JavaScript Jobs in London

251 to 275 of 775 JavaScript Jobs in London

Contract Role: Senior Ember.js Engineer Outside IR35 Fully Remote

Central London, UK
Hybrid / WFH Options
Halian
Stack: Frontend : Ember.js (Octane), Glimmer, Handlebars Tooling : Lerna, Yarn Workspaces, ESLint, Prettier Testing : QUnit, qunit-dom, ember-qunit CI/CD : AWS Amplify Auth : Keycloak (OAuth2 integration) Languages : TypeScript, JavaScript Misc : Ember Engines, Babel, Sass, ember-auto-import, ember-fetc Skill-Set Deep experience upgrading and maintaining Ember.js applications (ideally 3.x → 5.x/6.x). Solid grasp of Node.js environments More ❯
Posted:

Contract Role: Senior Ember.js Engineer Outside IR35 Fully Remote

West London, UK
Hybrid / WFH Options
Halian
Stack: Frontend : Ember.js (Octane), Glimmer, Handlebars Tooling : Lerna, Yarn Workspaces, ESLint, Prettier Testing : QUnit, qunit-dom, ember-qunit CI/CD : AWS Amplify Auth : Keycloak (OAuth2 integration) Languages : TypeScript, JavaScript Misc : Ember Engines, Babel, Sass, ember-auto-import, ember-fetc Skill-Set Deep experience upgrading and maintaining Ember.js applications (ideally 3.x → 5.x/6.x). Solid grasp of Node.js environments More ❯
Posted:

Contract Role: Senior Ember.js Engineer Outside IR35 Fully Remote

City of London, London, United Kingdom
Hybrid / WFH Options
Halian
Stack: Frontend : Ember.js (Octane), Glimmer, Handlebars Tooling : Lerna, Yarn Workspaces, ESLint, Prettier Testing : QUnit, qunit-dom, ember-qunit CI/CD : AWS Amplify Auth : Keycloak (OAuth2 integration) Languages : TypeScript, JavaScript Misc : Ember Engines, Babel, Sass, ember-auto-import, ember-fetc Skill-Set Deep experience upgrading and maintaining Ember.js applications (ideally 3.x → 5.x/6.x). Solid grasp of Node.js environments More ❯
Posted:

Contract Role: Senior Ember.js Engineer Outside IR35 Fully Remote

East London, London, United Kingdom
Hybrid / WFH Options
Halian
Stack: Frontend : Ember.js (Octane), Glimmer, Handlebars Tooling : Lerna, Yarn Workspaces, ESLint, Prettier Testing : QUnit, qunit-dom, ember-qunit CI/CD : AWS Amplify Auth : Keycloak (OAuth2 integration) Languages : TypeScript, JavaScript Misc : Ember Engines, Babel, Sass, ember-auto-import, ember-fetc Skill-Set Deep experience upgrading and maintaining Ember.js applications (ideally 3.x → 5.x/6.x). Solid grasp of Node.js environments More ❯
Posted:

Contract Role: Senior Ember.js Engineer Outside IR35 Fully Remote

Central London / West End, London, United Kingdom
Hybrid / WFH Options
Halian
Stack: Frontend : Ember.js (Octane), Glimmer, Handlebars Tooling : Lerna, Yarn Workspaces, ESLint, Prettier Testing : QUnit, qunit-dom, ember-qunit CI/CD : AWS Amplify Auth : Keycloak (OAuth2 integration) Languages : TypeScript, JavaScript Misc : Ember Engines, Babel, Sass, ember-auto-import, ember-fetc Skill-Set Deep experience upgrading and maintaining Ember.js applications (ideally 3.x → 5.x/6.x). Solid grasp of Node.js environments More ❯
Posted:

Vacancy for Research Software Engineer at The National Archives

London, United Kingdom
Digital Preservation Coalition
in academic writing and with the ability to explain complex and/or technical issues and concepts to non-specialists. 4. Proficiency in programming in Python and/or JavaScript frameworks. 5. Experience of different software testing methodologies. 6. Experience of web frameworks such as Django and/or Wagtail development. 7. Experience or knowledge of user experience (UX) design. More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Lead Development Engineer (Server Side) for BestX product, VP

London, United Kingdom
IIBA (International Institute of Business Analysis)
and scalability. Hands-on experience with AWS or other cloud infrastructure. Good to have skills Knowledge of FX, Fixed Income, Equity, or Derivatives products. KDB experience. Understanding of modern JavaScript build tools like node, npm, webpack, etc. About State Street State Street is a leading custodian bank and asset manager, serving clients worldwide for over two centuries. We provide investment More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Microsoft Dynamics 365 Developer

London, United Kingdom
Techwolf
configuration, customization, and development. Strong knowledge of Azure-hosted environments and migration processes. Experience with Power Apps, Power Automate, and Power BI for enhancing Dynamics 365 functionality. Proficient in JavaScript, MS SQL, MS CRM SDK, C# .NET and other relevant programming languages. Familiarity with data migration, integration, and synchronization between Dynamics 365 and external systems. Understanding of security models and More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Data Engineer Python SQL ETL - HealthTech

London, South East, England, United Kingdom
Hybrid / WFH Options
Client Server Ltd
team meet-ups Private Healthcare Pension Opportunity to make a difference, working on Tech for Good Apply now to find out more about this Full Stack Engineer/Developer (JavaScript TypeScript) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people More ❯
Employment Type: Full-Time
Salary: £70,000 - £80,000 per annum
Posted:

Staff Frontend Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Harnham - Data & Analytics Recruitment
peers in craft and standards Keep pushing the envelope-explore emerging frontend tech, AI/UX integrations, and smarter tooling What You'll Bring Expert-level experience with modern JavaScript/TypeScript and a component-based framework (e.g., Vue, React, Angular ) Proven track record of delivering frontend platforms that are complex, performant, and beautiful Deep understanding of frontend architecture , scalability More ❯
Employment Type: Full-Time
Salary: £100,000 - £115,000 per annum
Posted:

Client Solutions Engineer

London, United Kingdom
Luminance
and creating customer-facing developer resources such APIs, SDKs and documentation. Experience of Full Stack Web development and the fundamentals of Cloud Architecture is strongly preferable Demonstrable Experience with JavaScript, NodeJS, Python or equivalent frameworks/languages Excellent interpersonal and communication skills, both verbal and written. Articulate, charismatic, and confident in a customer-facing role, with the ability to present More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Product Designer

London Area, United Kingdom
Allegis Global Solutions
principles , able to communicate and collaborate with engineering teams who will be building the front end you and your team design together. Ability to prototype with HTML, CSS, and JavaScript is a plus but not mandatory. Bachelor’s Degree in Liberal Arts, Business, Communications, Human Computer Interaction, Information Design, Interaction Design, Psychology, or a related field (or equivalent practical experience More ❯
Posted:

Senior Product Designer

City of London, London, United Kingdom
Allegis Global Solutions
principles , able to communicate and collaborate with engineering teams who will be building the front end you and your team design together. Ability to prototype with HTML, CSS, and JavaScript is a plus but not mandatory. Bachelor’s Degree in Liberal Arts, Business, Communications, Human Computer Interaction, Information Design, Interaction Design, Psychology, or a related field (or equivalent practical experience More ❯
Posted:

Solutions Engineer

London, United Kingdom
Hybrid / WFH Options
Solidatus
of running successful demos, Evaluations , and technical workshops with enterprise clients Experience crafting compelling Value-based proposals with compelling ROI Bonus Points For: Hands-on knowledge of Java, Python, JavaScript/NodeJS, SQL, or similar languages Experience working with databases, ETL tools, or data visualization/reporting platforms Previous experience with regulatory compliance, financial services, or enterprise architecture solutions Who More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Lead Frontend Engineer

London, United Kingdom
Acre Software
Passionate about software engineering and about delivering a quality product. Enjoy creating beautiful and enjoyable user interfaces that delight users. Have an excellent understanding and experience with client-side JavaScript (Typescript), React, and of course CSS and HTML. Committed to using automated testing platforms and unit tests to deliver readable, maintainable code. Proficient with issue management, code versioning, continuous integration More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer - FXGO London, GBR Posted today

London, United Kingdom
Bloomberg L.P
evolution We'd love to see: Experience with high volume, high availability distributed systems Good working knowledge of databases and messaging queues, preferably PostgreSQL and Apache Kafka Familiarity of JavaScript/TypeScript Bloomberg is an equal opportunity employer and we value diversity at our company. We do not discriminate on the basis of age, ancestry, color, gender identity or expression More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Fullstack Engineer

London, United Kingdom
Hybrid / WFH Options
Elliptic Enterprises Ltd
form well reasoned, data driven or otherwise evidence based arguments, to influence key stakeholders across the business. Required Skills and Experience Has 5+ years commercial experience Expert level in (Javascript Typescript Python) Familiar with Postgres and K8s Feels at home in AWS console Has built infrastructure with Terraform Bonus points Has worked in an intelligence collection setting Experience with "big More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Fullstack Engineer

London, United Kingdom
Skin Analytics Ltd
ISO 27001). ️ We want to hear from you if you Have experience in the following tech stack: Frontend: React, State Management, React Native (optional but advantageous) Backend: Node, JavaScript, TypeScript Databases: MySQL Infrastructure: AWS (EC2, SNS/SQS, RDS, ES), Linux Docker Have experience in: Familiarity with Publish-Subscribe pattern Experience of working with Jira, BitBucket and Git Experience More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

CRO Analyst

London, South East, England, United Kingdom
Sphere Digital Recruitment
dashboards and clearly communicate testing results, impact, and confidence intervals. Stay up to date with CRO trends, UX psychology, and testing technologies. Use front-end development skills (HTML, CSS, JavaScript) to implement or support test deployments. What You'll Bring Proven track record in designing and running CRO programmes across multiple platforms. Strong understanding of user behaviour, conversion theory, and More ❯
Employment Type: Full-Time
Salary: £35,000 - £45,000 per annum, Pro-rata, Inc benefits
Posted:

Fullstack Backend Engineer - Platform Developer Experience

London, United Kingdom
Hybrid / WFH Options
Spotify
components that you develop Maintain and evolve datasets that are powering our developer experience metrics Who You Are You are proficient in Java, and familiarly with with Typescript/Javascript is a bonus You have good knowledge of Python You have a solid backend foundation and you feel comfortable working across the entire tech stack and have a keen interest More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Professional Services Consultant - German Speaking

London, United Kingdom
WalkMe
WalkMe and digital adoption technologies. What you'll need to succeed Strong understanding of user behaviour and how to improve user engagement through WalkMe. Familiarity with HTML, CSS, and JavaScript to customise and integrate WalkMe elements into web applications. Analytical mindset, capable of interpreting data to make data-driven decisions and optimise WalkMe implementations. Excellent communication and collaboration skills, with More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Application Security Engineer

London, South East, England, United Kingdom
Holland & Barrett International Limited
modeling, vulnerability management, and access control mechanisms. Experience with AWS, Kubernetes, Service Mesh, and API Security (including authentication and authorization). Proficiency in programming languages such as Python, Java, JavaScript, GoLang, and Rust. Familiarity with Agile methodologies like SCRUM, along with proven project management skills to oversee multiple security projects simultaneously. Desired: Independent, proactive, and detail-oriented, with a commitment More ❯
Employment Type: Full-Time
Salary: Competitive salary
Posted:

Data Engineer Lead - NatGas and Power

London, United Kingdom
Gunvor Group
Functions. Authoring reports and dashboards with either open source or commercial products (e.g. PowerBI , Plot.ly, matplotlib) Programming OOP DevOps Application development lifecycle Web technologies HTTP/S HTML/Javascript REST APIs Authentication protocols Data formats (CSV, JSON, XML, Parquet) Experience with time-series databases (e.g., InfluxDB, kdb+, TimescaleDB) and real-time data processing. Familiarity with distributed computing and data More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Frontend Engineer

London, United Kingdom
SOLANA FOUNDATION
inherently positive. Where others see problems, you see solutions. You may be fit for this role if you have: 5+ years of experience in frontend teams, ideally using ReactJS, JavaScript/TypeScript and NextJS in a full stack environment Experience with testing with tools such as Jest, React Testing Library, Playwright Natural ability to write clean and elegant code whilst More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Technical SEO Manager London

London, United Kingdom
gravityglobal.com
such as Asana, Jira and writing clear technical change-requests/briefs. Strong analytical and problem-solving skills. Excellent, persuasive verbal and written communication skills. Familiarity with HTML, CSS, JavaScript, and web development concepts. Benefits Competitive remuneration package Hybrid or Remote. Global career development opportunities Opportunities to make a difference and get involved with our working groups focusing on areas More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:
JavaScript
London
10th Percentile
£47,500
25th Percentile
£60,000
Median
£85,500
75th Percentile
£117,063
90th Percentile
£137,500