Custom software · since 2018

Service · Smart contracts & blockchain

Smart contracts and blockchain development

Smart contracts for EVM chains, Solana programs and private blockchain networks on Cosmos SDK — from design and testing to deployment.

What we build

  • EVM smart contracts — tokens, NFTs, staking, vesting, escrow and custom protocol logic, gas-optimised and tested.
  • Solana programs — on-chain programs and the client code that talks to them.
  • Private and permissioned networks — application-specific chains on Cosmos SDK for organisations that need control over who participates and what data is shared.
  • The parts around the chain — backends, indexers, APIs and web frontends that make a protocol usable.

How we work

1. Design

We start with what must be on-chain and what shouldn’t be. Many problems are cheaper and safer to solve off-chain, and the design says so.

2. Build and test

Contracts are written with tests for every path that moves value, including the unhappy ones: wrong callers, repeated calls, extreme amounts.

3. Review

Before anything holds real funds, we go through the security checklist for access control, reentrancy, arithmetic and upgradeability. For high-value contracts we recommend an additional independent audit.

4. Deploy and operate

We deploy to test networks first, then to mainnet, and set up monitoring for the contracts and the services around them.

Good fit if you…

  • are an early-stage Web3 project that needs working contracts and a usable product around them;
  • need a permissioned network where participants are known and data access is controlled;
  • have existing contracts that need review, extension or a migration plan.

Questions

Which chains do you work with?

EVM-compatible chains, Solana, and custom networks built on Cosmos SDK.

Can you audit contracts someone else wrote?

Yes, as part of our code and security audit. For contracts holding significant funds, we recommend a second independent audit as well.

Do you build the frontend and backend too?

Yes. A contract is only useful with an interface and services around it, and we can deliver the whole product.

Other services: Custom software development · MVP & prototype development · Software testing & QA · Monitoring & error analysis · Software support & maintenance · Code & security audit · Lower hosting costs · Integrations, bots & AI

Get in touch

Tell us what you have and what you need. Small scopes welcome, async communication, a reply within one business day.

Start a conversation