data preprocessing jobs in 2026 — demand, top roles hiring, and related skills
As of 2026-09-28, data preprocessing appears in 423 job postings indexed by Skillenai over the past 90 days — Data Scientist has the most postings mentioning data preprocessing, with demand down 9% vs the prior 4 weeks.
Last updated · 90d ending 2026-09-28
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Frequently asked questions about data preprocessing
+Is data preprocessing in demand in 2026?
Yes. data preprocessing appears in 423 job postings indexed by Skillenai over the 90 days ending 2026-09-28, with demand down 9% vs the prior 4 weeks. Data Scientist accounts for the most postings mentioning data preprocessing (17.5% of all postings mentioning data preprocessing).
+What jobs require data preprocessing?
According to the Skillenai jobs index over the 90 days ending 2026-09-28, among roles with at least 20 postings, the highest shares mentioning data preprocessing are AI / ML Engineer (13.7% of that role’s postings mention data preprocessing), Data Science Intern (9.8% of that role’s postings mention data preprocessing), AI Research Intern (9.1% of that role’s postings mention data preprocessing).
+What skills are commonly paired with data preprocessing?
Across job postings indexed by Skillenai (90 days ending 2026-09-28), data preprocessing most often appears alongside Python, machine learning, PyTorch, TensorFlow, feature engineering.
+Where is data preprocessing most in demand?
As of 2026-09-28, the metro areas posting the most jobs requiring data preprocessing are Singapore, San Francisco, Toronto, Bengaluru, New York City, according to the Skillenai jobs index.
+How can I keep up with new data preprocessing content and jobs?
Skillenai indexes news, blog posts, and research papers mentioning data preprocessing alongside the jobs index. You can subscribe to a daily email digest of new data preprocessing content from your Skillenai account.
Weekly job postings requiring data preprocessing — last 90 days
Salary distribution
Box = 25th–75th percentile · tick = median · whisker = 10th–90th · USD, annualized
Roles most likely to require data preprocessing
Among roles with at least 20 postings in the same period.
| Role | Postings mentioning skill | % of role postings mentioning skill |
|---|---|---|
| AI / ML Engineer | 7 | 13.7% |
| Data Science Intern | 4 | 9.8% |
| AI Research Intern | 2 | 9.1% |
| Applied Research Scientist | 2 | 7.7% |
| Product Software Engineer | 4 | 6.6% |
| ML Researcher | 2 | 6.2% |
| Generative AI Engineer | 3 | 5.8% |
| Applied Data Scientist | 2 | 4.7% |
| GenAI Engineer | 2 | 4.5% |
| AI/ML Scientist | 1 | 4.3% |
Roles with the most data preprocessing postings
| Role | Postings mentioning skill | Share of skill postings |
|---|---|---|
| Data Scientist | 74 | 17.5% |
| Machine Learning Engineer | 60 | 14.2% |
| ML Engineer | 31 | 7.3% |
| AI Engineer | 27 | 6.4% |
| Software Engineer | 26 | 6.1% |
| Data Analyst | 19 | 4.5% |
| AI / ML Engineer | 7 | 1.7% |
| AI Evaluation Specialist | 7 | 1.7% |
| AI/ML Engineer | 7 | 1.7% |
| Research Engineer | 7 | 1.7% |
Top metros hiring for data preprocessing
| Name | Postings | Share |
|---|---|---|
| Singapore | 14 | 3.3% |
| San Francisco | 11 | 2.6% |
| Toronto | 11 | 2.6% |
| Bengaluru | 10 | 2.4% |
| New York City | 10 | 2.4% |
| London | 8 | 1.9% |
| San Jose | 7 | 1.7% |
| Broken Bow | 6 | 1.4% |
| Hyderabad | 6 | 1.4% |
Skills commonly paired with data preprocessing
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How this was computed
Counts derive from the Skillenai jobs index over the 90 days ending 2026-09-28. Skills are resolved against the Skillenai canonical taxonomy, so the same entity is counted whether a posting writes 'Python', 'Python 3', or 'python'. Role prevalence divides postings mentioning data preprocessing by all postings for each role in the same window, ranking roles with at least 20 postings. Role distribution divides each role’s data preprocessing postings by all data preprocessing postings, including postings without a role. Shares need not sum to 100% for the displayed roles. Pages refresh weekly (or daily for the top-50 most-requested skills).
- source
- Skillenai jobs index, deduplicated daily
- entity_id
- 92ec55956bc9effe
- data_as_of
- 2026-09-28
- 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.
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