2,601 to 2,625 of 2,836 ECMAScript Jobs

looking for structured a structured development plan, training on MVVM frameworks and a stable career. The Role: Developing new features across the full stack (C#, .NET, WebAPI/REST, JavaScript and SQL) Training on building responsive UI's with an MVVM framework See through the full product lifecycle Working in a Swansea based office 3 days a week, 2 days … .NET and C# Knowledge Commutable to Swansea Job Reference: BBBH 22402 Software, Dev, Developer, Junior, Grad, Graduate, .NET, Framework, C#. Frontend, Backend, End, Stack, Full, UI, Design, MVVM, React, JavaScript, Swansea, Wales, Nailsea If you are interested in this role, click 'apply now' to forward an up-to-date copy of your CV. We are an equal opportunities employer and More ❯

looking to build Enterprise software for globally recognised business that offers stability and great benefits. The Role: Developing new features across the full stack (C#, .NET, WebAPI/REST, JavaScript and SQL) Building responsive UI's with an Knockout.JS See through the full product lifecycle Progression opportunities to senior positions and tailored development plans Working in a Swansea based office … and MVVM Framework knowledge Commutable to Swansea Job Reference: BBBH 22403 Software, Dev, Developer, Vue, Knockout, SAAS, .NET, Framework, C#. Frontend, Backend, End, Stack, Full, UI, Design, MVVM, React, JavaScript, Swansea, Wales, Nailsea If you are interested in this role, click 'apply now' to forward an up-to-date copy of your CV. We are an equal opportunities employer and More ❯

looking to build Enterprise software for globally recognised business that offers stability and great benefits. The Role: Developing new features across the full stack (C#, .NET, WebAPI/REST, JavaScript and SQL) Building responsive UI's with an Knockout.JS See through the full product lifecycle Progression opportunities to senior positions and tailored development plans Working in a Swansea based office … and MVVM Framework knowledge Commutable to Swansea Job Reference: BBBH 22403 Software, Dev, Developer, Vue, Knockout, SAAS, .NET, Framework, C#. Frontend, Backend, End, Stack, Full, UI, Design, MVVM, React, JavaScript, Swansea, Wales, Nailsea If you are interested in this role, click 'apply now' to forward an up-to-date copy of your CV. We are an equal opportunities employer and More ❯

looking to build Enterprise software for globally recognised business that offers stability and great benefits. The Role: Developing new features across the full stack (C#, .NET, WebAPI/REST, JavaScript and SQL) Building responsive UI's with an Knockout.JS See through the full product lifecycle Progression opportunities to senior positions and tailored development plans Working in a Swansea based office … .NET, C# and MVVM Framework knowledge Commutable to Swansea Job Reference: BBBH22403aSoftware, Dev, Developer, Vue, Knockout, SAAS, .NET, Framework, C#. Frontend, Backend, End, Stack, Full, UI, Design, MVVM, React, JavaScript, Swansea, Wales, NailseaIf you are interested in this role, click 'apply now' to forward an up-to-date copy of your CV.We are an equal opportunities employer and welcome applications More ❯

performance. Key Responsibilities: Lead performance testing strategy, planning, and execution using k6 (both open-source and cloud versions Design and develop robust, reusable, and parameterized performance test scripts in JavaScript (k6 scripting Simulate high-load scenarios, stress tests, and soak tests for APIs, web applications, and microservices. Analyze test results to identify bottlenecks and performance issues across front-end, backend … stakeholders. Required Skills and Qualifications: 7+ years of experience in performance testing and engineering. Strong hands-on experience with k6 including scripting, scenario modeling, and result interpretation. Proficient in JavaScript for writing k6 test scripts. Experience with Grafana, Prometheus, InfluxDB, or other APM tools for monitoring and metrics. Good understanding of HTTP, REST, WebSockets, and microservices architectures. Solid knowledge of More ❯

looking to build Enterprise software for globally recognised business that offers stability and great benefits. The Role: Developing new features across the full stack (C#, .NET, WebAPI/REST, JavaScript and SQL) Building responsive UI's with an Knockout.JS See through the full product lifecycle Progression opportunities to senior positions and tailored development plans Working in a Swansea based office … C# and MVVM Framework knowledge Commutable to Swansea Job Reference: BBBH22403a Software, Dev, Developer, Vue, Knockout, SAAS, .NET, Framework, C#. Frontend, Backend, End, Stack, Full, UI, Design, MVVM, React, JavaScript, Swansea, Wales, Nailsea If you are interested in this role, click 'apply now' to forward an up-to-date copy of your CV. We are an equal opportunities employer and More ❯

improvement across the wider Digital Services team.Key Responsibilities:- Design, build and maintain scalable solutions within Salesforce Marketing Cloud.- Develop and enhance platform features using technologies such as AmpScript, SQL, JavaScript, HTML and API integrations.- Lead coding standards, testing approaches and quality assurance practices to ensure robust and maintainable solutions.- Collaborate with colleagues across technology, data, and marketing to translate user … shared learning and best practice.Candidate ProfileEssential Experience & Skills:- Strong hands-on experience developing within Salesforce Marketing Cloud.- Proficiency in programming and scripting relevant to the platform (e.g., AmpScript, SQL, JavaScript, HTML/CSS).- Demonstrated ability to design and implement integrations and data flows.- Understanding of software design principles, testing methods and secure coding practices.- Ability to analyse requirements and More ❯

across the wider Digital Services team. Key Responsibilities: - Design, build and maintain scalable solutions within Salesforce Marketing Cloud. - Develop and enhance platform features using technologies such as AmpScript, SQL, JavaScript, HTML and API integrations. - Lead coding standards, testing approaches and quality assurance practices to ensure robust and maintainable solutions. - Collaborate with colleagues across technology, data, and marketing to translate user … and best practice. Candidate Profile Essential Experience & Skills: - Strong hands-on experience developing within Salesforce Marketing Cloud. - Proficiency in programming and scripting relevant to the platform (e.g., AmpScript, SQL, JavaScript, HTML/CSS). - Demonstrated ability to design and implement integrations and data flows. - Understanding of software design principles, testing methods and secure coding practices. - Ability to analyse requirements and More ❯

open-source technologies to create scalable, high-performance applications that power real-time solutions. Hands-On Development - Work on new projects from the ground up, using technologies like Java, JavaScript, JQuery and SQL. Team Collaboration - Join a supportive and skilled team where you can build your expertise and contribute to meaningful projects. Role Responsibilities: Develop, test, and maintain software applications … Most Remote working. To apply, click apply now or send your CV to Matthew.Leach @ circlerecruitment.com Keywords: Software Developer/Java/SQL/Linux/Spring/jQuery/JavaScript/Warrington/Manchester/Liverpool/Preston Circle Recruitment is acting as an Employment Agency in relation to this vacancy. Earn yourself a referral bonus if you refer somebody More ❯

for resolution Ensure test environments are maintained and reflective of production settings Advocate for and implement shift-left and test-first practices Collaborate with developers working in Java and JavaScript to ensure test coverage and code quality Contribute to defining and evolving quality assurance standards and practices across the team Ensure testing processes meet compliance and governance standards relevant to … sponsor) Proven experience as a Test Engineer or QA in agile delivery environments Strong automation testing experience (not just manual testing) Experience working with development teams using Java or JavaScript Familiarity with integrating test automation into CI/CD pipelines (e.g., GitLab CI, Jenkins, GitHub Actions) Experience with non-functional testing , including: Performance testing (e.g., JMeter, Gatling), Security testing (e.g. More ❯

Postgres and NoSQL databases. Furthermore, the candidate is required to have broad programming experience across a range of modern languages and frameworks, specifically including Python, Typescript, Golang, Node JS, JavaScript, React, and JSON. Lastly, you must have experience in leading either a team or projects and possess some knowledge of relevant industry standards like GDPR. This is a fantastic opportunity … design, and project/team leadership. Must have Cloud & DevOps Skills in AWS, Terraform, CI/CD, Postgres, and NoSQL. Broad Programming Proficiency including Python, Typescript, Golang, Node JS, JavaScript, and React. Proficiency in System Security (penetration protection, access controls) and knowledge of standards like GDPR. A background within a similar position such as IT Architect, Technical Architect, Platform Architect More ❯

Postgres and NoSQL databases. Furthermore, the candidate is required to have broad programming experience across a range of modern languages and frameworks, specifically including Python, Typescript, Golang, Node JS, JavaScript, React, and JSON. Lastly, you must have experience in leading either a team or projects and possess some knowledge of relevant industry standards like GDPR. This is a fantastic opportunity … design, and project/team leadership. Must have Cloud & DevOps Skills in AWS, Terraform, CI/CD, Postgres, and NoSQL. Broad Programming Proficiency including Python, Typescript, Golang, Node JS, JavaScript, and React. Proficiency in System Security (penetration protection, access controls) and knowledge of standards like GDPR. A background within a similar position such as IT Architect, Technical Architect, Platform Architect More ❯

Postgres and NoSQL databases. Furthermore, the candidate is required to have broad programming experience across a range of modern languages and frameworks, specifically including Python, Typescript, Golang, Node JS, JavaScript, React, and JSON. Lastly, you must have experience in leading either a team or projects and possess some knowledge of relevant industry standards like GDPR.This is a fantastic opportunity to … design, and project/team leadership. Must have Cloud & DevOps Skills in AWS, Terraform, CI/CD, Postgres, and NoSQL. Broad Programming Proficiency including Python, Typescript, Golang, Node JS, JavaScript, and React. Proficiency in System Security (penetration protection, access controls) and knowledge of standards like GDPR. A background within a similar position such as IT Architect, Technical Architect, Platform Architect More ❯

Senior DevOps Architect Remote Office Our team embraces a core set of values that drive our business: integrity, customer focus, value creation, respect, innovation, and teamwork. Our security, technology and information management and governance professionals are passionate about their work More ❯

Designing and refining complex front-end architectures for real-time data visualization Working in a culture where engineering excellence and code quality are non-negotiable Tech Stack: Languages: TypeScript, JavaScript (ES6+) Frameworks: React, Redux (or similar) Tooling: Webpack, Babel, Jest, ESLint, Git Bonus: Experience with WebSockets, performance profiling, or custom charting libraries (e.g., D3.js, Highcharts) What They’re Looking For … Strong experience with React and modern JavaScript/TypeScript Deep understanding of front-end architecture, performance tuning, and scalable component design Experience in fast-paced environments (finance, trading, gaming, or top-tier tech) Passion for clean, maintainable code and UI craftsmanship Why Join? Collaborate with some of the sharpest minds in trading and technology Contribute to software that drives real More ❯

Designing and refining complex front-end architectures for real-time data visualization Working in a culture where engineering excellence and code quality are non-negotiable Tech Stack: Languages: TypeScript, JavaScript (ES6+) Frameworks: React, Redux (or similar) Tooling: Webpack, Babel, Jest, ESLint, Git Bonus: Experience with WebSockets, performance profiling, or custom charting libraries (e.g., D3.js, Highcharts) What They’re Looking For … Strong experience with React and modern JavaScript/TypeScript Deep understanding of front-end architecture, performance tuning, and scalable component design Experience in fast-paced environments (finance, trading, gaming, or top-tier tech) Passion for clean, maintainable code and UI craftsmanship Why Join? Collaborate with some of the sharpest minds in trading and technology Contribute to software that drives real More ❯

Full Stack Python/JavaScript Developer - London - £60k 1-2 days per week in office My prestigious financial services client is looking to expand their digital transformation team and require an experienced Full Stack Developer with strong Python & JavaScript to join them working across a range of new initiatives Core skills across Python and JavaScript with experience in Django and More ❯

alongside a small, highly skilled team of software and web developers. You will have the opportunity to utilise your expertise in Front End development Ideal Skills React Native Modern JavaScript frameworks Core frontend technologies - JavaScript/TypeScript/HTML/CSS Relational databases - MySQL/Postgres Strong problem-solving skills Strong communication skills Desire to learn and advance yourself and More ❯

alongside a small, highly skilled team of software and web developers. You will have the opportunity to utilise your expertise in Front End development Ideal Skills React Native Modern JavaScript frameworks Core frontend technologies - JavaScript/TypeScript/HTML/CSS Relational databases - MySQL/Postgres Strong problem-solving skills Strong communication skills Desire to learn and advance yourself and More ❯

We are looking for a skilled JavaScript (React) developer to work for our client, an innovative company whose platform is used many people each day. You willl become a member of the client s small Whizzystack development team working from Noida. You will be responsible for implementing the frontend components and architecture for numerous features. The client values expertise in … these features. Architect efficient and reusable front-end systems that drive complex web applications Identify and resolve performance and scalability issues Who You Are (Experience & Skills) 3+ years of JavaScript experience, including concepts like asynchronous programming, closures, types, and ES6. Experience with modern JavaScript libraries and tooling (ES6, React, Redux, etc.) 3+ years of HTML/CSS experience, including concepts More ❯

WordPress/PHP Developer £60,000 - £70,000 Hybrid - 3 days a week, central London (WordPress, PHP, JavaScript,) Would you like the opportunity to work with one of the leading worldwide SaaS organisation, working with WordPress, PHP and JavaScript? The Company A market leading SaaS company with a global presence, with high-end offices in central London You will be … work in the office three times a week with the rest of the team. Requirements: Strong WordPress/PHP experience - any framework (Symfony, Laravel, Zend, etc) Strong knowledge of JavaScript - (React, Vue.JS, Angular, etc) HTML/CSS Understanding of TDD and Gutenberg would be a bonus Experience of working in an agile environment This role requires you to work from … WordPress/PHP developer, this is a unique opportunity to join a market leading company with the added bonus of continuing to grow your skillset in PHP, WordPress and JavaScript, with an outstanding benefits package on offer. More ❯

WordPress/PHP Developer £60,000 - £70,000 Hybrid - 3 days a week, central London (WordPress, PHP, JavaScript,) Would you like the opportunity to work with one of the leading worldwide SaaS organisation, working with WordPress, PHP and JavaScript? The Company A market leading SaaS company with a global presence, with high-end offices in central London You will be … work in the office three times a week with the rest of the team. Requirements: Strong WordPress/PHP experience - any framework (Symfony, Laravel, Zend, etc) Strong knowledge of JavaScript - (React, Vue.JS, Angular, etc) HTML/CSS Understanding of TDD and Gutenberg would be a bonus Experience of working in an agile environment This role requires you to work from … WordPress/PHP developer, this is a unique opportunity to join a market leading company with the added bonus of continuing to grow your skillset in PHP, WordPress and JavaScript, with an outstanding benefits package on offer. More ❯

PHP Developer £60,000 - £70,000 Hybrid - 3 days a week, central London (WordPress, PHP, JavaScript,) Would you like the opportunity to work with one of the leading worldwide SaaS organisation, working with WordPress, PHP and JavaScript? The Company A market leading SaaS company with a global presence, with high-end offices in central London You will be joining an … a week with the rest of the team. Requirements: Strong PHP experience - any framework (Symfony, Laravel, Zend, etc) Have experience/interest in working with WordPress Strong knowledge of JavaScript - (React, Vue.JS, Angular, etc) HTML/CSS Understanding of TDD and Gutenberg would be a bonus Experience of working in an agile environment This role requires you to work from … As a PHP developer, this is a unique opportunity to join a market leading company with the added bonus of continuing to grow your skillset in PHP, WordPress and JavaScript, with an outstanding benefits package on offer. More ❯

in financial services would be beneficial. You’ll join a small, high-performing team that’s heavily invested in modern technology, working across the full stack with .NET, C#, JavaScript, and SQL Server. What you’ll be doing initially Designing and implementing new features for their SaaS platform Working primarily with C# and .NET Contributing to front-end JavaScript and … development Applying test-driven development practices What we’re looking for 2+ years’ experience as a .NET Developer Strong knowledge of C# and .NET Comfortable working full stack with JavaScript (modern framework experience a plus) and SQL Server A genuine interest in product development, solution design, or technical analysis Excellent communication skills and a collaborative mindset What’s in it More ❯

Trading UI Engineer – Front Office JavaScript, React, typescript, NodeJS, Tailwind, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API. Real Time Trading Software, UI Development Perm Role – London – Onsite. £80000 - £100000 plus bonus Harrington Starr has partnered up with a Global Investment Bank in the City of London who are looking to hire a Senior UI Trading Software Developer … high profile role for a Multi Asset Trading Team within a Front Office environment. As the Senior Trading UI Developer, you will have extensive experience of working with the JavaScript Framework including ES7 and HTML and CSS. You will be working directly with Portfolio Managers, Sales Traders and Quants and end users where you will be responsible for specing out … designing and developing of UI screens for the users. This will require you to have client facing experience as well as low levy programming with JavaScript and React Development experience. Their systems cover all asset classes from FX, Fixed Income, Interest Rates and Commodities including derivative products although this knowledge is not essential but would be advantageous. The application is More ❯