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 and verified an end-to-end modernization of a legacy fleet-service repo: fixed the service-wear logic, handled missing readings safely, repaired the nightly report, corrected a hidden mileage-conversion bug in the helpers, and added the missing regression test. Also delivered a data-driven breakdown-risk analysis that ranks cars by service-related risk rather than relying on misleading mileage or age assumptions.
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 the hidden helper-module mileage conversion bug that no test directly covered.
- Added the missing report test for a car with no last-service reading.
- Used the verify script as an acceptance gate and documented the checks in NOTES.md.
- Built a breakdown-risk analysis that explicitly rejects the misleading odometer/age assumption.
- Leakage-Free Bug Diagnosis
- Directed AI Code Review
The deliverable
The work I submitted20 tasks
12 tasks · 2.1k characters · JavaScript · 8 written answers · 57 words
- Division Predict85 characters
- Diagnose Line130 characters
- Diagnose Why161 characters
- Scope Prompt66 characters
- Audit Findings158 characters
- Acceptance Checklist42 characters
- Audit WhyJavaScript · 98 characters
- Template Repo Click82 characters
- Bob Ready61 characters
- Bob Trial Click202 characters
- Verify Report70 characters
- Exec Pitch915 characters
- Division Predict1 word
- Diagnose Line10 words
- Diagnose Why24 words
- Scope Prompt1 word
- Audit Findings1 word
- Acceptance Checklist7 words
- Audit Why12 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.