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Role description

Senior Software Engineer

Orthogonal logoOrthogonalYC W26
Interview process shared
TypeFull-time
SenioritySenior
SponsorshipNo visa sponsorship
LocationSan Francisco, CA
Posted11/2/2026
Engineering

Orthogonalis the discovery, orchestration, and payment layer for the internet. Through a single integration, agents can discover new capabilities, access services instantly, and pay for them seamlessly.

Founded by a team that built at the intersection of payments, APIs, infrastructure, and AI at Coinbase, Vercel, Google, and Amazon Robotics. We've raised a $4.3 million seed round, led by Pantera Capital and backed by Y Combinator, Pioneer Fund, Decasonic, Blast, Outbound, Surreal by Premise, and other strategic investors.

What you'll do

You would be one of the first engineering hires, working directly with the founders—Full-stack IC work: We work in Vercel with a TypeScript backend and a Next.js frontend. We use Postgres as our database.

  • 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

What we're looking for

  • 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

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.)

Interview Process:

  1. Intro conversation with our recruiting team

  2. Conversation with a Co-Founder

  3. Technical interview

  4. Work trial / Onsite

  5. Offer

Relevant archetypes

Apply on Y Combinator
Save

Company info

Orthogonal logo

Orthogonal

Agentic Payments for APIs

SeedYC W26Brand new
Founded2025
Size1–10 employees
Unlock human wisdom
ThesisTermsPrivacy
Industry
Technology, Information and Internet
Funding
  • Seed · Jun 22, 2026

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