76 to 100 of 276 ECMAScript Jobs in London

from business problem → solution design → development → release. Debug issues, improve reliability, and raise code quality. Work pragmatically across the stack (Ruby, JavaScript, CSS, SQL). Use AI-assisted/agentic development tools to write and review code, while maintaining high quality. Must haves Strong Ruby and Ruby on Rails experience ...

other Full Stack Engineers on high-impact projects Technical Requirements Recent graduate or up to 1 year of professional experience Familiarity with JavaScript and Next.js (React or React Native experience is a plus) Basic knowledge of Python Understanding of SQL and relational databases Eagerness to learn cloud services (AWS experience ...

experience with modern automation tools such as Selenium or Playwright and testing frameworks like JUnit. Good understanding of web technologies including HTML, CSS, JavaScript and modern frontend frameworks. Experience working with CI/CD pipelines, Jira and agile delivery teams. Active use of AI tools in your engineering workflow, beyond ...

Good knowledge of architecture and implementation of native Android or/and iOS apps, experience with full mobile development life cycle. · Profound expertise in JavaScript, TypeScript, and related frameworks and libraries. · Familiarity with Git for version control and experience working in agile development environments. · Adept problem solver with a history ...

points Hands-on experience with eval frameworks, prompt engineering, or fine-tuning Worked with datasets at any meaningful scale (cleaning, labelling, deduping) Familiarity with JavaScript or Next.js for the moments you cross into product code Some AWS or cloud exposure, even from a side project Something cool you've built ...

operational teams to optimise flow, deliver customer value and modernise our platforms. Our bespoke mortgage system is built using Ruby on Rails, MySQL, JavaScript, and other open-source technologies, with a clear roadmap toward cloud-native evolution. Key responsibilities Lead, coach and inspire a stream-aligned product engineering team, fostering ...

operational teams to optimise flow, deliver customer value and modernise our platforms. Our bespoke mortgage system is built using Ruby on Rails, MySQL, JavaScript, and other open-source technologies, with a clear roadmap toward cloud-native evolution. Key responsibilities Lead, coach and inspire a stream-aligned product engineering team, fostering ...

privacy principles. Working on government or national security projects. Experience with Agile/Scrum methodologies. Familiarity with front-end technologies (HTML/CSS, basic JavaScript). If you are not currently Security Cleared, you will need to be willing and eligible to go through the process. How we will support ...

Qualifications Expert proficiency in Python. Strong experience with other languages such as C++ and JavaScript is a plus. Deep understanding of software development best practices including version control (Git), testing, CI/CD, and containerization. Preferred Experience Experience as a Pipeline Engineer, Software Engineer, or in a similar role ...

well-tested new product features. This role isn't just about coding; it's about influencing product and business impact. Desired Skills & Experience Backend JavaScript/TypeScript/Node.js software engineering experience SASS, DynamoDB, AWS Lambda, and Serverless Framework are all beneficial eCommerce/Shopify experience is a bonus ...

Software Engineers. They are an award winning SaaS Provider for Front Office Trading Systems and Execution Platform working with Java on the back end, JavaScript on the front end and Full Stack Development. What you’ll be doing Lead engineering teams building core Trading Systems and Execution Platforms. Own architecture ...

centre technologies Experience integrating contact centre platforms with CRM systems such as Salesforce or Zendesk Exposure to scripting/programming languages such as Python, JavaScript, or Node.js Proven experience delivering enterprise contact centre or customer experience solutions Strong stakeholder management and communication skills Qualifications Degree in Computer Science, Information Technology ...

days per week in a Canary Wharf office Rate - £490 per day (Inside IR35) Tech Stack - Sharepoint Office 365 Power apps Power Automate HTML, Javascript, CSS Tasks - Working with the team and the wider development team to both grow and to help adopt Agile like methodologies with practical implementation alongside ...

more. Must have for this role: Proficient in Rust development Experience with property-based testing or fuzzing Comfortable with web technology (browsers, HTTP, HTML, Javascript, CSS) Experience that would be a plus: Chrome Devtools Protocol, Playwright, Cypress, or Selenium Formal specification languages (e.g. TLA+ or some LTL) Implementing parsers, type ...

Enterprise level administration and development focused specifically with: CRM infrastructure installation and configuration CRM deployment configuration CRM customization and configuration (Data model, forms, views, JavaScript, C# .NET, plugins, workflows) CRM integration Dynamics CRM Cloud Migration Knowledge in CRM 2015+ build versions and upgrade experience Architectural experience for Dynamics ...

solutions. Requirements: The ideal candidate will have several years' experience in ServiceNow design and development preferably in a consulting environment. Scripting skills such as JavaScript, HTML and XHTML, XML, CSS, AJAX, AngularJS highly advantageous An understanding of Service Management concepts, delivery assurance principals and procedures. A high level of knowledge ...

Shopify Liquid and Online Store 2.0 Experience with Shopify APIs (REST/GraphQL) and third-party integrations Solid front-end skills (HTML, CSS, JavaScript) Track record of improving performance, UX, and conversion Experience with subscription platforms (Recharge, Skio, etc.) Comfortable working as a sole technical contributor Nice to have: Shopify ...

ecosystem. Proven expertise in multiple areas of the ServiceNow platform, including functionality, database structure, developer APIs, and development tools. Proficient in Web Technologies (e.g., JavaScript, SOAP/REST web services, XML & JSON). An open and friendly personality with strong customer-facing skills in both a virtual and face ...

full-stack or frontend-focused engineer Strong understanding of modern frontend development and product-focused UI/UX Highly proficient in TypeScript and modern JavaScript frameworks (ideally Next.js/React) Experience integrating APIs and building scalable web applications Experience with Shopify, headless commerce, or customer-facing e-commerce products Strong ...

ideas from previous sectors such as energy, trading, or fintech into the product What We’re Looking For Strong frontend fundamentals across HTML, CSS, JavaScript, and a modern framework, ideally React A track record of shipping customer-facing products and being able to demonstrate their impact Strong product instinct, with ...

libraries). Experience developing or managing annotation programs and training/evaluation datasets for ML or NLP models. Basic understanding of HTML, CSS, and JavaScript for maintaining task-presenter tools. Prior involvement with distributed data labeling operations. If indicated, please note that years of experience are a guide; we will ...

proficient in crawl audits, international SEO, indexation, internal linking, competitor analysis, and keyword research. A strong understanding of HTML, CSS, and JavaScript is essential, along with the ability to apply UX insights to your strategy. Experience working with APIs is also required. You’ll need a strong data‐driven mindset ...

application and broader technology ecosystem, driving both. Key responsibilities include: Identify and resolve architectural and performance issues. Technical requirements: TypeScript React (Next.js) React Native JavaScript Node.js NestJS Experience with cross‐platform mobile application development. Compensation: Competitive. Role type: Full time. Visa sponsorship: Not provided. #J-18808-Ljbffr ...

critical on this one. For more information on this role, or any other jobs across; Embedded, C++ programming, Embedded Linux, Golang Development, FPGA, Python, Javascript, C#, Electronics, Secure Boot, Power Electronics, Digital Design, Machine Learning, Data Science or Simulation contact us today. ...

remain upgrade‐safe Essential Experience Strong hands‐on experience with Oracle Visual Builder (VBCS) Proven experience working within Oracle Fusion Cloud environments Solid JavaScript, HTML and CSS development skills Experience integrating via REST APIsExposure to Oracle Cloud Infrastructure (OCI) Good understanding of Oracle Cloud data structures #J-18808-Ljbffr ...