26 to 50 of 84 JavaScript Engineer Jobs

JavaScript Full-Stack Engineer - Climate-Tech Start-Up - Fully Remote JavaScript Full-Stack Engineer required for a fully remote role in a well-backed Climate-Tech team, you will be looking to join a positive impact business with an exceptional JavaScript/React/Next.js engineering team where you can progress your software engineering career … in a forward-thinking organisation. About the Company: Fast-growing climate-tech start-up with backing from leading climate investors are looking for a full-stack product engineer who can think from a customer point of view while shaping how the product evolves. You’ll work closely with the founders, customers and stakeholders to shape, build, test, and deliver … s potential for this position to evolve into a leadership role in customer success. About you: 5+ years in software development Experience building products end-to-end Full-stack engineer with Strong React/Next.js, experience with Tailwind and UI best practices would be highly beneficial Experience with cloud infrastructure (AWS/Azure/GCP), DevOps and data/ More ❯

JavaScript Full-Stack Engineer - Climate-Tech Start-Up - Fully Remote JavaScript Full-Stack Engineer required for a fully remote role in a well-backed Climate-Tech team, you will be looking to join a positive impact business with an exceptional JavaScript/React/Next.js engineering team where you can progress your software engineering career … in a forward-thinking organisation. About the Company: Fast-growing climate-tech start-up with backing from leading climate investors are looking for a full-stack product engineer who can think from a customer point of view while shaping how the product evolves. You’ll work closely with the founders, customers and stakeholders to shape, build, test, and deliver … s potential for this position to evolve into a leadership role in customer success. About you: 5+ years in software development Experience building products end-to-end Full-stack engineer with Strong React/Next.js, experience with Tailwind and UI best practices would be highly beneficial Experience with cloud infrastructure (AWS/Azure/GCP), DevOps and data/ More ❯

JavaScript Full-Stack Engineer - Climate-Tech Start-Up - Fully Remote JavaScript Full-Stack Engineer required for a fully remote role in a well-backed Climate-Tech team, you will be looking to join a positive impact business with an exceptional JavaScript/React/Next.js engineering team where you can progress your software engineering career … in a forward-thinking organisation. About the Company: Fast-growing climate-tech start-up with backing from leading climate investors are looking for a full-stack product engineer who can think from a customer point of view while shaping how the product evolves. You’ll work closely with the founders, customers and stakeholders to shape, build, test, and deliver … s potential for this position to evolve into a leadership role in customer success. About you: 5+ years in software development Experience building products end-to-end Full-stack engineer with Strong React/Next.js, experience with Tailwind and UI best practices would be highly beneficial Experience with cloud infrastructure (AWS/Azure/GCP), DevOps and data/ More ❯

Senior Full Stack Developer (JavaScript) Who are we? Enablis is a technology delivery consultancy who partner with clients to accelerate digital roadmaps. By combining our deep knowledge and best practice experience with the client’s domain expertise, we are able to deliver technology solutions quickly, efficiently and as stress free as possible. We keep things simple and have a … of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment. At enablis, we’re big proponents of the T-Shape engineer profile, recognising the value of people covering a broader spectrum of skills, this works really well in the dynamic world of consulting and provides our employees with career experience More ❯

Senior Full Stack Developer (JavaScript) Who are we? Enablis is a technology delivery consultancy who partner with clients to accelerate digital roadmaps. By combining our deep knowledge and best practice experience with the client’s domain expertise, we are able to deliver technology solutions quickly, efficiently and as stress free as possible. We keep things simple and have a … of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment. At enablis, we’re big proponents of the T-Shape engineer profile, recognising the value of people covering a broader spectrum of skills, this works really well in the dynamic world of consulting and provides our employees with career experience More ❯

JavaScript Full-Stack Engineer - Climate-Tech Start-Up - Fully Remote Ensure you read the information regarding this opportunity thoroughly before making an application. JavaScript Full-Stack Engineer required for a fully remote role in a well-backed Climate-Tech team, you will be looking to join a positive impact business with an exceptional JavaScript/… engineering career in a forward-thinking organisation. About the Company: Fast-growing climate-tech start-up with backing from leading climate investors are looking for a full-stack product engineer who can think from a customer point of view while shaping how the product evolves. You ll work closely with the founders, customers and stakeholders to shape, build, test … s potential for this position to evolve into a leadership role in customer success. About you: 5+ years in software development Experience building products end-to-end Full-stack engineer with Strong React/Next.js, experience with Tailwind and UI best practices would be highly beneficial Experience with cloud infrastructure (AWS/Azure/GCP), DevOps and data/ More ❯

JavaScript Full-Stack Engineer - Climate-Tech Start-Up - Fully Remote Ensure you read the information regarding this opportunity thoroughly before making an application. JavaScript Full-Stack Engineer required for a fully remote role in a well-backed Climate-Tech team, you will be looking to join a positive impact business with an exceptional JavaScript/… engineering career in a forward-thinking organisation. About the Company: Fast-growing climate-tech start-up with backing from leading climate investors are looking for a full-stack product engineer who can think from a customer point of view while shaping how the product evolves. You ll work closely with the founders, customers and stakeholders to shape, build, test … s potential for this position to evolve into a leadership role in customer success. About you: 5+ years in software development Experience building products end-to-end Full-stack engineer with Strong React/Next.js, experience with Tailwind and UI best practices would be highly beneficial Experience with cloud infrastructure (AWS/Azure/GCP), DevOps and data/ More ❯

Software Engineer/Full Stack Developer (C# .Net Core AWS JavaScript) St Albans/WFH to £100k Opportunity to progress your career in a senior hands-on role at a technology driven trading company that invest in Sports betting markets, with a flat structure where you will get your voice heard and can make a real impact on … the bottom line, earning significant bonuses. What's in it for you: As a Software Engineer you will earn a competitive package: Salary to £100k Bonus 25 days holiday, rising to 30 after 2 years Enhanced parental leave Contributory pension scheme Private Medical MSDN subscription Discounts for gym membership, travel and cinema Sabbatical after 10 years of service Flexible … working with 2 days work from home per week Your role: As a Software Engineer you'll join an Agile development team to design and develop new features and enhancements to complex Payments and client systems within a microservices environment (300 services). You'll be working with a modern tech stack using C# .Net Core, AWS, Kubernetes, Kafka More ❯

Software Engineer/Full Stack Developer (C# .Net Core AWS JavaScript) St Albans/WFH to £100k Opportunity to progress your career in a senior hands-on role at a technology driven trading company that invest in Sports betting markets, with a flat structure where you will get your voice heard and can make a real impact on … the bottom line, earning significant bonuses. What's in it for you: As a Software Engineer you will earn a competitive package: Salary to £100k Bonus 25 days holiday, rising to 30 after 2 years Enhanced parental leave Contributory pension scheme Private Medical MSDN subscription Discounts for gym membership, travel and cinema Sabbatical after 10 years of service Flexible … working with 2 days work from home per week Your role: As a Software Engineer you'll join an Agile development team to design and develop new features and enhancements to complex Payments and client systems within a microservices environment (300 services). You'll be working with a modern tech stack using C# .Net Core, AWS, Kubernetes, Kafka More ❯

Software Engineer/Full Stack Developer (C# .Net Core AWS JavaScript) St Albans/WFH to £100k Opportunity to progress your career in a senior hands-on role at a technology driven trading company that invest in Sports betting markets, with a flat structure where you will get your voice heard and can make a real impact on … the bottom line, earning significant bonuses. What's in it for you: As a Software Engineer you will earn a competitive package: Salary to £100k Bonus 25 days holiday, rising to 30 after 2 years Enhanced parental leave Contributory pension scheme Private Medical MSDN subscription Discounts for gym membership, travel and cinema Sabbatical after 10 years of service Flexible … working with 2 days work from home per week Your role: As a Software Engineer you'll join an Agile development team to design and develop new features and enhancements to complex Payments and client systems within a microservices environment (300 services). You'll be working with a modern tech stack using C# .Net Core, AWS, Kubernetes, Kafka More ❯

Software Engineer (Java/JavaScript/Node/Full Stack) Gloucester (Hybrid, 2–3 days on site) £42,000 – £62,000 + £7,000 Annual DV Bonus + Excellent Package | Permanent Our client is a digital intelligence consultancy supporting mission-critical programmes in the UK’s National Security sector. Their engineers design and deliver high-assurance software systems … enable government partners to tackle threats such as terrorism, child exploitation, and serious organised crime. The Role You’ll join a collaborative team developing full-stack solutions in Java, JavaScript, or Node.js — building secure platforms and APIs that process and analyse sensitive data at scale. It’s a technically rich environment, combining software engineering, data, and cloud infrastructure in … projects that directly support the UK’s intelligence mission. Key Responsibilities Build and maintain secure, high-performing applications using Java or JavaScript/Node.js. Work on backend services, APIs, and microservice integrations. Contribute to system design and architecture discussions. Support CI/CD and deployment in AWS-based environments. Participate in Agile ceremonies and peer reviews. What You’ll More ❯

Software Engineer (Java/JavaScript/Node/Full Stack) Gloucester (Hybrid, 2–3 days on site) £42,000 – £62,000 + £7,000 Annual DV Bonus + Excellent Package | Permanent Our client is a digital intelligence consultancy supporting mission-critical programmes in the UK’s National Security sector. Their engineers design and deliver high-assurance software systems … enable government partners to tackle threats such as terrorism, child exploitation, and serious organised crime. The Role You’ll join a collaborative team developing full-stack solutions in Java, JavaScript, or Node.js — building secure platforms and APIs that process and analyse sensitive data at scale. It’s a technically rich environment, combining software engineering, data, and cloud infrastructure in … projects that directly support the UK’s intelligence mission. Key Responsibilities Build and maintain secure, high-performing applications using Java or JavaScript/Node.js. Work on backend services, APIs, and microservice integrations. Contribute to system design and architecture discussions. Support CI/CD and deployment in AWS-based environments. Participate in Agile ceremonies and peer reviews. What You’ll More ❯

QA Engineer 🧑💻 | C# | JavaScript | Playwright | FinTech | £95,000💷 My client is seeking a QA Engineer to work across the front, middle and back office. This role is seeking candidates who have exposure to the below skill set and come from a financial background. Location - London📍 Salary - £95,000 💷 Hybrid Working - 3 days per week onsite 🏢 Strong proficiency More ❯

QA Engineer 🧑💻 | C# | JavaScript | Playwright | FinTech | £95,000💷 My client is seeking a QA Engineer to work across the front, middle and back office. This role is seeking candidates who have exposure to the below skill set and come from a financial background. Location - London📍 Salary - £95,000 💷 Hybrid Working - 3 days per week onsite 🏢 Strong proficiency More ❯

QA Engineer 🧑💻 | C# | JavaScript | Playwright | FinTech | £95,000💷 My client is seeking a QA Engineer to work across the front, middle and back office. This role is seeking candidates who have exposure to the below skill set and come from a financial background. Location - London📍 Salary - £95,000 💷 Hybrid Working - 3 days per week onsite 🏢 Strong proficiency More ❯

QA Engineer 🧑💻 | C# | JavaScript | Playwright | FinTech | £95,000💷 My client is seeking a QA Engineer to work across the front, middle and back office. This role is seeking candidates who have exposure to the below skill set and come from a financial background. Location - London📍 Salary - £95,000 💷 Hybrid Working - 3 days per week onsite 🏢 Strong proficiency More ❯

QA Engineer 🧑💻 | C# | JavaScript | Playwright | FinTech | £95,000💷 My client is seeking a QA Engineer to work across the front, middle and back office. This role is seeking candidates who have exposure to the below skill set and come from a financial background. Location - London📍 Salary - £95,000 💷 Hybrid Working - 3 days per week onsite 🏢 Strong proficiency More ❯

Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid – 2 days WFH) Salary: £150,000 - £200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . … complexity that ordinary web development never touches. What you’ll do Design and optimise a high-performance UI framework used globally in real-time applications. Push the limits of JavaScript, TypeScript, and the browser runtime to handle millions of data points smoothly. Solve deep algorithmic and architectural challenges in rendering, scalability, and memory efficiency. Own features end-to-end … design, code, test, release, and iterate. Contribute to a product used by developers and enterprises worldwide. What you’ll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM More ❯

Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid – 2 days WFH) Salary: £150,000 - £200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . … complexity that ordinary web development never touches. What you’ll do Design and optimise a high-performance UI framework used globally in real-time applications. Push the limits of JavaScript, TypeScript, and the browser runtime to handle millions of data points smoothly. Solve deep algorithmic and architectural challenges in rendering, scalability, and memory efficiency. Own features end-to-end … design, code, test, release, and iterate. Contribute to a product used by developers and enterprises worldwide. What you’ll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM More ❯

Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid – 2 days WFH) Salary: £150,000 - £200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . … complexity that ordinary web development never touches. What you’ll do Design and optimise a high-performance UI framework used globally in real-time applications. Push the limits of JavaScript, TypeScript, and the browser runtime to handle millions of data points smoothly. Solve deep algorithmic and architectural challenges in rendering, scalability, and memory efficiency. Own features end-to-end … design, code, test, release, and iterate. Contribute to a product used by developers and enterprises worldwide. What you’ll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM More ❯

Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid – 2 days WFH) Salary: £150,000 - £200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . … complexity that ordinary web development never touches. What you’ll do Design and optimise a high-performance UI framework used globally in real-time applications. Push the limits of JavaScript, TypeScript, and the browser runtime to handle millions of data points smoothly. Solve deep algorithmic and architectural challenges in rendering, scalability, and memory efficiency. Own features end-to-end … design, code, test, release, and iterate. Contribute to a product used by developers and enterprises worldwide. What you’ll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM More ❯

Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid – 2 days WFH) Salary: £150,000 - £200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . … complexity that ordinary web development never touches. What you’ll do Design and optimise a high-performance UI framework used globally in real-time applications. Push the limits of JavaScript, TypeScript, and the browser runtime to handle millions of data points smoothly. Solve deep algorithmic and architectural challenges in rendering, scalability, and memory efficiency. Own features end-to-end … design, code, test, release, and iterate. Contribute to a product used by developers and enterprises worldwide. What you’ll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM More ❯

candidate will contribute to the growth of the platform, exercising an eye for detail across all aspects of the development lifecycle while maintaining organization and good code hygiene. This engineer should be able to effectively communicate both with internal teams and with clients. The successful candidate will help Glint continue to grow, exercising an eye for detail across all … aspects of the development lifecycle while maintaining organization and good code hygiene. This Senior Engineer should be able to effectively communicate both with internal teams and with clients. The successful candidate values teamwork and collaboration, as well as continuous learning and application of new technologies and trends. With progression in this track, the responsibilities expand to include leading teams More ❯

Role: Software Engineer (Java, TypeScript, JavaScript, NodeJS, ReactJS, Python) Location: Remote working with some meetings at offices either in Manchester or London. IR35 status: Outside Length of contract: 5 months initial contract (with a view to possible extension) Overview We are seeking a Software Engineer to support the delivery and maintenance of shared engineering components and templates … Portals (IDPs) serving thousands of users, with a preference for experience in Backstage. Design and implement efficient, reusable GitLab CI pipelines across multiple tech stacks. Develop solutions using TypeScript, JavaScript, NodeJS, ReactJS, Python, and Java. Automate deployments using GitLab CI/CD, Terraform, and EKS. Navigate specific change and governance processes to deliver code and changes to the estate. … Coordinate stakeholders and embed continuous improvement practices across engineering teams. Skills & Experience Strong software development background, especially with TypeScript, JavaScript, NodeJS, ReactJS, Python, and Java. Experience with enterprise-scale engineering environments. Familiarity with DevOps practices and performance measurement. Excellent stakeholder coordination and governance capabilities. If you are interested in the role and would like to apply, please click on More ❯

Role: Software Engineer (Java, TypeScript, JavaScript, NodeJS, ReactJS, Python) Location: Remote working with some meetings at offices either in Manchester or London. IR35 status: Outside Length of contract: 5 months initial contract (with a view to possible extension) Overview We are seeking a Software Engineer to support the delivery and maintenance of shared engineering components and templates … Portals (IDPs) serving thousands of users, with a preference for experience in Backstage. Design and implement efficient, reusable GitLab CI pipelines across multiple tech stacks. Develop solutions using TypeScript, JavaScript, NodeJS, ReactJS, Python, and Java. Automate deployments using GitLab CI/CD, Terraform, and EKS. Navigate specific change and governance processes to deliver code and changes to the estate. … Coordinate stakeholders and embed continuous improvement practices across engineering teams. Skills & Experience Strong software development background, especially with TypeScript, JavaScript, NodeJS, ReactJS, Python, and Java. Experience with enterprise-scale engineering environments. Familiarity with DevOps practices and performance measurement. Excellent stakeholder coordination and governance capabilities. If you are interested in the role and would like to apply, please click on More ❯