Top Tech Jobs & Startup Jobs in London

Create developer education content through documentation, videos, livestreams, talks, tutorials, and code. Represent developer feedback in product discussions, grow open-source communities, collaborate with ecosystem partners and maintainers, and work cross-functionally with engineering, product, and marketing teams. The role requires hands-on JavaScript or TypeScript coding, strong knowledge of the JavaScript ecosystem, developer community-building experience, and excellent written and verbal communication.

Own the strategy, roadmap, and lifecycle of Cloudflare’s enterprise Email Security platform. Lead threat detection investments, Zero Trust integration, customer discovery, competitive differentiation, and global launches. Partner with engineering, threat intelligence, sales, and design teams to address email threats such as business email compromise and phishing. Drive product growth, enterprise adoption, and technical platform evangelism while making data-informed investment decisions.

Leads the Egress engineering team responsible for Cloudflare’s network connectivity infrastructure. Responsibilities include hiring and mentoring distributed software engineers, shaping technical vision and roadmaps, evaluating distributed network infrastructure tradeoffs, overseeing production services and incident response, managing on-call rotations, resolving customer escalations, and driving reliability and automation improvements.

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.

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.