Senior iOS Engineer
Removed from the employer's board on Nov 5, 2026. First seen by Alion on Nov 4, 2026. Mozilla Corporation scores A on the Alion truth index.
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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. 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:
A healthy and inclusive internet starts with the tools we use to access and discover the Web. On iOS, we start by developing applications that give people a choice in their browser to experience the Web in an open, safe and healthy environment. Promoting transparency, innovation, inclusion and opportunity from every angle for mobile is at our core.
If you are an iOS Engineer and you want to work for a company that builds products for everyone, join our team!
What you'll do:
- Design, write, maintain, and debug software for large and sophisticated mobile applications
- Uphold standards for quality by performing code reviews, fixing bugs, crafting tests, and profiling code
- Collaborating with other teams and mentoring others
- Crafting experiments to build a better understanding how users interact with our apps
- Monitor app stability and address crashes
- Become proficient with our Swift code base
- Collaborate with a geographically distributed team
- Work in the open as part of the Mozilla open source project, and engage with Mozilla’s global community
What you'll bring:
- Experience building and shipping native iOS/iPadOS mobile applications
- Expert coding skills in Swift
- Understanding of web technologies (HTTP, HTML, JavaScript)
- Ability to learn and be effective with a large code base
- Familiar with writing and maintaining unit and integration tests
- Passionate about learning and sharing knowledge with others
- Excellent written and verbal communication skills in English
- Willing to work with, learn, and grow with an outstanding set of people
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 [email protected] 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: R3263
Hiring Ranges:
Canada Tier 1 Locations
$104,000—$139,000 CAD
Canada Tier 2 Locations
$95,000—$126,000 CAD