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 a complete modernization and bug-fix pass for a legacy fleet-service repo: corrected the wear math, handled missing service readings safely, fixed the nightly report’s average and crash path, and caught a hidden mileage-conversion bug in the helper layer. Also added the missing regression test, produced a data-driven breakdown-risk analysis, and validated the result with a full acceptance checklist before handing it back.
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 and fixed the floor-division wear bug so a nearly-worn car is now flagged
- Swept the helper module and caught the quiet km_to_miles conversion error that no test originally covered
- Added the missing report test and verified the repo with all 11 acceptance checks passing
- Wrote NOTES.md in a way that documents what the agent got wrong and how the work was checked
- Leakage-Free Bug Diagnosis
- Directed AI Code Review
The deliverable
The work I submitted20 tasks
12 tasks · 2.1k characters · 8 written answers · 87 words
- Division Predict70 characters
- Diagnose Line130 characters
- Diagnose Why123 characters
- Scope Prompt66 characters
- Audit Findings158 characters
- Audit Why199 characters
- Acceptance Checklist209 characters
- Template Repo Click82 characters
- Verify Report71 characters
- Exec Pitch657 characters
- Bob Bonus262 characters
- Repo URL53 characters
- Division Predict1 word
- Diagnose Line10 words
- Diagnose Why19 words
- Scope Prompt1 word
- Audit Findings1 word
- Audit Why29 words
- Acceptance Checklist25 words
- Template Repo 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.