Top Tech Jobs & Startup Jobs in London

Design, implement, test, and operate backend systems, APIs, and infrastructure at scale. Collaborate with product, UX, and engineers early in feature design, ensure performance, security, resilience, and maintainability, mentor peers, and use AI-assisted coding tools responsibly.

Contract UI/Brand Designer to convert atomic components into conversion-optimised web pages, own core conversion pages, support A/B testing, champion design with senior stakeholders, and collaborate with marketing, design, and engineering to extend the component library and Storybook.

Senior technical leader responsible for setting architecture and engineering standards across the full stack. Lead design of large-scale systems, drive reliability and security, embed AI-assisted coding safely into workflows, translate ambiguous goals into deliverable work, and ensure end-to-end technical quality from design to incident response.

Lead creative development and execution of TV, social, and digital campaigns. Provide art direction, oversee shoots and edits, ensure on-brand, performance-driven storytelling, mentor agency creatives, manage multiple projects end-to-end, and collaborate with cross-functional teams to deliver high-quality outputs.

Own design, implementation, and testing of full-stack features with a frontend focus. Collaborate with product and UX early, build reusable components and resilient services, maintain high code quality, mentor engineers, and use AI-assisted tooling responsibly.

Lead global performance marketing strategy and execution across paid channels. Manage team and agencies, own customer acquisition and LTV:CAC, run A/B tests, optimize campaigns and landing pages, and build scalable processes for planning, reporting, and budget management.

Design, build, and maintain robust ingestion and processing pipelines, data quality, observability, and lineage frameworks. Collaborate with engineers to ensure event design and compliant data sharing. Enable ML/feature pipelines, manage platform cost and governance, and apply AI-assisted coding responsibly while mentoring and raising engineering standards.