Software Engineer, Security Rules

Cloudflare
Lisbon, London
Workplace: HybridFull timeEUR 54,000 - 91,000 annuallyFunction: Software EngineeringExperience: 3+ yearsSkills: ["Curiosity","Critical thinking","Interpersonal skills","Communication","Teamwork","Ownership"]

Design and maintain software systems for Cloudflare’s Application Security Product Offering, including Rate Limiting and Web Application Firewall. Build and ship microservices (mainly in Rust) across the full development lifecycle with automated testing and production monitoring. Collaborate with security, network engineering, SRE, and product teams to deliver scalable, fault-tolerant solutions at Cloudflare scale, while mentoring peers and improving operational health.

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FursaFursa
Cloudflare
Cloudflare
2 days ago

Software Engineer, Security Rules

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Source: Company careers pageValidated by: Fursa AI
Last checked: 9 hours agoStatus: Live

Job Summary

Design and maintain software systems for Cloudflare’s Application Security Product Offering, including Rate Limiting and Web Application Firewall. Build and ship microservices (mainly in Rust) across the full development lifecycle with automated testing and production monitoring. Collaborate with security, network engineering, SRE, and product teams to deliver scalable, fault-tolerant solutions at Cloudflare scale, while mentoring peers and improving operational health.
Location: Lisbon, London
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Design, implement, and maintain systems for Cloudflare’s Application Security Product Offering such as Rate Limiting and Web Application Firewall.
  • •Develop software across the full lifecycle: design/documentation, coding, automated tests, and monitoring production deployments.
  • •Collaborate with security, network engineering, SRE, and product management to design scalable solutions to technical problems.
  • •Review peer work to ensure high-quality, maintainable code.
  • •Debug complex production issues and help improve operational health; mentor team members and coordinate with support teams.

Pay and Benefits

Salary: EUR 54,000 - 91,000 annually
Equity and Bonus:Equity
Perks:Health InsuranceDentalVisionFlexible Spending401kPaid LeaveParental Leave

Key Requirements

  • •3+ years of relevant professional experience in a technology company.
  • •Strong programming skills in Rust, Go, C++, or a similar systems-level language.
  • •Experience building and operating distributed systems at high scale.
  • •Experience with monitoring, alerting, and debugging high-volume production systems.
  • •Experience with databases, including PostgreSQL, Clickhouse, and Memcached.
Experience:3+ years
Skills:CuriosityCritical thinkingInterpersonal skillsCommunicationTeamworkOwnership
Tech Stack:RustGoC++DockerPostgreSQLRedisMemcachedGRPCKafkaClickhouseUnix/LinuxSQLNo-SQLKubernetesPrometheusGrafana

Company Brief

Cloudflare
Provides a global network and cloud platform that delivers security, performance, and reliability services for web applications, APIs, and Internet properties, including CDN, DDoS protection, DNS, and zero-trust security solutions.
Industry: Cybersecurity
Company Size: Enterprise (1,001+ employees)
Revenue: USD 1B+
Growth: Public Company
Valuation: Public Company (Market Cap in USD)
Funding: IPO / Publicly Listed
Headquarters: San Francisco, United States
Founded: 2009
WebsiteLinkedIn