1,976 to 2,000 of 2,682 Permanent ECMAScript Jobs

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

Python Developer - Python, Django, REST API's, AWS, JavaScript OB are partnered with a Global Financial Services company, who are looking to add a highly skilled Python Developer to their team. In this role, you'll be working their Python backend systems, developing new features and collaborating with different teams, to ensure product goals are met. Python Developer - Python, Django … REST API's, AWS, JavaScript Key Skills and Experience: Strong knowledge of Python Experience with Python frameworks (Django preferred) PostgreSQL REST API'S Docker Cloud experience (AWS preferred) Knowledge of Frontend Technologies (JavaScript, HTML, CSS) This is a hybrid role with 2-3 days a week required in a London based office Base salary of £75k-£90k depending on skills … and experience To be considered, you must be UK based Python Developer - Python, Django, REST API's, AWS, JavaScript More ❯

Software Engineer (JavaScript/Node.js/AWS -Hybrid (2-3 days)- London- Salary £80k About the Company About Us We’re a small but ambitious tech start-up building scalable, AI-powered software that’s reshaping how businesses operate. Our team is lean, fast-moving, and focused on delivering products that make a real impact. We’re now looking for … ll take ownership of core platform development, designing and building backend services, integrating cloud infrastructure, and helping us scale quickly and reliably. You’ll be working with a modern JavaScript stack and AWS-based architecture to deliver performant, production-grade systems. What You’ll Do Design, build, and maintain backend systems using Node.js and JavaScript/TypeScript Develop and deploy … teams to deliver seamless user experiences Contribute to technical architecture and best practices Build with scalability, performance, and security in mind What We’re Looking For Strong experience with JavaScript/Node.js in a production environment Hands-on experience with AWS services Familiarity with REST APIs, microservices, and modern CI/CD workflows Comfortable working in a fast-paced, collaborative More ❯

Software Engineer (JavaScript/Node.js/AWS -Hybrid (2-3 days)- London- Salary £80k About the Company About Us We’re a small but ambitious tech start-up building scalable, AI-powered software that’s reshaping how businesses operate. Our team is lean, fast-moving, and focused on delivering products that make a real impact. We’re now looking for … ll take ownership of core platform development, designing and building backend services, integrating cloud infrastructure, and helping us scale quickly and reliably. You’ll be working with a modern JavaScript stack and AWS-based architecture to deliver performant, production-grade systems. What You’ll Do Design, build, and maintain backend systems using Node.js and JavaScript/TypeScript Develop and deploy … teams to deliver seamless user experiences Contribute to technical architecture and best practices Build with scalability, performance, and security in mind What We’re Looking For Strong experience with JavaScript/Node.js in a production environment Hands-on experience with AWS services Familiarity with REST APIs, microservices, and modern CI/CD workflows Comfortable working in a fast-paced, collaborative More ❯

who support across cutting-edge public-sector projects within the central government space. Currently, they’re in search of Senior Engineer’s with Full Stack experience across Java with JavaScript/React and have exposure to cloud-based environments with AWS. What you’ll need as a Full Stack Engineer: A minimum of 4 years development experience with one or … more of the following: Java and or Python Javascript – React Cloud Experience: AWS You’ll be familiar with agile ways of working What you’ll do as a Full Stack Engineer: Designing, developing, and testing software solutions to meet diverse requirements using Java, Python and Javascript/React. Leveraging a variety of technologies, with a focus on open-source components More ❯

Frontend Software Engineer will be responsible for working in a creative environment to build the frontend platform to industry standards. You will be working with scripting languages such as JavaScript and Typescript, spun up into an AWS platform. You'll be working alongside a very strong managerial team with great pedigree and have the opportunity to lead on architectural decisions … while mentoring junior developers from a technical standpoint. What will I be doing? Developing web applications and systems using JavaScript, React and Typescript. Define and analyse business requirements. Support continuous improvement and integrations to enhance deployment. Collaborate with engineers, architects and tested to develop unit code. Working in an AWS environment Key requirements: JavaScript development, for at least 3 years. More ❯

in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python. OR Associate's Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, or related field AND 5+ years experience in Software Engineering … Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python. OR Bachelor's Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, or related field AND 4+ years experience in Software Engineering, Computer Science, or … related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python. OR Master's Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, or related field AND 2+ years experience in Software Engineering, Computer Science, or related technical discipline More ❯

bottlenecks, putting the right telemetry in place, and helping our teams deliver a faster, more reliable experience for customers at scale. Key Must Have Skills: .NET (C#), DOM performance JavaScript MS SQL Server, query optimisation, and indexing strategies K6, Playwright, AppInsights Azure DevOps - CI/CD pipelines and observability tooling What you’ll be doing Front-end performance: Investigate and … optimise browser behaviour, including JavaScript execution, rendering, and DOM interactions. Backend performance: Analyse .NET applications for efficiency, memory usage, and concurrency, implementing improvements where needed. Database tuning: Optimise SQL queries, indexes, and overall database performance. Instrumentation & monitoring: Expand and refine telemetry across the stack using tools such as AppInsights, K6, and Playwright. Collaboration: Partner with engineers, testers, and product teams …/performance scenarios to uncover weaknesses and recommend fixes. What we’re looking for Strong background in performance engineering across browser, server, and database layers. Hands-on expertise with: JavaScript profiling and browser internals. .NET (C#), async programming, concurrency, and memory management. SQL Server query tuning and indexing. Familiarity with modern observability and testing tools (e.g. K6, Playwright, AppInsights, Azure More ❯

supports clients within the Central Government, Utilities and retail sectors are looking to hire multiple Java Fullstack developers. We are specifically looking for developers with Java Spring Boot experience, JavaScript (React/Typescript) and are eligible for security clearance (Please refer to the U.K Government website for eligibility criteria). What You’ll Bring: Eligibility for security clearance is essential … Proven experience in Java Development ( Spring Boot essentia l) Proficiency in JavaScript/TypeScript (with React being a plus) Hands-on experience with GIT and CI/CD pipelines Experience working on Government projects and/or familiarity with Vercel AI and Langchain is a huge advantage Why This is the Perfect Opportunity for You: Career growth: Take your career … impact in a rapidly evolving digital space, this is the opportunity you’ve been waiting for. Apply now and start your journey with us! Key skills: Java, Spring Boot, JavaScript (React/Typescript), CI/CD, GIT and any experience with Gov projects would be desirable but not essential More ❯

our digital platforms and create innovative, engaging features for our users. Who We're Seeking: We're looking for a passionate Front-End Developer with solid experience in modern JavaScript frameworks, particularly React.js and TypeScript . You'll be working within a multi-disciplined team to build new site features, optimise customer journeys, and contribute to the continued evolution of … React and TypeScript Develop microservices and campaign toolkits to enhance user experience Participate in sprint planning, design discussions, and technical reviews What You'll Bring: Strong proficiency in TypeScript, JavaScript Hands-on experience with React.js, Next.js and familiarity with Node.js Understanding of eCommerce and user-centric web development Positive, proactive attitude with excellent teamwork and communication skills Benefits: Salary up … to call on/. By applying, you consent to your details being processed for this vacancy only. We look forward to hearing from you! Key Skills: React, TypeScript, JavaScript, HTML, SCSS, Node.js More ❯

our digital platforms and create innovative, engaging features for our users. Who We’re Seeking: We’re looking for a passionate Front-End Developer with solid experience in modern JavaScript frameworks, particularly React.js and TypeScript . You’ll be working within a multi-disciplined team to build new site features, optimise customer journeys, and contribute to the continued evolution of … React and TypeScript Develop microservices and campaign toolkits to enhance user experience Participate in sprint planning, design discussions, and technical reviews What You’ll Bring: Strong proficiency in TypeScript, JavaScript Hands-on experience with React.js, Next.js and familiarity with Node.js Understanding of eCommerce and user-centric web development Positive, proactive attitude with excellent teamwork and communication skills Benefits: Salary up …/07880 358 148 . By applying, you consent to your details being processed for this vacancy only. We look forward to hearing from you! Key Skills: React, TypeScript, JavaScript, HTML, SCSS, Node.jsCSS3 More ❯

La Fosse has partnered with a global leader in customer loyalty and travel services. We're looking for a Senior Software Engineer with a strong background in full-stack JavaScript (Backend JS leaning) to join their growing team. Your mission: Build greenfield systems from the ground up, with opportunities to explore AI, automation, and industry-leading engineering practices. What They … re Looking For 6+ years of technical experience with the Full Stack JavaScript ecosystem Experience leading the design, development, and operation of innovative software solutions Strong skills in modern web development (Node.js, AWS, TypeScript) and a solid understanding of web architecture Proficiency in building and managing APIs (GraphQL & RESTful) and strong database fundamentals (MongoDB) In-depth knowledge of AWS services More ❯

La Fosse has partnered with a global leader in customer loyalty and travel services. We're looking for a Senior Software Engineer with a strong background in full-stack JavaScript (Backend JS leaning) to join their growing team. Your mission: Build greenfield systems from the ground up, with opportunities to explore AI, automation, and industry-leading engineering practices. What They … re Looking For 6+ years of technical experience with the Full Stack JavaScript ecosystem Experience leading the design, development, and operation of innovative software solutions Strong skills in modern web development (Node.js, AWS, TypeScript) and a solid understanding of web architecture Proficiency in building and managing APIs (GraphQL & RESTful) and strong database fundamentals (MongoDB) In-depth knowledge of AWS services More ❯

Provide work estimates to project team Troubleshoot applications and make recommendations for improvement Coach and mentor other developers on the team Basic Qualifications: Power Platform Development (Plugin, Power Automate, JavaScript) Microsoft ASP.NET (V4.x, V8) Azure (Service Bus, App Services, Web Jobs, Function Apps) Microsoft Power Platform Solution Architect Expert (PL-600) certification PowerApps/Dynamics 365 Plugin, Custom Workflow, Client … JavaScript, PCF development .NET 8 development on Azure Platform Service As A Platform System integration experience (Azure Service Bus, Messaging Queue, SSIS) Experience Microsoft.NET, ASP.NET, .NET Core development Experience with source code control (GIT/TFS) and software configuration management tools Experience with relational database (SQL Server) design and development Experience with JS libraries, HTML5, and CSS Experience developing in More ❯

Fullstack Javascript/Node.JS Engineer - Based in Birmingham (2 days onsite per week) - Paying up to £80,000 depending on experience 🚀 A global consultancy specializing in Enterprise clients is urgently seeking a Fullstack Engineer - from frontend and backend development to cloud infrastructure. This hybrid position offers the flexibility of remote work while requiring a regular on-site presence (2 days … onsite). Key Skills: - 5 years professional experience with TypeScript, JavaScript, and Node.js - Experience with frameworks such as React and NextJS, and API Design - Excellent communication skills with stakeholders and team members - Solid understanding of web development fundamentals and performance optimisation techniques - Ability to design, develop, test, deploy, and continuously improve software Skilled in managing project priorities, deadlines, and deliverables More ❯