About Twinn Engineering
We're a small, focused team that builds data infrastructure for the construction industry. What we know about Sage 100 Contractor comes from years of working alongside the accountants and project managers who use it every day.
How OPDC Started
OPDC grew out of necessity. Over the past decade, our team deployed more than 20 custom Sage integrations on-premise for contractors across the Southeast. The early versions were simple desktop applications, each one built to solve a specific problem for a specific client.
As those tools proved reliable, more users came on board. What started as one-off utilities became a shared platform. We built our first server application to propagate configurations across machines, and before long, our internal tooling had become something clients were actively asking for.
OPDC is the productized version of that internal platform. A decade of on-premise deployments went into it, and its job is to be the one secure layer between Sage 100 Contractor and everything else.
Our Team
CEO & Founder
30 years in the Sage ecosystem
Our CEO has worked with Sage products since their earliest iterations in the 1990s. A career spanning CFO roles and business operations leadership means she has closed the books herself, so she knows how contractors run job costing, payroll, and compliance day to day. She sets the direction for Twinn Engineering.
Lead Developer
10+ years of enterprise development
The architect behind OPDC, with over a decade of enterprise software experience across fintech platforms and government mainframe systems. Most of that work was making complicated systems present a simple, well-documented interface to everyone else.
Database Administrator
10+ years in data engineering
Our DBA brings a decade of experience in database architecture and a background in data science. They own our query layer, analytics pipelines, and testing infrastructure, which is why a query through OPDC returns what Sage would return, quickly.
Support Engineer
Background in major cloud platforms
Our support engineer spent their early career at two of the largest cloud infrastructure companies in the world. They brought those support practices to a team small enough that the person answering you already knows your setup.
What We Value
Security by Default
Your data never leaves your network unless you say so. Read-only access, encrypted connections, no cloud databases.
Ship Things That Work
We'd rather ship a reliable tool that solves one problem well than a feature-packed product that breaks under pressure.
Know Our Customer
We build for people whose month-end does not move. That means answering support quickly and telling you what is actually on the roadmap, including what is not.
Based in Atlanta
Twinn Engineering is headquartered in Atlanta, Georgia. We work closely with contractors and Sage consultants across the Southeast and beyond.