76 to 100 of 331 ECMAScript Jobs in London

high availability and data integrity, and solid use of JUnit, TDD, and integration/end-to-end testing. Nice to have: Proven experience in JavaScript or Vue.js for front-end development. Exposure to AWS and DevOps tooling such as Docker, Terraform, Kubernetes, Helm, and Git. Exposure to PHP or Drupal. ...

practical technical solutions 🔹 What We’re Looking For Essential ✔️ 5+ years professional software development experience ✔️ Proven experience working on live production systems ✔️ Full-stack JavaScript/TypeScript (Next.js, Node, APIs, databases) ✔️ Python experience (scripting, services, tooling, data processing) ✔️ Strong refactoring and system-improvement skills ✔️ Comfortable in fast-moving, imperfect environments ...

clearly Apply security, data protection and AI safety principles across all delivered solutions Essential Skills for the AI Engineer: Strong experience with Python plus JavaScript Hands-on experience with AI-assisted development tools Experience building RESTful APIs using frameworks such as Flask or Django Strong SQL capability including PostgreSQL ...

interest in sports (sports trading background not required)* Strong tenure and track record of mastery in a domain Nice to Have Experience with JavaScript frameworks (e.g., React)* Network programming (TCP/UDP)* Multi-threaded application development* Familiarity with version control tools (PlasticSCM, Git, etc.)* Exposure to Windows-based technologies Tech ...

integration. Knowledge of monitoring and observability systems. Understanding of modern digital delivery processes and agile methodologies. Working knowledge of the Atlassian toolset. Experience with JavaScript front-end frameworks and core front-end technologies. Strong understanding of asynchronous programming concepts and associated design considerations. Knowledge of database schema design and query ...

deployment and monitoring. What We’re Looking For Strong production experience with React , TypeScript and Next.js . Excellent skills in HTML5 , CSS3 , and modern JavaScript (ES6+). Proven experience with state‐management libraries (e.g., Redux, Zustand). Solid experience integrating front‐end apps with RESTful APIs, (GraphQL is a bonus ...

technical pre-sales, solutions engineering, or software development within consulting or professional services. Strong knowledge of cloud architectures, APIs, and modern delivery practices Javascript/Typescript React Node JS Excellent communication skills, able to bridge technical and commercial conversations. Ambitious, proactive, and comfortable in fast-paced environments. Fluent English; ability ...

Knowledge of information technology practices and products to provide objective and credible opinions and guidance Experience of Linux/RHEL v6x, 7x and 8x JavaScript, SQL, Java, Python and Unix coding Scripting knowledge AGILE JIRA Communicate with impact and empathy and adapt style to suit the situation OpenText Service Manager ...

Series B) Led technical delivery of 2+ substantial features end-to-end (0 production), including architecture decisions Technical Skills: Expert-level TypeScript/JavaScript and modern frameworks (Next.js, React, or equivalent) Strong database skills (Postgres, MySQL) - can design schemas, optimize complex queries, debug performance issues independently Solid DevOps foundation ...

place you'll thrive Regular Mario Kart action! To be successful, you will... Have experience with React/NodeJS Have expertise in Typescript/JavaScript, with proven experience in development role(s) Have exceptional problem-solving abilities, proven in diagnosing and fixing complex technical issues Have excellent communication skills, able ...

technical experience. Must-have 3+ years of professional software engineering experience building and shipping production systems 3+ years with modern web technologies (TypeScript/JavaScript, React, Node.js) 2+ years of experience with AWS, specifically serverless Experience building and deploying scalable backend systems and APIs Comfortable working across the full stack ...

DevOps testing practices and CI/CD pipeline integration. Bonus points if you have: Experience with automation tools such as Playwright (TypeScript/JavaScript) or Cypress. Experience with cloud platforms, such as Azure DevOps or AWS. Familiarity with version control systems, such as Git or GitHub. Experience working in football ...

Stack Developer within the Public Sector. Active SC and NPPV3 Clearance. Senior-level expertise in either Java/Spring (Boot, Data JPA, Security) or JavaScript/TypeScript with React; mid-level experience acceptable in the other Proven experience delivering high-quality, cross-functional solutions using microservices and micro-frontend architectures ...

databases. CI/CD experience. Experience in API design and building system integrations. Microsoft Dynamics integration (highly desirable). Python and/or JavaScript experience (desirable). Excellent communication skills and confidence in working remotely. This C# Developer role is an immediate start, with interview slots available next week. ...

databases. CI/CD experience. Experience in API design and building system integrations. Microsoft Dynamics integration (highly desirable). Python and/or JavaScript experience (desirable). Excellent communication skills and confidence in working remotely. This C# Developer role is an immediate start, with interview slots available next week. ...

least a BSc level or higher in Computer Science or Mathematics from a Russell Group University or equivalent. Desirable skills: HTML5, CSS, JavaScript Multi-threaded application development Understanding of Windows technologies If you feel you have the skills and experience required for this opportunity, please contact Oliver Wilson ...

from development through live operation Continuously improving how software is delivered What we’re looking for Strong software engineering fundamentals Experience with TypeScript/JavaScript and/or backend language s such as Python or Java Cloud experience (AWS preferred) Containerisation and modern CI/CD exposure Security-conscious mindset ...

platforms or applications. Knowledge of software development best practices, including version control, testing, and deployment. Proficiency in relevant programming languages (e.g., Java, Python, or JavaScript). Excellent problem-solving skills and attention to detail. Strong communication skills and ability to work collaboratively in a team. Preferred Qualifications: Experience with other ...

frontend SPA/PWA interfaces - Mentor developers and support best practice across the engineering team The Person: - Strong experience with Laravel, PHP, and modern JavaScript frameworks such as Vue and TypeScript - Solid understanding of application architecture, performance optimisation, and secure coding practices - Experience working with AWS services and containerised deployment ...

integration. Knowledge of monitoring and observability systems. Understanding of modern digital delivery processes and agile methodologies. Working knowledge of the Atlassian toolset. Experience with JavaScript front-end frameworks and core front-end technologies. Strong understanding of asynchronous programming concepts and associated design considerations. Knowledge of database schema design and query ...

Role: Senior Product Engineer (Fullstack) Salary/Package: £90k-£140k + Equity Options Company Sector: AI Start Up Experience Level: Senior (5+ years) Tech: JavaScript, TypeScript, Node.js, React.js, AWS Location: Central London Working Arrangement: 5 days a week in the office (flex hours) Product Engineer (Full Stack) Help shape ...

Exposure to CEP engines (Esper) or other live stream aggregation technologies. Familiarity with authentication, authorization, and endpoint security. Experience with C#/HTML/JavaScript and AWS/Terraform/CI-CD pipelines. Why Join CMC Markets? Work on high-performance trading systems that have global impact. Collaborate with ...

their needs into technical solutions.Present your innovative solutions confidently to key stakeholders.We're Looking For Someone Who Has:Proficiency in front-end technologies (e.g., JavaScript, React).Strong skills in Python (Pandas, APIs, etc.).Experience with version control systems, preferably Git.Understanding of cloud services and deployment (e.g., Azure).Familiarity with Agile ...

into technical solutions. Present your innovative solutions confidently to key stakeholders. We're Looking For Someone Who Has: Proficiency in front-end technologies (e.g., JavaScript, React). Strong skills in Python (Pandas, APIs, etc.). Experience with version control systems, preferably Git. Understanding of cloud services and deployment (e.g., Azure ...

vulnerabilities, working directly with software engineers to support remediation. Ability to read and interpret code in at least one common programming language (e.g., C#, JavaScript, Python). Knowledge of CI/CD pipelines and the integration of security tooling into developer workflows (e.g., GitHub Actions, Azure DevOps). Strong understanding ...