51 to 75 of 810 JavaScript Jobs in the UK

Senior React Developer

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 - £140,000 per annum
Experience 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, Kafka ...

Java Developer

Hiring Organisation
Anson Mccade
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Permanent, Work From Home
residency, no gaps longer than 30 days) Nice-to-Have: TDD/BDD experience Exposure to enterprise middleware, secure integrations, or frontend technologies (JavaScript) Experience with microservice architectures or large-scale software delivery What's on Offer: Competitive salary with bonuses Hybrid working : 3 days per week in Newcastle office ...

Lead GenAI Full Stack Engineer / Managing Consultant

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£85,000
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 ...

Java Full Stack Developer

Hiring Organisation
Mastek
Location
Reading, England, United Kingdom
collaboration and engineering the best possible Java code. Must Have Skills: Experience with Java 8, Java 11, Spring Framework, Spring Boot Solid understanding of JavaScript: Angular and NodeJS preferred Practical Micro services development experience • Practical Relational Database development experience (e.g. PostgreSQL) REST APIs • Strong understanding CI and DevOps technologies (Hands ...

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 ...

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 ...

Geospatial Software Engineer

Hiring Organisation
ISR Recruitment Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
making. Skills and Experience: Essential 3+ years' experience in a Full Stack Engineering role Strong development skills in .NET, Java or Python, alongside modern JavaScript frameworks/libraries Experience working in Agile environments (Scrum, Kanban, TDD) Solid understanding of architectural and design patterns, including microservices and serverless Hands-on experience ...

Geospatial Software Engineer

Hiring Organisation
ISR RECRUITMENT LIMITED
Location
Manchester, United Kingdom
Employment Type
Permanent
Salary
£60000 - £90000/annum (plus company benefits & bonuses)
making. Skills and Experience: Essential 3+ years’ experience in a Full Stack Engineering role Strong development skills in .NET, Java or Python, alongside modern JavaScript frameworks/libraries Experience working in Agile environments (Scrum, Kanban, TDD) Solid understanding of architectural and design patterns, including microservices and serverless Hands-on experience ...

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 ...

Principal Software Engineer

Hiring Organisation
Eurochange
Location
Stevenage, Hertfordshire, United Kingdom
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 ...

Senior Software Engineer

Hiring Organisation
Cyber Guardian Consulting Group, LLC
Location
City of London, London, 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 ...

Integration Developer

Hiring Organisation
Shaw Daniels Solutions
Location
United Kingdom
interpreting designs and patterns provided by other team members and approved 3rd parties into workable, scalable, reliable solutions. Proficient in creating code, processes, JavaScript, T-SQL, formulas, C#, PowerShell and other scripts as required. Proficient in manipulating and working with a range of data formats including JSON, XML, delimited text ...

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 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 ...

Full Stack Developer

Hiring Organisation
Tilo Consulting
Location
Bath, Bath and North East Somerset, Somerset, United Kingdom
Employment Type
Permanent
Salary
£50000 - £60000/annum Excellent Benefits
prioritisation skills. Key Skills Required Hands-on experience working with Azure. Good understanding of REST API and microservices concepts and Azure functions C#.Net JavaScript, TypeScript React/Angular/Vue This is a hybrid position where candidates will be expected to come to the office once a week. Please apply ...

Junior Software Developer – C#/.Net/Azure

Hiring Organisation
Lorien
Location
London Area, United Kingdom
back-end technologies We are interested in hearing from candidates who have the following capabilities: Strong experience with C#, .NET, SQL, Angular, HTML, and JavaScript Eagerness to learn and implement new learning. Desirable Criteria It would also be beneficial, but not mandatory, to have meet some ...