Post Launch Maintenance and Legacy System Support
As IT & engineering experts specializing in strategic data management, application development and integration, data analytics solutions , and more, we don’t just design, build and walk away. Theoris partners with you for full-lifecycle support as part of our enterprise support services.
Our team can support and maintain post-new system launch, help support a legacy system, and/or modernize a legacy system to keep operations running smoothly, as well as provide the on-site technical talent.
Partnering with you for customized solutions
We pride ourselves in partnering with you through all phases of a project. We are always by your side, from solution identification to execution and post-launch support. We are not a vendor, we are your partner. We can provide management and leadership oversight for the project, and staff a team of hands-on experts to get the job done.
Below is a sample list of our maintenance and support services. If you do not see what you are looking for, please call us and we will work with you to build the team or service to fit your specific needs.
- Staff development teams with a mix of senior talent and junior level talent
- Staff a team of quality assurance experts
- Staff a technical writing team
- Production support
- Desktop support and helpdesk support
- Data and infrastructure security audits
Ready to talk?
Let us know how we can help you out, and one of our experts will be in touch right away.
Client Success Story

FINANCIAL
Portfolio Management Application
Theoris assisted both with the support of the legacy system and supported the client with migration from Mainframe to .NET Core and ongoing application maintenance and support for 3 large Portfolio Management Applications in the financial industry.
















