Smart contract
development
Tokens, vesting, staking and DeFi logic built around your product. We define the rules, develop and test the code, and prepare contracts for deployment and integration with your application.
A short description of your project is enough to start.
01 / USE CASES
What does your contract need to do?
A smart contract executes agreed rules on a blockchain. The starting point is your product logic: issuing assets, distributing tokens or coordinating participants.
Tokens
Issuance, supply, mint and burn. ERC-20, BEP-20 and TRC-20 for your network.
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NFT contracts
Collections, ownership rights, minting limits and NFT transfer rules.
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Staking & farming
Pools, reward accrual, lock-up periods and asset withdrawal rules.
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Token sales & vesting
Sale rounds, whitelists, allocations and token release schedules.
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Oracles
External data for contracts: prices, events and freshness checks.
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Cross-chain contracts
Messaging and asset interactions across blockchain networks.
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Referral programs
Referral tracking, participation tiers and transparent reward rules.
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Stablecoins
Issuance, redemption, collateral and access control for operations.
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RWA tokenization
Asset registers, participant rights and transactions with digital shares.
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NFT marketplaces
Minting, listings, sales, auctions and royalty distribution.
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DAO & governance
Proposals, voting, delegation and treasury management.
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DeFi lending
Liquidity pools, collateral, interest and liquidation scenarios.
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02 / DELIVERABLES
What you receive
We agree on deliverables and acceptance criteria before work begins. Frontend, backend and a separate audit are scoped as distinct workstreams.
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Logic specification
Flows, roles, states, limits and calculation rules.
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Source code
Contract repository, dependencies and build configuration.
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Tests and checks
Expected and invalid flows, with invariant testing where appropriate.
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Deployment
Scripts and instructions for testnet and the agreed mainnet launch.
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Documentation and access
Functions, addresses and permissions documented for your team and integrators.
03 / COST AND TIMELINE
Estimate the behaviour, not just the code
Smart contract development cost depends on behaviour, the target network and external dependencies. Requirements readiness and integration scope also affect the schedule.
Logic and permissions
Contract count, calculations, access control and upgrade requirements.
Product integrations
Wallets, frontend, backend, oracles and third-party protocols.
Validation and launch
Tests, audit preparation, deployment and support scope.
04 / A FREEBLOCK PROJECT
SAWA Launchpad
An IDO launchpad and DeFi platform from our portfolio, bringing token logic, allocation trading and user journeys together.
Read the full caseThe task
Bring project launches, a marketplace, staking and farming into one platform.
What we built
- Developed the IDO launchpad and allocation marketplace.
- Implemented staking, farming and a referral programme.
- Connected Chainlink oracles and automation.
The full case describes the implementation and technology stack.
Contracts, participant dashboards, rounds, allocations and platform management. Explore the complete product scope.
05 / ARCHITECTURE AND VALIDATION
Security starts with the architecture
We consider how the contract interacts with administrators, data and other protocols as well as how individual functions behave.
Access and upgrades
Define role owners, limits on administrative actions and upgrade procedures. Multisig and timelocks are chosen for the governance model.
Assets and calculations
Check reentrancy, rounding, boundary values and unusual token behaviour.
External dependencies
Examine oracle failures, delays and contract interactions. Development checks and a separate audit have different scopes.
For products handling assets, plan for a separate audit and remediation. Testing and auditing reduce risk but cannot guarantee that no vulnerabilities remain.
Technologies and integrations
Technologies
Blockchains
Technical references: OpenZeppelin Contracts · Solidity security considerations
06 / PROCESS
How we work
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Specify
Define participant actions and constraints.
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Design
Agree on the network, contracts, roles and integrations.
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Build
Implement the logic and validate it with tests.
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Prepare to launch
Address findings and hand over code and deployment instructions.
07 / PORTFOLIO
Our projects
All projectsWhat our clients say
All reviewsIn the end, we received a complete, working product. The team is responsible, stays in touch and is committed to the outcome. I can recommend them for complex development projects.
Product development
Review excerpt
The team immersed themselves in the project and proposed a clear architecture and a phased work plan. All the key MVP features were implemented with security and scalability requirements in mind.
Crypto wallet · Web & Mobile
Review excerpt
08 / GOOD TO KNOW
Questions & answers
How much does smart contract development cost?
We estimate the business logic, contract count, network, integrations and validation. A standard token, vesting contract and DeFi protocol have different scopes. Cost and schedule follow the agreed requirements.
Can we start without a specification?
Yes. Describe the product, participants, asset flows and target network. We can help define the rules and acceptance criteria before development.
Which blockchains do you develop for?
We scope work for Ethereum and EVM networks, TON, Solana and TRON. The choice depends on users, asset standards and integrations; architecture is agreed for each target network.
Is an audit included in development?
Testing and code review are included in the agreed development plan. A separate audit has its own scope, report and remediation review, which are estimated separately.
Can you modify an existing contract?
We first review the source, permissions and upgrade architecture. An immutable deployed contract may require a new deployment and migration. We agree on the procedure before implementation.
Do you hand over source code and documentation?
Yes. The agreed handover covers the repository, tests, configuration, instructions and role information. Operational access is agreed with your team.
FREEBLOCK / LET’S TALK
Start with your project.
Describe the mechanism, participants and network. We will help turn the idea into a clear contract and integration scope.