Inventory & behavioral baselines
We trace entry points, batch jobs, and integration adapters. For older stacks we capture golden-path scenarios before touching structure — especially where documentation stopped a decade ago.
Logic Harbor Consulting
Programming consulting for teams carrying legacy applications — refactoring brittle modules, untangling dependencies, and modernizing delivery without betting the business on a big-bang rewrite.
When the runtime still works but change is risky
Monoliths that boot every morning yet resist every feature request. COBOL services beside .NET patches. Oracle forms with business rules copied into three UIs. We help engineering leads map what must stay stable while incremental refactors open safer paths.
Engagements are scoped after inquiry: discovery workshops, dependency graphs, strangler-fig plans, test harnesses around legacy seams, and pair sessions with your maintainers. No fixed packages on this site — each modernization path depends on your stack and risk appetite.
Based in Chatuchak, Bangkok; we work with product and platform teams across Thailand and remote stakeholders who need honest assessments, not slide-deck promises.
We stabilize the energy in legacy systems by making change observable: characterize behavior, fence risk, then refactor with tests and telemetry you already trust.
Process we bring to legacy modernization
2Refactor seams with your team
Pair programming on the riskiest modules: extract services, introduce anti-corruption layers, and replace implicit coupling with explicit contracts. We favor small releases over frozen rewrites.
Modernize delivery & operations
Containerize where it helps, automate builds that still run on a single VM, and add observability around the paths you fear. Tooling choices follow your compliance and staffing reality.
Handoff & capability transfer
We document decisions, leave behind runnable checklists, and coach internal owners so modernization continues after the engagement — scoped hours, not perpetual dependency.
Who this is for — and who should wait
Good fit
You maintain a revenue-critical legacy app (ERP extensions, internal ops tools, telco/billing modules, manufacturing MES bridges) and need senior help planning refactors your team can sustain.
Not a fit
Greenfield product builds with no legacy constraint, staff augmentation without architectural ownership, or requests for guaranteed timelines without access to code and environments.
Commercial model
Paid consulting scoped per engagement after inquiry. We discuss rates, milestones, and invoicing once we understand scope — nothing is purchased directly through this website.
Start with a scoped conversation
Share stack, deployment shape, and the top three risks. We reply by email with whether we can help and what a sensible first phase looks like.