1 to 25 of 213 JavaScript Jobs in London

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 ...

Full Stack Software Engineer

Hiring Organisation
Brio Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 550 Daily
processes Ensure solutions meet security, performance and compliance standards Essential Skills & Experience Strong commercial experience with: C#/.NET Core/.NET 6+ Vue.js JavaScript/TypeScript REST API development and integration SQL Server and relational databases Hands-on experience with Microsoft Azure, including services such as: App Services Azure ...

Full Stack Software Engineer

Hiring Organisation
Brio Digital
Location
London, Baker Street, United Kingdom
Employment Type
Contract
Contract Rate
£550/day
processes Ensure solutions meet security, performance and compliance standards Essential Skills & Experience Strong commercial experience with: C#/.NET Core/.NET 6+ Vue.js JavaScript/TypeScript REST API development and integration SQL Server and relational databases Hands-on experience with Microsoft Azure, including services such as: App Services Azure ...

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 ...

Full Stack Developer

Hiring Organisation
Sanderson Recruitment Plc
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 55,000 - 65,000 Annual
full-stack development. Strong experience with React and modern Front End architecture. Solid Back End development experience with Node.js . Excellent TypeScript and JavaScript skills. Experience designing and consuming REST APIs. Strong understanding of state management solutions such as Redux Toolkit, Zustand, or React Query. Experience with unit, integration ...

Technical Lead/Engineer Lead - London

Hiring Organisation
Evolve Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£71,000 - £113,000 per annum
ever the same. Tech stack required ideally: 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 ...

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 Vice President, Product Manager — Technical & AI-Enabled - Investor Services

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
driving products from concept to client adoption.* Genuine technical literacy — ability to read and write code in at least one of Java, Python, or JavaScript/TypeScript. Practical understanding of APIs, data models, microservices architecture, and CI/CD pipelines.* Strong understanding of AI/ML and the current ...

Java Software Engineer

Hiring Organisation
Sanderson Recruitment
Location
South West London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £600 per day + Inside IR-35
development Git and version control Experience with relational and/or NoSQL databases Nice to have Exposure to Node.js and TypeScript Experience working with JavaScript-based frontends Azure DevOps or GitHub Actions Docker and Kubernetes Microservices architecture Messaging or event-driven systems Reasonable Adjustments: Respect and equality are core values ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 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. ...

.NET Developer - Stansted

Hiring Organisation
Noir
Location
London Stansted Airport, Stansted, Essex, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £80,000 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, Azure Cosmos DB, Vue.js, TypeScript, Azure, AWS, ASP.NET Core Web API, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban ...

.NET Developer, CMS, Sitecore, EpiServer, Umbraco

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £75,000 per annum
such as Sitecore, Optimizely, Umbraco, Alterian, Immediacy, Ektron, Kentico, Sitefinity or dotnetnuke. Our client can provide you with industry recognised training in: .NET 10.0, 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 MongoDB. This ...

Software Architect

Hiring Organisation
RX Global
Location
Greater London, United Kingdom
Employment Type
Full Time
microservices, event-driven), with experience in system design and modelling (e.g., UML, C4) Proficient in one or more languages such as C#, Python, or JavaScript/TypeScript Hands-on experience with AWS (and/or Azure, GCP), focusing on scalability, resilience, and cost efficiency Familiar with DevOps & CI/ ...

Senior Software Engineer

Hiring Organisation
Lynx Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£95,000 - £115,000 per annum
Bring Strong hands-on software engineering experience with .NET/C# and Microsoft Azure Ability to work across multiple technologies and frameworks, including React, JavaScript and TypeScript Experience building secure, scalable, event-driven and distributed systems Knowledge of CI/CD, DevOps practices, and Infrastructure as Code Excellent stakeholder ...

Full Stack Developer (.NET)

Hiring Organisation
DGH Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
team Required Skills & Experience - Strong experience building enterprise and web-based applications - Proficiency in C#, .NET/ASP.NET - Front-end skills including HTML5, CSS3, JavaScript - Experience with REST APIs, JSON - Familiarity with Git and modern development tools (e.g. Visual Studio) Desirable Skills - .NET Core/.NET 5+ - Angular, Blazor ...

Senior Full Stack Developer (React & C#.NET)

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
collaborative environment and are eager to make an impact, we want to hear from you! Technical Skills Front-end: Strong proficiency in React.js, JavaScript/TypeScript, Redux/RTK, and modern UI patterns, develop framework is essential - More to React JS and Java script Back-end: Expertise in C# .NET … RESTful APIs with a focus on scalability and resilience. Create UI Components: Craft responsive and modular UI components using React JS and modern JavaScript/TypeScript patterns. Collaboration: Work closely with business stakeholders and domain experts in Risk, Regulatory Reporting, and Finance. Power BI Expertise: utilise your knowledge of Power ...

Systems Architect

Hiring Organisation
Harvey Nash
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £130,000 per annum
senior stakeholders. Key Skills: Enterprise & Solution Architecture AWS/Cloud-Native Platforms Microservices & APIs DevOps, CI/CD & Infrastructure as Code Java, C#, TypeScript, JavaScript, or C++ Financial Services, Capital Markets, Trading Platforms, or Front Office systems experience Desirable: Kubernetes, Docker, and modern distributed architectures You'll play ...

Software Engineering Specialist

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£605/day
based environments Strong focus on automation and continuous improvement Good collaboration and problem-solving skills Technical Experience (some of): Programming/scripting (Python, Java, JavaScript, etc.) CI/CD tools (GitLab, Jenkins) IaC (Terraform, Ansible) Containers (Docker, Kubernetes) Cloud (AWS, Azure, GCP) Observability (Prometheus, Grafana, ELK) Git/source control ...

Microsoft Dynamics 365 and Power Platform Specialist

Hiring Organisation
Emporia Consulting Group Limited
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
environment. Demonstrate strong experience working with Microsoft Dataverse, including data modelling, security roles, relationships, and solution configuration. Develop and customise solutions using C# and JavaScript, extending Dynamics 365 and Power Platform capabilities where required. Use HTML and CSS to support user interface customisation and styling. Work with Git code repositories ...

Senior Full Stack Software Developer

Hiring Organisation
Corpay
Location
Central London, London, United Kingdom
Employment Type
Permanent
equivalent experience. Experience: 8+ years of professional software engineering experience. Required Experience: C# and .NET development across web and/or desktop applications. JavaScript or TypeScript. SQL Server, relational database design, stored procedures, and T-SQL. HTTP APIs and service-oriented or distributed systems. Message queues, service buses, asynchronous processing ...

Microsoft Power Platform Developer (Copilot Studio Experience)

Hiring Organisation
Crowe UK
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
pipelines (Azure DevOps or GitHub) Source control Ability to write and optimise expressions, formulas, and logic within Power Platform tools Basic knowledge of: JavaScript/TypeScript (for extensions) JSON and API integrations Understanding of: Generative AI grounding and data sources Prompt design and conversation design best practices Managing fallback, escalation ...

Senior Software Engineer

Hiring Organisation
Elsevier
Location
Greater London, United Kingdom
Employment Type
Full Time
Services (AWS) - Strong experience using GitHub Actions within a CI/CD pipeline - Solid Python knowledge - Experience with front-end technologies such as JavaScript and Node - Experience working with Web Application Firewall (WAF) technologies and Cloudflare features - Solid working experience with Git and SQL - Knowledge of Terraform and experience working ...

Senior/Staff Software Engineer, Backend

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
stable as we grow. Security, compliance, and permissions models that protect our customers and meet enterprise-grade standards. Tech Stack includes Node.js (TypeScript & JavaScript), Dart/Flutter, C++, MySQL (Aurora), Redis, OpenSearch, AWS (Fargate, Lambda, CloudWatch), Docker, Terraform, GitHub Actions What you will bring 8+ years of professional software engineering ...

SENIOR SOFTWARE DEVELOPER – EDINBURGH OR LONDON

Hiring Organisation
Max Fordham LLP
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £60,000 per annum
below are the technology stacks that Max Fordham use. The successful candidate will be expected to work with the following core technologies: Programming: Python, JavaScript, TypeScript, SQL, C#, C++ Frameworks & Tools: FastAPI, Jupyter, JupyterHub, Voila, Power BI, GitHub, Vue, Nuxt AEC Platforms & Standards: Revit, Revit API, pyRevit, Rhino, Grasshopper ...

Principal Artificial Intelligence (AI) Platform Engineer/Architect

Hiring Organisation
WTW
Location
Greater London, United Kingdom
Employment Type
Full Time
model and tooling landscape Azure/Microsoft ecosystem experience advantageous but not mandated Technical Skills Proficiency in a range of languages, including Python, C#, JavaScript, or TypeScript Experience with modern development practices (CI/CD, testing frameworks, containerization) Extensive experience with cloud infrastructure (AWS, Azure, or GCP) and managed services ...