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Smart Contracts Development Company for DeFi, NFT & Enterprise Blockchain Solutions
KISS Software provides custom smart contract development for all types of Web3 projects: DeFi platforms, NFT collections, gaming dApps, and enterprise blockchain products. We design business logic, perform testing, manage deployment, and ensure security in line with industry standards.
Why should you order smart contracts from KISS Software?
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50+ Web3 projects in our portfolioDeFi, NFT, DAO, GameFi, and enterprise blockchain solutions.
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Compliance with major standards
ERC, BEP, SPL, CW standards and secure coding best practices.
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Strong expertise in EVM & cross-chain integrations
Deep understanding of Ethereum-compatible networks and interoperability.
What we do for you
Business logic & process analysis
We define the contract’s purpose: finance, ownership, access rights, or game mechanics. Design architecture and select the optimal stack: Solidity, Vyper, Move, or Rust.
Smart contract development
We build contracts from scratch or based on standards (ERC-20, ERC-721, ERC-1155, and custom implementations). Follow security best practices and use trusted libraries like OpenZeppelin.
Testing & simulations
Unit tests, testnet deployments, attack simulations, and edge-case modeling to ensure predictable behavior.
Deployment & Web3 integration
Deploy contracts to Ethereum, BNB Chain, Polygon, Optimism, Solana, and others. Integrate with frontend using Web3.js, ethers.js, or SDKs.
Security audit & vulnerability checks
Internal audits and preparation for external audits. Mitigation of risks such as reentrancy, overflows, access control flaws, and oracle manipulation.
Support & upgrades
Documentation, upgradable architectures (proxy patterns), monitoring, and post-launch support.
Looking for a reliable and secure smart contract?
Development, deployment, and support by one team
Smart contract development stages
1
Step 1
2
Step 2
3
Step 3
4
Step 4
5
Step 5
6
Step 6
1
Step 1
2
Step 2
3
Step 3
4
Step 4
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Step 5
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Step 6
Step 1 Requirements & logic analysis
We define goals and functions: token, NFT, DAO, or financial logic. Analyze user roles, interactions, constraints, and events. Optimize logic for security and gas efficiency. Prepare technical specification and roadmap.
Time to deliver
~ 1-2 days
Step 2 Architecture & design
Design modular contract architecture, dependencies, and integrations (oracles, DAO modules). Define tokenomics: issuance, fees, rewards, liquidity pools. Document specifications.
Time to deliver
~ 2-4 days
Step 3 Smart contract coding
Implement contracts using Solidity, Vyper, Rust, or Move. Integrate OpenZeppelin patterns for access control, pausability, and upgrades. Document functions and interfaces.
Time to deliver
~ 3-7 days
Step 4 Testing & debuggingи отладка
Functional, negative, and scenario-based tests. Testnet deployment and user behavior simulation. Bug fixing and test reports.
Time to deliver
~ 5-15 days
Step 5 Deployment & integration
Deploy to the selected network, integrate with frontend, configure permissions and events. Verify contracts on block explorers (Etherscan, BscScan, etc.).
Time to deliver
~ 2-4 days
Step 6 Support, audits & upgrades
Monitoring, notifications, upgrade mechanisms, and technical support. Assistance with external audits and further scaling.
Time to deliver
~ On demand
Technologies and tools we use
Java
Javascript
MySQL
PHP
Java
Javascript
MySQL
PHP
FAQ
Yes, we implement OpenZeppelin Proxy patterns or custom upgrade-safe architectures.
Yes. We support Solana, Aptos, Cosmos, Polkadot, Near, and others using Rust, Move, or AssemblyScript.
ERC-20, ERC-721, ERC-1155, ERC-4626, CW20, SPL, and custom game/business contracts.
Yes. We perform internal audits and prepare contracts for external audits (CertiK, Hacken, etc.).
Audit and upgrades for existing smart contracts
We will review, improve, and optimize your contract
