Top Tech Jobs & Startup Jobs in London

Build QA processes, test plans, release criteria, and scalable UI, API, and integration automation for Android, iOS, and web clients. Integrate automated testing into CI/CD pipelines, conduct exploratory and release testing on real devices, and validate video playback, purchases, subscriptions, and A/B tests. Track quality metrics, flaky tests, and crash trends while collaborating with Engineering, Product, and Design to improve product quality.

Design and develop Go-based connectors, proxies, sidecars, gateways, and gRPC services for AI infrastructure and real-time data processing. Build high-throughput, low-latency networking components, research protocols, optimize concurrency and resource usage, and troubleshoot complex Linux networking issues. Own features from research through production, improving reliability, testing, error handling, and observability across distributed platform components.

Own technical support and customer onboarding for an AI-powered B2B SaaS platform. Resolve customer issues, distinguish user errors from product bugs, document reproductions for R&D, configure SSO and identity providers, manage desktop app rollouts, support CRM integrations, and train enterprise IT teams. Coordinate stakeholders, troubleshoot onboarding blockers, and ensure pilots launch on schedule.

Develop and support an endpoint security product using Java, Node.js, TypeScript, and React. Investigate enterprise customer issues, debug complex systems, analyze logs, profile performance, and identify root causes. Collaborate with global Support, QA, Product, and Engineering teams, contribute to product roadmap decisions, and develop security solutions within an agile environment.

Build modular, config-driven AI video generation pipelines for mobile gaming advertisements. Integrate fal.ai models and APIs, orchestrate reliable asynchronous jobs, manage retries and resumable execution, track costs, and use FFmpeg for video assembly, subtitles, overlays, audio mixing, and format conversion. Document workflows so marketing teams can operate them without coding, while collaborating with creative specialists and demonstrating a working pipeline.

The Fullstack Engineer will develop customer-facing products, enhance UI/UX, collaborate with teams, and utilize data metrics for improvements.

Join as a Senior Full Stack Developer to build high-performance systems in programmatic advertising using AI technologies. Responsibilities include integrating ad servers, developing full-stack applications, and ensuring compliance with privacy frameworks.

Build and scale ad‑tech data infrastructure and ETL/ELT pipelines ingesting SSP/DSP/GAM and ancillary data, maintain data warehouses/lakes, implement data quality and privacy controls, and support BI/analytics for real‑time campaign and auction analytics.

Research browser, WebView, Android, and iOS attack surfaces to identify fraud and automation signals. Design experiments, validate detection hypotheses, build tools and scripts, and translate findings into SDK requirements while collaborating with engineering and product teams.

Design and build workflows using node-based AI systems for video and image generation. Collaborate with teams to enhance AI-driven processes and create demos for various stakeholders.