A specialist studio, not an agency.
StackRefit is founder-led work for businesses that depend on legacy PHP and Linux systems they can't afford to lose — or rewrite.
Dan Voinea
Founder · AI & legacy modernization
Dan spent years working across PHP/Linux operations, academia, marketing/media, real estate, hospitality, and education. The common thread: systems that quietly run real businesses, often built years ago, often by someone who's no longer around.
StackRefit exists because the market doesn't only need someone who can write code. It needs someone who can map an old system quickly, communicate risk clearly, talk to non-technical owners honestly, and avoid recommending rewrites the business can't survive.
Find more on danvoinea.ro — academic background, AI work, and longer-form writing.
How we work, in six lines.
These aren't slogans. They show up in the proposal, the access checklist, and the invoice.
Audit before action
We don't touch production until we understand it. The audit protects the client, the agency, and us.
Preserve what works
Old code is often correct, just undocumented. We refit around real business logic instead of replacing it.
Senior-only delivery
No outsourcing chains, no junior handoffs. The person you talk to is the person doing the work.
AI-assisted, not AI-hyped
We use AI to accelerate documentation and analysis. We don't sell magic.
Fixed scope, fixed price
Hourly billing on legacy work creates bad incentives. Every engagement is scoped first.
Honest opinions
If your system doesn't need a refit, we'll say so. If it needs more than we offer, we'll say that too.
Discipline that's part of the value.
Working on revenue-critical infrastructure means tight rules. We don't hide them — they're part of why agencies hire us.
- 01NDA before sensitive access
- 02DPA where personal data is involved
- 03Written scope before touching production
- 04Read-only access for audits where possible
- 05Backup confirmation before risky work
- 06Staging-first approach where feasible
- 07Rollback plan for every upgrade
- 08Password manager + 2FA · least-privilege access
- 09No AI processing of client code or data without written approval