Principal Software Engineer

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

Help us reimagine how millions of people interact with technology as our newest Principal Software Engineer in Alexandria, VA. This principal role pairs a $191,000 - $267,000 salary with hands‑on ownership, a collaborative team, and clear opportunities to level up.

Key Responsibilities

• Sketch the Emotional Intelligence architecture, defend it in review, then build the thing
• Shave milliseconds off the technology hot path that Renaissance Technologies users feel every click
• Reproduce the no-ego bug from the Alexandria field report, then make it impossible again
• Translate MySQL metrics into the one chart Renaissance Technologies leadership checks each morning
• Optimize application performance, latency, and resource utilization at scale
• Ship Vue.js experiments fast, kill the losers, and double down on what sticks
• Stress-test Emotional Intelligence systems until they bend, then harden where they cracked

What You'll Bring

• A communicator who writes the meeting recap nobody asked for but everyone reads
• A collaborator's reflex to share credit and absorb blame
• Practical Empathy skills sharpened in a freelance setting
• 8+ years owning outcomes, not just completing tasks
• The reliability that lets a manager stop checking in
• Ability to learn new technology systems quickly and apply them effectively
• Experience supporting cross‑functional teams in a principal capacity

The entrepreneurial people at Renaissance Technologies have spent years proving that world‑class Empathy can absolutely come out of Alexandria. New hires ship something real in week one, because we'd rather you learn by doing.

Renaissance Technologies rewards your quietly‑relentless work with $191,000 - $267,000, equity participation, and mentorship from accomplished technology leaders.

Live in Alexandria, VA as of this hour, with reviews ongoing.