Marketing Data Science Manager
Mozilla
Hirezar Summary for South African Applicants
This fully remote full time position at Mozilla is open worldwide, so South Africans can apply. As a remote position, you can work from anywhere in South Africa — whether you're based in Johannesburg, Cape Town, Durban, or a smaller town.
Job Description
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<p style="text-align: justify; line-height: 1;">To learn more about our Hiring Range System, please click this <a href="https://docs.google.com/document/d/1ylUe7Ou0EbsOtGRBtUv1sSld3lbZ4mrYzo59tEkSjY8/edit?usp=sharing" target="_blank"><span style="text-decoration: underline;"><strong>link.</strong></span></a></p>
<p><strong>Why Mozilla?</strong></p>
<p><span style="font-weight: 400;">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. </span></p>
<p><span style="font-weight: 400;">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. </span></p>
<p><strong>About this team and role:</strong></p>
<p><span style="font-weight: 400;">In the past few years, Marketing has emerged as a key vector and focus of Firefox’s growth, with Data Science playing an essential role in evaluating Marketing’s impact and developing clear strategies to ensure that success. Marketing Data Science supports Firefox through the standard fare of marketing (ongoing measurement, experimentation/lift testing, adhoc analysis, forecasting/budget optimization), and beyond that as thought leaders at Firefox in translating broad goals into clearly defined objectives and identifying the path towards succeeding in them. </span></p>
<p><span style="font-weight: 400;">In this role, you will continue to build on the Marketing team’s recent successes as Firefox’s Marketing program continues to expand its footprint throughout the funnel. You’ll look to support this success in owning global data strategy for Firefox Marketing, developing new data capabilities to unlock future business growth, collaborating with Data Science counterparts in other domains domains, and working closely across marketing and adjacent cross-functional teams to translate your team’s work into practical recommendations and enablement that drive Firefox’s growth. </span></p>
<p><strong>What you’ll do:</strong></p>
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<li style="font-weight: 400;"><span style="font-weight: 400;">Set the strategy and roadmap for Marketing Data Science, prioritizing the highest-impact opportunities with key partners.</span></li>
<li style="font-weight: 400;"><span style="font-weight: 400;">Establish goals and measurement approaches for attribution, ROI, and campaign performance; deliver insights that improve marketing investment and outcomes.</span></li>
<li style="font-weight: 400;"><span style="font-weight: 400;">Lead and develop the team’s core capabilities across:</span></li>
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<li style="font-weight: 400;"><span style="font-weight: 400;">Performance marketing: budget optimization, causal lift measurement, and conversion-signal testing</span></li>
<li style="font-weight: 400;"><span style="font-weight: 400;">Brand marketing: measurement planning and assessment of long-term and lower-funnel impact</span></li>
<li style="font-weight: 400;"><span style="font-weight: 400;">User insights: retention/LTV modeling and audience segmentation</span></li>
<li style="font-weight: 400;"><span style="font-weight: 400;">Reporting and infrastructure: build self-service dashboards, deliver ad hoc and executive reporting, and develop scalable data models and internal tools that expand our understanding of the acquisition landscape.</span></li>
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<li style="font-weight: 400;"><span style="font-weight: 400;">Bring a forward-looking perspective on advertising, media innovation, and marketing analytics methods.</span></li>
<li style="font-weight: 400;"><span style="font-weight: 400;">Partner with Data Science leaders to evaluate and responsibly adopt emerging AI tools that improve team workflows and impact.</span></li>
</ul>
<p><strong>What you’ll bring:</strong></p>
<ul>
<li style="font-weight: 400;"><span style="font-weight: 400;">6+ years of marketing data science experience, ideally at a media agency or in-house marketing organization.</span></li>
<li style="font-weight: 400;"><span style="font-weight: 400;">Proficiency with marketing analytics tools, inc
Tips for South African Applicants
Timezone Advantage
South Africa (SAST, UTC+2) overlaps well with European business hours and has a few hours of overlap with US East Coast. Mention your timezone flexibility in your application.
Salary in Context
Even without a listed salary, international remote roles typically pay 2-3x more than equivalent local positions in South Africa due to the exchange rate advantage.
Application Tips
Tailor your CV to international standards — use a clean format, highlight remote work experience, and include your English proficiency. Many SA applicants succeed by emphasising their strong work ethic and cultural adaptability.
Load Shedding Preparedness
If you're applying for a remote role, having a backup power solution (UPS, inverter, or generator) and mobile data as a backup internet connection shows employers you're prepared for South Africa's infrastructure challenges.
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About Mozilla
Mozilla is a company in the Firefox industry that hires remote workers from South Africa. They currently have 26 open positions on Hirezar. View all Mozilla jobs →