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-service repair for a car-fleet maintenance tool: fixed the wear calculation so nearly-worn cars are flagged, handled missing service readings without crashing, corrected the nightly report’s average, and added the missing regression test. Also produced a data-driven breakdown-risk analysis that follows the fleet history rather than the misleading mileage assumption, and documented the agent review process in clear 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
- Identified the exact floor-division line causing nearly-worn cars to report 0% wear and explained the failure mode clearly
- Caught and documented the agent’s Unicode runtime issue in analyze.py, showing they reviewed execution behavior rather than trusting code appearance
- Added the missing report test for a car with no last-service reading and confirmed the report no longer crashes
- Kept the 15000 km interval and 80% threshold unchanged while fixing the surrounding logic
- Leakage-Free Bug Diagnosis
- Verified AI Output Auditing
The deliverable
The work I submitted20 tasks
12 tasks · 4.2k characters · 8 written answers · 192 words
- Diagnose Line130 characters
- Diagnose Why305 characters
- Scope Prompt66 characters
- Audit Findings159 characters
- Audit Why378 characters
- Acceptance Checklist347 characters
- Template Repo Click82 characters
- Bob Ready61 characters
- Bob Trial Click458 characters
- Exec Pitch2.0k characters
- Bob Bonus201 characters
- Repo URL59 characters
- Diagnose Line10 words
- Diagnose Why56 words
- Scope Prompt1 word
- Audit Findings1 word
- Audit Why63 words
- Acceptance Checklist59 words
- Template Repo Click1 word
- 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.