Senior Software Engineer, Payments

To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu.

To learn more about our Hiring Range System, please click this link.

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:

The Subscription Platform team helps Mozilla expand its reach beyond the Firefox browser by building the payment services which power our premium subscription services such as Mozilla VPN, Mozilla Monitor and Firefox Relay.

Our Subscription Platform team is looking for a driven and upbeat engineer to help build and maintain our scalable, high availability systems. You will be deeply involved in the technical details of implementation, as well as collaborating with the product, design, QA, and data analysis teams to determine the best way to expand our capabilities.

Our team is geographically-distributed, working in the open is the norm, and we value a culture of learning. We know that different experiences make engineering teams stronger. Even if you don’t meet all the criteria below, we’d love to hear from you, learn about your journey, and see if your growth path aligns with ours!

What you’ll do:

  • Write and review open source React and TypeScript, focusing on clean, performant, and reusable code
  • Maintain effective tests and documentation
  • Make accurate estimates for upcoming work, communicate technical solutions effectively, and report progress
  • Work across multiple teams in the delivery of ambiguous, long running projects
  • Manage and mitigate technical risk concerning your project and the work required to achieve your team’s objectives
  • Collaborate with management on team consensus and direction
  • Work collaboratively remotely or in one of our North American offices

What you’ll bring:

  • You have at least 4 years developing and maintaining robust web products
  • Proficiency with Frontend development – preferably React
  • Experience in designing and implementing RESTful web services – preferably with Node
  • Clear, concise, and effective verbal and written communicator with the ability to share technical details clearly across functions and teams

Bonus points for:

  • Experience with payment-processing/e-commerce
  • Experience with real-time notification systems like message queues
  • Experience with CI/CD, Docker, Next.js, GraphQL, AWS/GCP and SQL
  • Experience developing with OAuth2/OIDC

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
  • 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 equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, 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 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.

Group: D


Req ID: R2571

Current Mozilla job openings