Custom digital products for humans
Web, mobile, AI and Web3 when they actually help. From messy idea to working MVP to first real users.

I build and fix apps, systems and automations that make operations, marketing and sales less painful.

Sovernance is a one-person digital product studio run by Konstantin Zherebtsov.
10+ years in fintech, SaaS and Web3. Products shipped across EU, MENA and global markets.
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Helped launch and grow liquid staking and DeFi products with multi-million TVL.
Led product and tech for SaaS and fintech teams up to 40+ people.
Worked with both early-stage founders and established enterprises.
Who I usually work with
  • Founders and business owners
    Need a hands-on partner to shape, ship or fix a digital product without hiring a full team.
  • Product and ops leads
    Want to cut friction in daily work, modernize internal tools and ship more with the same people.
  • VCs and funds
    Need sharp product and tech due diligence, or a builder to help an early-stage portfolio company.
How I can help
You can treat me as an external product builder and systems engineer. Pick one focus, or combine a few in a short sprint.
How it works
Clear scope, short sprints, real outcomes. No big-bang projects.
  • Quick call
    For ~30 minutes we look at where it hurts and what success would look like in the next 4–8 weeks.
  • Snapshot audit
    I review your current tools, flows and numbers. You get a short summary with 2–3 concrete options.
  • Focused sprint
    We run a 1–3 week sprint to ship something real: a working MVP, a fixed flow, a live automation, a clear report.
  • Keep or pause
    If it works, we plan the next sprint. If not, you still keep all assets and findings.
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    Zero to one in days, not months
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