Top Tech Jobs & Startup Jobs in London

Design, build, and operate globally distributed storage systems; own code from design to release; provision and benchmark storage hardware; model failure domains; build observability, runbooks, and automation; collaborate across teams to ensure reliability, performance, and scalability.

Design and implement foundational layers of next-generation distributed storage and streaming systems. Own code end-to-end, architect consistency models, optimize storage engine performance, design data-centric APIs, and debug complex race conditions, partitions, and infrastructure-level failures. Work across system layers using Rust/C++ and interact with JavaScript/TypeScript as needed.

Lead productionization and optimization of ML models for a global, serverless inference platform. Build benchmarking/evaluation tooling, improve inference performance (quantization, compilation, batching), integrate models with heterogeneous GPUs and accelerators, enhance deployment workflows and observability, and mentor engineers while driving ML production best practices.

Lead and automate Cloudflare's Deal Desk by architecting AI-driven approval workflows, structuring complex enterprise deals, advising Sales on pricing/terms, tuning AI agents, and partnering cross-functionally to reduce friction and improve deal velocity and long-term value.

Generate pipeline and qualify inbound and marketing leads for Sales by creating excellent customer experiences, mapping customer pain to Cloudflare solutions, meeting quota, tracking activity in Salesforce (SFDC), and collaborating with account executives and stakeholders. Role requires Danish, Norwegian, or Swedish language skills and is based in Lisbon on a hybrid schedule.

Pre-sales Solutions Engineer covering Central & Eastern Europe (Hebrew-speaking). Acts as technical customer advocate, designs fit-for-purpose Cloudflare solutions, collaborates with Sales/Product/Engineering, explains complex internet and security concepts, wins technical evaluations against competitors, manages projects and customer relationships, and travels ~10-15 days per quarter.

Design and build a global, serverless AI inference platform running on heterogeneous GPUs and accelerators. Optimize model scheduling, request routing, caching, and load balancing for low latency. Improve reliability and observability, lead cross-functional projects, and mentor junior engineers.

Build, extend, and operate systems that provision, monitor, and orchestrate private network interconnects at scale. Design, implement, test, and deploy software; collaborate with Product, Network, and Infrastructure teams; participate in on-call rotations and maintain production health. Work with systems-level languages and network technologies (BGP, routing, overlays) across distributed services.

Lead and grow an engineering team building the Threat Events platform and external Threat Intel APIs. Own architecture, operational excellence, API performance, and integration of IOCs into products like WAF and Gateway. Hire and mentor engineers, collaborate with product and researchers, and ensure scalable, reliable data pipelines and on-call readiness.

Design, build, and operate Cloudflare's distributed storage and database products (R2 Data Catalog, R2 SQL). Own full lifecycle delivery, architect consistency models, optimize storage engine performance, design APIs, and debug large-scale distributed systems using Rust, TypeScript, Go, C++, and Linux/UNIX.