Principal Software Engineer - Equity & Mentorship, Impact

Renaissance Technologies, Inc.; Alexandria (VA); On-site; USD 191,000 - 267,000; Full time

Benefits offered by this job

Equity participation

Mentorship from technology leaders

Job summary

Renaissance Technologies, Inc. is seeking a Principal Software Engineer in Alexandria, VA. The role offers ownership and mentorship from accomplished technology leaders, with a salary range of $191,000–$267,000 and equity participation.

Live in Alexandria, VA and contribute to high-impact projects, collaborating across teams to deliver scalable, performant software. The position emphasizes fast delivery, rigorous testing, and measurable impact from week one.

Qualifications

• 8+ years owning outcomes, not just completing tasks.
• Experience leading cross-functional teams in a principal capacity.
• Strong communication and collaborative mindset.
• Ability to learn new tech quickly and apply it.

Responsibilities

• Sketch the Emotional Intelligence architecture and defend it in review.
• Shave milliseconds off the technology hot path.
• Reproduce and fix no-ego bugs from field reports.
• Translate MySQL metrics into leadership-ready charts.
• Optimize app performance, latency, and resource use at scale.
• Ship Vue.js experiments quickly and discard the losers.
• Stress-test EI systems and harden weaknesses.

Skills

Effective communicator

Collaborative mindset

Empathy

Outcome ownership

Reliability

Fast learner

Cross-functional leadership

Tools

Vue.js

MySQL

Job description

Renaissance Technologies, Inc. is seeking a Principal Software Engineer in Alexandria, VA. The role offers ownership and mentorship from accomplished technology leaders, with a salary range of $191,000–$267,000 and equity participation.

Live in Alexandria, VA and contribute to high-impact projects, collaborating across teams to deliver scalable, performant software. The position emphasizes fast delivery, rigorous testing, and measurable impact from week one.