1 to 25 of 88 Permanent JavaScript Jobs in Central London

security Required Skills & Experience: Extensive experience as a Full Stack Engineer with a strong track record in senior or principal-level roles Expertise in JavaScript/TypeScript and modern frontend frameworks (e.g., React, Angular, or Vue) Strong backend development experience (e.g., Node.js, Java, Python, or Go) Proven experience designing ...

architecture decisions and technical strategy Support CI/CD pipelines and cloud infrastructure Mentor developers and promote engineering best practices Tech Stack: Frontend: TypeScript, JavaScript, (React/Angular), HTML5, CSS3 Backend: Python REST APIs Data: MySQL, PostgreSQL, Redis Cloud & DevOps: AWS, Docker, CI/CD, Kubernetes (nice to have) Architecture ...

Serverless Service, including Lambda, API Gateway, DynamoDB, S3, SNS, SQS, EventBridge, Kinesis, Node.js, YAML Frontend : React/Next.js, React Native Programming Languages : TypeScript; JavaScript, Python Infrastructure : Terraform, GitHub CI/CD pipelines Responsibilities Provide technical leadership and mentorship to your team. As a Senior Full-stack Software Engineer, you will ...

Core Languages: Expert in C#/.NET paired with a strong proficiency in Python. Full-Stack Visualization: Hands-on experience with React, TypeScript, and JavaScript for front-end development. Domain Depth: A solid understanding of derivative products and risk sensitivities (Greeks). Cloud & DevOps: Experience with AWS, Terraform (Infrastructure ...

consulting environment, working closely with architects, designers, product teams and client stakeholders. Key Responsibilities Design and build applications using ASP.NET Core, C# and modern JavaScript frameworks Develop responsive, accessible front-end interfaces using React, Angular or Blazor/Razor Contribute to cloud-native architectures on AWS or Azure Implement modern ...

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 ...

manage multiple projects and priorities in a fast-paced environment Technical Skills Power Platform (Power Apps, Power Automate, Power Pages, Power BI) Python, JavaScript, TypeScript, Angular or React ASP.NET Core, Entity Framework, REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL databases, vector databases FastAPI and AI service integrations (OpenAI ...

Databricks development and deployment. Optimise Databricks workloads for performance and cost. Need to program using the languages such as SQL, Python, R, YAML and JavaScript Data Integration: Integrate data from various sources, including relational databases, APIs, and streaming data sources. Implement data integration patterns and best practices. Work with ...

security clearance is essential. Proven experience as a backend or software engineer delivering production systems. Strong coding ability in Java, Python and/or JavaScript/TypeScript. Solid understanding of backend engineering fundamentals, design patterns and API design. Experience working in Agile teams (e.g. Scrum, Kanban). Strong communication skills ...

security and risk elements Managing outsourced IT function – knowledge IT security Our Tech Stack: Languages : C# (.NET), Python Frontend : Blazor (server-side), Radzen components, Javascript Backend : Azure Functions (C# and Python), queue-driven microservices AI/ML : Azure OpenAI, Azure Document Intelligence, embedding-based search, Langraph, Hugging Face, experience interacting ...

agile team building enterprise‐grade web applications or backend services Java development with Spring Boot at the back Front‐end development using modern JavaScript frameworks (e.g., React, Vue) Experience with cloud platforms such as AWS or Azure Containerisation and orchestration using Docker and Kubernetes Infrastructure as Code (Terraform, Ansible ...

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 ...

Containers & CI/CD (Docker) 📦 Datastores: SQL Server, MongoDB, Redis/Memcached Distributed systems & messaging Git source control Nice to have: C++, Python, Java, JavaScript, Entity Framework, TDD, cloud modernisation experience ➕ Working Environment 🏦 Front-office, desk-aligned engineering role Direct interaction with traders, analytics, and risk teams High-pressure, technically ...

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 ...

remotely Collaborate with product and engineering teams to improve deployments Support rollout projects and large-scale implementations Requirements: Strong software engineering skills (Python, JavaScript, or similar) Experience with cloud platforms (AWS, Azure, GCP) Knowledge of APIs, system integration, and microservices Client-facing experience or delivery-focused roles Strong problem-solving ...

trust, high-sensitivity environments Contribute to systems architecture, testing, integration, and deployment Ideal Background: Strong experience in modern programming languages ( Python, Java, Typescript, JavaScript) Familiarity with secure coding principles and systems engineering Experience with cloud platforms (AWS, Azure, GCP) and DevOps tooling is a bonus Comfortable working in agile, iterative ...

stakeholders, supporting informed decision-making Key Skills & Experience Strong background in software engineering, either as a Senior Engineer or Technical Lead Experience with JavaScript (Node.js/TypeScript) or Python-based environments Proven experience leading teams through end-to-end technical delivery Experience working directly with clients or stakeholders ...

migrating SharePoint 2016 on-premise environments to SharePoint SE and/or SharePoint Online. Proven expertise in SharePoint Framework (SPFx) development. Proficiency in TypeScript, JavaScript, React, HTML5, CSS3, and modern front-end development practices. Strong experience integrating SharePoint solutions using RESTful APIs and Microsoft Graph. Solid experience with C# ...

platform features and technologies from the ground up. Experience needed as a Back End Developer: 3+ years of Node.js development Type Script/Strong JavaScript skills React REST API development ...

DynamoDB, CloudFront, SES, API Gateway, Step Functions, EventBridge, and SAM/CloudFormation • Strong SQL programming expertise • Experience with NestJS and modern front-end development (JavaScript, HTML, CSS) • Familiarity with GitLab (or similar) and CI/CD workflows • Proven track record optimizing data storage, retrieval, performance, and cost efficiency • Experience integrating ...

Azure DevOps 🧠 What You Bring Deep expertise in ASP.NET Core, C#, and Azure Services Advanced SQL Server knowledge Experience building modern web applications using JavaScript frameworks Strong understanding of cloud architecture and DevOps best practices This is high-scale, high-visibility engineering with meaningful global impact. 🌟 What ...

model versioning, dataset management, verification workflows, and result/metric aggregations. Requirements: The technical requirements for the role are: Must have Strong 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. Solid ...

cross-device compatibility Required Skills & Experience 3+ years of experience in frontend development Strong experience in: React.js (Hooks, Redux) Angular (v8+) Proficiency in JavaScript (ES6+) , HTML5, CSS3 Experience with REST APIs integration Familiarity with version control tools like Git Knowledge of responsive design and performance optimization ...

migrating SharePoint 2016 on-premise environments to SharePoint SE and/or SharePoint Online. - Proven expertise in SharePoint Framework (SPFx) development. - Proficiency in TypeScript, JavaScript, React, HTML5, CSS3, and modern front-end development practices. - Strong experience integrating SharePoint solutions using RESTful APIs and Microsoft Graph. - Solid experience with C# ...