We build custom software, smart contracts, and private blockchain solutions for startups that need to ship fast and scale reliably.
Start a conversationOpentech OÜ is an Estonian software engineering company focused on blockchain technology and decentralized systems. We work with early-stage Web3 projects and startups that need technical expertise without the overhead.
Our team combines deep protocol knowledge with practical engineering to deliver production-ready code. No hype. Just solid infrastructure.
End-to-end development for blockchain-native applications and infrastructure.
Full-stack applications, APIs, and backend systems tailored to your protocol or platform. Built with modern stacks and deployed with best practices.
Secure, gas-optimized smart contracts for EVM-compatible chains. From token standards to complex DeFi protocols—audited and battle-tested.
Enterprise-grade private networks for organizations requiring controlled access, data privacy, and regulatory compliance. Hyperledger, Polygon Edge, and more.
A straightforward process designed for efficiency and clarity.
We analyze your requirements, technical constraints, and project goals.
System design, technology selection, and detailed specification.
Iterative development with regular code reviews and progress updates.
Testing, audit preparation, mainnet deployment, and documentation.
Technical depth meets operational simplicity.
We understand blockchain from the consensus layer up. This means better architectural decisions and fewer costly mistakes.
Every line of code is written with security in mind. We follow established standards and prepare your contracts for external audits.
Flexible scope, transparent pricing, and async-first communication. We adapt to how you work, not the other way around.
Registered in Estonia with full legal compliance. Clear contracts, proper invoicing, and a stable business relationship.
Have a project in mind? We're selective about what we take on, but always happy to discuss ideas.
info@opentech.eeOpentech OÜ · Tallinn, Estonia
