salary
£50000 - £60000/annum Hybrid working, great benefits
Software Engineer (PHP & JavaScript) Bristol, hybrid, typically 1 day a week in the office £50,000 to £60,000 + 28 days holiday + bank holidays, PMI, pension, social events If you like the idea of owning proper, business critical software rather than being one tiny cog in a huge … backend, building and evolving the core systems that power operations, reporting, analytics and their B2B customer portal, while also being comfortable in a modern JavaScript front end. You will work closely with the Head of Development on solution design and architectural decisions, and with end users across the business ...

Coding and Programming Trainee

Hiring Organisation
ITOL Recruit
Location
Exeter, Devon, United Kingdom
Employment Type
Full-Time
Salary
£28,000 - £35,000 per annum
selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python ...

Junior iGame Developer

Hiring Organisation
Searchability®
Location
Birmingham, England, United Kingdom
JUNIOR iGAME DEVELOPER (JAVASCRIPT/TYPESCRIPT/JAVA/C++) KEY POINTS Birmingham-based, full-time role Salary £27-30K DOE Skills in either - JavaScript/TypeScript/Java/C++ development skills Opportunity to join a brand-new team in a growing area of the business ABOUT … country. Due to continued growth and expansion within their digital gaming offering, they’re looking for grads and juniors with a background in JavaScript/TypeScript/Java/C++ for a long term career in iGame Development. You will join their Birmingham-based team and help build visually engaging ...

Software Engineer Specialist

Location
Birmingham, England, United Kingdom
Change Ownership Proven experience coordinating software releases, production deployments, risk assessment, dependency management and CI/CD processes within enterprise environments. Modern Web Engineering (JavaScript/TypeScript, React & Node.js) Hands‐on experience developing and supporting modern web applications using JavaScript/TypeScript, React, Node.js and API-driven architectures. Desirable Skills ...

Software Engineer

Location
Greater London, England, United Kingdom
projects that promote international development and sustainability! Technologies The current team works primarily with Python (for data engineering, analysis and back-end development) and JavaScript (for front end development). We are looking for a candidate with strong experience in Python, and knowledge of JavaScript is a definite plus. … this role, feel free to get in touch and we’ll be happy to discuss further. Preferred Qualifications Experience with Vue or other similar JavaScript framework Experience with simple NLP methods using Gensim and scikit-learn Knowledge of testing methodologies and an uncompromising ethic around automated testing Experience with microservices ...

Full Stack Engineer + AI / AI Tooling BetterMe Responds Quickly $$$$

Location
United Kingdom
# Full Stack Engineer (PHP + JavaScript + AI)BetterMeResponds Quickly$$$$ Ukrainian Product**About us:****BetterMe** —a global wellness ecosystem empowering millions to become better — physically, mentally, and emotionally. We build what makes people better and keep challenging ourselves to inspire others.**About the role:**We are looking … Full Stack Engineer (PHP + JavaScript + AI)** to join our **Workouts team**, responsible for the physical activity experience of our users: workouts, workout plans, fitness data, and integrations.You will build and improve product features, enhance content management systems, and contribute to the reliability and scalability of our applications. ...

Senior Front End Software Engineer - Application Development

Location
Greater London, England, United Kingdom
such as Blueprint, Material‐UI, or similar. Strong frontend coding skills used to write clean, effective code, regardless of framework, and existing proficiency in JavaScript and understanding of how web technologies work. Familiarity with data structures, loading patterns, frontend frameworks, and other technical tools and concepts. Proficiency with programming languages … such as JavaScript/TypeScript, or similar languages. Strong written and verbal communication skills. Life at Palantir We want every Palantirian to achieve their best outcomes, that’s why we celebrate individuals’ strengths, skills, and interests, from your first interview to your long‐term growth, rather than rely on traditional ...

Full Stack Developer

Hiring Organisation
Devonshire Hayes Recruitment Specialists Limited
Location
Upminster, Essex, United Kingdom
Employment Type
Full-Time
Salary
£30,000 - £45,000 per annum
Full Stack JavaScript Developer with a proven track record of developing single-page applications, we have a new role we would like to discuss with you. Please note this role requires onsite attendance four days a week in Upminster, Essex. The client is building a platform that guides consumers through … complete online customer journey, from their first visit through identity verification, e-signature and submission. As a Mid-Level Full-Stack JavaScript Developer, you'll work across the platform: a React single-page application on the front end, Node.js APIs and background workers on the back end, and Microsoft ...

Azure Cloud FullStack

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £520/day
Apps Create clean front-end features using React, Angular or Vue.js Deliver back-end services using .NET, Node.js, or Python Work with JSON and JavaScript to build and consume data-driven interfaces Script and automate operational tasks using PowerShell Apply strong Azure security practices throughout development Troubleshoot issues and support … Front-end development experience with React/Angular/Vue.js Back-end development experience with .NET, Node.js or Python Working knowledge of C# and JavaScript, with confidence using JSON Ability to develop with security in mind, particularly around Azure A collaborative, problem-solving mindset-comfortable investigating and fixing issues ...

Information Security Engineer Lead

Location
Greater London, England, United Kingdom
years of experience with security assessments, security design reviews, or security engineering. Experience in one or more general purpose languages, preferably C#, Python, C++, Javascript or Java. Experience with cloud infrastructures like Azure, GCP or AWS Preferred Qualifications 10 years of experience with security assessments, security design reviews, or security … engineering. Understanding both offensive and defensive security methods. Experience in three or more general purpose languages, preferably C#, Python, C++, Javascript or Java. Good knowledge and experience with breaking and securing cloud infrastructures like Azure, GCP or AWS #J-18808-Ljbffr ...

Software Engineer

Hiring Organisation
Damia Group Ltd
Location
Guildford, Surrey, United Kingdom
Employment Type
Permanent
Salary
£60000 - £80000/annum
Experience with Linux systems , including configuration and administration Experience with some of the following: C/C++ Python and/or MATLAB HTML/JavaScript and GUI development Git and/or Subversion What you'll be working on You'll have the opportunity to work on technically interesting projects … including: Developing novel signal and image processing applications Developing secure Cross Domain Solutions Building user interfaces using Java or HTML/JavaScript Supporting and training customers in the use of our software Mentoring and leading other developers Security clearance requirement This role requires candidates to undergo UK Developed Vetting ...

Principal Consultant-Oracle CPQ Cloud-UK

Location
Greater London, England, United Kingdom
Configure and extend Oracle CPQ using BML, BMQL, Commerce and Configuration rules, data tables, formula management, and process actions. Develop user interface enhancements using JavaScript, HTML, CSS, and supported platform capabilities. Build and govern REST/SOAP integrations, payload mappings, error handling, and orchestration through Oracle Integration Cloud or equivalent … product configuration, commerce, pricing, approvals, guided selling, and document generation. Strong hands‐on expertise in BML, BMQL, data tables, Commerce rules, Configuration rules, JavaScript, HTML, CSS, XML/JSON, and web services. Experience integrating Oracle CPQ with CRM and ERP platforms using REST/SOAP APIs and middleware such ...

Solutions Engineer, Real-Time Intelligence Platforms – Security Clearance

Location
Greater London, England, United Kingdom
Palantir Foundry work with pipelines, ontology, Compute Modules, Code Repositories, Workbooks, and application development Fluency in at least one of Python, Java, SQL, TypeScript, JavaScript, Bash, or Go Three years or more of professional software or forward-deployed/solutions engineering experience shipping systems into production Ability to quickly learn … Containerization Kubernetes Orchestration Solutions Engineering Experience ATS Optimization Keywords Hard Skills Data Pipeline Development Ontology Modeling Application Development SQL Programming Java Programming TypeScript Programming JavaScript Programming Bash Scripting Go Programming Networking Fundamentals Soft Skills Stakeholder Communication Problem-Solving Adaptability Industry Keywords Defence Security Situational Awareness Force Protection Command-and-Control ...

Senior AI Engineer - Manchester

Hiring Organisation
Circle Group
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
develop a small team of engineers while promoting best practices Skills & Experience * Strong experience with AI engineering, or software engineering (e.g. Python, Java, JavaScript/TypeScript etc.) with libraries/frameworks such as PyTorch, TensorFlow etc.) * Experience with RAG and LLM-based solutions * Solid understanding of AI architectures and data … send your CV directly to matthew leach @ circle recruitment Keywords: AI Engineer/Artificial Intelligence/Software Engineer/Python/Java/JavaScript/Manchester Circle Recruitment is acting as an Employment Agency in relation to this vacancy. Earn yourself a referral bonus if you refer somebody else ...

Software Validation Engineer

Hiring Organisation
Carbon 60
Location
Yateley, Hampshire, United Kingdom
Employment Type
Permanent
executing comprehensive validation plans Delivering functional, performance and regression testing Developing automated test programs and scripts using languages such as C#, C++, Python, JavaScript or TypeScript Determining the appropriate balance between manual and automated testing Maximising test coverage across critical product features Defining requirements for test tools, environments and supporting … across technologies such as web, Windows and APIs, ideally within an engineering environment Proficiency in one or more programming languages, including C++, C#, Python, JavaScript or TypeScript Strong understanding of the software development lifecycle, DevOps and continuous integration Experience working within a structured software engineering environment Familiarity with software architecture ...