Self-directed project
AI-Assisted Code Modernization with IBM
Junior Software Engineer · Software Engineering · September 2026
Based on a public IBM case study · not affiliated with IBM
Built a complete legacy-code modernization for KM-Waechter: corrected the service-wear logic, handled missing readings safely, fixed the nightly report’s average and crash path, and repaired a hidden mileage-conversion bug in the helpers. Also added the missing regression test, produced a data-driven breakdown-risk analysis from fleet_history.csv, and documented the verification process 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
- Fixed the core wear bug with true division so a nearly-worn car is correctly flagged.
- Caught and corrected the quiet fleet_utils.km_to_miles conversion bug that no test directly covered.
- Added the missing no-reading report test and verified the repo with a full 11/11 acceptance check.
- Wrote a data-backed breakdown analysis that explicitly rejects the misleading mileage/age assumption.
- Leakage-Free Bug Diagnosis
- Directed AI Code Review
The deliverable
The work I submitted16 tasks
8 tasks · 1.6k characters · 8 written answers · 184 words
- Division Predict72 characters
- Bob Trial Click74 characters
- Bob Ready60 characters
- Template Repo Click82 characters
- Verify Report71 characters
- Exec Pitch818 characters
- Bob Bonus352 characters
- Repo URL55 characters
- Division Predict1 word
- Bob Trial Click1 word
- Bob Ready1 word
- Template Repo Click1 word
- Verify Report1 word
- Exec Pitch121 words
- Bob Bonus57 words
- Repo URL1 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.