Top Tech Jobs & Startup Jobs in London

17 Days AgoSaved
Hybrid
London, Greater London, England, GBR
Internship
Internship
Cloud • Information Technology • Security • Software • Cybersecurity
Software engineering intern building and delivering projects for Cloudflare’s global network over a 12–14 week term. The role involves collaborating cross-functionally, working with an experienced mentor, developing software at Internet scale, presenting project results, and participating in professional development and company networking activities. Interns may also contribute to Cloudflare’s blog and media programs.
Top Skills: CC++GoJavaScriptMicroservicesPythonRustTypescript
Reposted 17 Days AgoSaved
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Cloud • Information Technology • Security • Software • Cybersecurity
Build automated GRC solutions and maintain the GRC platform; architect AI governance for autonomous agents; support audit readiness (SOC 2, ISO 27001, PCI, FedRAMP) via automated drift detection and self-healing; and integrate security across Legal, People, Engineering, and Finance to enable developer-friendly compliance.
Top Skills: Cloudflare WorkersD1GoJavaScriptOpa/RegoPulumiPythonR2ReactRest ApisTerraformTypescriptWorkers Ai
Reposted 17 Days AgoSaved
Hybrid
London, Greater London, England, GBR
Mid level
Mid level
Cloud • Information Technology • Security • Software • Cybersecurity
Conduct vulnerability scanning and in-depth analysis, triage and prioritize findings, produce remediation guidance, track remediation progress, and ensure processes and evidence meet DoD IL4 and FedRAMP compliance requirements while collaborating with engineering and compliance teams.
Top Skills: CvssDod Il4FedrampJIRANessusPciPythonQualysRapid7 InsightvmSoc-2
Reposted 18 Days AgoSaved
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Cloud • Information Technology • Security • Software • Cybersecurity
Lead product security assessments, threat model features, triage and own vulnerability lifecycle from bug bounty, SAST, fuzzing, and pentests. Build AI/LLM-driven automation and tooling to scale triage and enrichment, mentor engineers, and influence security across distributed cloud products.
Top Skills: AIBugcrowdFuzzingHackeroneJIRALlmsPenetration TestingSast
Reposted 18 Days AgoSaved
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Cloud • Information Technology • Security • Software • Cybersecurity
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.
Top Skills: Agentic WorkflowsAutomated Pricing ModelsGenerative AiLlmsPredictive AnalyticsPrompt Engineering
New

Track Smarter, Apply Better.

Ditch the spreadsheets. Organize your job search with our freeApplication Tracker.

Use For Free
Application Tracker Preview
Reposted 18 Days AgoSaved
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Cloud • Information Technology • Security • Software • Cybersecurity
Conduct threat models and security reviews for Cloudflare products, triage and manage vulnerability lifecycle (bug bounties, SAST, fuzzing, pentests), build AI/LLM-driven automation tooling for triage and enrichment, coordinate pentests and remediation with engineering, and act as the product security point of contact.
Top Skills: Ai/LlmsBug Bounty Platforms (HackeroneBugcrowd)Cloud/Saas Distributed EnvironmentsDevOpsFuzzing FrameworksJIRAPenetration TestingSastStride
Reposted 19 Days AgoSaved
Hybrid
London, Greater London, England, GBR
Mid level
Mid level
Cloud • Information Technology • Security • Software • Cybersecurity
Manage litigation matters globally, formulate strategies, work with external counsel, and address legal issues including intellectual property and regulatory matters.
Top Skills: LegalLitigation
Reposted 22 Days AgoSaved
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Cloud • Information Technology • Security • Software • Cybersecurity
Own and develop distributed database systems powering R2, Durable Objects, and Workers KV. Implement features, ensure correctness via review and testing, tune performance, optimize data placement and replication across edge topology, and build observability and tooling to operate storage globally across Cloudflare's network.
Top Skills: C++ClickhouseCockroachdbDurable ObjectsFilesystemsGoGrafanaLeveldbLsm-TreeMongoDBMvccPaxosPebblePrometheusR2RaftRocksdbRustSaltstackSlatedbSpannerSsdsTerraformTidbTikvWorkers KvYugabytedb
Reposted 24 Days AgoSaved
Hybrid
London, Greater London, England, GBR
Mid level
Mid level
Cloud • Information Technology • Security • Software • Cybersecurity
Lead and grow a team building and operating the Workers runtime at the edge. Own reliability, release safety, architectural evolution, and performance/security improvements for a high-throughput multi-tenant runtime implemented in C++/Rust and WebAssembly. Partner with adjacent teams, hire and mentor engineers, and balance customer-facing features with foundational investments.
Top Skills: C++HTTPJavaScriptJavascriptcoreLinuxLucetRustSpidermonkeyV8WasmerWasmtimeWebassembly
Reposted 24 Days AgoSaved
Hybrid
London, Greater London, England, GBR
Mid level
Mid level
Cloud • Information Technology • Security • Software • Cybersecurity
Join the Packet Processing team to own and evolve Spectrum, Cloudflare's L4 reverse proxy. Work on the edge dataplane and control plane (Go), integrate cross-dataplane systems, improve observability and operational excellence, participate in on-call and incident response, and help shape the product roadmap for large-scale TCP/UDP traffic, TLS termination, and DDoS-protected services.
Top Skills: AnycastArgo Smart RoutingClickhouseEbpfEnvoyGoHaproxyKafkaLinuxMagic TransitNetfilter/NftablesNetwork NamespacesNginx StreamProxy ProtocolRustSocketsTcTlsUnimog
All Filters
JobType
New Jobs
Job Category
Experience
Industry
Company Name
Company Size

Sign up now Access later

Create Free Account