Founding Engineer

San Francisco on site Until 8/21/2026 2+ years exp First posted June 4, 2026 Last posted June 4, 2026
Job description

About the Role

Join an early-stage consumer AI startup as a Founding Engineer — a rare 1-of-1 role working directly alongside the founding team to shape both the product and engineering culture. This company is building a real-time AI-enabled platform designed to digitize human connection, making AI interactions feel genuinely present and personal. You'll help lay the technical foundation from the ground up in a fast-moving, high-ambition environment.

What You'll Do

  • Build across the full application, collaborating closely with the founder, design team, and other engineers.

  • Design and implement systems for memory, retrieval, proactivity, and AI responsiveness.

  • Integrate real-time video generation and audio synthesis models — both internal and third-party.

  • Set the bar for engineering quality and play an active role in recruiting world-class talent.

  • Extensively use the product yourself to ensure real user value and quality.

What We're Looking For

  • Required: Computer Science degree from a top university.

  • Required: 2–7 years of professional software engineering experience (not a new grad).

  • Required: Strong CS fundamentals and a track record of technically complex side projects.

  • Required: High energy, entrepreneurial spirit — prior startup or fast-moving environment experience strongly valued.

  • Required: Proficiency in Python, including typed scientific Python.

  • Bonus: Experience with real-time media, vision/video model training or deployment, memory systems, or audio synthesis.

  • Bonus: Familiarity with agentic coding or AI-assisted development workflows.

Compensation & Benefits

  • Salary: $175,000 – $225,000 USD annually

  • Visa sponsorship available

Location

This role is fully on-site in San Francisco, CA. Candidates must be willing and able to work in-person full-time.

About this role

Summary

build full application, systems for ai, video, audio, collaborate closely with team

Job title

Founding Engineer

Experience level

2+ years

Minimum experience

2+ years exp

Industry

technology

Location requirements

on-site in san francisco, CA, full-time

Salary

$175k–$225k

Management role

No

Skills & keywords

Required skills

pythoncs fundamentalssoftware engineering

Preferred skills

mediavisionvideo modelsaudio synthesisagentic coding

Specializations

full stackaimediavideoaudio
Locations

Structured locations inferred from the posting.

San Francisco, CA, USA

On-site City