# Staff Software Engineer at Affinity

- Company: Affinity
- What the company does: Affinity helps private equity and VC firms source deals, manage relationships, and close faster with AI-powered relationship intelligence and automated data capture. Backed by Y Combinator.
- Company website: https://itsaffinity.com
- Type: Startups
- Level: Senior
- Location: United States
- Work setup: On-site
- Posted: 2026-09-25
- Apply by: 2026-11-23
- Apply: https://jobs.ashbyhq.com/affinity.co/2fe0aaee-21c3-4dac-914b-59161cc044d3?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/affinity-staff-software-engineer/

## About the role

Set and own the technical direction for a core product domain, including the architecture decisions, the sequencing, and the tradeoffs you choose to make and defend Lead complex, multi-quarter initiatives end to end, breaking ambiguous problems into work other engineers can pick up and run with Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- 10+ years building and shipping production software as a full-stack engineer, with a track record of technical leadership on ambiguous, high-stakes projects
- Demonstrated impact beyond your own team, whether that's through architecture other teams build on, standards you established, or engineers you grew
- Experience building product features on top of LLMs or agent frameworks, including how you evaluated and monitored them
- Strong server-side experience with modern OOP practices, we use Ruby and PostgreSQL, and we're open to candidates with deep expertise in a comparable stack who are motivated to pick ours up
- Experience building component-based interfaces with React and TypeScript
- Deep understanding of relational databases, including designing systems that scale and diagnosing performance bottlenecks before they reach customers

Tags: Engineering

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/affinity-staff-software-engineer/