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Senior Software Engineer

San Francisco💼 Full-time💰 $185,000–$185,000🗓 2026-07-08 → 2026-07-31

Core

Building scalable APIs and asynchronous event-based architecture for AI verification products serving millions of users across industries like car rental, short-term rentals, and online dating.

Role type

Senior Full Stack Software Engineer (Startup)

Builds

End-to-end applications, scalable APIs, and asynchronous event-based systems for risk signal delivery.

Domain

Fintech / Identity Verification / AI

Deliverable

production ML models | product features | infrastructure

Required skills

Ruby (Rails), Javascript (React), API design, asynchronous architecture, testing, product experimentation, startup founding experience

Preferred skills

Scalable technical architecture (10mm+ users), observability, container orchestration, data analysis, scraping technology

Technologies

Ruby, Rails, Javascript, React

Responsibilities

Design and launch new products with end-to-end ownership; Build and improve APIs integrating third-party services; Maintain code reliability with testing and reviews; Run product experiments to guide development; Build scalable APIs handling high traffic.

Seniority

Senior, hands-on IC

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