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 a fleet maintenance service: fixed the wear calculation, handled missing service readings safely, corrected the nightly report’s average and crash path, and repaired a hidden mileage-conversion bug in the helpers. Also added a data-driven breakdown-risk analysis that ranks cars by service risk using the factors the dataset actually supports, and documented the review process in 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
- Caught the quiet helper-module mileage conversion bug that no test directly covered
- Explained the integer-division failure mechanism clearly and tied it to a real maintenance risk
- Wrote a sensible breakdown-risk analysis that follows the dataset instead of the obvious mileage assumption
- Documented the agent’s mistakes and the verification steps in their own words in NOTES.md
- Leakage-Free Bug Diagnosis
- Directed AI Agent Auditing
The deliverable
The work I submitted20 tasks
12 tasks · 2.4k characters · 8 written answers · 169 words
- Division Predict70 characters
- Diagnose Line130 characters
- Diagnose Why365 characters
- Scope Prompt66 characters
- Audit Findings158 characters
- Audit Why333 characters
- Acceptance Checklist219 characters
- Bob Trial Click74 characters
- Bob Ready60 characters
- Template Repo Click82 characters
- Exec Pitch638 characters
- Bob Bonus161 characters
- Division Predict1 word
- Diagnose Line10 words
- Diagnose Why60 words
- Scope Prompt1 word
- Audit Findings1 word
- Audit Why59 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.