Legacy System Modernization in NYC & Northern NJ
If your business runs on software that was written in the 1990s or 2000s and has outlived three IT consultants, we can move you forward. We modernize the systems that still work, on a schedule that keeps your business running, with a phased cutover instead of a one-night migration that everyone dreads.
What we actually build.
VB6, Classic ASP, Access, FoxPro, AS/400
The platforms that were modern when your senior employees joined the company. We translate the workflows out of them carefully — not just the code, but the small rules and exceptions that nobody wrote down.
Old PHP, Rails 2/3, .NET Framework
Mid-2000s web applications still serving customers. Modernized to current frameworks with deployment, testing, and security brought up to today's standards.
Spreadsheet-Driven Operations
The workbook with 47 tabs and a dozen macros that runs a critical part of your business. Replaced with a real application while preserving the calculations the team trusts.
On-Prem to Cloud Migrations
Internal applications running on a server in the closet, moved to U.S.-region cloud infrastructure with proper backups, monitoring, and access controls.
The process.
- 01
Inventory
We sit with the people who use the system, document what it actually does — including the parts the original spec didn't cover — and identify the genuine business logic versus accidental complexity.
- 02
Cutover Plan
A written plan that gets you from old to new in phases: which modules go first, what runs in parallel, where the data sync lives, what the rollback path is.
- 03
Phased Migration
We rebuild in the modern stack one module at a time. Old and new systems run side by side until each module is verified. Nobody loses a day's work to a migration weekend.
- 04
Decommission
When the new system is fully trusted, the old one is shut down and archived. The institutional knowledge is now in working software, not in one person's head.
NYC & Northern NJ in person.
Modernization is one of the engagements where being local matters most. The information we need is mostly in the heads of long-tenured employees, and most of it surfaces during in-person walkthroughs of how their day actually goes. For NYC clients we run those walkthroughs onsite same-week, often spending several days at the office at the start of an engagement. We're in Northern New Jersey roughly twice a week and schedule extended modernization discovery around those days for Bergen, Hudson, Essex, and adjacent counties. Remote-only modernization is possible but takes longer, because the in-person 'wait, why do you do that?' conversation is where the real risks get found.
The stack.
- TypeScript
- Postgres
- Python
- C# / .NET
- Docker
- Terraform
- AWS / Azure
Target stack depends on what fits your team. We move VB6 and Access to TypeScript + Postgres web apps where end-user access matters; .NET Framework to .NET 8; AS/400 systems to a documented service layer plus a modern UI. We don't push a specific stack — we push something your future maintainer can hire for.
Who we work with.
Established firms with aging custom software
Professional services, distributors, light manufacturers running 15+ year-old internal applications. The original developer has retired, moved on, or charges 4× their old rate.
Operators on unsupported platforms
Businesses where 'we know it works because it's worked for years' is meeting 'the operating system is end-of-life and we can't get a new server license.'
Owners planning a sale or transition
Modernizing the technology stack is often part of getting a business sale-ready. We can scope the work with that timeline in mind.
Common questions.
- We're scared of losing functionality during a migration. How do you avoid that?
- Phased cutover with parallel running. We never replace a module that hasn't been verified by the people who use it daily. The old system stays up until you decide otherwise.
- How do you handle the institutional knowledge that lives in people's heads?
- We write it down. Every workflow walkthrough produces a written document the team reviews. By the end of an engagement you have not only modernized software but a real operations manual — often the first one the business has had.
- Can you work with our existing IT team?
- Yes. Often we lead the engineering and integrate with your in-house team for operations, support, or domain expertise. We're explicit about scope so nobody is stepping on each other.
- What's a realistic timeline?
- A genuinely large modernization runs 6-18 months. Smaller ones (e.g., a single Access application replaced by a web app) can finish in 8-12 weeks. We'll give you a phased plan with clear milestones.
- Do you work onsite in NYC / NJ for these projects?
- Yes — and we strongly prefer to. The early walkthroughs are 3× more productive in person. We're NYC-headquartered and routinely in Northern New Jersey; we'll be at your office for the discovery period and for cutover. The build phase is typically remote.
The other eight.
Start a conversation.
Direct reply from the founder. NYC & Northern NJ in person; U.S. clients remotely.
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