26 to 50 of 295 JavaScript Jobs in London

delivery of production‐grade software using a variety of languages and frameworks, including but not limited to: Java, C#/.NET, Python, TypeScript, JavaScript, React, Go, Ruby, Scala, R, and SQL Actively experimented with AI development tools and translated that experimentation into faster, higher‐quality delivery for your teams ...

technical field, or equivalent practical experience.* 8+ years of progressive software engineering experience developing applications in object-oriented languages such as Java, Python, or JavaScript, including experience leading technical delivery across teams or major initiatives.* Extensive hands-on experience architecting and delivering cloud-native solutions using AWS or equivalent, containerized ...

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. Mentoring: Developing skills in mentoring engineers through pair programming and day‐to‐day collaboration. Communication: Clear written and verbal communication ...

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.* **Mentoring:** Developing skills in mentoring engineers through pair programming and day-to-day collaboration.* **Communication:** Clear written and verbal communication ...

Qualifications: Strong knowledge and experience with programming languages (e.g., Java, Python) Proficiency in web technologies (e.g., HTML, CSS, JavaScript) Familiarity with relevant technologies (e.g., XML, XSD) Skills: Experience in using tools such as GIT, JIRA, ServiceNow, and working in SCRUM/Agile framework Experience of working with SQL, JS, React ...

London) Overview SC Cleared freelancer needed with a frontend focus to build modern, scalable web applications, with some backend/API work. Tech & Skills JavaScript/TypeScript, React/Angular/Vue Node.js, REST/GraphQL APIs HTML, CSS, responsive & accessible design Testing (Jest/Cypress), CI/ ...

SENIOR SOFTWARE ENGINEER TO HAVE. Current enhanced DV clearance Experience with at least one or more of the following: Java, Python, C++, .NET, C#, JavaScript, React Experience mentoring juniors or leading a team Experience/Knowledge of automation IT WOULD BE NICE FOR THE SENIOR SOFTWARE ENGINEER TO HAVE. Cloud ...

Skills & Experience 3–5 years' software development experience Strong Python development skills with FastAPI, Flask or Django Experience building full-stack applications using React, JavaScript/TypeScript and Node.js Knowledge of GitHub, CI/CD, automated testing and Agile delivery methodologies Databricks experience highly desirable, including Lakehouse architecture and Delta ...

home 1-2 days. About you: You have strong Java backend software development skills including Spring Boot You also have front end experience with JavaScript and Angular You have experience with relational databases and SQL query writing You have a strong understanding of REST APIs, real-time systems, CI/ ...

across the full lifecycle Hands-on expertise with Microsoft-based environments (e.g. Azure testing tools, AI platforms) Proficiency in one or more: Python, Java, JavaScript, SQL, or R Proven experience in: AI/Generative AI testing RAG (Retrieval-Augmented Generation) solution validation (e.g. RAGAS framework) CI/CD, DevOps ...

across the full lifecycle Hands-on expertise with Microsoft-based environments (e.g. Azure testing tools, AI platforms) Proficiency in one or more: Python, Java, JavaScript, SQL, or R Proven experience in: AI/Generative AI testing RAG (Retrieval-Augmented Generation) solution validation (e.g. RAGAS framework) CI/CD, DevOps ...

Sales Dataverse Power Platform Power Apps (Model-Driven Apps) Power Automate Customer Insights Sales Accelerator Strong hands-on development capability including: C# .NET JavaScript Plugins Custom Workflow Activities REST APIs Experience designing enterprise integrations using: Azure Functions Logic Apps Service Bus Azure Data Factory Azure Key Vault Strong stakeholder management ...

SaaS environment Strong, hands on experience with Swift, which is essential for this role Experience working with modern languages and frameworks such as TypeScript, JavaScript, Node.js, and Angular Deep understanding of software architecture principles, patterns, and design methodologies Experience with cloud platforms such as Azure, AWS, or GCP Strong knowledge ...

content schemas, design tokens and component specifications. Experience with prompt engineering or AI automation pipelines is highly desirable. Core Technical Skills: .NET/C# JavaScript/TypeScript React or Next.js RESTful APIs GraphQL CI/CD pipelines (Azure DevOps or GitHub Actions) Performance optimisation WCAG 2.1 accessibility standards SEO best ...

credit preferred) Strong programming skills: Java for low‐latency services, concurrency, messaging Python for research, analytics, data processing FIX protocol experience Front‐end engineering: JavaScript/TypeScript React real‐time dashboards (REST/WebSocket) Modern UI state management Distributed systems: Kafka/Chronicle PostgreSQL/KDB++ Caching strategies Avro/ ...

equivalent experience. Experience: 8+ years of professional software engineering experience. Required Experience: C# and .NET development across web and/or desktop applications. JavaScript or TypeScript. SQL Server, relational database design, stored procedures, and T-SQL. HTTP APIs and service-oriented or distributed systems. Message queues, service buses, asynchronous processing ...

stakeholders. Nice to have: Experience working with LLMs, prompt engineering, model evaluation pipelines, and techniques for improving model quality and reliability. Tech Stack Frontend: JavaScript, React, TypeScript Backend: Go, Python Databases: DynamoDB, DocumentDB, and Postgres Deployment: GitHub Actions Observability: New Relic, Grafana Infrastructure: AWS services, GCP Benefits Personal development ...

stable as we grow. Security, compliance, and permissions models that protect our customers and meet enterprise‐grade standards. Tech Stack includes: Node.js (TypeScript & JavaScript), Dart/Flutter, C++, MySQL (Aurora), Redis, OpenSearch, AWS (Fargate, Lambda, CloudWatch), Docker, Terraform, GitHub Actions Requirements 8+ years of professional software engineering experience, specifically ...

automation Broader observability tooling knowledge advantageous: Splunk, Elastic, Datadog, Cribl Application-stack and programming awareness advantageous: Java and/or .NET, web technologies (JavaScript), SQL/relational databases, and distributed/microservices architectures (J2EE, .NET, microservices) Strong client management — comfortable with senior stakeholders and able to challenge constructively Direct line ...

skills, with the ability to work effectively in collaborative teams. Exposure to agile delivery methods. Experience with other development languages or frameworks such as JavaScript, Java, Python, or .NET - or a strong willingness to learn and adapt to new technologies as required. Qualifications & Certifications Salesforce Platform Developer I - Required Salesforce ...

LLMs, recommender systems, reinforcement learning) to enhance user experience in a meaningful business domain. Contribute across the tech stack : You’ll work in React (JavaScript/TypeScript) on the frontend and Python (FastAPI, SQLAlchemy) on the backend, shipping production-ready code and user-facing features in addition to innovative ...

mobile technologies.**What We’re Looking For*** 8+ years of professional mobile development experience, with **5+ years using React Native**.* Strong knowledge of **JavaScript/TypeScript**, ES6+ features, and modern React patterns.* Experience integrating third‐party libraries, analytics tools, and mobile SDKs* Strong understanding of secure mobile development, especially ...

move forward. Step 2 - Online Training The second step includes a selection of more advanced courses to get you up to speed. React-js JavaScript JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. ...

move forward. Step 2 - Online Training The second step includes a selection of more advanced courses to get you up to speed. React-js JavaScript JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. ...

move forward. Step 2 - Online Training The second step includes a selection of more advanced courses to get you up to speed. React-js JavaScript JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. ...