Principal Machine Learning Engineer jobs in 2026 — required skills, demand trends, and top hiring cities
As of 2026-05-23, Skillenai has indexed 29 job postings with the title “Principal Machine Learning Engineer” over the past 90 days. The skill mentioned most often is machine learning, with demand down 63% vs the prior 4 weeks.
Last updated · 90d ending 2026-05-23
Get a daily email digest of new Principal Machine Learning Engineer jobs
Skillenai aggregates principal machine learning engineer jobs from across the open web. Click below and we'll open a pre-filled daily digest — change the cadence to hourly or weekly if you prefer, then save. Free account required (~30 seconds).
Frequently asked questions about Principal Machine Learning Engineer jobs
+How many Principal Machine Learning Engineer jobs are being posted in 2026?
Skillenai has indexed 29 job postings with the title “Principal Machine Learning Engineer” over the 90 days ending 2026-05-23, with demand down 63% vs the prior 4 weeks.
+What skills do Principal Machine Learning Engineer jobs require?
Across Principal Machine Learning Engineer postings indexed by Skillenai over the 90 days ending 2026-05-23, the skills mentioned most often are machine learning, PyTorch, Python, deep learning, TensorFlow.
+Which cities are hiring the most Principal Machine Learning Engineer?
As of 2026-05-23, Principal Machine Learning Engineer postings indexed by Skillenai are concentrated in Sunnyvale, London, Palo Alto, Bengaluru, Boston.
+Is Principal Machine Learning Engineer a good career path right now?
Skillenai indexes 29 Principal Machine Learning Engineer postings over the 90 days ending 2026-05-23, with demand down 63% vs the prior 4 weeks. The skill mentioned most often in Principal Machine Learning Engineer postings is machine learning, so building it gives the strongest signal that an applicant matches the role.
+How can I track new Principal Machine Learning Engineer job postings as they’re indexed?
Skillenai sends a daily email digest of new Principal Machine Learning Engineer postings indexed across the open web. Subscribe from your account dashboard after creating a free Skillenai account.
Weekly Principal Machine Learning Engineer postings — last 90 days
Skills most often required for Principal Machine Learning Engineer
| Name | Postings | Share |
|---|---|---|
| machine learning | 22 | 19.1% |
| PyTorch | 16 | 13.9% |
| Python | 14 | 12.2% |
| deep learning | 12 | 10.4% |
| TensorFlow | 7 | 6.1% |
| JAX | 6 | 5.2% |
| MLOps | 5 | 4.3% |
| SQL | 5 | 4.3% |
| computer vision | 5 | 4.3% |
| scikit-learn | 4 | 3.5% |
| Kubernetes | 4 | 3.5% |
| GPU optimization | 4 | 3.5% |
| Large language models (LLMs) | 4 | 3.5% |
| feature engineering | 4 | 3.5% |
| LoRA | 3 | 2.6% |
Top metros hiring Principal Machine Learning Engineer
| Name | Postings | Share |
|---|---|---|
| Sunnyvale | 3 | 23.1% |
| London | 2 | 15.4% |
| Palo Alto | 2 | 15.4% |
| Bengaluru | 1 | 7.7% |
| Boston | 1 | 7.7% |
| China | 1 | 7.7% |
| El Segundo | 1 | 7.7% |
| Gurugram | 1 | 7.7% |
| Hong Kong | 1 | 7.7% |
Don't miss a new Principal Machine Learning Engineer posting
Same one-click setup as above, plus you can pull the underlying data into your own coding agent via the Skillenai API.
Explore related pages
How this was computed
Counts derive from the Skillenai jobs index over the 90 days ending 2026-05-23, matching postings whose canonical role is “Principal Machine Learning Engineer”. Pages refresh weekly (or daily for the top-50 most-posted roles).
- role
- Principal Machine Learning Engineer
- source
- Skillenai jobs index, deduplicated daily
- data_as_of
- 2026-05-23
- window_days
- 90
The demand, skills, and geo numbers on this page come from the same Skillenai labor market index that powers our API. Use it for compensation benchmarking, hiring-competition analysis, and skill-adoption tracking.
Skillenai for recruiters →