Senior Software Engineer, RoR

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Why Mozilla?

Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser, and Pocket, a service for keeping up with the best content online. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. 

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:

In the rapidly advancing world of technology, GenAI and deep learning models are transforming our digital interactions. 0din, a next-generation bug bounty program, is here to secure these AI services that are becoming essential to our daily lives.

0din's mission is simple: identify and fix security flaws in popular AI services. By rewarding security researchers and bug hunters, 0din aims to uncover new types of vulnerabilities in GenAI, strengthening our digital defenses.

The rise in AI adoption, exemplified by platforms like ChatGPT, highlights the urgent need for security. 0din fosters a collaborative environment where innovation in security is both recognized and rewarded, ensuring these technologies remain safe and trustworthy.

0din is more than just an initiative; it's a testament to Mozilla's commitment to digital safety and trust.

What you’ll do: 

• Creating robust, scalable, highly loaded applications
• Maintaining and troubleshooting existing applications
• Identifying and fixing bottlenecks and bugs
• Maintaining and expanding APIs

What you’ll bring: 

• Minimum 3 years of professional work experience with Ruby and Ruby on Rails
• Excellent learning ability
• Ability to write efficient algorithms, and clean code
• Good knowledge of relational databases such as PostgreSQL and MySQL
• Experience working with Sidekiq, RSpec and other common RoR libraries
• Working knowledge of Git, Docker
• Good knowledge of full stack web development
• Commitment to our values:
• Welcoming differences
• Being relationship-minded
• Practicing responsible participation
• Having grit

Bonus Points for…

• Golang, Python, Kubernetes deployments
• Working with high traffic systems
• Background processing experience

What you’ll get:

• Generous performance-based bonus plans to all regular 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
• Annual professional development budget
• 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 equit