Six Figure Work

Founding Member of Technical Staff

proofofhuman

Company websitepoh.org (proofofhuman, opens in new tab)

Base salary $120K  to $150K

Employer-published annual base salary, USD. Advertised base range in San Francisco, CA

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  • LocationSan Francisco, CA
  • WorkplaceOn-site
  • Status at last checkSource accepting applications when checked
  • Last checked (3 h ago) · observed since

About this job

About Proof of Human

Proof of Human is a research and deployment company building the proof-of-human layer in digital identity. Proof of Human seeks to produce high-impact research and to productize this research in bot detection, fraud prevention, and continuous authentication.

Proof of Human was founded in 2023 by two Princeton PhD scientists – Mayank Agrawal and Matt Hardy. They have published in Science, PNAS, Nature Human Behaviour, and Psychological Review and are backed by Y Combinator and Brickyard Ventures.

About the role

Proof of Human provides frictionless, continual human verification. We’re looking for an exceptional engineer to join our team. This engineer will work on full-stack web development and research, with a focus on backend and cloud infrastructure.

What you’ll do:

  • Architect and Develop: Design and build scalable backend infrastructure (AWS, Node, Python) optimized for handling millions of sessions per minute with minimal latency.

  • Lead Feature Development: Own end-to-end delivery of key product features, from initial concept through deployment and support.

  • Technical Roadmapping: Directly influence engineering strategy and decisions through close collaboration with the technical team.

  • Partner Cross-functionally: Work closely with the rest of the team to deliver features aligned with business objectives.

  • Cutting Edge Research: You also may assist the team in writing scientific articles summarizing our work for publication at top venues (e.g. Science, NeurIPS, ICML).

Who you are:

  • 3+ years of experience in software development would be ideal.

  • Strong backend web development skills with experience going from problem to deployment.

  • Proficiency in both web development (Javascript, Node.js) and Python.

  • Experience building cloud infrastructure (AWS, GCP, Azure) at scale.

  • Excited by working on a small team where your contributions have an outsized impact.

  • Strong quantitative background and an eagerness to learn. Research experience is a plus.

If you’re interested in joining a rapidly growing, cutting-edge AI security company that is protecting the future of online integrity, we’d love to talk.

Source: proofofhuman on Ashby · View original posting (opens in new tab)

Pay in context

This role's base floor ($120,000) is above 5% of the 5,063 Software Engineering roles in California listed on this site; 58 others list the same floor. Their median floor is $176,600; the middle half runs from $149,365 to $204,000.

Only jobs on this site count, and each one publishes a base salary of $100,000 or more, so this compares six-figure jobs with each other, not with the whole market. Computed Nov 8, 2026.

Observed changes

  1. First observed on the employer's board
  2. Began meeting the published-salary criteria
Observed since
Employer-stated posting date
2026-09-11
Where this pay comes from

Location as the employer wrote it: San Francisco

USD 120,000 – 150,000 · 1 YEAR · Salary

Method
Structured pay field published by the employer
Checked
Rule set
us-base-v2

The employer's job board publishes this pay as a dedicated data field. We read the field directly; no interpretation was needed.

What we verified

  • The pay figures come from the employer's own listing, quoted exactly above.
  • The pay is an annual base salary in US dollars with a minimum of at least $100,000.
  • The role was publicly listed on the employer's job board when last checked.

We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.

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