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Principal AI Engineer -Enfi

Unusual — Market to AI agents

Boston, Massachusetts Senior+ Posted Feb 19, 2026
Apply on Unusual's site Tailor your résumé to this job

About the role

Overview We’re looking for a Senior Principal AI Engineer to provide hands-on technical leadership across complex, production-grade AI systems. This role is for a builder-architect—someone who has repeatedly taken AI systems from idea to…

What the index says about this role

  • First seen by JobLarper — Sep 12, 2026, 35 days ago. Older postings collect hundreds of applicants — a tailored résumé matters more the longer a role has been live.
  • No pay range in our index for this listing. Across 259 indexed Machine Learning Engineer roles in US that do publish one, the middle half sits between $220k and $300k, median $257k — JobLarper's read of the market, not a figure from Unusual.
  • What Machine Learning Engineer roles ask for — across 1,199 indexed openings: ML (73%), AI/LLM (55%), Python (52%), REST/APIs (37%), Backend (21%).
  • Unusual is hiring actively — 5 open roles indexed, 3 first appeared in the last 30 days.

Derived from the 28,483 roles JobLarper indexes daily from official company boards — not from the job description above.

⚡ JobLarper watched this role appear on Unusual's official board on Feb 19, 2026. Sign up free to get alerted minutes after roles like this go live, and tailor your real résumé to the exact description — nothing invented.

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