Top Tech Jobs & Startup Jobs in London

Build and operate Internet-scale systems terminating HTTP and TLS, migrate infrastructure from NGINX to a Rust-based proxy, improve protocol performance, and contribute to open-source projects and industry standards. The role involves complex systems programming, reliable and secure software development, and collaboration with leading networking engineers.

Lead research, design, and evaluation of large-scale detection models for automated, fraudulent, and malicious activity. Define measurement frameworks for noisy or incomplete ground truth, mentor data science practitioners, advance AI/ML techniques, and shape long-term detection strategy. Partner with ML Engineering, Data Engineering, and Product teams to influence roadmaps and protect Cloudflare customers from evolving threats.

Build and maintain Cloudflare’s deployment platform, enabling safe, reliable, automated releases at global scale. Responsibilities include progressive deployments, health-mediated rollouts, release workflow automation, internal instrumentation, deployment tooling, and frontend and backend development. The role requires predictable delivery on fast-moving projects and may include after-hours on-call support.

Provide technical leadership for Cloudflare’s deployment platform, defining architecture and multi-quarter direction for safe, automated, health-mediated releases at massive scale. Lead RFCs, design reviews, incident retrospectives, technical migrations, and cross-team platform initiatives. Mentor engineers, influence teams without direct authority, develop observability and rollback guardrails, and shape AI integration in a safety-critical deployment system. The role requires autonomy, strong communication, and occasional on-call support.

Lead complex enterprise sales cycles, acquire new logos, expand strategic accounts, exceed multi-million-dollar quotas, and manage accurate forecasting and pipeline strategy. Understand customer IT architectures and align Cloudflare solutions to business needs. Lead virtual cross-functional teams, negotiate complex contracts, engage executive and technical stakeholders, position digital transformation solutions, build trusted customer relationships, and coach colleagues.

Design, build, and operate Cloudflare application security systems, including rate limiting and web application firewall services. Lead complex technical projects, define scalable architectures, improve reliability, review code and designs, collaborate across engineering teams, and mentor other engineers. The role involves distributed systems, production monitoring, debugging, operational improvements, and occasional on-call support.

Manage Cloudflare’s strategic EMEA service provider partnerships, developing joint business plans, go-to-market strategies, integrated solutions, and revenue growth initiatives. Build executive relationships, negotiate agreements, oversee partner incentives, training, enablement, forecasting, pipeline development, and quarterly business reviews. Collaborate across sales, engineering, product, marketing, customer success, and operations teams to execute partnership strategies and expand service provider business.

Leads Cloudflare’s UKI Digital Native sales team, driving revenue growth, market strategy, hiring, forecasting, account planning, technical selling, and executive engagement. The role manages Territory Account Executives, partners with solution engineering, customer success, and marketing, develops developer-focused customer relationships, and represents Cloudflare at industry events. Travel within UKI is required.

Design, implement, and maintain distributed software systems supporting Cloudflare’s application security products, including Rate Limiting and Web Application Firewall. Participate across the software development lifecycle, write automated tests, monitor production deployments, debug complex systems, review code, collaborate with security and infrastructure teams, and mentor colleagues. The role involves Rust and Go development, databases, Docker, Kubernetes, and maintaining reliable, fault-tolerant systems at scale, with possible on-call responsibilities.

Design, develop, and maintain scalable Go microservices, APIs, and data models supporting Cloudflare’s global IP addressing infrastructure. Build distributed, fault-tolerant systems for IP assignment, traffic engineering, BGP management, and provisioning. Collaborate with reliability, network, and product engineers while debugging complex systems and learning edge networking, routers, DNS, and Linux environments.