101 to 125 of 633 JavaScript Jobs in London

with at least one production AI, data engineering, or enterprise integration system deployed to production. High proficiency in at least one modern language: Python, JavaScript/TypeScript, Java, or Apex. Hands-on AI & Grounding Expertise: Deep experience with LLM orchestration, prompt tuning, and building RAG pipelines, vector search indexes ...

BRING 5+ years of software engineering experience, including technical leadership. Expertise in Java/Kotlin, Spring Boot, REST APIs, and MongoDB. Experience with ReactJS, JavaScript, and TypeScript. Strong understanding of secure coding (e.g., OWASP principles). Strong experience with CI/CD, Git workflows, automated testing. Experience leading AI feature ...

Governance — Own solution management and CI/CD in Azure DevOps (managed/unmanaged strategy, environment strategy, versioning) Client-Side Engineering — Implement standards-compliant JavaScript/TypeScript for form logic, validation, and UX polish Data Modeling — Define and maintain tables, relationships, keys/alternate keys, and business rules to uphold ...

time). Experience: Recent university graduate (up to 2 years postgraduate experience maximum) NICE TO HAVE Languages: Experience with Python, C, HTML, Java, JavaScript, or SQL. Cloud: Familiarity with cloud platforms (AWS/Azure). AI Tools: Experience using AI-powered development tools or CLI assistants (e.g., Claude Code, Gemini ...

related technical field, or equivalent practical experience.5+ years of progressive software engineering experience developing applications in languages such as Java, Python, or JavaScript, with experience independently delivering complex technical solutions.Strong hands-on experience designing and delivering cloud-native solutions using AWS or equivalent, containerized microservices, and modern software delivery practices.Experience ...

related technical field, or equivalent practical experience. 5+ years of progressive software engineering experience developing applications in languages such as Java, Python, or JavaScript, with experience independently delivering complex technical solutions. Strong hands-on experience designing and delivering cloud-native solutions using AWS or equivalent, containerized microservices, and modern software ...

with Jenkins, GitHub Actions, GitLab CI, Azure DevOps, or similar CI/CD platforms. Ideally you will have coding experience with either Python or Javascript Experience delivering cloud migration and transformation programmes. Experience working with UK Government, Defence, National Security, or other highly regulated clients. Familiarity with security frameworks, accreditation ...

equivalent professional experience.8+ years of professional software development experience.Strong experience with C# and .NET development across web and/or desktop applications.Experience with JavaScript or TypeScript.Strong knowledge of SQL Server, relational database design, stored procedures, and T-SQL.Experience developing HTTP APIs and service-oriented or distributed systems.Experience working with message ...

with prompt engineering or building lightweight AI agents or automationpipelines is a strong plus Core Technical Skills .NET/C# — solid backend development fundamentals JavaScript/TypeScript, React or Next.js for headless front-end delivery RESTful andGraphQLAPI design and integration CI/CD pipeline setup and management (Azure DevOps, GitHub ...

knowledge of multiple test frameworks and tools– Pytest, Pytest‐BDD, Playwright, Cucumber, Junit or TestNG Proficiency in programming with Python and working knowledge of JavaScript/TypeScript. Experience with database testing (Postgres, SQL Server, Athena Iceberg) and data‐centric applications. Strong understanding of API, UI, integration ...

related field, or an equivalent in relevant work experience.* Professional software development experience in at least one modern language such as Java, Go, Typescript, JavaScript, or Python.* Strong OO and functional design skills with an understanding of common design patterns.* Strong understanding of web development principles, including HTML ...

with at least one production AI, data engineering, or enterprise integration system deployed to production. High proficiency in at least one modern language: Python, JavaScript/TypeScript, Java, or Apex. Hands‐on AI & Grounding Expertise: Deep experience with LLM orchestration, prompt tuning, and building RAG pipelines, vector search indexes ...

across the development lifecycle, working closely with product, design and backend engineers. What you'll bring Strong commercial experience with React and TypeScript Excellent JavaScript, HTML and CSS skills Experience with APIs, asynchronous data and application state Strong understanding of frontend architecture and reusable components Experience building responsive, accessible ...

skills. Strong written and verbal communication skills in English. Ability to work independently and within distributed international teams. Technical Skills Python (Expert Level) C# JavaScript/TypeScript SQL AI & Machine Learning Machine Learning Deep Learning Neural Networks Natural Language Processing (NLP) Generative AI Large Language Models (LLMs) Retrieval-Augmented Generation ...

security hardening. Containerization: Hands-on experience with Docker and Kubernetes for container orchestration. Front-End Fundamentals: Exposure to client-side technologies such as JavaScript and Angular. Clearance: Active UK Security Check (SC) clearance is strictly required prior to onboarding. Randstad Technologies is acting as an Employment Business in relation ...

Requirements Strong commercial experience in senior backend, platform or software engineering roles, with the ability to lead technical design and delivery. Advanced TypeScript, JavaScript and Node.js experience, particularly within microservices and distributed architectures. Strong hands-on AWS experience, designing and deploying scalable, cloud-native applications. Practical experience with Model Context ...

degree in Business, Information Technology, Computer Science or a related discipline. Some foundational knowledge of at least one programming language, such as Python, JavaScript, Java or C#. An understanding of basic software testing principles and the Software Development Life Cycle (SDLC). Strong analytical and problem-solving skills. Excellent attention ...

degree in Business, Information Technology, Computer Science or a related discipline. Some foundational knowledge of at least one programming language, such as Python, JavaScript, Java or C#. An understanding of basic software testing principles and the Software Development Life Cycle (SDLC). Strong analytical and problem-solving skills. Excellent attention ...

monitoring. Use AI development tools to improve delivery speed while reviewing and validating generated code. Skills, Knowledge and Expertise Strong development experience with TypeScript, JavaScript, Node.js, React and Python. Hands-on GCP experience, particularly with Cloud Run, BigQuery and Pub/Sub, alongside experience using Airflow for workflow orchestration. Strong ...

analysis, while reviewing AI-generated output for correctness and quality. Knowledge and Experience Expert QA experience, including test planning and automation. Expert experience with JavaScript or TypeScript and Cypress for front-end testing. Strong knowledge of REST/SOAP APIs, JSON, XML. Proficient in tools like JIRA, Postman, ReadyAPI ...

fundamentals with hands-on experience across the software development lifecycle, including system design, development, testing, release, and production support Proficiency in Python, Java, and JavaScript or TypeScript Experience building and supporting production-grade systems Experience in large-scale enterprise environments, developing, debugging, and maintaining code and data integrations using modern ...

issues and ensure service continuity. The Fit: At present we are interested in speaking to Full Stack Engineers with commercial experience using Java, TypeScript, JavaScript and React. You will also be comfortable working with cloud technologies, primarily AWS and Azure. Previous consultancy experience is useful but not essential ...

grade environments. Strong hands‐on automation skills (e.g. Playwright/Selenium for UI; REST Assured, Postman or similar for API; Java or TypeScript/JavaScript). Experience with contract testing (e.g. Pact) and testing microservices and event‐driven systems. Solid CI/CD knowledge, with experience integrating tests into pipelines. ...

leadership capabilities. Experience Experience working across diverse technology landscapes including OutSystems, D365, Power Platform, GCP Data & AI, Azure API Platforms. Technical awareness of TypeScript, JavaScript, C#, Python, Pytest, SQL, Playwright, API testing, CI/CD, DevOps, and AI-assisted testing Experience operating within regulated, risk-sensitive environments Benefits Collaborative working ...

real time data scenarios. Experience with Market Data providers, Reuters, Bloomberg, TT, ICE etc Experience any of Visual Studio Tools for Office, Excel DNA, Javascript or other Excel Addin development technologies, MS Access, WPF, Azure Dev Ops Experience of Python, Jupyter Notebooks. Highly responsible, self-motivated, and able to thrive ...