Threat Intelligence Software Engineer: Scale Security

Cloudflare; Greater London; On-site; GBP 90,000 - 150,000; Full time

Benefits offered by this job

Equity plan

Health & Welfare Benefits

Flexible time off

Job summary

Cloudflare is seeking an experienced Software Engineer for Cloudforce One in London. You’ll own the complete software lifecycle—from design to deployment—building high-performance, scalable systems that disrupt cyber threats and support legal response efforts.

You’ll work with Go, TypeScript, Rust, and modern data platforms, collaborating with Threat Intelligence, Legal, and Product teams to deliver robust solutions.

Qualifications

• 5+ years building large-scale software applications, preferably distributed systems.
• 3+ years with Threat Intelligence or similar platforms.
• Experience designing and integrating RESTful APIs and/or gRPC services.
• Knowledge of SQL and PostgreSQL.
• Production-ready code in Go and/or TypeScript.
• Familiarity with Rust.
• Excellent debugging and optimization skills.
• Interest in mentoring teammates.

Responsibilities

• Design, build, run, and scale distributed tools and services for threat disruption and platform abuse efforts.
• Develop data pipelines to collect, analyze, and expose threat intelligence data.
• Collaborate with Threat Intelligence, Trust & Safety, Legal, and Product teams to translate requirements into scalable solutions.
• Ensure stability and performance of internal and customer-facing services.
• Participate in on-call rotations and mentor other developers to improve code quality.

Skills

Distributed systems

Threat intelligence

REST/gRPC

Go/TypeScript

Debugging

Mentoring

On-call

Tools

Go

TypeScript

Rust

Kafka

Redis

Kubernetes

Terraform

Temporal

PostgreSQL

React

Job description

Cloudflare is seeking an experienced Software Engineer for Cloudforce One in London. You’ll own the complete software lifecycle—from design to deployment—building high-performance, scalable systems that disrupt cyber threats and support legal response efforts.

You’ll work with Go, TypeScript, Rust, and modern data platforms, collaborating with Threat Intelligence, Legal, and Product teams to deliver robust solutions.