Principal Software Engineer

Filetwigbay; Salinas (CA); On-site; USD 186,000 - 286,000; Full time

Job summary

Millennium Management in Salinas, CA seeks a Principal Software Engineer to own critical Flask service work, testing, and rollout across California. You will scale pilot efforts, improve test automation, and partner with data teams to surface insights from production systems.

Django feature flags enable safe traffic testing and risk-managed delivery. The role emphasizes mentorship, rigorous judgment, and a strong commitment to quality, with a competitive compensation range and a flexible

Qualifications

• CA work history or ability to thrive locally in California.
• Customer-focused mindset with strong interpersonal skills.
• Judgment to elevate issues or retain when appropriate.
• Ability to own mistakes and flag them honestly.

Responsibilities

• Apply Unit Testing and Flask to solve engineering challenges.
• Scale Flask services from Salinas pilot to CA-wide rollout.
• Enhance test automation frameworks to improve release confidence.
• Collaborate with data teams to surface production insights.
• Wire Django feature flags for safe Salinas traffic testing.
• Backfill analytical thinking test coverage in risky code areas.

Skills

CA work history

Customer-focused outlook

Principal-caliber judgment

Integrity to flag mistakes

Tools

Flask

Django

Unit Testing

Test Automation

Job description

Between the demo that wows and the system that survives sits the Principal Software Engineer we're recruiting in Salinas, and Millennium Management pays $186,000 - $286,000 for the difference. Set the $186,000 - $286,000 aside a moment and the technology ownership alone makes this Millennium Management job worth a serious look.

Key Responsibilities

• Apply Unit Testing and Flask to solve fast-moving engineering challenges
• Scale Millennium Management's Flask services from Salinas pilot to CA-wide rollout
• Enhance test automation frameworks to increase release confidence
• Work closely with data teams to surface insights from production systems
• Wire up Django feature flags so Millennium Management can test on Salinas traffic risk-free
• Backfill Analytical Thinking test coverage on the riskiest corners of Millennium Management's codebase

What You’ll Bring

• A CA work history, or strong reasons you'll thrive here anyway
• Customer-focused outlook with strong interpersonal skills
• Principal-caliber judgment about when to elevate and when to retain
• The integrity to flag your own mistakes first

Founded in Salinas, CA during a downturn, Millennium Management grew clarity-seeking and lean while flashier technology rivals burned out. Learning out loud is encouraged here, so share the Mentoring rabbit hole you fell down yesterday.

We answer the money question first with $186,000 - $286,000, then keep going with growth budgets, mentorship, and a flexible contract schedule.

Live feed: the Salinas, CA role remains unfilled and actively recruiting.