0to1 Engineer, Mozilla
$200-227.3k
TypeScript
Python
Figma
Mid and Senior level
Remote from US
Internet software for people, not profit
Be an early applicant
Internet software for people, not profit
1001+ employees
B2CEnterpriseInternal toolsPrivacySaaS
Be an early applicant
$200-227.3k
TypeScript
Python
Figma
Mid and Senior level
Remote from US
1001+ employees
B2CEnterpriseInternal toolsPrivacySaaS
Company mission
To ensure the internet remains open and accessible.
Role
Who you are
- We need someone who can take an idea that would otherwise become a Figma deck or a long document and turn it into something you can click on, deploy, and share — fast
- Solid software engineering fundamentals — you write code that others can read, and you know the difference between a prototype and production
- Demonstrated comfort working with coding agents and AI-assisted development tools (Cursor, Claude Code, or equivalent) as a force multiplier, not a crutch
- Experience with the open source AI stack: inference, orchestration, evaluation, or adjacent layers — you've built something real on top of open models
- Fluency in Python and/or TypeScript, with enough range to pick up whatever the project needs
- Experience building APIs, developer-facing tools, or integrations — you understand what it means to build for other builders
- A strong sense of what makes a prototype useful for a conversation, not just technically functional
- Comfort working in public — open repos, community feedback, building in the open
- Strong written communication; you can explain what you built and why, to a technical audience, without over-engineering the explanation
What the job involves
- Mozilla is building a position in open source AI — through research, community, tooling, and public advocacy. A big part of that work is showing, not just telling
- This is a project-based prototyping role, but it requires a real engineer. You'll build working demonstrations of what open AI infrastructure can do: developer surfaces, integrations, and small applications that make abstract ideas tangible and invite conversation
- You'll work in public, alongside the people building our community and social presence, so that what you build becomes part of how
- The contractor in this engagement will partner closely with the teams working on Mozilla Intelligence and Harbor, as well as community and social media leads, to create prototypes that help Mozilla show up credibly in the places where developers already gather
- The goal is not to build production systems or own a long-term product roadmap, but to produce working artifacts that spark engagement, learning, and conversation in the open source AI ecosystem
- Build working prototypes of developer surfaces, tooling integrations, and applications on top of open source AI infrastructure — with a bias toward shipping something real in days, not weeks
- Work with coding agents and AI-assisted development tools as a core part of your workflow — not as a novelty, but as the way you operate
- Translate concepts, framing documents, and strategy ideas into demonstrations that can anchor a conversation, a community event, or a piece of content
- Collaborate closely with the social media and community team so that what you build is legible and shareable — demos that developers can understand and react to, not just screenshot
- Contribute to Mozilla's open source repositories and work in the open; your code should be something the community can fork, extend, and learn from
- Stay close to the open source AI ecosystem — know what's being built, what's broken, and where a working prototype can surface a real gap or opportunity
- Help evaluate and opine on open source AI tools, stacks, and developer surfaces through the lens of someone who's actually tried to build on them
- What success looks like:
- A steady output of working prototypes that make Mozilla's open source AI work tangible and demonstrate what's possible on open infrastructure
- Prototypes that get picked up — forked, extended, written about, or used as the basis for community conversations and events
- A genuine voice in the open source AI developer community, built through what you ship and share
- Close, productive collaboration with the community and social media team so that what you build has distribution and reach
- Fixed-term, contract-based engagement
- Flexible hours and outcome-oriented working style
- Work produced through this engagement is expected to be developed in the open where appropriate, including public repositories and community-facing channels
- This opportunity is scoped around specific prototyping and ecosystem-facing deliverables, rather than a permanent employee role
Our take
Mozilla develops a range of free and open-source software, with its most familiar product being Firefox. Operated with a mission-driven, not0for-profit ethos, Mozilla champions online privacy, open standards and user-choice.
Beyond Firefox, Mozilla has focused on privacy forward offerings such as Mozilla VPN, which allows users to browse securely without being tracked. The company has also streamlined its product portfolio to concentrate on initiatives that align closely with its core mission, ensuring resources are dedicated to improving user experiences while fostering safer, more open digital environments.
Alongside this, its impact extends into the developer and tech community, having played a pivotal role in the creation of Rust, a systems programming language celebrated for its speed and efficiency. With a loyal user base, ongoing innovation, and a clear commitment to privacy and open-source principles, Mozilla remains an influential player in the technology landscape.
Freddie
Company Specialist at Welcome to the Jungle
Insights
Led by a woman
12% employee growth in 12 months
Company
Funding (last 2 of 3 rounds)
Apr 2018
$1.2m
GRANT
Jan 2005
$0.3m
ANGEL
Total funding: $3.5m
Company benefits
- Health and wellness: Mozilla covers medical, dental and vision plan premiums at 100% for U.S. and Canadian employees. Our offerings give you the options you need to manage your health — and your family’s — the way you want.
- Mental health: Mental health is as important as our physical health. That’s why Mozilla’s health benefits include therapy and coaching sessions to make sure our people have access to the care they need.
- Time away: With all of life’s demands, time away from work to disconnect and recharge is essential. In addition to country-specific holidays (12 in the U.S. and Canada), vacation and sick time start accruing right away (specifics vary by country). Everyone also takes a pause together on quarterly all-company wellness days, plus you get to celebrate the most personal holiday of all: your birthday.
- Parental leave: While Mozilla’s parental leave policies vary globally, our U.S. and Canadian-based employees can look forward to 26 weeks of paid leave for childbearing parents and 12 weeks of paid leave for non-childbearing parents.
- Financial: Mozilla is a private company, so our compensation isn’t tied to stock options or equity plans. Instead, we offer generous, performance-based bonus plans to all regular employees to underscore that we share in our success as one team. As for retirement savings for US and Canadian employees, Mozilla contributes a percentage of your eligible base salary each year to the 401(k) Plan/RRSP (regardless of whether you contribute or not), with 100% vesting.
- Learning and development: We’re big believers in learning by doing, and we also want to invest in your education and development beyond your role. Every employee is eligible for an annual professional development budget. Mozillians can put it toward technical or management training, certifications, conferences and more.
- Help when you need it: Life is full of surprises; that’s why it’s important to be prepared. Mozilla provides Life/AD&D and Short and Long Term Disability insurance (offerings may vary by locale) to ensure that you and your family will have a safety net in place should you ever need it.
- Plus a bit more: A few other benefits include a quarterly wellbeing stipend (to use on those things just for you), an employee referral bonus, internet reimbursement if you’re remote, and a budget for office essentials to make working remotely ergonomically comfortable.
Company HQ
Rincon Hill, San Francisco, CA
Leadership
Laura Chambers
(CEO)Alongside serving as the CEO at Mozilla, Laura is an Executive Fellow at Harvard Business School. Previously, she was the CEO and PResident at Willow Innovation, Director at Patelco Credit Union, and General Manager of Core Hosts & Community at Airbnb.
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