326 to 350 of 726 ECMAScript Jobs in London

regulated environment Collaborating in an agile, cross-functional team to deliver impactful health solutions What We’re Looking For: 2+ years of professional experience with React.js Strong grasp of JavaScript (ES6+), HTML5, and CSS3 Familiarity with TypeScript, Redux, and component libraries (e.g., Material UI) Experience building accessible apps (WCAG standards knowledge is a plus) Comfortable working with RESTful APIs and More ❯

regulated environment Collaborating in an agile, cross-functional team to deliver impactful health solutions What We’re Looking For: 2+ years of professional experience with React.js Strong grasp of JavaScript (ES6+), HTML5, and CSS3 Familiarity with TypeScript, Redux, and component libraries (e.g., Material UI) Experience building accessible apps (WCAG standards knowledge is a plus) Comfortable working with RESTful APIs and More ❯

Software Engineer/JavaScript/AWS/SaaS/Oracle Simphony Outside IR35 Contract Role Role: Software Engineer Salary: £600 a day Location: Fully Remote Duration: 3 months initial Software Engineer/JavaScript/AWS/SaaS/Oracle Simphony Responsibilities Design, code, test and manage various applications Experience developing SaaS/Software products Debug code Collaborate with engineering team … standards of quality related to code and systems Work closely with front-end developers in building and extending APIs Develop automated tests and conduct performance tuning Skills Experience with JavaScript & Oracle Simphony Experience building & integrating APIs Excellent knowledge of SQL Familiar with AWS or similar Excellent communication skills Knowledge of practices and procedures for full software design life cycle Qualifications … Bachelor's degree in Computer Science or relevant field 5+ years of experience working with JavaScript/Oracle Simphony Experience within the financial sector (bonus) Experience with Gitlab If you believe you are the Software Engineer with experience in JavaScript & Oracle Simphony we are looking for then please do not hesitate to apply or send your cv directly Software Engineer More ❯

have a good understanding of how to break down an implementation of the UI to segregate the business logic responsibilities correctly. The following would be good to have - Vanilla Javascript/Core JavaScript coding, NodeJS, HTML5, CSS3). Key Skills required: Node.JS Development Javascript - variable scoping - Event handling and Event delegation - JSON parsing and looping - Promises - DOM manipulation. HTML - Semantic More ❯

End Developers, 1 Senior Front End Dev and 1 Mid level FE Dev. Role - Front End Developer (looking for both Mid and Senior) Core FE Tech stack - HTML, CSS, JavaScript, TypeScript, React/Redux, Tanstack, UI/UX Salary - 60k to 80k for mid level, 80k to 100k for senior, depending on experience, current package etc. Location - London Paddington … mentality - has worked collaboratively with a Product Engineering team Front End React experience - at least 3 years of expert frontend experience using React ecosystem Very strong core HTML, CSS, JavaScript/TypeScript Longevity (2-3+ years) in at least one of your recent roles, we can't look at people who have never stayed anywhere longer than 2 years More ❯

with stakeholders to gather requirements and translate them into technical solutions Build and maintain integrations with other internal and third-party systems Implement plugins, workflows, Power Automate flows, and JavaScript customisations Ensure system performance, stability, and security are maintained Support the testing, deployment, and documentation of new solutions Provide technical support and guidance to end users and internal teams Keep … suggest improvements Skills and Qualifications Proven experience with Microsoft Dynamics 365 CE (Customer Engagement) Strong knowledge of Power Platform, including Power Automate and Power Apps Proficiency in C#, .NET, JavaScript, and Dynamics SDK Experience with custom workflows, plugins, and web resources Familiarity with Azure integration and DevOps practices Excellent problem-solving and communication skills Experience working in the education sector More ❯

in D365 Microsoft Dynamics 365 - Sales, Service, Field Service, Marketing Experience • Experience in Development/Configuration/solutions evaluation/Validation and deployment • Hands on experience writing plugins, workflows, JavaScript's, dialogs etc. • Excellent Analytical and Communication skills • NET, C#, JavaScript experience a plus/• Working knowledge of CRM's interoperability capability with MS Office, MS Office 365, SharePoint, Azure … and MS BI Stack • C#/VB.net, ADO.Net, XML, T/SQL, JQuery, JavaScript, Web Services, ASP.NET, and Silverlight skills • Experience in leading a Team • PowerApps Preferred • Planning and Prioritization skills • Experience in capturing requirements related to internal/external consulting, documenting, and mapping current business process • Experience in creating requirement specifications based on Architecture/Design/Detailing of More ❯

of a forward-thinking team. What Youll Do: As a key part of our engineering team, youll: Build and maintain scalable full-stack applications using Java (Spring Boot) and JavaScript/TypeScript (React) . Contribute to major projects from day one, working closely with cross-functional teams in a highly collaborative environment. Engage with emerging tools and frameworks, including CI … and public sector projects, enhancing services millions rely on. What Youll Bring: Eligibility for security clearance (UK-based only) Strong Java backend development skills (Spring Boot) Solid experience with JavaScript/TypeScript , ideally with React Hands-on familiarity with GIT, CI/CD , and modern development practices Bonus points for experience in Gov projects , AI tooling , or Langchain Why Join More ❯

Responsibilities Our team values ownership and accountability. You will be responsible for engineering to meet project requirements and following an agile methodology to deliver solutions. Preferred programming languages include JavaScript, PHP, Python, Scala, or Go. Experience with building microservices and APIs is essential. Requirements We seek candidates with a passion for accessibility and cloud-native software development. Bonus points for More ❯

4+ years as a software developer or a solution architect Experience in requirements management, application design and solution development Working experience in a programming language such as C#, Python, JavaScript or TypeScript C#, Python and JavaScript or TypeScript Working experience with Cloud technology Fluency in English and German Preferred Qualifications Experience with Autodesk products, platform services and their APIs Experience 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 ❯

Oracle Apex. Demonstrable experience over many years with latest Oracle APEX versions and previous Oracle technologies. In depth knowledge of PL/SQL and technologies such as HTML, JQuery, Javascript, AJAX, CSS etc. Beneficial to have previous experience developing Oracle Forms and converting them to APEX. Role will include some mentoring of and skills transfer to a small team. It More ❯

almost entirely back-end software. The other CX Products are built on top of Genesys Cloud Contact Centre, and use their APIs, are written using C# .NET Core and JavaScript technologies and significantly enhance our Genesys capabil it ies . All our products are available via the Genesys AppFoundry and some are also available from the Microsoft AppSource marketplaces, as … on experience. All about You You must have: Experience with .NET, C# preferably also with experience of using Postgres and Microsoft SQL databases. Experience with front-end technologies including Javascript Ideally you will also have: Knowledge on how to build and deploy docker containers Some experience of Cloud hosting technologies, particularly using Amazon Web Services i.e AWS ECR/ECS More ❯

Full Stack Software Developer? Proven experience developing full stack applications with C# and .NET Core Experience with Microsoft SQL Server Strong front-end development skills with HTML, CSS, and JavaScript Experience working with Microsoft Azure Knowledge of good software design and secure coding principles Solid understanding of good user interface design What Next? If you’re an experienced Full Stack More ❯

is required and relevant for many entry level programming roles and help you get a step ahead. 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. Therefore, this is an essential addition language in building your programming More ❯

directed learning Support & help other engineers to improve their knowledge, skills and processes through pairing, mentoring and code reviews Technical Skills .NET C# - ideally with experience of .NET 8 JavaScript experience preferred Entity Framework Code-First or other ORM SQL and SQL Server (as a developer rather than administrator) Experience building and maintaining APIs (REST or GraphQL) Azure Qualifications 2+ More ❯

and deliver scalable solutions Identify and resolve software issues across the stack Key Skills & Experience: 7+ years of hands-on full stack development experience Expert-level knowledge of ReactJS , JavaScript , and PHP/Hack Strong proficiency in Python , including automation and scripting Experience with modern software development practices and system architecture Knowledge of SQL and other backend technologies Strong problem More ❯