Senior Software Engineer
Hybrid (SF)$0Full-timePosted 1w ago
About the role
Senior Software Engineer role at Orthogonal, a payments/AI-enabled API platform. You’ll be an early engineering hire working directly with the founders on full-stack development (TypeScript backend, Next.js frontend) with Postgres, focusing on fast shipping, scalability, and reliability.
Responsibilities
- Collaborate across research, product, and design to ship features quickly
- Write clean, maintainable code and contribute to documentation
- Participate in code reviews and design discussions
- Solve real-world scalability and reliability challenges
- Own features end to end, including deployment, monitoring, and production support
- Mentor teammates and contribute to engineering best practices
Qualifications
- 5+ years of full-stack experience with a high-growth company
- Background in startups or a fast-paced product environment
- Solid grasp of data structures, system design, and API design
- Experience leading projects or mentoring engineers
- Bias toward ownership, curiosity, and delivering simple solutions to complex problems
- Based in SF or willing to relocate
- Value autonomy over process
- Bonus: Experience in payments/crypto
Skills
Required:Full-stack developmentAPI design
Benefits
- Generous equity grant vested over 4 years
- Flexible work schedule and open vacation policy
- Access to medical, dental, and vision plans
- Wellness and commute stipends
- All the tools you need (laptop, monitor, etc.)
Last updated Oct 15, 2026. Interested? Apply on the company site.

About Orthogonal
Agentic Payments for APIs
APIs weren't built for agents. Orthogonal fixes that. We enable agentic payments so any agent can instantly discover, access, and pay for hundreds of APIs. No subscriptions, no sales calls, just pay per use. API providers list once and get paid every time an agent calls their API.
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