Self-directed project
AI-Assisted Code Modernization with IBM
Junior Software Engineer · Software Engineering · October 2026
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’s average and crash path, corrected a hidden mileage-conversion helper bug, and added the missing regression test. Also produced a data-driven breakdown-risk analysis that prioritizes km-since-service, load, and daily usage while explicitly rejecting the misleading mileage/age assumption.
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
- Caught and fixed the quiet `fleet_utils.km_to_miles` conversion bug that no test directly covered
- Kept the 15,000 km interval and 80% threshold unchanged in both code and `settings.cfg`
- Wrote a data-driven breakdown analysis that explicitly rejects the misleading odometer/age assumption
- Documented the agent review process clearly in `NOTES.md` and tied it to concrete checks
- Leakage-Free Feature Engineering
- Honest Model Evaluation
The deliverable
The work I submitted20 tasks
12 tasks · 2.4k characters · 8 written answers · 102 words
- Division Predict70 characters
- Diagnose Line130 characters
- Diagnose Why120 characters
- Scope Prompt66 characters
- Audit Findings158 characters
- Audit Why191 characters
- Acceptance Checklist211 characters
- Bob Trial Click74 characters
- Template Repo Click82 characters
- Verify Report71 characters
- Exec Pitch712 characters
- Bob Bonus493 characters
- Division Predict1 word
- Diagnose Line10 words
- Diagnose Why20 words
- Scope Prompt1 word
- Audit Findings1 word
- Audit Why32 words
- Acceptance Checklist36 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.