Staff Backend Engineer

About fomo

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 million plus users who have collectively done over $14 billion dollars in trading volume.

fomo has made ~$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

About the team

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.

About the role

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.

Minimum Qualifications

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

Nice to Haves

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.