Tabstack Founding GTM Lead

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 This Team and Role:

The New Products organization at Mozilla operates as an internal incubator for high-potential ventures. You will be joining Tabstack, which is operating as a fast-paced autonomous team  within the organization.

Tabstack is building the essential browser automation stack for AI agents. Our goal is to make it as simple as possible for developers to integrate fast and reliable web interactions into their AI-powered systems and agentic applications.

We are seeking a Founding GTM Lead to own early customer growth and shape Tabstack’s go-to-market strategy. You will be responsible for growing the platform and discovering and validating repeatable paths to customer acquisition. This is a 0→1 role where success is defined by learning velocity, customer signal, and commercial traction. 

The ideal candidate has the heart of a developer but the mindset of a founder. You are comfortable in a '0 to 1' environment with minimal support, eager to experiment, and willing to get your hands dirty in everything from writing integration docs to negotiating contracts.

• Drive Customer Acquisition & GTM ExperimentsDesign and run early go-to-market experiments to discover repeatable ways to reach high-intent audiences. This includes scrappy, high-signal tactics such as targeted outreach, ecosystem engagement, founder-led sales, and experimentation with messaging and channels while prioritizing learning and signal over scale.
• Own Messaging, Positioning & Meaningful Technical ContentCraft the core narrative and value proposition. You will lead the content marketing strategy, experimenting with different messages across blogs, landing pages, and use cases to see what drives adoption. You will identify the most compelling stories and collaborate with the engineering team to ensure technical accuracy, while you focus on optimizing the funnel and communicating the 'why' behind Tabstack to drive conversion.
• Establish Commercial Validation & Sales: You will help secure our first wins. Whether this is closing paid contracts or securing committed design partners, you are responsible for proving the commercial viability of the product.
• Generate Product Feedback Loops: You are the frontline researcher. You will translate customer objections and friction points into structured feedback for the engineering and design teams to prioritize the roadmap.

• 5+ years of relevant experience: A mix of Product Marketing, Technical Sales, Founder experience, or Developer Relations with a heavy focus on revenue/growth.
• Technical Fluency: You must be able to speak the language of AI engineers. You don’t need to be a core contributor, but you should understand the mechanics of browser automation, APIs, and the current LLM landscape.
• The 'Hustle' of a Founder: Experience working in early-stage startups or new product incubators. You know how to generate leads without a massive marketing budget.
• Strong Communication Skills: Proven ability to produce clear, accessible technical writing (docs, blogs) and persuasive business communications (decks, outreach emails).
• Deep Industry Knowledge: Understanding of the modern AI stack (LangChain, LlamaIndex, vector DBs) and the browser automation space (Puppeteer, Playwright, Selenium).

Commitment to our values:

• • Welcoming differences
  • Being relationship-minded
  • Practicing responsible participation
  • Having grit

• Experience as a technical founder or early employee at a DevTools company.
• A past body of published technical work: conference talks, tutorials, or videos where you communicate complex concepts.
• Existing relationships with key startups and enterprise tech teams in the AI ecosystem.
• Familiarity with open source business models and the 'tech for good' ecosystem.

• 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: C

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Req ID: R3028

Hiring Ranges: