Senior Full-Stack Engineer - Web

SweatPals

SweatPals

San Francisco, CA, USA
USD 140k-220k / year + Equity
Posted on Jul 14, 2025
About SweatPals

SweatPals is the community-first fitness platform that turns workouts into social adventures. Backed by a16z speedrun, Patron, Kevin Hart, and other world-class investors such as founders of Instacart and Dreamworks Animations, we connect hundreds of thousands of “Pals,” hosts, and gyms through events, memberships, and rich social features. We’re still scrappy at heart, but we’re scaling fast—and personalized, intelligent experiences are central to our next chapter.

What You’ll Do

  • Own end-to-end development of features across our web stack — from design to production support
  • Work across React (frontend) and NestJS (backend) in a TypeScript monorepo
  • Design and document APIs (REST and GraphQL) consumed by web and mobile clients
  • Build scalable systems with PostgreSQL and cloud-native patterns (AWS / GCP)
  • Improve developer experience and system reliability through better tooling, observability, and CI/CD
  • Collaborate closely with product, design, and community teams to deliver features that power growth and engagement
  • Help shape architecture decisions and tech strategy as we scale

What We’re Looking For

  • 4+ years experience building full-stack web applications in production
  • Strong TypeScript skills across both frontend and backend
  • Deep experience with React and NestJS (or similar frameworks like Express)
  • Solid understanding of PostgreSQL, including performance tuning and indexing
  • Comfort with cloud environments (AWS, GCP, or Azure) – provisioning, permissions, automation
  • Familiarity with CI/CD workflows and tooling
  • Experience owning and shipping features end-to-end in a startup or fast-moving environment
  • Clear, collaborative communication style

Bonus Points

  • Experience with monorepos (e.g., Turborepo, Nx)
  • Familiarity with job queues, background workers, or async systems
  • Understanding of observability tools (logs, metrics, tracing)
  • Interest in community, fitness, or creator platforms

Why Join Us

  • Shape the future of a fast-growing consumer + host platform
  • Work with a mission-driven, fun, and scrappy team that loves shipping
  • Competitive salary, early-stage equity, and wellness perks

What Makes SweatPals Special

  • Real impact: You’ll shape how people find belonging through movement.
  • Top-tier investors & teammates: Backed by a16z speedrun, Kevin Hart, and more—but still small enough that you’ll directly shape the future.
  • Great perks: Competitive salary, equity, wellness stipend, unlimited event credits on SweatPals.

Our Values

  • Celebrate Diversity: We embrace different backgrounds, opinions, and ways of thinking. We don’t just welcome disagreement—we believe it makes the product better.
  • Be a Leader: We take initiative, speak up, and drive things forward—no matter your title. Leadership is a mindset, not a level.
  • Roll Up Our Sleeves: We do what it takes. No job is too small when we’re building something big.
  • Embrace Adventure: We stay curious, push boundaries, and see challenges as opportunities. Startups are a rollercoaster—and we’re here for the ride.

Ready to build the product the fitness world’s been waiting for?

Compensation Range: $140K - $220K