Senior Security Engineer, Bug Bounty

Mozilla; Deutschland; Vor Ort; EUR 90.000 - 130.000; Vollzeit

Benefits dieser Stelle

Bonus plan

Medical coverage (health, dental, and

Retirement contributions

Home office stipend

Wellness stipend

Parental leave

Referral bonus

Zusammenfassung

Mozilla is seeking a Security Engineer to own, manage, and administer the Web Bug Bounty program while collaborating with product and SIRT teams to mitigate security risks. You will lead triage, validation, and end-to-end remediation, driving improvements in secure development practices across Mozilla.

The role requires 3+ years in security engineering, experience with bug bounty platforms, and hands-on cloud familiarity.

Qualifikationen

• 3+ years of demonstrated ability in a security engineering role.
• Experience operating bug bounty programs, including enhancements, automation and scaling.
• Practical experience with modern cloud technologies (AWS, GCP, Azure, etc).
• Experience analyzing code and systems to move from vulnerability to root cause to prevention.
• Real-world software development or engineering operations experience.
• Strong communication and collaboration to influence cross-functional teams.

Aufgaben

• Own and scale Mozilla’s web bug bounty program, including strategy, prioritization, KPIs, and continuous improvement.
• Serve as the primary liaison with external researchers and platforms (e.g., HackerOne).
• Lead triage and technical validation of incoming reports across multiple channels (HackerOne, Bugzilla, email).
• Drive end-to-end vulnerability remediation with engineering teams for timely fixes.
• Identify root causes and systemic issues to drive long-term secure development practices.
• Collaborate with the Security Incident Response Team on active incidents and post-incident reviews.
• Develop or leverage tooling to improve triage efficiency, signal quality, and program insights.

Jobbeschreibung

Why Mozilla?

The Mozilla Corporation is wholly owned by the non‑profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open‑source software that enables people to enjoy the internet on their terms.

About this team and role:

At Mozilla, we believe the internet is a global public resource—open and accessible to all. As a Security Engineer, you'll protect that vision by building, breaking, and hardening products that put people’s privacy and safety first. We are looking for a security engineer to own, manage and administer the Mozilla Web Bug Bounty program and work with Mozilla product and SIRT teams to ensure risk mitigation of security incidents and events.

What you’ll do:

• Own and scale Mozilla’s web bug bounty program, including strategy, prioritization, KPIs, and continuous improvement
• Act as the primary interface with external researchers and platforms (e.g., HackerOne), fostering a high‑quality and trusted research community
• Lead triage and technical validation of incoming reports across multiple intake channels (HackerOne, Bugzilla, email)
• Drive end‑to‑end vulnerability remediation, partnering with engineering teams to ensure timely, effective fixes
• Identify root causes and systemic issues, and influence long‑term improvements in secure development practices
• Collaborate with the Security Incident Response Team (SIRT) on active incidents and post‑incident reviews
• Develop or leverage tooling to improve triage efficiency, signal quality, and program insights

What you’ll bring:

• 3+ years of demonstrated ability in a security engineering role.
• Experience operating bug bounty programs, including enhancements, automation and scaling, and/or bug hunting
• Practical experience working with modern cloud technologies (eg. Amazon Web Services, Google Cloud Platform, Heroku, Microsoft Azure, etc.)
• Experience analyzing code and systems to move from vulnerability → root cause → prevention
• Real‑world experience in software development and/or engineering operations
• Strong communication, collaboration, and problem‑solving skills, with the ability to influence and guide cross‑functional teams.
• Formal credentials are great, but real‑world experience, curiosity, passion and a growth mindset matter more.

What you’ll get:

• Generous performance‑based bonus plans to all eligible employees - we share in our success as one team
• Rich medical, dental, and vision coverage
• Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
• Quarterly all‑company wellness days where everyone takes a pause together
• Country specific holidays plus a day off for your birthday
• One‑time home office stipend
• Quarterly well‑being stipend
• Considerable paid parental leave
• Employee referral bonus program
• Other benefits (life/AD&D, disability, EAP, etc. - varies by country)

About Mozilla

Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online.

Commitment to diversity, equity, inclusion, and belonging

Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity‑seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions.

We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at [e-mail] to request accommodation.

We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose.

At Mozilla, we’re serving humanity—by maintaining a safe, open internet—while also helping the individual humans employed here to reach their personal and professional goals. With a relatively small team serving hundreds of millions of people, a culture of exploration, and a commitment to mentorship, opportunities abound to learn and grow at Mozilla.

• Purpose is built into our work, with our mission driving every decision
• We challenge assumptions, the status quo, ourselves, and each other
• We are transparent: in our code, our business partnerships, and our everyday interactions
• We seek out people from diverse backgrounds and with perspectives different from our own
• We pair purpose with performance and put people ahead of profit

Our impact is global

• 1000+ paid staff from over 30 countries
• Thousands of volunteer contributors across six continents
• 2 global offices: Berlin and Toronto
• 9 coworking space locations: San Francisco, San Mateo, London, Paris, Portland, Tulsa, Vancouver, Chicago, and Bellevue
• Hundreds of home offices globally

Our benefits are world‑class

• Flexible work environment (majority of Mozillians work remotely)
• Industry‑leading paid parental leave (up to 26 weeks of fully paid leave for childbearing parents and up to 12 weeks for non‑childbearing parents)
• Reimbursement for professional development (up to $3,000/year)
• A work setup including the latest hardware and software of your choice