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about us
Legacy Application Development & Maintenance

S2Tech has more than a dozen years of experience in providing software engineering services for legacy mainframe software platforms. Our applications business analysts and technical programming staff:

  • Estimate software development costs and schedules
  • Analyze and document complex system requirements
  • Interpret software requirements, design specifications to code, manage software development and support, integrate and test software components
  • Provide system applications maintenance and troubleshooting
The range of legacy mainframe IT support services offered by S2Tech includes:

  • Expertise in diverse technologies - S2Tech’s mix of skills enables a quick ramp-up of resources for both large and small application projects.
  • Application development -Our software development process, supported by our quality management methodology, shortens application development timeframes providing significant business benefits to our clients. We provide both end-to-end solutions (analysis to maintenance) and specific development services.
  • Applications maintenance – We excel in quickly understanding aging systems, processes and standards. S2Tech’s application maintenance methodology includes adaptive maintenance, preventive maintenance and corrective maintenance. Our comprehensive methodology for application maintenance captures the functionality and processes for the entire maintenance life cycle, which includes:
    • Providing the necessary tools to identify the application business rules
    • Providing value-added services to enhance the capability of the application system
    • Building the tools and techniques to enhance staff productivity
    • Staffing and training the maintenance team on the application system needs, tools, and the maintenance process itself
    • Defining a client-approved quality measurement program


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S2Tech, 720 Spirit 40 Park Drive, Chesterfield, MO 63005
Phone: 636-530-9286
Fax: 314-754-9839