
Cloudflare
Mid
Own the full lifecycle of threat-intelligence and abuse-disruption systems on Cloudflare's Cloudforce One team
Cloudflare is hiring a Software Engineer for Cloudforce One, its threat operations and research team, to design, build, and run distributed data pipelines that expose threat intelligence (TTPs, IOCs) to analysts and customers while supporting legal/Trust & Safety response efforts. The role spans Go/TypeScript (with Rust, Kafka, Redis, Kubernetes, Terraform, Temporal, PostgreSQL) and expects 5+ years building large-scale distributed systems, plus comfort translating legal/security requirements into production software. Austin, US, hybrid, with on-call.
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What this interview tests
- Full SDLC ownership of a distributed threat-intelligence or abuse-detection system
- Data pipeline design for large-scale threat signal ingestion and analysis (TTPs, IOCs)
- Go/TypeScript production experience; familiarity with Rust, Kafka, Kubernetes, Temporal, PostgreSQL
- Translating legal/Trust & Safety requirements into technical design
- On-call ownership and production monitoring/maintenance
- Mentoring teammates and promoting well-tested, modular code practices
Common question themes
Walk through a distributed system or data pipeline you owned end to end
How would you design a pipeline to surface IOCs/TTPs to both analysts and customers
Describe translating an ambiguous legal or compliance requirement into a technical solution
Tell me about an on-call incident you resolved in a production service
How have you used AI-assisted development or agentic workflows in your engineering
How candidates describe it
Real Threat Intelligence Software Engineer interview stories — retold from candidates' public write-ups, with sources.
Google · L3 Software EngineerOfferGoogle L3 software engineer interview: phone screen, four coding rounds, and the Googleyness round
A candidate with two years of experience went from recruiter outreach to offer over about four months. The onsite was four 45-minute coding rounds — three of them featuring binary trees — and one round turned into a 25-minute chain of follow-ups about approximating an optimal solution at scale.
Interviewed June 2020 · Bangalore, IN
Google · L4 Software EngineerNo offerGoogle L4 Software Engineer Interview: Eight Rounds, No Offer
An L4 Software Engineer candidate went through two phone screens, three onsite rounds, a culture conversation, and a team-matching call with a Google hiring manager, then watched the process stall for about a month and a half over a tightened experience requirement before an added extended round ended without an offer.
Interviewed February 2024 · Not specified
Google · L5 Software EngineerNo offerGoogle L5 software engineer interview: phone screening, three onsite rounds, system design, and a late rejection
A candidate interviewing for an L5 role went through a phone screening, three onsite coding rounds, a mobile system design round, and a Googleyness and Leadership round. Two of the four technical rounds went poorly by the candidate's own assessment, and after roughly two months of silence the recruiter reported that the role had been closed.
Interviewed January 2023 · Not specified
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