Senior Systems Engineer - Application Security

Cloudflare·Hybridsenior

En corto

→Ingeniero de sistemas senior enfocado en seguridad de aplicaciones a escala global.
→Diseño y mantenimiento de componentes críticos de seguridad como WAF, Page Shield y API Shield con Go/Rust.
→Trabajo en equipo altamente colaborativo con enfoque en IA, iteración rápida y mejora continua.

Proficiency in English is required.

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¿Qué piden?

✓5+ años de experiencia como desarrollador de software.
✓Dominio de Go o Rust.
✓Experiencia con sistemas distribuidos a gran escala.
✓Conocimiento en herramientas DevOps como Kubernetes, Salt, Kafka o Systemd.
✓Fundamentos sólidos en Linux/Unix.
✓Actitud proactiva, empática y orientada a la cultura positiva.

¿No cumplís todo? Es lo normal — tu dossier gratis te dice qué gaps tenés y cómo cubrirlos en la entrevista.

GoRustKubernetesSaltKafkaSystemdLinuxUnixDistributed SystemsAI

¿A quién escribirle en Cloudflare?

Tu dossier gratis identifica a las personas que te entrevistarían — con su background, qué valoran y cómo escribirles para destacar antes de aplicar.

About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company. At Cloudflare, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in. Available locations: Amsterdam, Netherlands, Brussels, Belgium, Lisbon, Portugal, London, UK, Munich, Germany, Paris, France, Sweden, Switzerland. This role requires two days in office, it is not a fully remote role. About The Team Application Security is responsible for Cloudflare’s fast-growing security product portfolio including WAF, Page Shield, Web Asset Management and API Shield. Being part of Cloudflare means working at internet scale and we are uniquely positioned to tackle challenging problems related to being connected to more networks, websites and customers than any other provider worldwide. Working at great scale by default (to an extent not offered by most other employers in big tech) means pushing boundaries well beyond what commodity solutions like Nginx and Kafka provide out of the box. You’ll be working with custom components that have been created in an engineering-driven and pragmatic way - our code is well-tested and documented and uses modern ecosystems like Go and Rust. This gives you confidence that you will spend your time having an impact and not firefighting! You’d be joining a high-profile part of the business that can really accelerate and support your career. Cloudflare has a strong track record of growing in a thoughtful way and hires carefully so we’re confident that you will enjoy working with your colleagues here! About You You must have at least 5 years of professional experience working hands-on as a software developer . We require proficiency with at least one of Go or Rust, plus exposure to devops tooling like but not limited to Kubernetes, Salt, Kafka or Systemd. Strong Linux / Unix fundamentals will be very helpful. You must have experience working with distributed systems at scale. Experience with cyber security is preferred but not essential. Cloudflare’s culture is busy and multifaceted, and people who succeed here are persistent, have a can-do attitude and a genuine willingness to assume good faith in others. This last quality in particular requires them to be empathetic and emotionally intelligent, so you’re someone willing to take responsibility for the culture and environment that you create around you. What You’ll Do • Design

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