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Founding Software Engineer

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Founding Software Engineer
Key Technology

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San francisco, California, United States
Classification symbol Information Technology
H-1B
Salary
200000 - 275000 USD /YEAR
Job posted on June 9, 2025
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Job Description:
About the Company Ready to shape a game-changing AI startup?
Join our elite, <10 person team as a Senior Engineer and define the backbone of our cutting-edge platform.
We’re processing multimodal data - text, images, video, audio - at lightning speed, with $320K ARR in 3 months and a $5M goal by year-end. Backed by Founders Fund ($3.8M seed) from top AI Labs/
About the Role We’re looking for a backend wizard to scale our infrastructure and lead the charge.
  • Build scalable backend systems (Python preferred) for end-to-end data workflows.
  • Design APIs and optimize cloud infra (AWS, Google Cloud) with vector databases.
  • Iterate fast in a 996-style, risk-tolerant environment, owning complex systems.
  • Lead and recruit, tapping your Bay Area network to grow our team.


Qualifications
  • 4+ years backend experience, with 2+ years at a high-growth startup (e.g., xAI, Anthropic).


Required Skills
  • Python expert (or Node.js), obsessed with iteration speed.
  • Skilled in cloud platforms and API development.
  • Thrives in intense, in-person work (Bay Area, hybrid, 3+ days/week).


Preferred Skills
  • Bonus: Founding engineer/CTO experience, YC startup background, or AI/LLM exposure.


Pay range and compensation package
  • Rewards: $220K - $270K base, 10% bonus, 0.75- 1.5% equity, H-1B sponsorship.


Equal Opportunity Statement Equal Opportunity Employer. We crave diversity and bold innovators.
Ready to Go All-In? Apply with your resume and let’s build massive together!
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