Senior Manager, Firefox Mobile Test Engineering

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. 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 support of our mission to make the internet a healthier place, we aim to make Firefox the best mobile browser for security, privacy, speed, and empowering user choice. Firefox Mobile is used by tens of millions of people across Android and iOS every month. The Test Engineering team is responsible for making sure that experience is excellent – through test automation infrastructure, observability tooling, and hands-on exploratory testing. We're growing this team's scope and ambition, and we're looking for a senior leader to own it.

This is a role for someone who thinks about quality the way a great product manager thinks about users: with curiosity, with ownership, and with a bias toward finding the things that matter most. You'll set our overall test strategy, lead our exploratory testing program, and manage a team of engineers building the automation infrastructure and observability tooling that keeps Firefox Mobile healthy at scale.

You'll manage a team of full-time engineers plus a group of contractors, and you'll work in close partnership with our Android and iOS engineering, product, and UX teams to help us all collectively drive greater development speed, developer ease, and product quality.

 What you’ll do:

• In concert with senior mobile leadership, you will set and own Firefox Mobile’s overall quality strategy – not as a set of metrics to report, but as a product outcome to drive. 
• Manage our Test Automation Engineering, ensuring we understand and prioritize the highest impact work and detect bugs earlier in the process, in deep partnership with our iOS and Android dev teams
• Oversee our observability work, including dashboards and automated reporting that give engineers early visibility into quality regressions, crash trends, and product health signals.
• Lead our exploratory testing work, including teaching exploratory testing skills and structuring our exploratory testing program.
• Partner closely with Product, UX, and Engineering leadership to identify quality gaps and advocate for fixes – representing the user's perspective in technical conversations.
• Manage and support a geographically distributed team.
  
  

What you’ll bring:

• 10+ years of experience in test engineering, including 5+ years in technical management roles.
• A genuine philosophy about software quality – you have opinions about exploratory testing, test automation strategy, and how to build teams that actually improve products and processes.
• Experience building or significantly transforming a testing practice, including hands-on knowledge of exploratory testing methods and test automation approaches.
• Track record of building collaborative relationships with development teams and influencing how engineers think about quality – without owning all the testing yourself

• How to Stand Out

  • Familiarize yourself with Firefox Mobile and its testing engineering processes to demonstrate your knowledge of the company's products and technologies, and be prepared to provide examples of how you've applied similar testing engineering principles in previous roles.
  • Develop a portfolio of work samples that showcase your expertise in test engineering, including examples of test automation frameworks, bug tracking systems, and technical documentation, to demonstrate your skills and experience to Mozilla's hiring team.
  • Highlight your experience with Excel in your application materials, such as your resume and cover letter, and be prepared to provide examples of how you've used Excel to analyze data, track metrics, and inform testing engineering decisions.
  • Research Mozilla's mission and values, and be prepared to discuss how your own values and experience align with the company's focus on privacy, security, and community, to demonstrate your cultural fit and enthusiasm for the role.
  • Prepare to discuss your experience with remote collaboration tools and agile methodologies, as Mozilla is a remote-friendly company that values flexibility and adaptability, and be ready to provide examples of how you've successfully managed remote teams or collaborated with distributed teams in the past.
  • Be prepared to negotiate salary based on industry standards for remote work in Spain, and research Mozilla's benefits and perks, such as flexible work arrangements and professional development opportunities, to ensure you're getting a comprehensive compensation package that meets your needs.