# Senior Backend Software Engineer at Twenty

- Company: Twenty
- What the company does: The #1 Open Source CRM for modern teams. Modular, scalable, and built to fit your business. Backed by Y Combinator.
- Company website: https://twenty.com
- Type: Startups
- Level: Senior
- Location: Arlington, VA
- Work setup: On-site
- Pay: $159K to $263K base salary per year (USD)
- Posted: 2026-03-23
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/twenty/1a3c833f-892b-4fcb-bf30-9596be634cad
- Page: https://www.1752.vc/careers/jobs/twenty-senior-backend-software-engineer/

## About the role

Design and implement scalable backend services in Go that improve operator decision-making and response. Build high-performance APIs that power customer-facing workflows and internal platform capabilities.

## What they're looking for

- You care about building systems that have real-world impact, especially in national security and defense of democracies
- You’re excited by hard backend problems: throughput, latency, correctness, and operability under pressure
- You take pride in clean interfaces—APIs that are intuitive, consistent, and built to evolve
- You think in systems: data models, services, and workflows that work together reliably
- You’re pragmatic and iterative—ship value quickly, then harden, measure, and improve
- You collaborate well across disciplines, communicate clearly, and welcome direct feedback

Tags: Engineering