Hire Data Scientists Who Can Ship, Not Just Model
Great data scientists write clean code, know their stats cold, and ship models. Assess candidates on all three — with live notebook execution and realistic data.
Jupyter-style execution
Preinstalled
Integrity detection
Faster time to offer
Everything you need to hire data science engineers
Live notebook execution, stats-aware questions, and integrity detection built for DS hiring.
Live Python notebook
Jupyter-style execution with pandas, numpy, sklearn, matplotlib, and seaborn preinstalled.
Stats + ML MCQs
Curated questions on probability, hypothesis testing, regression, classification, and ML system design.
SQL execution
PostgreSQL + DuckDB live in the editor — candidates run analytical queries on seeded data.
AI code review
Claude-powered analysis of statistical soundness, code style, and ML system choices.
Pair-programming interviews
LiveKit video + collaborative notebook for live analysis sessions.
AI-proof integrity
Code coherence AI flags ChatGPT-generated analysis; keystroke biometrics catch takeovers.
DS templates
Stats-heavy, ML-heavy, and end-to-end DS templates calibrated by seniority.
Time analytics
Measure time-per-task to calibrate difficulty.
Built-in pipeline
Job posts, kanban pipelines, structured feedback, PDF reports.
Built for Data Science hiring, end to end
Skill signal, integrity, and pipeline — all in one platform.
Test real data science work
DS hiring fails when interviews focus only on LeetCode or only on textbook stats. Real DS work combines code, stats, and ML system design. ClarityHire runs live notebooks so candidates do real analysis.
- Jupyter-style Python notebook in-browser
- pandas, numpy, sklearn, matplotlib preinstalled
- Statistical + ML system-design questions
Catch ChatGPT-generated code before you hire
LLM-generated code arrives as large clean pastes with no iterative debugging. Authentic coding shows typing rhythm, edits, and refactors. Code coherence AI plus keystroke biometrics score the session, not just the output.
- Edit pattern analysis (type → test → refactor)
- Keystroke biometrics detect takeovers mid-session
- Per-signal authenticity score on every submission
From application to offer in one platform
Post the role, invite candidates, run assessments, schedule live interviews, collect structured feedback, and export a PDF report — all without leaving ClarityHire. No stitched-together ATS, video tool, and assessment platform.
- Job boards with branded careers page
- Kanban pipelines with stage automations
- PDF hiring reports for stakeholders
From posting to offer in four steps
Post the role
Use a ready-made template or build from scratch. Embed the posting on your branded careers page in minutes.
Invite candidates
Send assessments by email or CSV bulk import. Each candidate gets a unique, revocable token-protected link.
They build, you watch
Candidates code in a real Monaco editor with integrated execution. Integrity signals run silently in the background.
Interview + offer
Top candidates advance to a collaborative video interview. Structured feedback, PDF report, offer letter.
Frequently asked questions
What data science topics can I assess?+
Probability, hypothesis testing, A/B testing design, regression (linear, logistic), classification, clustering, feature engineering, model evaluation, SQL, ML system design, and Python data stack fluency.
Can candidates plot and visualize in the assessment?+
Yes. matplotlib and seaborn are preinstalled. Candidates' plots render inline in the notebook exactly like Jupyter.
How do you detect if a candidate used ChatGPT or Copilot?+
Code coherence AI analyzes the edit pattern of every session. LLM-generated code typically arrives as large clean pastes with no iterative debugging — those patterns get flagged with evidence. Keystroke biometrics catch takeovers mid-session, and paste events are logged with code-size correlation.
Can I run live pair-programming interviews?+
Yes. LiveKit-powered video plus a collaborative Monaco editor (Yjs CRDT) lets you and the candidate co-edit in real time. Recording, transcription, and structured scorecards are built in.
Do I still need a separate ATS?+
No. ClarityHire includes job boards, candidate pipelines, stage automations, bulk CSV import, and PDF reports. Most teams replace their ATS + assessment tool + interview platform with a single ClarityHire subscription.
Explore related roles, templates, and use cases
ClarityHire is one platform. Every role, template, and feature is built to work with the rest.
Data Scientist Assessment Template
Ready-to-run Data Science assessment template with curated MCQ, coding, and essay questions.
Hire ML Engineers
ML-focused hiring covering training, deployment, and ML systems.
Hire Data Engineers
SQL and pipeline hiring for data infrastructure roles.
Hire Python Developers
General Python hiring with data-stack support.
Hire Data Scientists with Confidence
Start screening data science candidates in minutes. No credit card required.