Bernard Zisermann is an experienced IT professional and consultant specializing in application modernization, legacy system migration, and enterprise IT transformation. His career combines technical and managerial expertise in demanding environments, from IT consulting to large-scale migration projects.
Early career
Engineer from french ESIEE school , Bernard began his career in international technical environments, notably at Steria (IT services and system integration) during 2 years and Texas Instruments during 10 years, where he gained extensive experience with complex architectures, projects , Marketing and Business Development.
Founder & CEO of TELEBIG (1983–2018)
In 1983, he founded TELEBIG, a French IT services company focused on:
- Custom software development
- IT systems and architecture consulting
- Legacy application modernization and migration (COBOL, Mainframe, Pacbase, etc.)
- Corrective and adaptive maintenance for major clients
Under his 35 years leadership, TELEBIG stood out as a highly technical firm, specializing in transitioning legacy systems to modern architectures and supporting large organizations in their IT modernization projects. Bernard served as CEO until the end of 2018.
Independent consulting career (since 2019)
After selling TELEBIG, Bernard has been working as an independent consultant, focusing on IT systems consulting, legacy modernization, and strategic enterprise IT transformation, with projects sometimes at the international level.
International consultant & expert
He also collaborates with companies specializing in legacy modernization ( Veryant, mLogica, Just Software, CodeAura), providing advisory, business development, and transformation strategy for application modernization solutions worldwide.
Quick summary
- 👨💻 Early career: Steria and Texas Instruments France (1971-1983)
- 🚀 TELEBIG (1983–2018): CEO, legacy systems modernization expert
- 📊 Since 2019: Independent consultant in IT transformation and legacy modernization