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# Principal Software Engineer

- **Company:** CALIBREX INC.
- **Location:** New York, NY, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Applications Architecture, Code Review, Software Debugging, Software Engineering, System Availability
- **Published:** November 8, 2026
- **Apply:** https://www.juju.com/job/28_25197_632be873b4bda0bee5d001f29423b98d

## About the Role

* 8+ years of professional software engineering experience, including ownership of production systems at meaningful scale
 * A demonstrated track record of architecting, building, and operating a complex application or platform through growth
 * Excellent systems-design judgment across application architecture, APIs, data, infrastructure, reliability, security, and performance
 * Ability to make pragmatic technical trade-offs with incomplete information, balancing speed, simplicity, and long-term maintainability
 * A deeply hands-on approach to building, debugging, reviewing, and improving production software
 * Experience setting engineering standards and guiding other engineers through design reviews, code reviews, and technical decisions
 * Strong written and verbal communication, including the ability to explain technical choices clearly to founders and non-technical partners
 * Comfort working in a high-autonomy environment where priorities and product requirements evolve quickly, * Built or substantially evolved a product used at significant scale
 * Led a major architectural migration or modernization
 * Worked in an early-stage or high-growth company
 * Designed systems for high availability or sensitive user data
 * Established effective AI-assisted engineering workflows with strong verification practices