What you’ll do
Build a fundamentally better browser experience: fix bugs, refine UI and navigation, improve downloads, menus, performance, and all the small details that make Firefox noticeably better for users who care about privacy, quality and reliability.
Drive strong activation and retention: focus on the new-user journey, quickly hooking people after they install the app, understanding where they drop off, and relentlessly optimizing the funnel through data, testing and iteration.
Deliver differentiating features and experiences that make Firefox stickier for key user groups, the kinds of things others can’t or won’t build.
Work closely with engineers, designers, data science and TPMs to ship high-impact improvements while balancing user needs, technical constraints, privacy and performance goals.
Stay deeply connected to real users: track App Store trends and discussions, test apps hands-on, analyze reviews and analytics, and turn those insights into concrete enhancements for Firefox on iOS and Android.
Monitor app health in App Store Connect and Google Play Console (crashes, ANRs, ratings) and support acquisition/retention efforts through ASO, store listings and growth experiments.
Adapt and optimize Firefox for global markets (Europe, Japan, Asia etc.), keeping cultural differences and local realities like data constraints in mind.
What you'll bring
Proven Shipping Experience: Hands-on experience launching or managing apps on the iOS App Store and/or Google Play Store, with clear impact on user experience and metrics.
Execution Focus: A strong track record of delivering features and improvements under deadlines through effective collaboration with engineering, design and cross-functional partners.
Mobile & Browser Fluency: Deep understanding of iOS (and ideally Android) ecosystems, app store policies and web browser technologies, with genuine passion for what makes a great browsing experience.
Data-Driven Iteration: Comfort using analytics, funnels, A/B testing and user feedback to improve activation, retention and overall product quality.
User Obsession: Natural habit of studying apps, following trends on platforms like X/Twitter and Reddit, and testing experiences yourself to uncover opportunities.
Global & Growth Mindset: Interest or experience growing products in international markets with sensitivity to local user needs.
Bonus
Experience with mobile browsers or privacy-focused products.
History of meaningfully scaling an app’s user base.
Currently maintaining your own side project or app on the App Store or Google Play.
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 hiringaccommodation@mozilla.com 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
#LI-REMOTE
Req ID: R3128
Hiring Ranges
Remote Spain
€58.000—€77.000 EUR
