126 to 150 of 634 JavaScript Jobs in London

Senior Software Engineer

Location
Greater London, England, United Kingdom
department management, ensuring they are knowledgeable in critical aspects of their roles. Requirements Expertise in development languages including but not limited to: Java, JavaScript, Groovy, JSP, HTML, XML, SQL and bash. Knowledge and experience of build tools - Maven and Gradle Knowledge and experience of relational DBMS - Postgresdb Knowledge of using ...

Senior Full Stack Engineer

Location
Greater London, England, United Kingdom
with Python in a web application context. You have some experience with web frameworks like FastAPI, Django or Flask. We use FastAPI. Experience with Javascript/Typescript and a modern JS framework such as React, Angular or Vue.js. We generally use React & NextJS Strong engineering principles & practices: design patterns, testing ...

Senior Software Engineer / Senior AI Engineer

Location
City Of London, England, United Kingdom
SDLC, TDD and code review. Data: Working with relational, columnar and vector stores, grounded in sound data-modelling principles. Languages: Python, Java, TypeScript/JavaScript, SQL and relevant AI SDKs. Communication: Clear written and verbal communication with technical peers and stakeholders. Measurement: Instrumenting solutions to capture usage, productivity and quality ...

Lead Software Engineer

Location
Greater London, England, United Kingdom
Strong core programming skills in either (or both!): Server‐side languages such as C++, Java, Rust or Python Front‐end development in TypeScript or JavaScript, using frameworks such as Angular or React Several years of software engineering experience in industry Some history of managing other engineers A forward‐leaning ...

Senior Sales Engineer

Location
Greater London, England, United Kingdom
hands‐on experience in technical presales, solution engineering, technical consulting, or an application developer role. Technical Fluency: Proficient with modern web technologies (e.g., JavaScript, Python, Node.js), HTML/CSS, REST APIs, and utilising webhooks. AI Expertise: Practical understanding of AI applications, including utilising LLM‐powered features, prompt engineering , and automated ...

Principal Software Engineer / Principal AI Engineer

Location
City Of London, England, United Kingdom
problem, extracting defined spec, and prioritises shipping validated outcomes over perfect solutions, moving pilots to production at pace. Languages: Python, Java, TypeScript/JavaScript, SQL and relevant AI SDKs. Leadership and delivery management: Plans and sequences work, manages scope, dependencies and priorities, removes blockers, and drives delivery to keep innovation ...

Senior Sales Engineer

Location
Greater London, England, United Kingdom
hands-on experience in technical presales, solution engineering, technical consulting, or an application developer role.* ## Technical Fluency: Proficient with modern web technologies (e.g., JavaScript, Python, Node.js), HTML/CSS, REST APIs, and utilising webhooks.* ## AI Expertise: Practical understanding of AI applications, including utilising LLM-powered features, prompt engineering ...

Oracle Cloud Integration Developer

Location
Greater London, England, United Kingdom
based integrations (primarily using Oracle Integration Cloud)User interfaces (primarily using Oracle JET/Visual Builder Cloud Service/APEX or other commonly known JavaScript frameworks)* You will evangelise on the significance and benefits of the PaaS portfolio in which your specialisation resides.* You will be required to work with ...

Principal Software Engineer / Principal AI Engineer

Location
City Of London, England, United Kingdom
problem, extracting defined spec, and prioritises shipping validated outcomes over perfect solutions, moving pilots to production at pace. Languages: Python, Java, TypeScript/JavaScript, SQL and relevant AI SDKs. Leadership and delivery management: Plans and sequences work, manages scope, dependencies and priorities, removes blockers, and drives delivery to keep innovation ...

# Technical Product Owner, DevOps Platform - UK

Location
City Of London, England, United Kingdom
/CD, GitHub Actions Cloud platforms: AWS, Google Cloud Containers and orchestration: Docker, Kubernetes Infrastructure as code: Terraform, CloudFormation, Ansible Scripting: Python, Bash, JavaScript Monitoring and observability: Datadog, AppDynamics, CloudWatch, Splunk Operating systems: Linux, UNIX Working knowledge of security practice for cloud infrastructure and delivery pipelines, including access control, secrets ...

Ruby on Rails Developer

Location
Greater London, England, United Kingdom
data modelling, including migrations from legacy data sources Building and consuming RESTful APIs and integrations Server-rendered front ends with HTML, CSS and JavaScript (Hotwire/Stimulus a plus) Accessible design to WCAG 2.2 AA; GOV.UK Design System experience highly desirable CI/CD, Git and containerised deployments (Docker, Kubernetes ...

Specialist Software Engineer (Python)

Location
Greater London, England, United Kingdom
impact technology. What We're Looking For Senior, Lead, Staff, Principal, or Architect-level software engineering experience. Strong expertise in Python, C++, Rust, or JavaScript . Proven experience with software architecture and system design . Experience with Docker, CI/CD pipelines, Git, and cloud platforms (AWS, Azure ...

Senior Full Stack UI Engineer

Location
Greater London, England, United Kingdom
SKILLS Must have 8+ years of frontend or full stack development experience Experience working in Agile teams Frontend/UI Development: Proficient in React, JavaScript/TypeScript, HTML5, and CSS Understanding of RESTful API integration and asynchronous data handling Familiarity with state management concepts (e.g., Redux or similar) Experience building ...

Full Stack Developer – Equities Trading Technology

Location
Greater London, England, United Kingdom
Python Experience with SQL and relational databases, ideally PostgreSQL Experience building web applications, APIs, or distributed systems Familiarity with Angular, React, or modern JavaScript and TypeScript development Strong ownership mindset, with the ability to take work from technical design through production delivery Clear communication skills and experience collaborating with Product ...

Senior Full Stack Developer

Location
Greater London, England, United Kingdom
Keylane You contribute throughout the development lifecycle, from prototyping and developing new features to testing and deployment. On the front end, you work with JavaScript, React, Redux Saga, HTML and CSS. On the back end, you use Java/J2EE, Maven, jOOQ and MySQL, with Docker and AWS forming part ...

SC Cleared - Lead Intelligent Automation & Low-Code Developer - Contract

Location
Greater London, England, United Kingdom
Power Platform and/or Copilot. Previous RPA experience ( UiPath, Power Automate Desktop, Blue Prism, Automation Anywhere ). Knowledge of coding languages (e.g., .NET, JavaScript, Python ) to extend low-code solutions Experience integrating Power Platform with Azure AI services or other enterprise systems Let’s Build the Future Together ...

Web Application Support Engineer

Location
City Of London, England, United Kingdom
expertise is required Proven experience in web application support, ideally within the financial or corporate settings. Strong understanding of web technologies, including HTML, CSS, JavaScript, C# and relevant frameworks. Familiarity with server environments and database management systems. Excellent problem-solving skills and the ability to work under pressure. Strong communication ...

Software Engineer

Location
City Of London, England, United Kingdom
experience in one or more of the following technologies but who is also open minded about learning new languages and technologies. Java, Python, JavaScript, TypeScript Angular, React, Vue Docker, Kubernetes AWS, Azure MERN, Elasticsearch, Neo4J Salary and Benefits A salary of £40-85k with an exciting array of projects ...

Senior Lead Software Engineer - FICC Electronic Trading Application Developer

Location
Greater London, England, United Kingdom
Qualifications, Capabilities, and Skills Experience building trading applications in fixed income, macro, equities, or credit domains Familiarity with front-end technologies such as C#, JavaScript, HTML5, or Angular Knowledge of modern software architecture patterns and frameworks Interest or experience in cloud computing, machine learning, or data science Understanding of core ...

Frontend Developers (Design-Focused) Jnr/Senior – Bank – London

Location
Greater London, England, United Kingdom
discussions and collaborative problem-solving. Help improve frontend standards, component quality and user experience across the platform. Required Skills & Experience Strong HTML, CSS and JavaScript fundamentals. Experience building responsive and cross-browser web applications. Solid understanding of semantic HTML and maintainable CSS practices. Strong appreciation for visual design, layout, typography ...

Technical Support Engineer - Remote EMEA

Location
Greater London, England, United Kingdom
experience in one or more of the following areas: Programming: proficiency in one or more modern languages such as Python, Go, Java, C++, or JavaScript/Node.js. Operational experience: experience administering large-scale production environments, including hardware, operating systems, networks (firewalls/load balancers), and cloud platforms like AWS, Azure ...

Senior Unity Developer (6 months FTC) ITV Careers

Location
Greater London, England, United Kingdom
mobile gaming & monetisation experience At least 3 published games, and 1 live service title. Other things we’re looking for (key criteria) HTML, CSS & Javascript experience PixiJS & Phaser experience University Degree in CS or Game Development & Programming (desirable) Lua, JS Experience, WebDev experience Open to using AI tools to assist ...

Sr Lead Software Engineer

Location
Greater London, England, United Kingdom
core Java concepts Proficiency with frontend frameworks like ReactJS Hands on experience working with SQL and NoSQL databases Advanced programming in Java and Javascript #J-18808-Ljbffr ...

Lead Engineer

Location
Greater London, England, United Kingdom
developer experience challenges. We’re Looking For These Essential Skills Strong experience building applications, tools or platforms using .Net TypeScript, Node.js and modern JavaScript technologies. Ability to develop developer-focused tooling that improves productivity, software quality and engineering efficiency. Passion for creating exceptional developer experiences through automation, self-service capabilities ...

Full Stack Engineer

Location
Greater London, England, United Kingdom
window to plan, develop, and release secure, cost-efficient features. What You Bring Experience: 3+ years of experience as a front-end engineer utilizing JavaScript/TypeScript and the React library. AI-Assisted Workflow: Daily practical experience with AI-assisted or agentic development tools, with the engineering judgment needed ...