Senior Software Engineer, Services

5 Days ago • 4 Years +
Sign up and Unlock PRO benefits for FREE!

About the job

SummaryBy Outscal

Mozilla seeks a Senior Software Engineer to design and build scalable services for Firefox and other web applications. Must have 4+ years of experience in building and operating scalable services, proficiency in Python, JavaScript, Rust, API design and development, and experience with distributed teams. Good to have experience with Kotlin and Swift.

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:

At Mozilla, one of our four commitments is to build “...an internet that includes all the people of the earth - where a person’s demographic characteristics do not determine their online access, opportunities, or quality of experience.” Being inclusive and transparent for the betterment of humankind is at the core of our values. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. We take care of you by providing industry leading benefits.

Our Services Engineering team strategy is to fuel product growth and diversification by investing in flexible, easy-to-use, and reliable services. Our approach is privacy first as we help people get to the right information in the right context at the right time with less effort. We'd like you to join us in building services to help surface the content our customers want.

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:

  • Design and build robust, scalable systems that power experiences and support feature delivery in Mozilla products such as Firefox and other web applications
  • Help reimagine how we surface and personalize content while respecting our customer's privacy
  • Participate in mentoring and knowledge sharing through documentation, code review, and pair programming
  • Be accountable for the operation of your services with the potential for on-call rotations
  • Help improve the services engineering culture at Mozilla through collaborative projects across the organization

What you'll bring:

  • At least 4 years of professional experience in software engineering building and operating scalable services and applications that support millions of users
  • You are comfortable moving between languages such as Python, JavaScript, Rust and you are willing to learn as needed. Kotlin and Swift are nice to haves.
  • You have experience with API design and development and have supported integrations with your services into desktop and/or mobile platforms
  • You have worked with a distributed team and you can demonstrate good asynchronous written and verbal communication skills
  • You know how to approach an existing codebase and improve its architecture through small, planned interventions

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: R2648

Similar Jobs

Twitch - Software Engineer - Mobile

California, United States (On-Site)

Twitch - Software Engineer - Mobile

Washington, United States (On-Site)

Twitch - Software Engineer - Mobile

California, United States (On-Site)

Electronic Arts - Tools Software Engineer

British Columbia, Canada (On-Site)

Electronic Arts - Software Engineer (Summer 2025)

Washington, United States (On-Site)

Electronic Arts - Software Engineer II - AI & Machine Learning

California, United States (On-Site)

Linden Lab - Senior Software Engineer, Mobile

California, United States (On-Site)

Niantic - Software Engineer, Mobile Native

California, United States (Hybrid)

Similar Skill Jobs

Stoic - Software Test Engineer

United States (Remote)

PlayStation Global - Site Reliability Intern - Undergraduate

California, United States (On-Site)

PlayStation Global - Product Manager, Customer Data Platform

California, United States (On-Site)

WildBrain - Licensing Manager, Retail

New York, United States (Hybrid)

WildBrain - Licensing Manager, Retail

California, United States (Remote)

Lakshya Digital - Environment Artist

Washington, United States (Remote)

Software Engineering Jobs

Stoic - Software Test Engineer

United States (Remote)

PENN Interactive - Staff Identity & Access Management Engineer

Pennsylvania, United States (Hybrid)

PENN Interactive - Senior Infrastructure Engineer

Pennsylvania, United States (Hybrid)

Samsung Semiconductor - Senior Engineer, AI

California, United States (Hybrid)

PlayStation Global - Sr. Manager, Workplace Delivery

California, United States (On-Site)

blitz app - Senior Frontend Engineer (C++)

California, United States (On-Site)

PlayStation Global - Sr. Manager, Workplace Delivery

California, United States (On-Site)

Twitch - Software Engineer - Mobile

California, United States (On-Site)

Twitch - Software Engineer - Mobile

Washington, United States (On-Site)

Level Up Your Career in Game Development!

Transform Your Passion into Profession with Our Comprehensive Courses for Aspiring Game Developers.

Job Common Plug