176 to 200 of 634 JavaScript Jobs in London

Senior Python Software Architect — Cybersecurity & Cloud

Location
Greater London, England, United Kingdom
collaborate with cross-functional teams to deliver scalable, production‐grade solutions. Required: senior/lead/architect level experience with Python, C++, Rust, or JavaScript, strong architecture and system design, and exposure to Docker, CI/CD, Git, and cloud platforms (AWS/Azure/GCP). #J-18808-Ljbffr ...

Microsoft Dynamics Developer - Contract

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £625 per day
configuring Microsoft Dynamics 365 Strong C#/.NET development experience Experience with Microsoft Azure and associated cloud technologies Experience building APIs and system integrations JavaScript/TypeScript experience Experience developing custom Dynamics functionality, plugins and workflows Understanding of CI/CD and modern software engineering practices Comfortable working across both ...

Technical Lead - D365

Hiring Organisation
Cadence Resourcing Limited
Location
London, United Kingdom
Employment Type
Contract
standards, mentor developers and help drive modern engineering and DevOps practices. You'll need strong experience across: - Microsoft Dynamics 365 & Power Platform - C#, .NET, JavaScript/TypeScript & Power Fx - Dynamics plugins, workflows and custom development - Azure & Azure DevOps - CI/CD and deployment automation - APIs, Dataverse & Azure Integration Services - Designing ...

Full Stack Developer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £630/day
Services, Key Vault, Monitor, and general cloud native design. C#, .NET 10, REST API development, and enterprise backend engineering. Frontend development with TypeScript, JavaScript or NHS Digital Design System components. Confident and experienced use of AI development agents and tools in daily workflow. Strong understanding of clinical workflows, interoperability patterns ...

SC Cleared Performance Test Engineer

Location
Greater London, England, United Kingdom
. Strong understanding of Performance Testing methodologies and NFRs . Hands-on experience with Docker and Kubernetes . Strong scripting skills in Python or JavaScript . Excellent analytical, problem-solving, and stakeholder management skills. Desirable Skills Kafka, IBM MQ, ELK Stack, Tableau. GitHub Actions, Jenkins, and Git. Experience embedding performance ...

Technical Lead / Junior Solutions Architect

Location
Greater London, England, United Kingdom
years of experience in technical development and designing scalable solutions* Strong experience in cloud-native development using AWS* Proficiency in web-based development using JavaScript, CSS, and markup languages* Proficiency in web-programming tools such as ASP, .NET, PHP, C#, or Java* Experience with REST-based APIs using JSON ...

Java Architect - Security Check (SC) Clearance

Hiring Organisation
Templeton and Partners
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Docker & Kubernetes REST APIs OAuth2 & JWT Domain-Driven Design (DDD) Performance tuning & security hardening Application modernization and cloud migration Front End exposure to JavaScript and Angular Essential Requirement Applicants must hold current active Security Check (SC) Clearance at the time of application. If you're a highly experienced Java Architect ...

Software Developer

Location
Greater London, England, United Kingdom
experts, and engineers to adjust programming answers for business needs. Make itemized specialized determinations and extend existing programming to fulfil advancing needs. Information on JavaScript SPA systems is ideally Precise. Information on DevOps practices like Coordinated, Robotization, Microservices, CD/CI Framework as a code or potentially compartments and arrangement ...

Software Engineer III - UI - React

Location
Greater London, England, United Kingdom
team culture of diversity, opportunity, inclusion, and respect Required Qualifications, Capabilities, and Skills: Bachelor’s degree Proficient in front-end frameworks such as React, JavaScript, TypeScript, HTML, and CSS Experience building high-performance desktop or web applications Experience with test-driven development, modern source control, and continuous integration Understanding ...

Software Developer Placement Programme – No experience needed

Location
London, United Kingdom
online at your own pace and become job-ready in as little as a few weeks. Our programme includes: Official Training in HTML, CSS, JavaScript, and React.js Official AWS certification Official Microsoft Azure certification [NH1] 30+ hands-on coding projects to build your portfolio Interactive tools including GitHub and real ...

Technical Lead/Associate Architect – PHP / Laravel (LAMP)

Location
Greater London, England, United Kingdom
Testing: Phpunit, unit/integration/API testing, debugging and profiling tools* Template Engines: Working experience with templating engines like Blade, Smarty, Twig* Frontend: JavaScript (ES6+), HTML5, CSS3### Core Responsibilities/Capabilities:* Design, evaluate and recommend technical architectures for ERP modules, integrations and platform evolution.* Stay hands-on: develop critical ...

Senior C# Developer

Hiring Organisation
GCS
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £416/day Inside IR35
development skills Understanding of software design principles and development best practices Experience working within complex enterprise environments Experience working with Azure Desirable Experience with JavaScript Exposure to React Experience contributing to application modernisation programmes Knowledge of Azure cloud technologies Experience within Financial Services, Investment Banking or Capital Markets environments Personal ...

AI Solutions Engineer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Strong experience with the Microsoft AI ecosystem, including: Copilot Studio, Azure AI Foundry and Azure DevOps - Software development experience, ideally using Python. - Knowledge of JavaScript or other development languages would be advantageous. - Strong understanding of: Large Language Models (LLMs), Natural Language Processing (NLP), Machine Learning fundamentals and Prompt engineering. - Experience ...

Senior Manager of Software Engineering

Location
Greater London, England, United Kingdom
Capabilities, and Skills: Experience with Java and Oracle Familiarity with messaging platforms such as RMQ and Kafka Expertise in Kubernetes Proficiency in ReactJS and JavaScript Functional knowledge of FX or Dervis Settlements domain If you’re looking for a place where your skills are valued and your contributions make ...

System Development Engineer, Reliability and Automation Engineering

Location
London, England, United Kingdom
cloud services and infrastructure preferably from AWS: S3, Lambda, RDS, System Manager, API Gateway, AppSync, DynamoDB, CloudWatch, EC2, IAM. - Proficiency in scripting languages (Python, JavaScript, TypeScript) and object-oriented programming languages (Java, C#, C++). - Knowledge of database systems and SQL and infrastructure as code (AWS CDK). - Ability ...

Software Engineer

Location
Greater London, England, United Kingdom
Automated testing experience Source control experience Laravel framework experience Skills Excellent verbal and written communication skills Experience with modern frontend frameworks (e.g., Vue) HTML, JavaScript, CSS (SASS) Experience building REST APIs Familiarity with Docker Go Technical Values Passion: You should be passionate about your work and eager to grow both ...

Front End Software Engineer - ACE

Location
City Of London, England, United Kingdom
performance issues within the application. Your Profile Strong commercial experience developing production applications with React and TypeScript, preferably with Next.js. Excellent knowledge of modern JavaScript/TypeScript, HTML and CSS. Strong understanding of React fundamentals, component architecture, hooks, state management and modern frontend application patterns. Experience designing and building reusable ...

Technology Architect Scala

Location
Greater London, England, United Kingdom
GHCP) Experience in working with an Agile team Preferred Message-oriented-middleware (Kafka, AMQP, MQ, AMPS, etc.) experience Distributed systems experience Web Application development (JavaScript, AngularJS, Bootstrap, etc.) Rest API design and development DDD/CQRS/Event sourced systems experience Relevant industry (banking middle/back office) experience Experience ...

Senior Software Engineer II - FinCrime - Scam Prevention Team

Location
Greater London, England, United Kingdom
languages, including the Spring framework. Experience building and designing scalable web applications that handle large amounts of traffic - ideally using React based frontend applications, Javascript/Typescript.\* System Design & Operation: Proven experience designing and operating CI/CD pipelines, Distributed, and Concurrent Systems.\* Product Ownership: A strong product mindset, accountability ...

Senior Frontend Developer

Hiring Organisation
Rullion Managed Services
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£650/day
handle data flow effectively. Knowledge and Skills: Demonstrated expertise as a Senior Backend Developer. Proven experience in React.js, and TypeScript development. Strong understanding of JavaScript and modern front-end technologies. Experience with state management libraries like Redux, Recoil, or similar. Familiarity with RESTful APIs Experience with version control systems, such ...

Frontend Developer

Location
Greater London, England, United Kingdom
stack development, working at mid level.* Frontend: Strong proficiency in React, including component design, state management and responsive layouts, with solid HTML, CSS and JavaScript (TypeScript preferred).* Backend: Some experience building server-side services with Node.js or a similar language and framework (or willingness to learn).* APIs: Experience ...

Applied AI ML Lead - Machine Learning Engineer - Agentic Commerce

Location
Greater London, England, United Kingdom
graph databases used for retrieval Understanding of LLM fine-tuning and small language model inference Ability to develop full-stack products using modern JavaScript/TypeScript frameworks (e.g., Next.js, Svelte) for agent UIs (AG-UI/NEO UI SDK) Experience working in the financial or payments domain at a large ...

Senior Fullstack Engineer

Location
Greater London, England, United Kingdom
CITO, VP of Engineering, and Product on features, strategy, and roadmap CORE COMPETENCIES Proficient in modern full-stack development: TypeScript, React, Node.js, Python, JavaScript Experience with Google Cloud or other cloud infrastructure: provisioning, scaling, cost management Can design scalable abstractions, distributed systems, and resilient infrastructure Solid grasp of databases ...

Senior Customer Solutions Engineer

Location
City Of London, England, United Kingdom
integration, and creating customer‐facing developer resources such APIs, SDKs and documentation. Experience of Full Stack Web development and Cloud Architecture Demonstrable Experience with JavaScript, NodeJS, Python or equivalent frameworks/languages Excellent interpersonal and communication skills, both verbal and written. Articulate, charismatic, and confident in a customer‐facing role ...

AI Engineering Senior Analyst/Manager

Location
City Of London, England, United Kingdom
found. #LI-EU Skills Hands‐on experience with at least one cloud (AWS/Azure/GCP) Strong programming skills in Python and JavaScript/TypeScript Experience with APIs, microservices, and full stack development Experience with LLM frameworks (LangChain, Langgraph, LlamaIndex) or GenAI use cases Understanding of RAG and vector ...