1 to 25 of 99 Permanent JavaScript Jobs in Central London

capability and commercial goals. Drive innovation: pilot emerging technologies (AI, automation, data services) that improve efficiency and insight. Your Technical Toolkit Frontend HTML5, CSS3, JavaScript (ES6+), TypeScript React.js (preferred), Angular, or Vue.js Responsive design (Bootstrap, Tailwind), state management (Redux, Context API) Front-end testing (Jest, React Testing Library, Cypress) Backend ...

Agile and DevOps practices, with a focus on continuous integration and delivery. Some proficiency in one or more programming languages (e.g., .NET, Python, JavaScript) and experience with software architecture patterns. Experience with cloud platforms (e.g. Azure, AWS, GCP) and infrastructure as code (Terraform). Familiarity with CI/CD pipelines ...

ability to take initiative and drive projects forward Proficiency in full-stack development using any object oriented language (we use .NET) and any modern javascript framework (we use React) Experience working with databases (SQL and NoSQL), APIs, and web technologies. Experience with cloud platforms (AWS, GCP, Azure) Solid understanding ...

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. ...

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 ...

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 ...

design is a plus Experience with Unit Testing is a plus Current tech stack C# .NET MVC Entity Framework (Code-First) MSSQL HTML & CSS JavaScript Git Azure Infrastructure Redis Third-Party APIs Benefits Part of a fast-growing company in the fintech space. Remote working. Additional learning resources. 25 days ...

financial regulations such as GDPR, SOX Experience with cloud-based QA practices Exposure to AI-assisted testing tools Knowledge of web technologies (HTML, CSS, JavaScript) and browser automation tools (Selenium) Formal QA certification (ISTQB or equivalent) Experience with Microsoft Fabric (advantageous) What the Client Is Looking For A hands ...

schema design, domain-driven architecture, and concurrency. Proven experience developing production-grade RESTful APIs ideally with an API-first approach. Some proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Familiarity with ...

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 ...

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 ...

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 ...

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 ...

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 ...

Senior Software Engineer Key Technologies: C#, .NET, React, JavaScript, Typescript, AWS, Docker City of London, United Kingdom Perm Role: £80,000 - £120,000 Harrington Starr has partnered with a Global Financial Services Vendor and they are looking for a Senior C#, .NET Software Engineer to join their growing team! This ...

Scrum/Kanban/Lean) Solving complex technical challenges using sound engineering principles What we're looking for Strong programming experience in Python, Java, JavaScript or .NET Proven experience delivering production-grade systems Solid use of Git-based version control Experience with CI/CD tooling (e.g. Jenkins, Bamboo, TeamCity ...

tools such as CoPilot or Cursor a collaborator and accelerator of development. Nice to Have: Experience in web or Android development (e.g. Javascript, Typescript, React.js, Kotlin) Worked with real-time data collection and/or processing Worked in an IoT or Edge-oriented architectures Experience or knowledge in retail ...

sharing. Iterate post-launch using real-world data and user feedback. What We’re Looking For Core Skills Strong foundations in modern Frontend engineering: JavaScript/TypeScript , React , component patterns, state management, performance and accessibility. Ability to translate product ideas and design assets into production-quality experiences. A product-oriented ...

functional frontend code Contribute to API and broader system design & documentation Essential Qualifications: Strong understanding of UX principles and web design fundamentals Expert in Javascript, Typescript, HTML, and CSS Extensive experience with modern web frameworks and patterns (eg. React, Next.js, Tailwind) Experience with real-time and bi-directional communication protocols ...

development experience including Java backend (Spring Boot) You have experience with relational databases and SQL query writing You have some front end experience with JavaScript, Angular or React You have a strong understanding of REST APIs and real-time systems You're comfortable working with legacy Ruby You have ...

will contribute to the development of our new web application, powered by a Headless CMS, using the latest frontend technologies. Working with a modern JavaScript stack, your primary focus will be on coding, testing, and enhancing the functionality of Travelex's and partner applications. Being part of the Online team ...

designs. Contribute to code reviews, testing, and engineering best practices. Mentor junior engineers and help drive standards across the team. Skills & Experience: Strong React.js, JavaScript/TypeScript, HTML5, and CSS3/SASS skills. Experience building large-scale, enterprise-grade applications. Knowledge of state management frameworks (Redux, Context API, etc.). ...

will... • Lead and grow a 6‐person onshore/offshore engineering team • Set technical strategy and evolve a scalable, secure architecture. • Familia with Typescript, JavaScript & React full stack engineering environments. • Drive delivery quality with improvements across CI/CD, DevOps, testing and reviews • Partner with the CEO and Product ...

decision-maker who balances speed with robustness Bonus: exposure to LLM, Transformers or financial/market data products Tech We Work With Python, React, JavaScript AWS, Docker, Pulumi, Postgres Agile Transformer building, LLMs, time-series models Real-time data pipelines & scalable APIs Why Join Permutable? A wide network of established ...

Exposure to CEP engines (Esper) or other live stream aggregation technologies. Familiarity with authentication, authorization, and endpoint security. Experience with C#/HTML/JavaScript and AWS/Terraform/CI-CD pipelines. Why Join CMC Markets? Work on high-performance trading systems that have global impact. Collaborate with ...