Product Security Lead

Overview

Join to apply for the Product Security Lead role at Proton

Proton is a profitable company that provides free and open-source technology to millions, focused on privacy, security, and freedom online. We value intelligence, learning potential, and ambition in our hiring process and operate with a global mindset and a start-up spirit.

The Team

We’re looking for a visionary security professional who combines deep expertise with genuine passion to drive meaningful change across Proton. You’ll be encouraged to challenge the status quo, innovate efficiently, and collaborate daily with some of the brightest minds who care about protecting privacy and building secure products.

Tech Stack and Tools

• Proton offers Mail, Calendar, VPN, Pass, Drive on Windows, MacOS, iOS, and Linux.
• Our infrastructure is entirely Linux-based.
• Wherever possible, we use open-source technologies.

Role and Responsibilities

You will be leading our efforts to ensure that Proton's applications are secure.

• Set the north star – Define a compelling vision and roadmap for product security that inspires the whole organisation.
• Build the function – Find the best people to work with you and build your dream product security team.
• Be the go-to person for product security across the entire company, influencing strategy, design, and delivery.
• Architect secure products – Partner with product managers, designers, and developers to embed security from day one.
• Create playbooks & policies – Design clear, developer-friendly security guidelines and automated workflows that keep code secure without slowing velocity.
• Empower engineers – Build tools, processes, and culture that let developers ship fast and safely.
• Lead the bug bounty program – Turn the global security community into an extension of our team.
• Influence roadmaps – Shape priorities to ensure security is baked into every release.

What we are looking for

• 10+ years in application security (SaaS or privacy-focused)
• Proven track record leading security projects from concept to production
• Leadership style that blends constructive challenge with collaboration
• Hands-on experience with code reviews, penetration testing, or security tooling
• Track record defining and executing remediation plans
• Ability to translate technical detail into clear, actionable guidance for any audience
• Quick grasp of large, complex systems

Nice to have

• Experience with B2B product security features
• Knowledge of infrastructure security (hardware, networking, OS, file systems)
• Experience with cryptographic protocols, or prior work at privacy-centric organizations
• Experience with utilizing open-source code at scale

What We Offer

• Office First: Offices in Geneva, Zurich, Prague, Barcelona, Paris, London, Vilnius, Skopje, and Taipei. Remote options up to 30% of the time where applicable.
• Technology: All devices and software provided to excel in your role.
• Food: Lunch and snacks provided daily at offices.
• Transport: Subsidies or allowances for public transport, bikes, or parking depending on location.
• Stock Options: Ownership of the company through stock options on joining.
• Flexible Working: Define your own hours to fit with team meetings.
• Learning & Development: Training programs, conferences, and ongoing learning opportunities.
• Employee Benefits: Health insurance, retirement savings options, vacation and leave policies, wellness programs.
• Work that Matters: Proton's impact is community-driven; revenue is user subscriptions.

Diversity and Inclusion

We believe diversity drives innovation and are committed to an inclusive environment where all individuals feel valued and empowered. If you need reasonable adjustments during the hiring process, please inform your talent partner.

Candidate Privacy Notice

When you apply for a position at Proton Technologies AG, your information is stored in Greenhouse in accordance with their Service Privacy Policy. We retain information to evaluate your suitability for the posted role and for future opportunities. If you have inquiries about how we use your data, or wish to access, correct, or delete it, please contact our privacy team at

Proton does not accept unsolicited resumes from sources other than direct candidate applications. For more on our privacy policy, please visit our privacy policy page.

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Product Management and Marketing
• Industries: Software Development