351 to 375 of 1,015 ECMAScript Jobs in London

design, computer science, information sciences, psychology, or human-computer interaction is preferred.Hands-on experience with modern front-end technologies (e.g., HTML/CSS, JavaScript/TypeScript, React) and evolving design systems.Experience building AI and agentic experiences, and you are already leveraging AI to speed up and augment your ...

design, computer science, information sciences, psychology, or human-computer interaction is preferred. Hands-on experience with modern front-end technologies (e.g., HTML/CSS, JavaScript/TypeScript, React) and evolving design systems. Experience building AI and agentic experiences, and you are already leveraging AI to speed up and augment your ...

5+ years of experience leading development teams, with a track record of delivering complex, high-impact technical solutions.Are proficient in web technologies (e.g., TypeScript, JavaScript, React, Node.js) and familiar with headless CMS platforms (preferably Contentful).Excel at optimizing performance and scalability, with experience handling complex content structures and large datasets.Balance ...

production. Strong system design is core to how you work. Roughly 80-90% of the work is backend; working on the frontend (React/Javascript) is a welcome plus, not a requirement Enterprise Domain Curiosity: You are interested in the hard problems of B2B SaaS Identity - authentication (SSO/OIDC ...

backend, and SRE to ship cohesive end-to-end experiences across team boundaries.What You'll BringExperience building and shipping production-quality software.Strong TypeScript/JavaScript skills and significant frontend experience in production codebases.Solid experience with React and modern frontend tooling (such as Tailwind).Comfort collaborating with designers in Figma ...

production. Strong system design is core to how you work. Roughly 80-90% of the work is backend; working on the frontend (React/Javascript) is a welcome plus, not a requirement Enterprise Domain Curiosity: You are interested in the hard problems of B2B SaaS Identity - authentication (SSO/OIDC ...

just tolerant of it; unfamiliar code, half-formed problems, and systems you've never seen don't throw you off.You know a scripting language (JavaScript, Python, or similar) and instinctively automate anything you've done twice.Building on a platform that moves real people's money; with the security and regulatory ...

tolerant of it; unfamiliar code, half-formed problems, and systems you've never seen don't throw you off. You know a scripting language (JavaScript, Python, or similar) and instinctively automate anything you've done twice. Building on a platform that moves real people's money; with the security ...

Strong presentation skills, with the ability to articulate design rationale clearly to diverse stakeholders Technical skills Comfortable working with front-end code (HTML, CSS, JavaScript) to prototype and build working interactions directly from design Skilled in AI-assisted coding tools and workflows, using them to accelerate build without compromising quality ...

production. Strong system design is core to how you work. Roughly 80-90% of the work is backend; working on the frontend (React/Javascript) is a welcome plus, not a requirement Enterprise Domain Curiosity: You are interested in the hard problems of B2B SaaS Identity - authentication (SSO/OIDC ...

production. Strong system design is core to how you work. Roughly 80-90% of the work is backend; working on the frontend (React/Javascript) is a welcome plus, not a requirementEnterprise Domain Curiosity: You are interested in the hard problems of B2B SaaS Identity - authentication (SSO/OIDC), authorization ...

business growth initiatives.Strong presentation skills, with the ability to articulate design rationale clearly to diverse stakeholdersTechnical skillsComfortable working with front-end code (HTML, CSS, JavaScript) to prototype and build working interactions directly from designSkilled in AI-assisted coding tools and workflows, using them to accelerate build without compromising qualityComfortable working ...

table queries, joins, filters, transformations, and validation checks.You are fluent in at least one implementation language used in enterprise delivery - Apex, Java, Python, or JavaScript/TypeScript - and are willing to learn the others as needed.You understand data modeling, APIs, integration patterns, batch and streaming processing, and the practical differences ...

hiring a Senior Software Engineer to design, develop, and enhance scalable software for server-side and Android platforms. You will work with Java, JavaScript, HTML5, CSS, SQL, Linux, Git, and Gradle, collaborating with stakeholders and leadership through the full software lifecycle. The ideal candidate has strong Java expertise, Android ...

solutions. You will mentor juniors, conduct pair programming, and help implement best practices across development environments. You will work with Python, Java, TypeScript/JavaScript, and SQL, building agentic AI workflows, and ensuring robust CI/CD delivery in a #J-18808-Ljbffr ...

stack applicationsExcellent communication skillsWillingness to pick up and learn new technologies and frameworks Nice to have:Rust experienceExperience with highly available distributed systemsExperience with Javascript/React JS FrontendExperience working with large datasets ...

technologies and develop with usAbility to work well in a fast-paced environmentNice to Have:Experience with any of C++, Rust, KDB+/q, JavaScript/TypeScript/ReactExperience with database management systems and related technologies such as SQLExperience working in an investment or financial business is useful ...

Bring Proven experience developing within Microsoft Dynamics 365 (CE/CRM). Strong skills in Power Apps, Power Automate, and Dataverse. Proficiency in C#, JavaScript, and Dynamics SDK/custom connectors. Understanding of Azure functions, APIs, and integration patterns. Experience working in agile, multidisciplinary environments. Awareness of government data ...

overseeing a number of projects of differing scales. These could be personal or in business. Analyst Developers must have: Commercial Software Development ExperienceHTML/JavaScript/SQL/JSP/Web Services (SOAP)Previous experience with automated software testing tools would be an advantage. An interest in FinanceThis role suits ...

successfully overseeing a number of projects of differing scales. These could be personal or in business.Analyst Developers must have:Commercial Software Development ExperienceHTML/JavaScript/SQL/JSP/Web Services (SOAP)Previous experience with automated software testing tools would be an advantage.An interest in FinanceThis role suits someone ...

best training and development packages in the market, all inclusive.My client is based near Kingston in LondonASP.NET MVC, razor, c#, sql, mvc, .net, javascript, greenfield, , data, analytics, api, jquery ...

overseeing a number of projects of differing scales. These could be personal or in business. Analyst Developers must have: Commercial Software Development ExperienceHTML/JavaScript/SQL/JSP/Web Services (SOAP)Previous experience with automated software testing tools would be an advantage. An interest in FinanceThis role suits ...

best training and development packages in the market, all inclusive. My client is based near WimbledonASP.NET MVC, razor, c#, sql, mvc, .net, javascript, greenfield, , data, analytics, api, jquery ...

offer. Java/Hybris Developers Must have: Serious commercial exposure to modern Java including Spring MVC and Spring. HYBRISSQLREST/SOAP API'sIdeally TDDIdeally Javascript MVC frameworks like AngularJS and EmberJSnode.js would be a plusContinuous integration experience would be a plusThis role is ideal for someone looking to further their ...

best training and development packages in the market, all inclusive.My client is based near Kingston in LondonASP.NET MVC, razor, c#, sql, mvc, .net, javascript, greenfield, , data, analytics, api, jquery ...