/ Smart Contracts

Smart Contract Development

Production grade smart contracts in Solidity and Rust. Security, gas optimization, and upgradeability built in from the start.

E
Ethereum
Sol
Solidity
Rs
Rust
HH
Hardhat
F
Foundry
OZ
OpenZeppelin
P
Polygon
S
Solana

Smart contracts control real value. They are publicly visible. They are often immutable once deployed. A single vulnerability can result in the permanent loss of millions of dollars. We build like that matters.

/ What We Deliver

Smart contract architecture design
Solidity development for EVM chains
Rust development for Solana and non-EVM
Comprehensive unit and integration test suites
Gas optimization analysis and implementation
Upgradeability patterns (UUPS, Transparent Proxy, Diamond)
Access control and role management systems
Security review and vulnerability assessment
Deployment scripts and infrastructure
Post-deployment monitoring setup
Technical documentation

/ Key Benefits

Security First Architecture

Designed around known attack vectors from the start — reentrancy, overflow, flash loans, oracle manipulation.

Gas Optimization

Optimized storage patterns and function visibility to minimize transaction costs for your users.

Upgradeability Without Compromise

Proxy patterns allowing logic updates while maintaining security guarantees and user trust.

Test Coverage That Matters

Edge cases, attack scenarios, and boundary conditions — not just happy paths.

/ Use Cases

01

Token Contracts

ERC-20, ERC-721, vesting schedules, governance rights, and cross-chain bridge compatibility.

02

DeFi Smart Contracts

AMM, lending, borrowing, staking, yield optimization, and liquidity mining systems.

03

NFT Infrastructure

Minting, royalties (EIP-2981), allowlists, reveal mechanics, and marketplace compatibility.

04

DAO Governance

Proposals, voting, timelocks, multi-sig treasury management, and on-chain governance.

05

Payment and Escrow

Trustless payment systems, milestone-based escrow, subscription mechanics, fee splitting.

06

Bridge Contracts

Cross-chain asset transfer with validator attestation systems and security controls.

/ How Industry Leaders Use This

Market examples — not Tantrija clients unless noted

Uniswap V3

Concentrated liquidity contracts handling billions in daily trading volume.

Aave and Compound

Lending protocol contracts with tens of billions TVL, upgrade architecture, and interest rate models.

OpenSea and Blur

NFT marketplace order matching, royalty distribution, and signature verification at scale.

Chainlink

Oracle network contracts connecting off-chain data to on-chain applications with security at every layer.

/ Get Started

Need Smart Contracts Built the Right Way?

If you need an engineering partner who understands blockchain infrastructure at the protocol level, let us talk. We will tell you honestly whether we are the right fit.

No sales pitch. Just an honest technical conversation.