≈$2M
annual savings enabled
Volkswagen training delivery modernization
Principal-led, agent-assisted modernization
Modernize the systems your business cannot afford to stop.
Fox CTO combines accountable technical leadership with governed AI agents to modernize business-critical .NET and integration-heavy systems—without disrupting customers, operations, or compliance.
- Principal
- Matthew Fox
- Since
- 2008
- Based
- Tulsa, Oklahoma
The modernization case
Legacy is not defined by age. It is defined by constraint.
A system becomes legacy when it slows decisions, concentrates operational risk, or makes necessary change too expensive. Modernization should remove those constraints while protecting the capabilities, customers, and institutional knowledge already inside the business.
Modernization capacity, ready to operate
Add an AI modernization capability without building the platform team.
Fox CTO supplies the method, agent workflows, operating controls, and principal oversight. Your organization retains its repositories, resulting code, and authority over every consequential change.
01
Discover
Map code, dependencies, data, integrations, and undocumented business behavior.
02
Protect
Build characterization tests, baselines, and explicit modernization rules before changing the system.
03
Change
Produce bounded plans and reviewable pull requests in isolated workspaces.
04
Verify
Independently test behavior, policy, security, and regressions before human approval.
Evidence, not aspiration
Outcomes from systems that had to keep running
3×
database performance
MySQL-to-Aurora migration at SANS
≈400%
performance improvement
Legacy .NET modernization at DSN
1.2M
user scale supported
Multi-tenant learning platform at SANS
One practice, four ways to engage
From an uncertain legacy estate to controlled, measurable progress
01
Modernization diagnostic
Establish what is fragile, what is valuable, and where change will produce a measurable business return.
02
Modernization first slice
Make an evidence-backed modernization decision and prove the path through one reversible, production-shaped increment.
03
Dedicated modernization cell
Add a governed modernization workstream without building and operating an internal agent platform team.
04
Modernization leadership
Provide accountable, hands-on direction across architecture, delivery, stakeholders, and operating risk.
Operating principles
Modernization without theater
- 01Preserve the business logic that earned its place.
- 02Sequence around customers, cash flow, compliance, and team capacity.
- 03Make risk and value visible before committing major capital.
- 04Leave the system and the organization easier to change.
A useful first conversation