51 to 75 of 1,113 JavaScript Jobs in the UK

Experience: Essential: * Strong collaboration and communication skills * Backend development experience using C# .NET, Node.js or Next.js * Front-end development experience with TypeScript or JavaScript * Experience using Git or other version control systems Desirable: * Next.js * React.js * Sanity CMS * Vercel * SQL Server * Microsoft Azure (including Azure Functions) * Understanding of REST APIs ...

. Experience integrating blockchain with web apps (wallets, APIs, indexing services). Strong understanding of security, scalability, and distributed systems. Technical Competencies TypeScript/JavaScript, REST/GraphQL APIs CI/CD pipelines and DevOps tooling Cloud security, identity, and access management Blockchain tooling (Hardhat, Foundry, Web3.js/Ethers.js ...

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 ...

Hands-on experience building automation frameworks using Playwright (preferred). Strong scripting ability in C#/.NET. Experience testing modern web applications (HTML, CSS, JavaScript). Experience with API testing tools such as Postman or similar. Understanding of SQL for data validation and test setup. Experience working within Agile environments. ...

Experience 5+ years of experience in frontend/UI engineering, with a focus on performance and scale Deep expertise in React, TypeScript, and JavaScript Strong understanding of WebSocket integration, low-latency data streaming, and threading Experience troubleshooting data-heavy UIs and optimising load times Familiarity with tools like Redis, Kafka ...

NEED THE SENIOR SOFTWARE ENGINEER TO HAVE.... Current enhanced DV clearance Experience with at least one of the following: Java, Python, C++, C#, .NET, JavaScript, React Experience mentoring juniors or leading teams is nice to have but not essential Experience/Knowledge of automation IT WOULD BE NICE ...

residency, no gaps longer than 30 days) Nice-to-Have: TDD/BDD experience Exposure to enterprise middleware, secure integrations, or frontend technologies (JavaScript) Experience with microservice architectures or large-scale software delivery What's on Offer: Competitive salary with bonuses Hybrid working : 3 days per week in Newcastle office ...

opportunity to learn best practices and progress your career quickly. Requirements 6 months - 2 years' experience in C# .NET Exposure to Angular Experience with JavaScript/TypeScript, HTML and CSS Basic knowledge of SQL/databases Understanding of REST APIs and web application architecture Passion for learning and developing your ...

collaboration and engineering the best possible Java code. Must Have Skills: Experience with Java 8, Java 11, Spring Framework, Spring Boot Solid understanding of JavaScript: Angular and NodeJS preferred Practical Micro services development experience • Practical Relational Database development experience (e.g. PostgreSQL) REST APIs • Strong understanding CI and DevOps technologies (Hands ...

related field 5+ years of experience in frontend/UI engineering, with a focus on performance and scale Deep expertise in React, TypeScript, and JavaScript Strong understanding of WebSocket integration, low-latency data streaming, and threading Experience troubleshooting data-heavy UIs and optimising load times Familiarity with tools like Redis ...

highly advantageous Agile development & Continuous Integration experience Exposure to Azure Stack, Power Automate, Power Apps Knowledge of microservice architecture Front-end experience (HTML, JavaScript, modern frameworks) Ready to level up your career? If you’re excited by building, integrating, automating, and delivering real impact — hit Apply with your updated CV. ...

Python (Django, Flask, or FastAPI) PostgreSQL (design, optimisation, maintenance) Containerisation (Docker/Kubernetes) Event-driven architecture (Kafka/RabbitMQ) Desirable experience includes: TypeScript/JavaScript (NextJS, NodeJS, Tailwind) Terraform and DevOps practices Experience in building and scaling SaaS platforms in production. Strong background in software architecture, microservices, and API design. ...

making. Skills and Experience: Essential 3+ years' experience in a Full Stack Engineering role Strong development skills in .NET, Java or Python, alongside modern JavaScript frameworks/libraries Experience working in Agile environments (Scrum, Kanban, TDD) Solid understanding of architectural and design patterns, including microservices and serverless Hands-on experience ...

making. Skills and Experience: Essential 3+ years’ experience in a Full Stack Engineering role Strong development skills in .NET, Java or Python, alongside modern JavaScript frameworks/libraries Experience working in Agile environments (Scrum, Kanban, TDD) Solid understanding of architectural and design patterns, including microservices and serverless Hands-on experience ...

passionate about building systems that last. You'll bring: Expert-level experience with C#, .NET and object-oriented design Strong front-end knowledge using JavaScript/TypeScript and React Deep experience designing and governing enterprise APIs (REST & SOAP), ideally on Azure Proven leadership in DevOps, CI/CD pipelines ...

zones Nice to Haves Hands-on experience integrating with third-party SaaS systems (ERP, HRIS, CRM, finance platforms, etc.) Working knowledge of frontend programming (JavaScript, HTML, CSS) Comfortable working with Excel Experience with authentication methods such as OAuth 2.0, API keys, JWT IT background with experience supporting, integrating, or administering ...

interpreting designs and patterns provided by other team members and approved 3rd parties into workable, scalable, reliable solutions. Proficient in creating code, processes, JavaScript, T-SQL, formulas, C#, PowerShell and other scripts as required. Proficient in manipulating and working with a range of data formats including JSON, XML, delimited text ...

developing and integrating AI solutions such as chatbots, voicebots, ML models, or LLM-based analytics. Strong proficiency in Python (preferred) and/or JavaScript/TypeScript. Hands-on experience with AI frameworks (e.g. TensorFlow, PyTorch, and/or LangChain) and LLM APIs (e.g. Azure OpenAI, OpenAI API, Anthropic, and/ ...

ecosystem. Strong expertise in Dataverse, custom connectors, Microsoft Graph API, SharePoint Framework (SPFx), and Azure services (Logic Apps, Functions). Proficiency in Power Fx, JavaScript, C#, HTML/CSS, and integrating third-party systems via REST APIs. Experience with complex integrations (including non-Microsoft databases/systems) and secure, compliant ...

variety of Defence, Cyber and Intelligence programmes. What skills will I need? Proficient in current Java, knowledge of other languages such as Python, C++, JavaScript, TypeScript, React is a bonus. Experience of developing on Linux. Appreciation of mocking and unit testing frameworks such as JUnit 5.x (Jupiter). Experienced with ...

variety of Defence, Cyber and Intelligence programmes. What skills will I need? Proficient in current Java, knowledge of other languages such as Python, C++, JavaScript, TypeScript, React is a bonus. Experience of developing on Linux. Appreciation of mocking and unit testing frameworks such as JUnit 5.x (Jupiter). Experienced with ...

app. What We're Looking For 5+ years of professional mobile development experience, with 2+ 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 within financial ...

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 within ...

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 ...

/USB3 Industrial Libraries, Microsoft Teams, Jira, GitHub, Bitbucket. Gitkrake Software Engineers will have strong ability to write clean code in python, C++, and JavaScript Very strong communication skills and ability to work independently to meet deadlines A demonstrated ability to rapidly pick up new skills in context and apply ...