Senior Site Reliability Engineer

About Passbolt

Passbolt SA is a private company registered in Luxembourg. Our mission is to build beautiful solutions to online security and privacy problems. Our flagship software is an open-source password manager that allows team members to store and share credentials securely. 

You will join a growing and dynamic team committed to provide an exceptional user experience to all passbolt community members. Passbolt is and always will be an engineering company. We're looking for versatile self-motivated engineers who can bring fresh ideas and find elegant solutions to challenging problems. 

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Purpose of the job

We are looking for a Senior Site Reliability Engineer (SRE) to help build and maintain our secure, scalable, and resilient infrastructure. As a member of the SRE team, you will be responsible for the reliability, automation, and performance of the Passbolt cloud and self-hosted services. You will collaborate with engineering and security teams to design and operate systems that are robust, observable, and cost-effective while ensuring the highest standards of security and data privacy.

Main Responsibilities

Architecture & Infrastructure

• Design, implement, and maintain cloud infrastructure on AWS and GCP using Pulumi and infrastructure-as-code best practices.
• Build and manage Kubernetes clusters and container orchestration platforms for product and internal services.
• Maintain and extend Passbolt's official Docker containers, VM images, and distribution packages for supported platforms.

Operations & Reliability

• Define and implement monitoring, alerting, and SLOs/SLAs to ensure system reliability, performance, and uptime.
• Continuously evaluate and improve deployment strategies to minimize downtime and risk.
• Automate system operations, patching, and failover processes for zero-downtime deployments and fast recovery.

Incident Management & Response

• Lead incident response, diagnosis, and root cause analysis to rapidly restore service and identify improvements.
• Manage on-call rotations, playbooks, and post-incident reviews with a blameless culture.
• Ensure regular patching and vulnerability remediation across all infrastructure layers, including OS, containers, and third-party dependencies.

DevOps & CI/CD

• Improve CI/CD pipelines to ensure fast, secure, and reliable software delivery.
• Collaborate with development teams to support build, test, and deployment workflows.
• Drive adoption of security-as-code and policy-as-code across the infrastructure lifecycle.

Documentation & Knowledge Sharing

• Write and maintain documentation for systems, procedures, and incident handling processes.
• Share best practices, lessons learned, and technical findings internally and with the community via blog posts or conference talks.
• Support open source community needs related to deployment, performance, and architecture questions.

Skills Required / Qualifications

Technical Skills

• Bachelor's degree in Computer Science, Engineering, or a related field; or equivalent practical experience.
  3+ years of experience working on large-scale cloud-native infrastructure or distributed systems.
• Strong Linux systems administration expertise.
• Deep knowledge of cloud infrastructure (AWS, GCP) and tools like Pulumi, Terraform, or similar.
• Solid understanding of Kubernetes, Docker, CI/CD systems, monitoring, logging, and tracing.
• Experience with networking, security hardening, and performance tuning.
  Hands-on experience with Go and Shell scripting; familiarity with PHP, Rust or Python is a plus.
• Experience managing infrastructure using GitOps, automation, and IaC.
• Familiarity with security concepts, firewalls, CDNs, LDAP, DNS, TLS, and email services.

Soft Skills

• Fluent in English (written and spoken); additional languages are a plus.
• Strong analytical skills with a solution-oriented mindset.
• Effective communicator with cross-functional teams.
• Ownership-driven, proactive, and capable of working autonomously.
• Passion for cybersecurity, privacy, open source, and ethical tech.
• Comfortable working in asynchronous and remote-first environments.

Considered a plus

• Experience contributing to open source infrastructure tools or communities.
• Familiarity with compliance and data privacy frameworks (e.g. GDPR).
• Experience in performance tuning at infrastructure and application levels.

Benefits of working at Passbolt

We put a lot of effort into creating a workplace where everyone has room to learn, have fun, evolve and become the best version of themselves.

Here are some benefits, provided by default:

• Work from anywhere, or from our headquarter located in the Grand Duchy of Luxembourg. 
• Work/life balance: to keep the flow going, it's important to take regular breaks and disconnect. We provide 26 days of paid holidays / year.
• Equity for everyone. We are all in the same boat, we win together.
• When you grow, we grow: we invest in your professional as well as personal growth, through paid trainings of all types.
• In tune with yourself: Passbolt is built on strong values which we stand for: transparency, openness, privacy, people-first. Read more about what we believe in here.