Senior C++ / Windows Contractor – Legacy & Critical Systems

Overview

Specialist in stabilising, troubleshooting, and sustaining long-lived Windows applications built in C++ and MFC.

Engaged when business-critical systems become fragile, unpredictable, or dependent on knowledge that no longer exists.

When Clients Engage Me

• Legacy Windows applications become unstable or unpredictable
• C++ / MFC expertise has left the organisation
• Production faults cannot be reproduced in development
• Platform upgrades introduce failures or instability
• Installers, dependencies, or environments break deployment
• Systems must continue operating but cannot be rewritten
• Documentation is incomplete, outdated, or missing

What I Deliver

• Root cause analysis across application, OS, and environment
• Isolation of cross-layer defects (code, drivers, dependencies)
• Resolution of memory, threading, and stability issues
• Production fault investigation and correction
• Knowledge reconstruction and documentation
• System hardening and risk reduction

Typical Contract Scenarios

• Business-critical system instability
• Knowledge loss after developer departure
• Production-only failures
• OS or platform upgrade breakage
• Installer and environment failures
• Hardware or integration issues
• Systems that must continue without rewrite

Representative Failure Modes

• Data corruption due to ordering and framing faults
• Timing and race conditions in integrated systems
• Hardware dependency constraints affecting delivery
• Non-deterministic production behaviour

Approach

• Work from runtime behaviour, not assumptions
• Investigate across full system stack
• Prioritise stability and continuity over redesign
• Deliver safe, controlled remediation

Boundaries

• No greenfield development
• No full system rewrites
• No product feature roadmap work

CV

PDF | Updated 2026 | Includes full project history

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