1 to 25 of 253 Permanent JavaScript Jobs in the South East

Software Engineer

Hiring Organisation
First Central Group
Location
Haywards Heath, West Sussex, United Kingdom
Salary
£ 70 K
Values and guidelines and other relevant standards/regulations at all timesSkillsProven experience in software developmentProficiency in front-end and back-end technologies (e.g., JavaScript, HTML/CSS, REST APIs, SQL/NoSQL, Angular, Microsoft .NET)Experience with version control systems (e.g., Git)Experience of SQL writing and general database ...

Senior Software Developer

Hiring Organisation
Addition
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
maintainable production code in Python and TypeScript. Proven experience building complex user interfaces and software integrations using React or similar technologies. Strong knowledge of JavaScript, HTML and CSS. A good understanding of programming concepts, data structures, algorithms and HTML DOM components. Experience working with browser and web APIs, including HTML ...

Mid-Level Full-Stack Developer

Hiring Organisation
Nextech Group Limited
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
Salary
£50,000
front-end and back-end. You'll ideally have: Strong commercial experience as a Full Stack Developer or Software Developer. Strong experience with JavaScript/TypeScript . Experience with a modern front-end framework such as React, Angular or Vue.js . Strong back-end development experience with Node.js, .NET ...

Full Stack Developer

Hiring Organisation
Corus Consultancy
Location
Crawley, West Sussex, United Kingdom
Employment Type
Permanent
Salary
£50000 - £60000/annum
backend development. You will ideally have: 3+ years' professional experience developing full-stack web applications and delivering software into production. Strong practical experience with JavaScript or TypeScript, React and Next.js, or strong React experience with the willingness to develop your Next.js skills. Good practical experience with C# and .NET, including ...

Experienced .NET Engineer

Location
Maidstone, England, United Kingdom
following: .NET Core 3.1 ASP.NET MVC (Core), Razor Pages, Blazor EF Core Azure (Web Apps, Serverless, Messaging, SQL Server/CosmosDB) HTML, CSS and JavaScript frameworks (React/Angular) CI/CD tools (Azure DevOps, CircleCI) Entity Framework Nice to Have Experience with API design (REST, JSON) Knowledge of distributed ...

Software Engineer - Data & AI

Location
Woking, England, United Kingdom
early. What You'll Bring Python (FastAPI), Node.js, REST APIs. SQL and PostgreSQL. Redis/Valkey for session and WebSocket coordination at scale. Strong JavaScript/TypeScript, HTML5, CSS React (or equivalent), component architecture, state management. Responsive design, web performance (Core Web Vitals: LCP/INP/CLS). ...

Senior Software Engineer

Location
Crawley, England, United Kingdom
preferred. Strong experience building APIs and microservices, including REST and gRPC, is needed. Database experience with PostgreSQL is required. Frontend experience with Angular, JavaScript, HTML5 and CSS3 is needed. Hands-on experience with Docker, Kubernetes and CI/CD pipelines is required. Familiarity with cloud platforms, infrastructure automation and open ...

Angular Developer, Hybrid

Hiring Organisation
Sanderson
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£300.00 - £350.00 per day
customers to build high-quality solutions using Angular and .NET technologies. Key Skills Required Strong commercial experience with Angular Good knowledge of TypeScript, JavaScript, HTML and CSS Experience integrating with REST APIs Solid .NET/ASP.NET Core experience Experience with automated testing tools such as Playwright, Vitest, Cypress or Jest ...

Full Stack Developer (Node/React)

Hiring Organisation
Arc IT Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 per annum
efforts, introducing new ideas and technologies What You'll Bring Proven experience as a Full Stack Engineer or similar role Expertise in Node, React, JavaScript/TypeScript, HTML, CSS, and responsive design principles Strong understanding of Back End technologies and best practices Passion for writing clean, well-tested code Experience ...

Engineering & Science - Senior Software Engineering

Location
Crawley, England, United Kingdom
.NET (C#) and modern frameworks. Strong skills in building APIs and microservices (REST, gRPC) and working with databases (PostgreSQL). Frontend experience with Angular, JavaScript, HTML5, CSS3. Hands‐on experience with Docker, Kubernetes, and CI/CD pipelines (Azure DevOps or similar). Familiarity with open‐source tools, cloud platforms ...

SC Cleared Senior Pega Developer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£506.00 per day
/'25 or later. Pega Constellation experience. Pega DX API experience. Pega GenAI Blueprint experience. Experience delivering applications on Pega Cloud. Knowledge of Java, JavaScript, SQL and related web technologies. Experience with automated testing and Pega testing capabilities. Cloud platform experience, including AWS or Azure. Application modernisation and legacy migration ...

Senior Software Engineer

Hiring Organisation
Elekta
Location
Oxford, Oxfordshire, United Kingdom
Salary
£ 70 K
ideally with .NET (C#) and modern frameworks.Strong skills in building APIs and microservices (REST, gRPC) and working with databases (PostgreSQL).Frontend experience with Angular, JavaScript, HTML5, CSS3.Hands-on experience with Docker, Kubernetes, and CI/CD pipelines (Azure DevOps or similar).Familiarity with open-source tools, cloud platforms, and infrastructure ...

Chief Technology Officer (CTO)

Location
Havant, England, United Kingdom
Strong understanding of modern development practices (CI/CD, automated testing, DevOps, cloud‐native architectures). Broad knowledge of the following technology stacks (e.g., JavaScript/TypeScript, Python, .NET, Java, Low‐Code) and experience overseeing full‐stack development. Experience with cloud platforms (AWS, Azure etc.). Strong understanding of data ...

Software Engineer - Data & AI

Hiring Organisation
McLaren Group
Location
Woking, Surrey, United Kingdom
Salary
£ 80 K
flag scope risk early. What You'll Bring Python (FastAPI), Node.js, REST APIs.SQL and PostgreSQL.Redis/Valkey for session and WebSocket coordination at scale.Strong JavaScript/TypeScript, HTML5, CSSReact (or equivalent), component architecture, state management.Responsive design, web performance (Core Web Vitals: LCP/INP/CLS).Git-based workflows ...

Senior Software Engineer

Hiring Organisation
Lynx Recruitment Ltd
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £105,000 per annum
delivery. What We're Looking For 5+ years' commercial software engineering experience. Strong experience developing applications using C#/.NET . Experience with React , JavaScript and TypeScript. Strong understanding of cloud-native application development on Microsoft Azure . Experience with Azure services such as: App Service, Azure Functions, Azure Kubernetes ...

.NET Developer

Hiring Organisation
Noir
Location
Chichester, West Sussex, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £70,000 per annum
application development (.NET Core, C#) or winforms/WPF (C#) development. Our client will provide you with training into: .NET 10.0, WPF, MVVM, Prism, JavaScript, React, Angular 21, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, ASP.NET Core Web API, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and Azure SQL. ...

Senior Ruby on Rails Developer

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 Java Developer

Hiring Organisation
Halian Technology Limited
Location
Bracknell, Berkshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
standards Key Skills & Experience Strong commercial experience in Java Proven experience developing microservices architectures Solid experience with SQL/relational databases Frontend experience with JavaScript Experience with CI/CD pipelines and DevOps practices Strong understanding of software engineering principles and best practices Experience working in Agile environments Desirable Experience ...

DevOps Engineer - SC Clear

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£500.00 - £550.00 per day
Platform Technologies AWS SageMaker Python scripting and automation Container orchestration platforms Infrastructure security and hardening Cloud networking and connectivity Application Support Knowledge C# .NET JavaScript React REST APIs Microservices architecture COTS Product Experience Supporting Commercial Off-The-Shelf products within secure environments Troubleshooting intelligence, analytical or partner-provided systems Exposure ...

Software Developer in Test - C3

Hiring Organisation
Scale Factory
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Skills & Experience: Eligibility for Security Clearance Experience in Agile environments (e.g., SCRUM, Kanban) A technical development background with coding skills in Java, C#, TypeScript, JavaScript, or similar Expertise in automation testing, with hands-on experience using tools like Playwright, Selenium, Cypress, or RestAssured Knowledge of integration testing and automation frameworks ...

Lead Software Developer In Test - Lead Consultant

Hiring Organisation
Scale Factory
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
leadership in QA/testing roles, with experience guiding teams and managing delivery in Agile environments (SCRUM, Kanban) Strong programming skills in Java, C#, JavaScript/TypeScript , or similar Deep expertise in test automation frameworks such as Selenium, Playwright, Cypress, or RestAssured Experience with integration testing, test strategy , and test ...

Senior Frontend Developer

Location
Bracknell, England, United Kingdom
technical stakeholders Proactively identifies risks, improvements, and opportunities Core skills Strong commercial experience with React and TypeScript in a production environment Strong understanding of JavaScript, HTML5, CSS/SCSS, responsive design, and browser behaviour Experience designing and building maintainable frontend applications at scale Experience integrating frontend applications with RESTful APIs ...

Forward Deployed Engineer (Java, Typescript & Azure)

Hiring Organisation
Legal and General
Location
Hove, East Sussex, United Kingdom
Salary
£ 80 K
technical excellenceContributing to architectural decisions, reducing technical debt and improving platform sustainabilityWho we're looking for:Strong commercial experience developing software using Java and JavaScript/TypeScriptExperience building and supporting RESTful microservices in Spring Boot, Node.js or similar frameworksSolid understanding of cloud technologies, ideally Azure, alongside infrastructure and containerisation toolsExperience ...

Senior C#/.NET Software Developer

Location
Godalming, England, United Kingdom
independently and in a team environment. Strong attention to detail and dedication to delivering high-quality work. Experience with front-end technologies (HTML, CSS, JavaScript). Experience with version control systems (e.g., Git is preferred). Hold current SC-level security clearance (preferable). Be able to gain SC-level ...

Java Developer

Hiring Organisation
Halian Technology Limited
Location
Bracknell, Berkshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
standards Key Skills & Experience Strong commercial experience in Java Proven experience developing microservices architectures Solid experience with SQL/relational databases Frontend experience with JavaScript Experience with CI/CD pipelines and DevOps practices Strong understanding of software engineering principles and best practices Experience working in Agile environments Desirable Experience ...