Staff Backend Engineer

• fomo is a trading app for the rest of us. Sign up in seconds and start trading right away, with no prior experience needed. Our social features are actually useful: follow top traders, see their full portfolios and trades, and find opportunities early. Under the hood, we deliver best-in-class execution and data for experienced traders.

• In just over a year, fomo has onboarded over 3.4 million plus users who have collectively done over $28 billion dollars in trading volume.

• fomo has made over $100M of revenue since launching in May 2025, and has raised a total of ~$100M in addition from T1 investors. Investors include Benchmark, Index Ventures, and Union Square Ventures.

• https://fomo.family/

• https://x.com/fomo

• You’ll be joining a team of 12 on the engineering side: 4 frontend engineers, 8 backend engineers. Everyone on the team has experience building at scale from companies like Google, Pinterest, Snap, Two Sigma, Square, and dYdX. We have high standards for ourselves and the people we work with.

Want to learn more about the team, our growth, and life at fomo? Check out our Work at fomo page.

• Backend engineers at fomo work on a little bit of everything across all areas of the business - from trading infrastructure to social network scaling. Things we’re working on include:

  • Trade execution and infrastructure

  • Trade data ingestion and portfolio tracking

  • Social network trust and safety

  • Analytics data ingestion and analysis

  • Infrastructure scaling and optimization

  • Constantly refining the user experience, tap by tap and trade by trade

• Our stack is primarily written in Typescript with some purpose-specific micro-services.

• Engineers at fomo aren’t constrained to any specific area - while this is primarily a backend opening, we encourage our backend engineers to contribute to the frontend when it makes sense (and vice-versa).

• This role is in-person in NYC. We have a strong in-person culture and just moved into a new spacious office in Soho.

• Staff+ level engineer (6+ years of experience), able to come up with and execute on plans autonomously

• Has worked at scale on consumer products with hundreds of thousands of users

• Full-stack (React) experience is a plus

Being able to connect with customers and understanding the full stack of the product is something we value at fomo. All of our engineers think about improving our user experience and use the app to better understand what to improve.

Compensation and benefits

fomo offers:

• Competitive cash compensation and equity

• Comprehensive health insurance including medical, dental, and vision for you and your dependents; including tax savings benefits such as HSAs and FSAs

• 401(k) with match

• Group term life insurance

• Flexible time off

• Annual company offsites

Equal opportunity

fomo is an equal opportunity employer. We consider qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, disability, veteran status, or any other characteristic protected by applicable law. If you need a reasonable accommodation during the hiring process, please let us know.