Top Tech Jobs & Startup Jobs in London

Leads Joybuy’s European brand strategy, positioning, measurement, campaigns, influencer and content marketing, partnerships, brand governance, and sponsorship activation. Owns brand budget, performance optimization, cross-market consistency, and on-site program equity. Manages the central London brand team while influencing regional communications specialists and collaborating with commercial, product, e-commerce, supply chain, country, and agency stakeholders.

Build and optimize high-traffic e-commerce user-facing web applications using React or similar frameworks. Collaborate with product and backend teams to integrate APIs, improve frontend performance, ensure cross-browser/device stability, participate in design and code reviews, and adopt new frontend technologies. Work onsite in London.

No role-specific responsibilities were included in the provided job description.

Operate and maintain security monitoring systems, detect and investigate incidents, perform incident response and remediation, tune detections, and collaborate with engineering teams to improve security posture.

Build and maintain Joybuy backend systems ensuring performance, availability, concurrency, security, and scalability. Identify and mitigate technical risks with monitorability, maintainability, and grey-release/rollback strategies. Research and adopt new technologies, integrate emerging tech into global architectures, and work onsite in London.

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.

Design, implement, and validate anti-scraping defenses through red-team/blue-team testing. Develop bypass strategies, automated adversarial scripts, and conduct Android reverse engineering, packet analysis/tampering, and offensive/defensive drills to protect JD's platforms.

Design, build, and maintain Joybuy backend systems focused on performance, availability, concurrency, security, and scalability. Identify and mitigate technical risks, enable monitorability and rollback, research and adopt new technologies, and integrate emerging tech into global architectures.

Generic Software Engineer role at JD.com. Description provides company and team overview but lists no specific responsibilities, tech stack, or required duties. Opportunity to join a collaborative, global engineering team working on supply chain and logistics technology.

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.