About Calisayas
Software and systems work that falls outside routine support.
Calisayas handles software and systems work that needs investigation, repair, or careful development: inherited applications, Microsoft 365 and mixed-platform environments, servers and virtualization, integrations, automation, and useful AI. Work can be direct, alongside an internal team, or discreetly under an IT provider's brand. Most engagements are remote, with local collaboration by appointment.
About Jeremiah
Deep engineering experience without the handoff chain.
Calisayas was founded by Jeremiah Byerley, former CTO of Lynda.com, where he helped build the technology behind the original online learning platform, and later worked as a systems architect for EMI/Virgin, AnySoft, and startups. The work combines deep software and infrastructure experience with direct, practical technical judgment.
Over more than 20 years, Jeremiah has worked across custom applications, streaming media, Microsoft and Linux systems, cloud migrations, databases, infrastructure, backup and recovery, automation, and the business logic hidden inside software that has been running for years.
The approach is straightforward: listen first, understand what the business actually needs, repair what is worth keeping, build only what is missing, and leave the system safer and easier to understand than it was before.