Senior Staff Backend Engineer, Ads at Mozilla

Posted on:
August 25, 2023

🔭 Our mission & vision

Job Description

Hiring Ranges:

Canada Tier 1 Locations: $165,000 CAD - $242,000 CAD

Canada Tier 2 Locations: $149,000 CAD - $219,000 CAD


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

Why Mozilla?

Mozilla Corporation is the non-profit-backed technology company behind pioneering brands like Firefox, the privacy-minded web browser, and Pocket, a service for keeping up with the best articles online. More than 225 million people around the world use its products each month.

Along with 60,000+ volunteer contributors and collaborators all over the world, Mozilla Corporation’s staff are driven by our mission to ensure the Internet is a global public resource, open and accessible to all. We design, build and distribute open-source software that enables people to enjoy the internet on their terms.

What is a Senior Staff Software Engineer at Mozilla?

A Senior Staff Software Engineer is the next level from a Staff Software Engineer. At Mozilla this role can vary, but typically a senior staff engineer leads projects requiring implementation across multiple teams, providing technical leadership, building cross-team relationships, and helping the teams deliver on their objectives. The senior staff engineer is an expert in their domain. They provide feedback on our strategy and goals affecting multiple teams and turn our strategy into coordinated action for those teams. They mentor others by stewarding responsibilities to more junior engineers so they can take on new ones, while collaborating with management on building team consensus and providing direction. Typically, a Senior Staff is a technical lead for multiple teams.

About this team and role

We’re growing the Mozilla Ads product team, focused on display advertising in Mozilla products that is privacy-respecting and values-aligned. You will be one of the lead engineers that will design, build, and own the core backend systems that support advertising in clients (Firefox, MDN, Pocket, Fakespot, etc). You and your team will be the subject matter experts when it comes to advertising, providing guidance and shepherding to various product teams across Mozilla.

What you’ll do…

Lead the completion of major initiatives on clear timelines that span across multiple teams and organizations in Mozilla.

Ensure that the software your team delivers is high quality, measurable, and maintainable.

Collaborate with the office of the CTO on development of industry leading privacy preserving ad technology.

Write engineering proposals for the team’s biggest projects and provide feedback for major architectural decisions across the organization.

Mentor others by stewarding some of your responsibilities to more junior engineers

Collaborate with management on building consensus across the org and providing direction

What you’ll bring…

10+ years of overall software engineering  experience.

Proven ability to successfully lead and ship complex software projects.

Ability to influence roadmaps and execution in the teams you and your team  partner with

Expertise in working on complex backend systems at scale

Expertise in one of the following technologies: Golang, Rust, or Java

Ability to take initiative in a loosely structured environment to lead your team to success.

Experience in digital advertising or advertising platforms

Commitment to our values:

Welcoming differences

Being relationship-minded

Practicing responsible participation

Having grit

Bonus Points for…

Experience in data privacy

About Mozilla 

Mozilla exists to ensure that the internet is 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 and inclusion

Mozilla believes in the value of diverse creative practices and forms of knowledge, and knows diversity, equity and inclusion 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 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: C


Req ID: R2175

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