FirstFocus was depressing to watch. Really talented developers were wasting their days fixing bugs in .NET Framework code from 2010. One guy told me 'I feel like my career is going backwards.' They were losing good people because the work sucked.
FirstFocus came to me with a classic Legacy Lock-In problem: 70% of their development team's time was spent maintaining outdated .NET Framework code instead of building features that would grow their business. Their talented developers were frustrated, clients were experiencing delays, and the company was losing competitive edge.
This wasn't just a technical migration - it was a complete transformation of their development culture. Over four years, we systematically migrated from .NET Framework to modern .NET Core while building a scalable team structure. I established CI/CD pipelines that reduced deployment times by 90% and created mentorship programs that doubled team productivity.
The real challenge was managing this transformation while continuing to deliver client projects. We built and integrated a 7-person offshore development team, ensuring knowledge transfer and maintaining quality standards throughout the scaling process. Every decision was made with long-term sustainability in mind.
The results speak for themselves: FirstFocus went from struggling with legacy maintenance to delivering €100K+ in client projects while doubling their team size. They transformed from a company held back by their technology to one empowered by modern development practices and scalable architecture.
Moved everything from old .NET Framework to .NET Core (huge performance boost)
Set up proper CI/CD so deployments weren't scary anymore
Changed how the team worked - added code reviews, mentoring, actual planning
Brought in an offshore team and actually made it work (that's harder than it sounds)
Complete platform migration with zero business disruption
90% reduction in deployment times through automation
Structured development processes doubling team productivity
Scalable architecture supporting multiple concurrent projects
70% faster project delivery cycles
Successfully delivered €500K+ in client projects
2x increase in team productivity
Established sustainable development practices
This one was about people more than technology. Yes, the .NET Core migration was important, but what really changed things was giving developers tools they didn't hate using. Same team, modern stack, and suddenly everyone's building features instead of fixing bugs. Morale went through the roof.
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