Top Tech Jobs & Startup Jobs in London

Provide legal support for marketplace and third‑party seller operations, advising on contracts, compliance, policies, and dispute resolution across international markets.

Design, build and maintain Joybuy global affiliate backend services for UK/Europe. Ensure high performance, availability, concurrency, security and scalability. Identify and mitigate technical risks, implement observability and release controls, adopt new technologies, and drive long-term architecture improvements. Work onsite in London.

Design, build, and maintain scalable ETL/data pipelines and storage to support analytics and ML across international markets. Ensure data quality, compliance (e.g., GDPR), monitoring, and automation. Collaborate with data scientists, product teams, and stakeholders to deliver reliable datasets and contribute to the data infrastructure roadmap. Onsite in London.

Lead and mentor an algorithms team to design, develop, and optimize search and recommendation models. Oversee traffic distribution, experimentation, scalable deployment, and performance evaluation to improve personalization, conversion, and engagement while collaborating with product, engineering, and business teams.

Design, develop, and deliver high-quality, maintainable system modules. Drive architecture and scalability, solve complex technical problems, collaborate with product and testing, ensure quality standards, and research emerging technologies for adoption.

Lead warehouse network planning, implement automation and process innovations, analyze supply-chain data to identify bottlenecks, manage warehouse projects and suppliers, optimize costs and SOPs, and drive cross-functional supply-chain system improvements for cross-border e-commerce.

Lead creative strategy for major seasonal and product campaigns across Europe: develop campaign concepts, narratives and localisation; manage agencies and partners; run creative workshops; leverage AI tools; and ensure consistent multi-channel execution to drive brand awareness and commercial performance.

Develop and maintain Joybuy backend services for European retail markets, emphasizing high performance, availability, concurrency, security, scalability, and global integration. Mitigate technical risks, implement monitoring and rollback strategies, research and adopt new technologies, and collaborate with product teams across marketing, fulfillment, and supply chain.

Serve as strategic HR partner for UK leadership, driving talent strategy, performance management, succession planning, UK employment law compliance, culture and engagement, stakeholder management, HR transformation, and data-driven HR improvements to support JD.com's UK expansion.

Monitor and optimize global payment operations and risk controls by auditing channel performance, investigating anomalies and fraud, producing operational reports, mapping payment journeys, supporting product and engineering improvements, maintaining KPI dashboards, and enabling payment onboarding and cross-border projects.