1 to 25 of 928 Permanent JavaScript Jobs in the UK

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
continuous improvement. Your responsibilities Design, build and evolve scalable back-end services using C# and .NET Core, alongside developing front-end features with modern JavaScript frameworks to enhance user experience. Design and implement RESTful APIs, ensuring high standards of performance, reliability and security. Build, deploy and operate services ...

Senior Software Engineer

Hiring Organisation
Addition
Location
Farnborough, Hampshire, England, United Kingdom
Employment Type
Full-Time
Salary
£85,000 per annum
current with emerging technologies and continuously improve development approaches. Main Skills Needed: Commercial software engineering experience across modern full-stack environments. Strong knowledge of JavaScript/TypeScript and React development. Backend development expertise with Java, Python, or Go. Experience working with AWS and/or Azure cloud services. Solid understanding ...

Senior Developer

Hiring Organisation
Reed.co.uk
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 per annum
software development experience, with at least 3 years in a senior or technical lead role. Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development ...

Principal Software Engineer (UI) TLNT1 NI

Hiring Organisation
TP ICAP Group Services Ltd
Location
Belfast, UK
lifecycle. Experience/Competences Essential Proven experience as a senior or principal UI engineer within complex, high-performance systems. Strong expertise in React, TypeScript, JavaScript, and modern UI development practices. Experience with UI component libraries such as Material UI or Ant Design. Proficiency in HTML5, CSS, and responsive design principles. ...

Senior Engineer (Full Stack) TLNT1 NI

Hiring Organisation
TP ICAP Group Services Ltd
Location
Belfast, UK
Engineer in Typescript in a professional environment. Front-end skills Proficient in HTML5, CSS3, and Typescript Proficient in React, Redux, ReactQuery Experience with modern JavaScript frameworks - React Knowledge of version control systems (Git) Understanding of cross-browser compatibility Familiarity with RESTful APIs, GraphQL and Websockets Experience with CSS pre-processors ...

Technical Lead TLNT1 NI

Hiring Organisation
PA Consulting
Location
Belfast, UK
right tech for the right task, you can expect to work with the following technologies to ensure scalable, high-performance applications: Programming Languages: JavaScript/TypeScript, Java, C# Frameworks: Vue/Angular/React/Node/Next, Spring/Spring Boot, .NET/ASP.NET Cloud platforms: AWS, GCP, Azure ...

Graduate Software Developer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Nottingham, Nottinghamshire, East Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£30,000
Engineering, or a related subject (2:1 or above preferred) Experience with C# .NET through university projects, placements, internships, or personal projects Knowledge of JavaScript/TypeScript, HTML, and CSS Strong problem-solving skills and a passion for software development Excellent communication skills and willingness to learn Desirables Experience with ...

Senior Full-stack Engineer TLNT1 NI

Hiring Organisation
Ocho
Location
Belfast, UK
confidential conversation about this opportunity, please reach out to Nick Napier directly on LinkedIn or submit your CV via the link below. Skills: typescript javascript React node.js AWS TLNT1 ...

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Belfast, Northern Ireland, United Kingdom
Strong collaboration and communication skills, with the ability to work effectively across technical and non-technical stakeholders. Desirable Experience building web front ends using JavaScript and modern frameworks such as React, Vue, or Blazor. Experience with containerisation technologies such as Docker or Kubernetes. Understanding of SOLID principles and software design ...

Director, Engineering Excellence (AI Platforms)

Hiring Organisation
Jobleads-UK
Location
Belfast, Northern Ireland, United Kingdom
developer experience.**Required Experience & Skills****Technical Expertise*** Engineering Lead or Software Engineering Manager experience delivering large‐scale systems.* Proficiency in **Python, Java, TypeScript/JavaScript, or Go**.* Experience deploying **LLM/GenAI systems** to production with a focus on evaluation, safety, monitoring.* Strong background in distributed systems, microservices ...

Software Engineer (AI+Fullstack)

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£55,000
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 ...

Software Engineer (AI+Fullstack)

Hiring Organisation
83zero Limited
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Salary
£55,000
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 ...

Mid-Level Full Stack Developer

Hiring Organisation
Orcha
Location
Warrington, Cheshire, North West, United Kingdom
Employment Type
Permanent
Salary
£45,000
years' experience in software development, with substantial commercial full stack experience Strong experience building user interfaces using modern web technologies (e.g. HTML, CSS, JavaScript, React or similar) Strong experience with backend development, APIs, and server-side logic (e.g. .NET, Node.js or similar) A track record of delivering features independently ...

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
from the roadmap. Solve ambiguous problems with scalable solutions. Skills Knowledge and Expertise Essential: Strong expertise in Python web development frameworks (e.g., Django) and JavaScript/TypeScript, with experience working in cloud environments such as AWS, Azure, or GCP. Skilled in applying software technical design principles to build scalable, secure ...

Senior Software Engineer - £day rate (outside IR35)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
delivery progress and highlighting potential technical blockers Upskilling and embedding modern software practices in client teams where necessary Your Experience Frontend web technologies (e.g. Javascript, Typescript, CSS, HTML, etc.) Frontend web frameworks (e.g. React, VueJS, etc.) Backend technologies (e.g. Node.js, Kotlin) Relational and Non-relational databases (e.g. ElasticSearch, Redis, PostgreSQL ...

Senior Software Engineer (2 vacancies)

Hiring Organisation
Jobleads-UK
Location
Park Central, England, United Kingdom
from the roadmap. Solve ambiguous problems with scalable solutions. Skills Knowledge and Expertise Essential: Strong expertise in Python web development frameworks (e.g., Django) and JavaScript/TypeScript, with experience working in cloud environments such as AWS, Azure, or GCP. Skilled in applying software technical design principles to build scalable, secure ...

Senior Software Engineer (Python)

Hiring Organisation
Jobleads-UK
Location
Exeter, England, United Kingdom
team, preferably using “scrum” Nice to Haves A Master’s‐level qualification in a STEM field. Experience with front‐end development: HTML; CSS; React; Javascript/Typescript. Experience with UI/UX design principles. Experience with PyTorch or other deep‐learning libraries. An understanding of Bayesian statistics. Location On site. ...

Full Stack Developer

Hiring Organisation
Jackson Hogg
Location
Houghton Le Spring, Tyne and Wear, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
with Entity Framework Core for object-relational mapping and implementing user interfaces using front-end frameworks that incorporate technologies such as React, HTML, CSS, JavaScript, and TypeScript. You will be expected to write high-quality, secure, and efficient code that adheres to best practices. Key Competencies: Expert knowledge of Microsoft ...

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 ...

C# Senior Software Developer

Hiring Organisation
Adria Solutions Ltd
Location
Preston, Lancashire, United Kingdom
Employment Type
Permanent
Salary
£50000 - £75000/annum
Dependency Injection Entity Framework Core (DbContext, DbSet, OnModelCreating, LINQ) and ADO.NET/Raw SQL experience MS SQL Server or MySQL database experience HTML5, CSS3, JavaScript REST API expertise and integration (HttpClient, RestSharp, JSON serialization/deserialization, CORS, HTTPS, API security) Git version control and CI/CD workflows (Azure DevOps ...

Software Engineer

Hiring Organisation
Sanderson Government and Defence
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
documentation and contribute to knowledge sharing. Essential Skills & Experience Strong commercial experience with Java and Python . Front-end engineering experience using React and JavaScript Solid hands-on experience with MongoDB including data modelling and performance tuning. Proficient with CI/CD, Git, automated testing, and modern engineering workflows. Experience ...

Engineering Technical Lead

Hiring Organisation
EVOLVE IN RECRUITMENT LTD
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
right tech for the right task, you can expect to work with the following technologies to ensure scalable, high-performance applications: Programming Languages: JavaScript/TypeScript, Java, C# Frameworks: Vue/Angular/React/Node/Next, Spring/Spring Boot, .NET/ASP.NET Cloud platforms: AWS, GCP, Azure ...

Senior Software Engineer (DevOps)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
experience with: Infrastructure as Code (Terraform, Ansible or similar) CI/CD pipelines and DevOps tooling C# (.NET 8+) and/or Java (Spring) JavaScript using a modern framework (React, Angular or similar) Bash and PowerShell AWS, ideally including Amazon Connect Containerisation and orchestration (Docker, Kubernetes) Linux environments Nice ...

Senior Software Engineer

Hiring Organisation
Zaizi LTD
Location
West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
testing [cucumber, nightwatch]) Nice to have skills: AWS Knowledge of Open Source BPMN workflow engines (Camunda, Activiti or Flowable) Experience on a front-end javascript framework such as react, angular or vue.js RedHat OpenShift for container orchestration Knowledge of NCSCs 14 cloud security principles. SC Clearance: Zaizi works with ...

Senior Software Engineer (Data - Advertising Engineering)

Hiring Organisation
Jobleads-UK
Location
Manchester, England, United Kingdom
Spark. Expertise in data modeling, schema design, and data visualization tools. Experience working in GCP and/or AWS is a plus. Experience with JavaScript, Node.js and React is nice to have. Experience deploying services on Kubernetes is a plus. Knowledge of CI/CD pipelines, DevOps practices, and infrastructure ...