Vineet Nair

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Vineet Nair

Mechatronics · Technical University of Applied Sciences Würzburg-Schweinfurt

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Projects

Certified

Self-directed project

Machine Learning for Automotive

AI / ML · October 2026

78/ 100

A ProoV case study · educational project, not employment

Built an end-to-end used-car pricing workflow for VW and Audi listings in the UK market. Combined and explored the datasets, engineered predictive features such as car age and mileage per year, compared Linear Regression against Random Forest with R²/MAE/RMSE, and translated the results into a practical pricing recommendation for a Certified Pre-Owned team.

Graded against

  • Exploratory Data Analysis20%
  • Feature Engineering25%
  • Model Building & Evaluation35%
  • Business Communication20%

Passed · pass mark 60/100

What stood out6
  • Combined VW and Audi listings correctly with a brand column and verified the merged dataset size
  • Used the required evaluation metrics and clearly quantified the Random Forest vs. Linear Regression improvement
  • Identified the most important pricing drivers as mileage, car age, and engine size and translated that into a CPO recommendation
  • Leakage-Free Data Preparation
  • Comparative Model Evaluation
  • Business-Oriented Interpretation
The work I submitted10 tasks

5 tasks · 6 lines · 5 written answers · 167 words

  • VW Sprint1 Complete56 characters
  • VW Sprint2 Complete61 characters
  • VW Sprint3 Complete59 characters
  • VW Business Insights1.6k characters
  • Jupyterlite Code2 lines
  • VW Sprint1 Complete1 word
  • VW Sprint2 Complete1 word
  • VW Sprint3 Complete1 word
  • VW Business Insights163 words
  • Jupyterlite Code1 word

Summarised on purpose — the submitted code and writing stay private so this page cannot be reused as an answer key. The full submission sits behind the verified certificate.

Verified certificateTamper-proof · issued by ProoV
Certified

Self-directed project

AI-Assisted Code Modernization with IBM

Junior Software Engineer · Software Engineering · August 2026

84/ 100

Based on a public IBM case study · not affiliated with IBM

Built and verified a full legacy-code modernization for KM-Waechter: fixed the service-wear calculation, handled missing service readings safely, repaired the nightly report, corrected a quiet mileage-conversion bug in the helpers, added the missing regression test, and wrote a data-driven breakdown-risk analysis. Also audited the AI agent’s output against acceptance checks and documented the review in NOTES.md.

Graded against

  • Fix and extend the repo with the agent35%
  • Diagnose the bug20%
  • Direct and audit the AI agent25%
  • Explain it like an engineer20%

Passed · pass mark 60/100

What stood out6
  • Correctly identified the floor-division line as the root cause of the near-worn-car bug.
  • Caught the agent’s reintroduced rounding issue, the threshold change, and the missing proving test during audit.
  • Wrote a meaningful NOTES.md that explains what was checked and how the agent’s work was validated.
  • Produced an analysis that follows the dataset’s actual signals instead of the tempting mileage/age assumption.
  • Leakage-Free Feature Engineering
  • Honest Model Evaluation
The work I submitted20 tasks

12 tasks · 2.1k characters · 8 written answers · 149 words

  • Division Predict73 characters
  • Diagnose Line130 characters
  • Diagnose Why143 characters
  • Scope Prompt66 characters
  • Audit Findings158 characters
  • Audit Why395 characters
  • Acceptance Checklist233 characters
  • Bob Trial Click74 characters
  • Bob Ready60 characters
  • Template Repo Click82 characters
  • Verify Report71 characters
  • Exec Pitch591 characters
  • Division Predict1 word
  • Diagnose Line10 words
  • Diagnose Why25 words
  • Scope Prompt1 word
  • Audit Findings1 word
  • Audit Why76 words
  • Acceptance Checklist34 words
  • Bob Trial Click1 word

Summarised on purpose — the submitted code and writing stay private so this page cannot be reused as an answer key. The full submission sits behind the verified certificate.

Verified certificateTamper-proof · issued by ProoV
2Projects completed
2Verified certificates
81Average score
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