Smart Contract Development
Tokens, vesting, staking and DeFi logic with an audit before deployment. Smart contracts where code truly is law — and has no right to a bug.
Goals we set for the website
- 100%
- critical path test coverage
- 0
- critical findings at the external audit
- 8-16 weeks
- from tokenomics to mainnet
Sound familiar?
A smart contract has no rollback button: a bug after deployment means funds lost forever
Freelancers assemble contracts from borrowed pieces without tests: vulnerabilities surface in production
The tokenomics on paper doesn't match the code: vesting and emission work unlike the whitepaper
Investors and exchanges demand an audit, and the contract was written however-it-went — rewriting costs more
Smart Contract Development
What's included
Tokens and sales
ERC-20/BEP-20, token sales with rounds, whitelists, team and investor vesting by schedule
Staking and farming
Reward pools, lockups, APR logic: the economics sewn into the contract and computing right
NFT mechanics
Collections, mint phases, royalties, holder rewards: from a simple drop to game logic
Test engineering
Critical path coverage, attacks on ourselves, a mainnet fork: bugs get caught before the money
The audit circuit
An internal audit always, an external one for exchanges and investors: findings fixed before deployment
Life after deployment
Event monitoring, multisig on critical operations, a considered upgrade strategy
How the project runs
How the project runs
- 1-2 weeks
Systems analysis
Studying configurations, both APIs, data structures and exchange scenarios
- 1-2 weeks
Exchange design
Data mapping, sync directions and schedule, conflict handling
- 2-6 weeks
Build & testing
Connectors, queues with retries, runs on both systems' staging circuits
- ongoing
Launch & monitoring
Production launch, error alerts, support through system updates
A smart contract forgives nothing: a bug after deployment is money lost forever
In regular development a bug gets a hotfix. In a smart contract the deployed code is immutable, and live money sits inside: no bugfix, no rollback, no insurance. The industry is littered with stories of pools lost to one line. So our process is inverted: design before code, tests as an attack on ourselves, an audit before mainnet. In the Web3 founder’s review, the internal audit caught a reentrancy two weeks before deployment — in production it would’ve cost the whole reward pool.
Design: the tokenomics from paper into architecture
The whitepaper promises vesting, emission and mechanics — the code must match to the digit. Investors catch divergences in the explorer, and the trust doesn’t return. Design translates the economics into architecture: the contracts, roles, vesting schedules, owner rights, upgrade boundaries. In the platform CEO’s review, the tokenomics matched the code to-the-line for the first time — after a vendor who built it roughly-like-that. The upgradeability, multisig and timelock decisions get made here, before the first line of Solidity.
Tests as an attack: we break our code before others do
Smart contract test engineering isn’t checking-that-it-works but proving-it-doesn’t-break. Unit tests cover the critical paths fully. Scenario tests play out the contract’s life: the sale, the vesting, the claims. Attack tests: reentrancy, overflow, oracle manipulation, front-running. Fork tests run the code on a mainnet copy with real protocols. A bug caught by a test costs hours. One caught by an exploit costs everything.
The audit and deployment: mainnet without a right to surprise
The internal audit is mandatory for every contract. The external one we organize to the requirements of exchanges and investors: preparing the code and documentation, walking the process, fixing the findings. Deployment climbs a ladder: a testnet with a full run → the audit → mainnet with code verification in the explorer. In the NFT founder’s review, the mint survived ten times the load without incidents: the phases and limits worked as designed. That’s not luck — it’s the process.
Life after deployment and the place in the stack
A mainnet contract keeps living: event monitoring catches anomalies, critical operations sit behind multisig and timelocks, the upgrade strategy executes without panic. Our blockchain practice is wider than contracts: crypto payments, wallets, exchangers — the cases are in the trio below. A Web3 product assembles with a team for whom code-is-law isn’t a metaphor but a daily responsibility.
Related case study
Client reviews
Client reviews
The internal audit found a reentrancy vulnerability in the staking two weeks before deployment. In production it would've cost us the whole reward pool. A team that breaks its own code before mainnet is what you pay for without regret.
The whitepaper vesting finally matched the code. The previous vendor built it roughly-like-that, and investors caught the divergences in the explorer. Here the tokenomics was designed before a line of code, and the external audit passed without critical findings.
The mint passed without a single incident at ten times the expected load. The phases, the whitelist and the limits worked as designed. And the multisig on treasury operations removed the eternal one-key-one-catastrophe fear.
Related solutions
Related solutions
Crypto Payment Gateway for Websites
An invoice with a QR and a rate timer, auto-conversion to stablecoins and a non-custodial scheme. Crypto payments with the edge cases engineered before launch.
Crypto Exchanger Development
A rate engine with spreads, auto-payouts and an AML circuit. An exchanger as a risk management system, not a site with an exchange form.
Crypto Wallet Development
A non-custodial core, multichain from birth and seed phrase onboarding against fund loss. A wallet audited before release.
FAQ
FAQ about crypto payments
01How much does smart contract development cost?
From $13,000 for 8-16 weeks: the design, development, tests, the internal audit, deployment. A token with vesting sits near the lower bound, DeFi logic with staking near the upper. The quote follows a tokenomics review under NDA.
02Which chains and languages do you work with?
The core is the EVM family: Ethereum, BSC, Polygon and compatibles, in Solidity. We also work with TON and TRON for audience needs. The chain choice is part of the design: fees, speed and the ecosystem shape the architecture.
03Why an audit if you test yourselves?
Tests and the internal audit catch most problems, but a smart contract forgives no most. An external audit is independent eyes plus a requirement of exchanges and serious investors. We prepare the code, organize the process and fix the findings. Saving here means risking everything.
04Can a contract be updated after deployment?
It depends on the architecture, and that decision gets made at design. Upgradeability through a proxy gives flexibility but requires trust in the key holder. Immutability gives trust but no right to a mistake. We'll walk the trade-offs for your model, multisig and timelocks included.
05Will you help with tokenomics if there's only an idea?
Yes, design is the first stage. We'll work through the emission, distribution, vesting and retention mechanics. Our zone is technical soundness: the economics computing and the code reflecting it exactly. The token's legal packaging is your lawyers' zone — we work in tandem with them.
Let’s discuss your project
Free estimate and a proposed solution within one day.