Site Reliability Engineer - Infrastructure Systems

Job requirements:

• Linux Expertise: Knowledge of Linux operating system internals, networking stack, and kernel tuning
• Infrastructure as Code: Strong Experience with Kubernetes orchestration and automation using Terraform, Ansible, Puppet or similar tools
• Programming Skills: Python proficiency for developing automation tools and operational scripts
• Architecture: Ability to design Highly Available and complex distributed scalable systems architecture
• Observability Tools: Hands-on experience with monitoring solutions like Prometheus and Grafana dashboards
• Security Knowledge: Understanding of security principles and best practices for infrastructure

What We Value:

• Adaptability and willingness to learn new technologies as our infrastructure evolves
• Strong problem-solving abilities, especially in high-pressure situations
• Collaborative mindset for working with the whole Infrastructure department

Bonus points for:

• Experience with bare metal provisioning
• On-premise cloud solutions experience
• Contribution to open-source projects

What We Offer

• Work that Matters: millions of people trust Proton with their privacy. We answer only to our users — not advertisers, not investors with conflicting agendas, not governments. The work you do here is real, and the impact is measurable.
• Salary Range: Paris - Base Annual Gross - 50,000€ to 77,000€ - Final compensation will be determined based on the candidate's qualifications, skills, and previous experience.
• Stock Options: at Proton, we all have the opportunity to be owners of the company. From day one, you have a real stake in what we're building. When Proton wins, you win.
• Technology: you'll get the right hardware and the right software you need to do your best work.
• Learning & Development: we invest in your growth because sharp people make us better. Proton is one of the fastest ways to accelerate your career because you'll be thrown into real challenges, with real ownership, from day one.
• Employee Benefits: your wellbeing isn't an afterthought. We offer strong health coverage, solid retirement options, generous leave, and wellness support so you can bring your best self to work every day
• Office First: Proton is an office-first company. We expect you to spend most of your time in the office, and while we do offer some flexibility to work from home, we believe in-person collaboration helps us build the best products.
• Food: Lunch and snacks are on us every day in our offices so you can focus on the work and not on what's for lunch.
• Transport: getting to the office shouldn't cost you. We cover public transport, bike allowances, or parking, whichever works for you.
• Flexible Working: you own your schedule. Set hours that work for you and your team — because outcomes matter more than when the clock says you started.

Our Commitment to Diversity and Inclusion

At Proton, we believe diversity drives innovation and strengthens our mission to provide privacy as a default for all. We are committed to fostering an inclusive environment where all individuals, regardless of race, ethnicity, gender, age, sexual orientation, physical ability, or socio-economic background, feel valued and empowered. We strive to create equal opportunities, promote open dialogue, and support continuous learning to ensure every voice is heard and respected.