Unreadable core logic
Spaghetti modules and missing tests block safe refactors. We isolate bounded contexts and add characterization tests around the paths that still earn revenue.
Programming consulting · Singapore
Vector Matrix Consulting modernizes legacy applications without guesswork
We take on project-based engagements to untangle monoliths, brittle integrations, and aging codebases. Scope, fees, and delivery milestones are written down and agreed before engineering starts.
Call 6000 1907 · UEN 40889577K
Where legacy risk actually hides
Myth: a full rewrite is always faster. Reality: most Singapore teams stall when data models, batch jobs, and tacit operator knowledge were never mapped. We document what the system really does before we change it.
Integration drift
File drops, SOAP endpoints, and ad-hoc SQL jobs quietly diverge from production. We inventory interfaces and define contracts before swapping transports.
Documentation debt
Runbooks live in inboxes, not repos. We capture operational behavior alongside code changes so your team can run releases without us in the room.
Engagement rhythm for modernization projects
Each phase ends with a tangible artifact you can keep—architecture notes, test suites, or a migrated service—so you are never paying for vague “discovery” alone.
- Step 1
Landscape audit
We trace runtime dependencies, deployment paths, and owner teams. Outputs include a risk-ranked component map tied to business capabilities, not vendor buzzwords.
- Step 2
Target design
Together we choose strangler patterns, API facades, or selective rewrites. Fees and calendar milestones are fixed in a statement of work before build work opens.
- Step 3
Incremental delivery
We ship vertical slices with rollback plans. Legacy traffic shifts only when observability proves parity on the workloads you care about.
- Step 4
Handover
We pair with your engineers, transfer runbooks, and leave CI pipelines that fail when undocumented shortcuts creep back in.
Replacing COBOL on a slide deck is easy. Keeping payroll, customs filings, and nightly settlement windows intact while you migrate—that is the work we contract for.
Questions teams ask before signing a modernization SOW
Do you insist on a big-bang cutover?
No. We default to strangler-fig releases unless regulation forces a hard switch—and we document that exception in writing.
How are fees structured?
Project fees are quoted after the audit phase. You receive milestone-based invoices aligned to delivered artifacts, not hourly surprises.
Can you work with our existing vendor?
Yes, when roles are clear. We coordinate on interface ownership and keep integration tests in a neutral repository both sides can run.
Who is this not for?
Greenfield product builds with no legacy constraint, or teams seeking a fixed SaaS subscription—we scope custom engineering instead.
Vector Matrix Consulting is registered in Singapore (UEN 40889577K). Proprietor Lim Wei Jie.