JavaScript Jobs in London

1 to 25 of 880 JavaScript Jobs in London

Lead Salesforce Technical Architect

London, England, United Kingdom
Viqu Limited
release management, with a preference for Gearset. - Apex Development: Extensive development experience in Apex VF Controllers and Triggers. - Frontend Development: Experience with VisualForce, XML, Javascript, Aura Components, Salesforce CLI, and HTML. - Additional Tools: Understanding of Service Contracts, Docusign, CPQ, and Conga. - Flow Creation: Skilled in creating and implementing complex Flows more »
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Java Software Engineer

london, south east england, United Kingdom
Valcon
the essential experiences Experience with building systems using FIX Protocol. Senior-level experience with Java. Senior level experience with a Scripting language such as Javascript or Python. Experience with version control systems eg GitLab, GitHub Developing software using Agile methodologies. Level 3 Support for Production systems. Desired Broking/Trading more »
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Senior Software Engineer, Connectivity

london, south east england, United Kingdom
Selby Jennings
on experience integrating digital asset exchanges into trading platforms, including API authentication, data normalization, and error handling. Proficiency in programming languages such as Python, JavaScript, or Go for scripting and automation tasks. Previous experience working in the cryptocurrency or fintech industry is required. Strong problem-solving skills and attention to more »
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Full Stack Engineer

london, south east england, United Kingdom
Hybrid / WFH Options
Hays
of UI design tools (e.g. Adobe XD) React experience designing and developing UIs to collect and display analytical data Good knowledge of HTML, CSS, Javascript, Typescript and React.js Development and documentation of Web APIs (e.g. Swagger, Open API) Wider personal background: Good interpersonal skills and the ability to communicate about more »
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Microsoft Dynamics 365 Managed Services Consultant

london, south east england, United Kingdom
Version 1
Qualifications Good knowledge of the MS Dynamics platform and core technologies (Dynamics 365/CRM). Clear knowledge of Microsoft stack such as .NET, JavaScript, ASP.NET, MVC, C# .NET for Plugins and custom workflows, Integrations using .NET. Power Platform experience is preference. Client facing experience. D365 CS experience. Experience working more »
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Senior Frontend Developer

london (edgware), south east england, United Kingdom
Premier Group Recruitment
you. Senior Frontend Developer role requires office working requirements of three days a week in their Edgware/North London offices. Essential Skills: React, JavaScript, HTML, CSS, Typescript, AWS. Bonus Skills : React Native, Vue, Bootstrap, Typescript. Minimum 5 years in development and fully confident with SDLC. Good stakeholder management skills. more »
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Software Engineer

london, south east england, United Kingdom
ToffeeX
other areas as needs arise. 4+ years of experience working on medium or large software projects. Ideally this will be with Python, ReactJS/JavaScript, and/or C++. Experience deploying serverless applications on the Cloud, ideally on AWS. Customer focused, with the ability to translate complex domain concepts into more »
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Software Engineer

london, south east england, United Kingdom
Hybrid / WFH Options
SR2 | Socially Responsible Recruitment | Certified B Corporation™
network: 1. Coffee with recruiter ☕ 2. In-office technical interview 3. Meet the Co-founders and team 3. Offer! 😍 Roles: x2 Fullstack roles Tech: Javascript, React, Node, Next, AWS, Lambda Salary: £60,000 - £70,000 Location: London - hybrid (flexible office working) Immediately interviewing! If you are interested apply with your more »
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QA Engineer - Permanent - London/Remote - £60-80,000 + Equity

london, south east england, United Kingdom
Hybrid / WFH Options
Saffron QA
or numerical skills. Experience of manual, exploratory and automation testing, working in Agile teams. Experience of programming in at least one language, ideally Typescript, JavaScript or Python. Experience of Playwright, Cypress or Webdriver.io Strong stakeholder management and communication skills and the ability to push back as and when required. The more »
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Trade Support Specialist

London Area, United Kingdom
Osmii
Support from Office Experience with building systems using FIX Protocol. Senior-level experience with Java. Senior level experience with a scripting language such as Javascript or Python. Experience with version control systems e.g. GitLab, GitHub Developing software using Agile methodologies. Level 3 Support for Production systems. more »
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Backend Engineer (Node.JS)

london, south east england, United Kingdom
Emma - we are hiring!
matters is speed. If we had to compare ourselves to someone, we like to think we would be Bolt. About you: You are a Javascript developer with at least 2 years’ experience. You are fast and love to deliver incredible code. You can reduce complex problems to simple solutions. You more »
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Data Engineer

london, south east england, United Kingdom
Hybrid / WFH Options
Agora Talent
repositories. What’s nice to have: • Prior early-stage B2B SaaS experience involving client-facing projects • Experience in front-end development and competency in JavaScript • Knowledge of API development • Familiarity with Airflow, DBT, Databricks • Experience working with Enterprise Resource Planning (e.g. Oracle, SAP) and CRM systems. If this role sounds more »
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Full Stack Engineer (Java/React)

london (city of london), south east england, United Kingdom
Cornwallis Elt
Fullstack Java/React Developer – JavaScript, TypeScript, ReactJS, Cypress, Java, SpringBoot, REST APIs, User Interface, AWS, Fixed Income, Credit, Clearing, Post-Trade, Financial Services, City of London *£840 per day via umbrella* A Senior Fullstack Developer experienced in Java and ReactJS is urgently sought after by a global financial services … different business lines. As a Senior Fullstack Engineer, you will undertake a mixture of server-side development in Java & SpringBoot and frontend development using JavaScript and ReactJS, noting that the role will be more frontend leaning. This will involve building micro front-end services, integrated via REST API for the … tools and services on the wider platform itself. To be successful, you will demonstrate strong skills in the following: Frontend/UI engineering in JavaScript and ReactJS with experience of building responsive micro frontends. Server-side engineering in Java, and the building of SpringBoot microservices Practical experience of testing, preferably more »
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Lead Frontend Developer

london, south east england, United Kingdom
Hybrid / WFH Options
Revoco
engineering. Create a truly wonderful user experience. What you'll need as a Frontend Software Engineer: Experience with the relevant full stack coding languages - JavaScript, React, Next, TypeScript, Go/Golang, and Node. Cloud experience - GCP (ideally), AWS, or Azure. A passion for making a difference and saving the planet. … the latest tech hardware, so you'll have all the resources needed to excel in your role. 🐱‍💻 Tech - Modern stack including GCP services, TypeScript, JavaScript, Next, React, Go, Node, Terraform, and Docker. If you are a Frontend Software Engineer focused on Full Stack Development with experience working with data heavy … want to work on something that truly matters. Please apply to learn more. Sadly, we can't offer Visa Sponsorship. GCP | Start-Up | React | JavaScript | Next | Go | Terraform | Docker | Greentech | Climate | Sustainability | Frontend | UI more »
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Senior Full Stack Engineer

london, south east england, United Kingdom
Halzak
Collaborate with cross-functional teams to design and develop high-performance front-end and back-end components using modern technologies such as React, Node.js, JavaScript and TypeScript Build and maintain RESTful APIs to facilitate seamless integration with third-party services and databases Implement best practices, enhance user experience, and optimise … the team What They Value Several years of professional experience as a Software Engineer, with a proven track record of success Strong proficiency in JavaScript, React, and Node.js, with experience in live projects Commitment to delivering excellence as an Individual Contributor (IC) Software Engineer Hands-on experience in writing and more »
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Software Engineer Parttime

london, south east england, United Kingdom
Hybrid / WFH Options
Opus Recruitment Solutions
fields of the metaverse, Web3, and blockchain. Troubleshoot and debug complex software issues, ensuring optimal performance and reliability. Requirements: Proficiency in Java, Python, and JavaScript, with a strong understanding of software development principles and best practices. Experience working with APIs to integrate software systems and services. Familiarity with the concepts … Qualifications: Previous experience developing applications for the metaverse, Web3 platforms, or blockchain solutions. Knowledge of popular frameworks and libraries in the Java, Python, and JavaScript ecosystems. Familiarity with agile development methodologies. Contributions to open-source projects or active participation in developer communities. Benefits: Opportunity to work on innovative projects at more »
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Senior Fullstack Developer (React/Node.js) - £95k

london (city of london), south east england, United Kingdom
Hybrid / WFH Options
Oliver Bernard
the process of growing their brand, with exciting projects due over the next year or so. You will have an in-depth understanding of JavaScript and Node.js/React and have some experience of coaching or mentoring teams in the past. Essential skills for a Senior Fullstack Engineer: Fullstack JavaScript more »
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Javascript Developer

london, south east england, United Kingdom
Hybrid / WFH Options
We Source Talent
Mid Level Front End Developer - Javascript - React - Next.js🚨 🎯London/Hybrid X1 Week London Office🎯 🚃 Zone 1 🚃 💷up to £60k + Benefits 💷 🔥Hugely Successful Well Known Analytics company based in London, who work with some of the most major and high profile brands engaging over 230 Million Global Consumers on … their website a month are looking for a Mid Level Javascript Front End Developer. Lot's of multiple greenfield projects on offer utilising cutting edge tools, whilst adopting the right tools for the job mentality. You will work on multiple high performance websites and will have excellent exposure to learn … platform functionality Write and improve technical documentation when necessary Participate in all Agile planning meetings and stand-ups 👩‍💻Essential Skills 2+ yrs Demonstrable Commercial JavaScript experience React.js and Next.js (highly preferred) Integrating first and third party services including REST APIs TDD ⚡️Desirable Agile working principles Working with a design system more »
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Lead Frontend Engineer

london, south east england, United Kingdom
X4 Technology
working on and how their designs may effect customer satisfaction. Mainly working with the client Product Engineering Team you will be: Writing TypeScript/JavaScript to build highly usable websites that you're proud of Integrate complex FE components to work with APIs Promote a true culture of quality amongst … the technology team We are mainly looking for candidates who hold experience in the below technologies: JavaScript/TypeScript (deep understanding) Experience working with JavaScript frameworks (Vue (2-3)/Nuxt currently) HTML/CSS/SCSS Tailwind Front End build tools (Webpack, npm, Vite etc) This role will be more »
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Full Stack Engineer

London Area, United Kingdom
Hybrid / WFH Options
Harrington Starr
and robust tests, including unit and integration tests. Requirements: Demonstrated track record of 3 or more years as a Full Stack Engineer. Mastery of JavaScript, HTML, and CSS, coupled with expertise in a contemporary front-end framework (such as React, Angular, Vue.js, etc.). Proficiency in implementing server-side technologies more »
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Developer (Python & Azure)

london, south east england, United Kingdom
Mastek
visualization tool, such as PowerBI, Tableau, or similar. Knowledge of database management systems (DBMS) and proficiency in SQL Server or similar platforms. Experience with JavaScript, HTML, CSS, and front-end development frameworks would be a plus. more »
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Web Developer

london, south east england, United Kingdom
Hybrid / WFH Options
The Profs
and SEO specialists, full stack software developers, content creators and our heads of growth and marketing. Essential Requirements: 2+ years of experience. HTML, CSS, Javascript, WordPress, PHP EAPIs (using cURL or cURL in PHP) Git (for version control e.g. BitBucket) Designing and developing new websites. On-site SEO. MySQL queries more »
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Software Engineer

London Area, United Kingdom
Jefferson Frank
working with the latest technology and are interested in enhancing your tech abilities? Responsibilities Multiple years of professional experience working on backend systems Node.js, Javascript AWS – CDK, API Gateway, Dynamo DB, Lambda, Event Bridge, S3 Serverless and event-driven architecture Well-versed in modern development practices including cloud-native, DevOps more »
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Senior UX/UI Designer - Shopify

London Area, United Kingdom
We Make Websites
successful design projects, including branding and website design Familiarity with agile development methodologies Knowledge of front-end development technologies such as HTML, CSS, and JavaScript About Us We Make Websites is a Shopify Plus agency with a team spread across London, New York, Toronto, Vancouver, Miami, and Los Angles. Our more »
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Senior Full Stack Developer (Ruby/React)

London Area, United Kingdom
Oliver Bernard
project streams for the leadership team. Paying Up to 95k Hybrid in London Client Facing from the get go Tech Stack - Ruby on Rails, JavaScript, React, AWS Actively interviewing, please get in touch ASAP to register interest! Senior Full Stack Developer(Ruby/React) - Hybrid - Up to 95k more »
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JavaScript
London
10th Percentile
£47,500
25th Percentile
£61,250
Median
£85,000
75th Percentile
£115,000
90th Percentile
£143,750