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Software Engineer

Harnham · San Francisco Bay Area

Software EngineeringHybrid

About this role

As a Principal Software Engineer and Product Architect, you will work directly with the CTO to build GenAI and agentic workflows on top of proprietary datasets. The role is a highly hands-on builder role focused on designing systems from scratch and bringing AI-powered ideas into production. You will design and ship end-to-end features across backend and frontend systems, and own growth and engagement systems. The technical environment involves a most likely a fast-moving, founding-level impact on new AI initiatives. The tech stack includes Python, Django, React, TypeScript/JavaScript, AWS, PostgreSQL, and OpenAI/LLMs. You will help define platform architecture and technical direction.

Skills & technologies

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PRINCIPAL SOFTWARE ENGINEER – GENAI & PRODUCT ARCHITECT


$280K–$350K (Base + Bonus) + Equity


Hybrid – Bay Area (3 Days/Week)


The Opportunity

Join a profitable, fast-growing platform in a specialized, mission-driven domain as a founding-level engineer working directly with the CTO.


This is a highly hands-on builder role focused on designing systems from scratch, shipping quickly, and bringing AI-powered ideas into production.


What You'll Do

  • Build GenAI and agentic workflows on top of proprietary datasets
  • Design and ship end-to-end features across backend and frontend systems
  • Develop AI-driven solutions for search, personalization, and recommendations
  • Own growth and engagement systems, including:
  • Email delivery
  • User targeting
  • Experimentation platforms
  • Prototype new ideas, test with real users, and iterate rapidly
  • Help define platform architecture and technical direction


Tech Stack

  • Backend: Python, Django
  • Frontend: React, TypeScript/JavaScript
  • Cloud: AWS
  • Database: PostgreSQL
  • AI: OpenAI, LLMs, and related AI tooling


What They're Looking For

  • 6–10+ years of software engineering experience (Staff/Principal caliber)
  • Strong Python backend and React frontend experience
  • Experience building and scaling systems on AWS
  • Exposure to AI, LLMs, or data-driven products
  • A true builder mindset — hands-on, fast-moving, and comfortable with ambiguity


Why This Role

  • Founding-engineer level impact on new AI initiatives
  • Direct partnership with the CTO and senior leadership
  • Profitable company with strong growth and stability
  • High ownership, fast iteration, and real user impact
  • Opportunity to help shape the future of an AI-driven product platform
$280,000–$350,000 / yearApply now

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