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 the team and role:
The Websites & MarTech team builds and operates the infrastructure that powers mozilla.org and www.firefox.com, marketing campaign sites, and the systems that connect our marketing technology ecosystem. Our work touches millions of users every day, combining strong engineering practices with Mozilla’s values of openness, privacy, and accessibility.
We collaborate across engineering, creative, and product teams to deliver performant, reliable, and privacy-respecting web experiences that help advance Mozilla’s mission.
As a Backend Engineer (P2) on the Websites & MarTech team, you’ll contribute to the design, development, and maintenance of high-traffic websites and supporting services. You’ll work closely with frontend developers, site reliability engineers, designers, and data and marketing partners to create scalable, maintainable systems that help us connect with users worldwide.
This role is ideal for an engineer who enjoys solving real-world web challenges – balancing performance, automation and reliability – while also benefitting from opportunities to learn, grow, and collaborate across disciplines.
What You’ll Do:
- Build and maintain backend services and integrations supporting high-traffic marketing websites and applications.
- Develop solutions for challenges related to performance, automation, internationalization and developer productivity.
- Write clean, maintainable and well-tested code using Python/Django.
- Deploy and manage services on Google Cloud Platform (GCP) using modern DevOps and CI/CD practices.
- Participate in code reviews and contribute to a culture of collaboration and knowledge-sharing.
- Communicate effectively in a distributed, asynchronous environment.
- Investigate and apply new technologies to improve our systems and workflows.
- Contribute to documentation and operational excellence.
What You’ll Bring:
- Experience in backend web development for high-traffic or large-scale websites.
- Proficiency in Python/Django for building and maintaining production web services.
- Familiarity with cloud infrastructure (GCP or AWS) and modern deployment pipelines.
- Experience using Git and GitHub for version control and collaboration.
- An understanding of testing, monitoring and automation best practices.
- A collaborative mindset and the ability to work effectively on a remote, globally distributed team.
- Strong written and verbal communication skills in English.
If you’re unsure whether you meet every requirement, please apply anyway — many Mozillians have grown into their roles by learning on the job.
Bonus Points For:
- Familiarity with Wagtail CMS or similar content management systems.
- Experience with PostgreSQL and relational database design.
- Working knowledge of REST APIs and microservice communication.
- Experience with Docker, GitHub Actions, and Kubernetes.
- Familiarity with infrastructure-as-code tools such as Terraform.
- Basic understanding of frontend technologies (HTML, CSS, JavaScript).
- Awareness of Agile or Kanban methodologies.
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: E
#LI-REMOTE
Req ID: R2979
Hiring Ranges:
Remote Belgium€42.000—€62.000 EUR
