Jira had the tasks. Spreadsheets had the people. Nothing talked to each other. A plugin or a better spreadsheet wasn't going to fix it — so we built our own.
Founder & CEO · Athens, Greece
After years of managing engineering teams with a patchwork of Jira boards, spreadsheets, and status meetings, I built Mermix to solve the resource planning gap I kept hitting. We've been using it internally for over a year. Now we're opening it up.
Mermix is bootstrapped and built to stay independent — no VC, no feature bloat, just a focused tool that does one thing well. It's a product of Belesio SCS (Belesiotis Software & Consulting Services), our software & consulting company based in Chania, Crete.
Tasks live in Jira. The plan lives in Mermix. Changes sync both ways. No one maintains a spreadsheet — ever again.
Resource planning starts with capacity — leave, holidays, actual availability. Without that context, any schedule is fiction.
"Who's free next week?" shouldn't take ten minutes. AI Copilot answers capacity questions, generates charts, and exports reports from a single chat message.
Every organisation gets an isolated database. No data is shared across customers. Credentials are encrypted at rest. Read our security practices.
Ants are nature's master resource planners. They coordinate complex colonies with perfect clarity — every worker knows their role, no capacity goes to waste, and the whole colony moves as one.
We liked that metaphor for what we were building.