Software Development
Custom business applications, Odoo deployment, and the integrations that turn a stack of tools into one workflow.
Trans-System International Company has delivered custom software for B2B clients since 1996. We build applications that integrate cleanly with the ERP, accounting, and operational systems your business already runs.
Odoo Development & Implementation
Full-stack Odoo work — deployments, custom modules, version migrations, third-party integrations, and managed hosting. Odoo is our deepest single-platform specialty; we run a full Enterprise install in production for our own business.
Custom Business Applications
When the workflow doesn't fit an off-the-shelf product, we build the application around the workflow. Internal tools, customer-facing portals, field-data capture, integration middleware, dashboards.
API Development & Integration
REST, GraphQL, SOAP, XML-RPC, gRPC — and the glue code that makes two systems behave as one. Documentation, security, rate-limiting, audit logging — what real production-grade APIs require.
EDI Integration
Industry-standard message exchange — railroad (EDI 161, 418J), retail (X12 810, 850, 856), healthcare (270/271), and the custom carrier-specific variants. Trading-partner onboarding and ack-handling.
Data Migration & ETL
Move data between systems without losing customers, breaking AR balances, or losing institutional memory. ERP-to-ERP, CRM consolidation, database platform changes, M&A integration.
Process Automation
Replace recurring manual work with reliable scripts. Daily ETL, invoice OCR + accounting import, inventory triggers, customer-data sync, compliance-document generation, bulk notifications.
QA & Testing
Test strategy, automation (pytest, Playwright, Cypress), regression suites, performance and load testing, security scanning, and the discipline that makes "it works" mean something repeatable.
DevOps & Infrastructure
Docker, Linux operations, CI/CD pipelines, monitoring with Prometheus + Grafana, ZFS/restic backups, reverse-proxy + automatic TLS. The unglamorous discipline that turns "it works on my laptop" into "it ships every Tuesday."
Languages & Frameworks
Python (Django, Flask, FastAPI), JavaScript / TypeScript (React, Vue, Node.js), C# / .NET (ASP.NET Core), Java (Spring Boot), SQL (PostgreSQL, MS SQL, MySQL, Oracle), PHP, Go, Bash. Docker + Linux on the operations side.
See our platform in action
Want a concrete look at how we engineer this stuff? Browse Our Work — the custom modules, integrations, monitoring, and quality discipline behind TSI's own Odoo build.
Start a Project
Have an application idea or a system that needs to connect to something else? Contact us or call +1 254-294-1004.