JavaScript jobs in London

Mandatory Technical Skills Strong hands-on experience with Karate Framework. Strong knowledge of Core Java and JavaScript. Strong experience in API testing and automation. Hands-on experience testing MQ messages and Kafka. Strong database testing and integration experience, including database connec

Limbic

Limbic ищет инженера AI/ML для разработки нашего AI‑помощника‑терапевта, который проводит структурированную CBT по телефону. Работа в команде продукта, взаимодействие с лицензированными клиницистами для надзора за каждым пациентом. Требуется PhD в вычислительной психиатрии и опыт в ML/Data Science в

9NEXUS Limited

9NEXUS Limited is seeking a Teamcenter Active Workspace Developer to tailor and support the Active Workspace UI, delivering user-friendly PLM applications through declarative configuration and client-side extensions. The role focuses on building views, view models, actions and data providers, develo

Tether

Tether is seeking a Product Engineering Lead to drive the end-to-end delivery of QV.AC on-device AI features. You will lead engineering teams, partner with product managers, and set a demanding engineering bar for performance and reliability. You should have deep JavaScript/React experience, a keen

Checkout.com

Who you are 8+ years of experience in a Solutions Engineering, Partner Engineering, Implementation Engineering, or similar role (payments industry experience is a bonus) Knowledge of or experience working with eCommerce platforms, subscription management platforms, and ERPs Highly familiar with API-

Workman Labs

DNEG is seeking a specialist to design and maintain ComfyUI workflows for deploying audiovisual GenAI models across projects in London, with remote options. You will build templatable workflows and scale them into cross‑platform solutions, partnering with creative teams and DevOps to streamline depl

Brit Insurance

Brit Insurance is seeking a Manager (Research & Development) to lead the team focused on catastrophe risk modelling and analytics, partnering with the Head of Risk Aggregation to enhance tools and data across the business. The role blends technical depth with commercial impact, drawing on Lloyd's/Lo

Salesforce, Inc.

Salesforce, Inc. is hiring Technical Builders to ship AI-powered agentic solutions for Fortune 500 customers. You’ll join a pod, own components end-to-end, and work with real customer environments from day one. You should have 3+ years of software engineering or technical delivery, hands-on with LLM

Attio

A tech-driven company based in Greater London is seeking a Product Engineer who will help redefine customer relationship management. The candidate will use their expertise in JavaScript and TypeScript to implement product features within a fast-paced engineering team. The role includes delivering in

Arbor Education

Full Stack Engineer (ML Ops) London, UK FinTech · Banking · Finance Skills & Experience Job roles: Full Stack Experience level: Mid, Senior Core skills considered: Java, React, Redux, AWS, JavaScript Logistics Base salary: £70K - £110K Employment type: Permanent Remote working: Hybrid (up to 2 remot

Ten10

Ten10 is seeking a Senior Software Developer in Test to design, build, and implement cutting-edge automation frameworks for clients in a consultative setting. The role includes leading small teams of automation testers, taking ownership of QA strategies, and ensuring solutions align with business ne

Citizens Advice

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ZipHQ, Inc.

About Zip Zip is the AI platform for enterprise procurement — built for humans and agents working together. By orchestrating procurement across teams, tools, and suppliers with the help of AI agents, companies can secure the resources they need to innovate faster than ever before. The world’s most i

Lao-Top College

Laotop recherche un Développeur JavaScript/Node.js pour intervenir sur une plateforme stratégique à Londres. Mission de 90 jours avec développement et évolution via Node.js, APIs REST, DevOps, Python et Oracle/SQL. Vous travaillerez sur le développement, l’intégration et la qualité du code, avec un

Premium Credit Ltd

Premium Credit is seeking a CRM Developer to join its Product & Technology team. You will shape CRM solutions on Microsoft Dynamics 365 CE, collaborating with stakeholders to design, develop and deliver features that enhance customer experiences and streamline processes. The role requires hands-on d

The Economist

Who you are Experience in frontend and backend engineering Strong fullstack experience with JavaScript or TypeScript Proven experience building production applications with modern frontend frameworks (e.g. React, Next.js) Experience designing and developing APIs (REST and/or GraphQL) Solid understan

Oxford Knight

This is a great opportunity to join a globally successful market-making firm, using innovative and cutting-edge technology. Forget the stuffy world of finance you thought you knew; developers here are tech-driven and truly world-class. Now looking to hire a talented UI Engineer, skilled in advanced

Callsign

Who you are Solid JavaScript/TypeScript and React Comfort somewhere beyond the frontend: an API, a service, or infrastructure System design and architecture, designing features that span frontend, service and configuration Evidence of AI-native working with stated verification A testing instinct: yo

Callsign

Who you are Solid JavaScript/TypeScript and React Comfort somewhere beyond the frontend: an API, a service, or infrastructure System design and architecture, designing features that span frontend, service and configuration Evidence of AI-native working with stated verification A testing instinct: yo

Google

In most instances, this position requires in-person interviews as part of the hiring process. Minimum qualifications: Bachelor’s degree in Engineering, Computer Science, a related field, or equivalent practical experience. 10 years of experience working with client-side web technologies (e.g., HTML,