Self-directed project
AI-Assisted Code Modernization with IBM
Junior Software Engineer · Software Engineering · August 2026
Based on a public IBM case study · not affiliated with IBM
Built and verified a full legacy-code modernization for KM-Waechter: corrected the service-wear calculation, handled missing readings safely, fixed the nightly report’s averaging and crash path, and added the missing regression test. The repo also includes a data-driven breakdown-risk analysis and a written audit trail showing what the AI agent got wrong and how the work was checked before acceptance.
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 calculation so a nearly-worn car is no longer floored to 0 and missed by the service check.
- Handled the missing last-service reading in the report path so the nightly summary no longer crashes.
- Produced a data-backed breakdown analysis that explicitly distinguishes the real predictors (km_since_service, avg_daily_km, load_factor) from the misleading ones (odometer_km, age_years).
- Leakage-Free Bug Diagnosis
- Acceptance-Driven Verification
- Data-Driven Risk Analysis
The deliverable
The work I submitted20 tasks
12 tasks · 2.6k characters · JavaScript · 8 written answers · 80 words
- Division Predict73 characters
- Diagnose Line130 characters
- Diagnose WhyJavaScript · 187 characters
- Scope Prompt66 characters
- Audit Findings146 characters
- Audit Why73 characters
- Acceptance Checklist156 characters
- Bob Ready60 characters
- Template Repo Click82 characters
- Verify Report71 characters
- Exec Pitch1.4k characters
- Bob Bonus169 characters
- Division Predict1 word
- Diagnose Line10 words
- Diagnose Why32 words
- Scope Prompt1 word
- Audit Findings1 word
- Audit Why12 words
- Acceptance Checklist22 words
- Bob Ready1 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.