76 to 100 of 1,231 JavaScript Jobs in the UK

Lead GenAI Full Stack Engineer / Managing Consultant

Hiring Organisation
83zero Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £88,000 per annum
using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel AI (in Python or JavaScript). LLM experience: Practical experience with Large Language Models (LLMs) such as OpenAI, Anthropic, Mistral, or Llama, and tools like Ollama. Cloud Platforms: Proficiency ...

Senior React Engineer

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
related field 5+ years of experience in frontend/UI engineering, with a focus on performance and scale Deep expertise in React, TypeScript, and JavaScript Strong understanding of WebSocket integration, low-latency data streaming, and threading Experience troubleshooting data-heavy UIs and optimising load times Familiarity with tools like Redis ...

Software Engineer

Hiring Organisation
Mane Contract Services
Location
Filton, Gloucestershire, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 Annual
forward-thinking technical environment. Required experience includes proficiency in modern Java and ideally some experience with other languages such as Python, C++, JavaScript or TypeScript. Experience developing on Linux, understanding mocking and unit-testing frameworks such as JUnit, and using Git version control are important. You should have knowledge ...

Software Engineer

Hiring Organisation
Cocentric
Location
City of London, London, United Kingdom
well across disciplines Bonus: experience with identity systems (e.g. Microsoft Entra ID/Azure AD), SSO, or HRIS integration OUR TECH STACK Frontend: React, JavaScript Backend: C#, .Net, Azure Service Fabric, Kubernetes Infrastructure: Azure, Service Fabric, Cosmos DB WHY COCENTRIC Be a key part of a product that’s transforming ...

Software Engineer

Hiring Organisation
IntaPeople
Location
Swansea, West Glamorgan, United Kingdom
Employment Type
Permanent
Salary
£450000/annum
AJAX. Good knowledge of SQL Server databases and SQL queries. Desirable Skills/Experience: In-depth knowledge of frontend web development using HTML, JavaScript and CSS. ReactJS or KnockoutJS SASS for CSS generation UI Automation About the company… They are an award-winning company that work with household clients ...

R&D Tax Manager

Hiring Organisation
Pro-Tax Recruitment
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £65,000 per annum
process improvements, and oversee efficient client submissions. To be successful in this role, you'll need: Experience writing/reviewing code in Python, Java, JavaScript, C#, C++, or Go . Knowledge of Agile, DevOps, and modern architecture patterns (microservices, REST APIs). Familiarity with AWS, Azure, or GCP . Experience ...

Staff Software Engineer

Hiring Organisation
Evri
Location
United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
understanding across the full stack. Proven experience designing scalable, reliable and secure distributed systems. Strong knowledge of Java/Spring Boot and/or JavaScript/TypeScript with React/Vue. Hands-on experience with cloud technologies (AWS preferred). Understanding of modern engineering practices – CI/CD, automation, DevOps ...

Software Engineer

Hiring Organisation
Hamiltonian Dynamics Ltd
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
Salary
£75,000
Experience You will have experience in one or more of the following areas but you do not need experience in everything listed: Java, Python, JavaScript, TypeScript Angular, React, Vue Docker, Kubernetes AWS and/or Azure MERN stack Elasticsearch, Neo4J We value engineers who are open-minded, adaptable, and keen ...

Senior Software Engineer

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700/day Inside IR35
role. AWS Expertise : Strong proficiency in AWS services, particularly Amazon Lex and other AI/ML offerings. Tech Savvy : Proficiency in TypeScript and modern JavaScript frameworks. DevOps Knowledge : Solid understanding of DevOps methodologies and tools (CI/CD, Serverless, Monitoring). Contact Center Familiarity : Experience with contact center technologies ...

Dynamics 365 Developer

Hiring Organisation
Data Careers
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
Power Platform with Azure services, custom connectors, APIs, and Logic Apps Experience applying ALM principles using Azure DevOps and Power Platform Build Tools Solid JavaScript experience for client-side customisation and web resources Experience working in agile, multidisciplinary delivery teams Strong understanding of security concepts including Dataverse security and role ...

Full-stack Developer

Hiring Organisation
Leafstory
Location
Greater Liverpool Area, United Kingdom
production environments Essential Requirements Strong experience with Node.js for backend development Experience developing mobile applications using Flutter Solid understanding of web technologies (HTML, CSS, JavaScript/TypeScript) Experience with RESTful APIs and database design Strong problem-solving skills and attention to detail Excellent communication and teamwork abilities Desirable Experience with ...

Senior Java Developer

Hiring Organisation
Pontoon
Location
Welwyn Garden City, Hertfordshire, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700/day Inside IR35
What We're Looking For: To succeed in this role, you should have: Solid experience in delivering Java or other JVM languages; familiarity with JavaScript/TypeScript. Experience with cloud platforms (Azure, AWS) and infrastructure automation (Terraform). A good understanding of SQL (PostgreSQL) and NoSQL databases (e.g., Cosmos ...

Principal Software Engineer

Hiring Organisation
Eurochange
Location
Stevenage, Hertfordshire, United Kingdom, Todd's Green
Employment Type
Permanent
Salary
£60000 - £70000/annum
passionate about building systems that last. You’ll bring: Expert-level experience with C#, .NET and object-oriented design Strong front-end knowledge using JavaScript/TypeScript and React Deep experience designing and governing enterprise APIs (REST & SOAP), ideally on Azure Proven leadership in DevOps, CI/CD pipelines ...

Lead Full Stack Developer

Hiring Organisation
Hays
Location
Swindon, Wiltshire, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
experience includes: Java 11+ enterprise development using Spring, REST and/or GraphQL APIs and microservices Modern front-end frameworks such as React (JavaScript/TypeScript); experience with AngularJS or jQuery is advantageous Build and deployment tools including Maven, Git and CI/CD pipelines A strong testing mindset, including ...

Software Engineer

Hiring Organisation
guitarguitar
Location
Linwood, Scotland, United Kingdom
learning new things, and taking pride in what you build. Essential experience & skills Commercial experience with C# and .NET Entity Framework and SQL React, JavaScript (ES6+), TypeScript HTML, CSS, Sass Experience with code reviews and cross-browser testing Comfortable working in an Agile/Scrum environment Desirable (but not essential ...

Senior Software Engineer

Hiring Organisation
Cyber Guardian Consulting Group, LLC
Location
London Area, United Kingdom
zones Nice to Haves Hands-on experience integrating with third-party SaaS systems (ERP, HRIS, CRM, finance platforms, etc.) Working knowledge of frontend programming (JavaScript, HTML, CSS) Comfortable working with Excel Experience with authentication methods such as OAuth 2.0, API keys, JWT IT background with experience supporting, integrating, or administering ...

Senior Software Engineer

Hiring Organisation
Cyber Guardian Consulting Group, LLC
Location
Newcastle Upon Tyne, England, United Kingdom
zones Nice to Haves Hands-on experience integrating with third-party SaaS systems (ERP, HRIS, CRM, finance platforms, etc.) Working knowledge of frontend programming (JavaScript, HTML, CSS) Comfortable working with Excel Experience with authentication methods such as OAuth 2.0, API keys, JWT IT background with experience supporting, integrating, or administering ...

Sharepoint Developer

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £415/day
Information Technology, or similar fields. Strong understanding of SharePoint environments and Office 365 with DevOps. Hands-on development experience with Office 365 tools, CSS, JavaScript, jQuery, and HTML5. Solid knowledge of Rest API and Graph API. Desirable: Exposure to ASP.Net and C#, and familiarity with Agile delivery. Experience with ...

Software Engineer

Hiring Organisation
Lockheed Martin
Location
Brockworth, Gloucestershire, UK
variety of Defence, Cyber and Intelligence programmes. What skills will I need? Proficient in current Java, knowledge of other languages such as Python, C++, JavaScript, TypeScript, React is a bonus. Experience of developing on Linux. Appreciation of mocking and unit testing frameworks such as JUnit 5.x (Jupiter). Experienced with ...

Software Engineer

Hiring Organisation
Lockheed Martin
Location
Brockworth, England, United Kingdom
variety of Defence, Cyber and Intelligence programmes. What skills will I need? Proficient in current Java, knowledge of other languages such as Python, C++, JavaScript, TypeScript, React is a bonus. Experience of developing on Linux. Appreciation of mocking and unit testing frameworks such as JUnit 5.x (Jupiter). Experienced with ...

Software Engineer (React Native) - UCX

Hiring Organisation
Hargreaves Lansdown
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
app. What We're Looking For 5+ years of professional mobile development experience, with 2+ years using React Native. Strong knowledge of JavaScript/TypeScript, ES6+ features, and modern React patterns. Experience integrating third-party libraries, analytics tools, and mobile SDKs. Strong understanding of secure mobile development, especially within financial ...

Senior Software Engineer (React Native) - UCX

Hiring Organisation
Hargreaves Lansdown
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
mobile technologies. What We're Looking For 8+ years of professional mobile development experience, with 5+ years using React Native. Strong knowledge of JavaScript/TypeScript, ES6+ features, and modern React patterns. Experience integrating third-party libraries, analytics tools, and mobile SDKs. Strong understanding of secure mobile development, especially within ...

Senior Developer

Hiring Organisation
Project Better Energy
Location
Greater Manchester, England, United Kingdom
attention to detail. Proven ability to mentor others, influence technical direction, and deliver outcomes with autonomy. Desirable Skills Experience with Vue.js or similar modern JavaScript frameworks. Familiarity with Bootstrap , Tailwind , or responsive UI principles. Knowledge of automated testing, containerisation (Docker), or cloud hosting environments. Interest in infrastructure management, DevOps ...

Software Developer - Full Stack - C#, JavaScript, React

Hiring Organisation
Vermillion Analytics
Location
Surrey, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £60,000 per annum
Senior Software Developer – Epsom £55,000 - £60,000 | Full-time, Permanent | Hybrid No sponsorship offered Why This Role Is For You Developers, the market has been uncertain recently. Many roles are being reshaped by AI ...

Senior Software Engineer

Hiring Organisation
Anonymous
Location
Cambridge, Cambridgeshire, United Kingdom
Employment Type
Permanent
Salary
£55000 - £75000/annum BONUS
/USB3 Industrial Libraries, Microsoft Teams, Jira, GitHub, Bitbucket. Gitkrake Software Engineers will have strong ability to write clean code in python, C++, and JavaScript Very strong communication skills and ability to work independently to meet deadlines A demonstrated ability to rapidly pick up new skills in context and apply ...