Smart contracts that hold real money — and pass the audit
We write and ship smart contracts that back live platforms holding real assets — including a 1:1 gold-backed token and fractionalized real estate, both running today. Audit-ready from the first line, fixed scope, $5k–$50k.
Scope your contracts →See our RWA workWhat we write
Contracts for the jobs that actually get built
Plain list, all shipped. Ask and we'll show you the deployed contract.
Proof
Contracts running in production, not on a testnet
Two live platforms, both holding real value, both built contract-first.
1:1 gold-backed token
Every token backed by one ounce in custody, with on-chain supply reconciled against vaulted metal.
Fractionalized property tokens
Properties split into verified shares with KYC-gated transfers and per-asset ownership registries.
Permissioned & compliant
ERC-3643 / ERC-1400 with whitelisting, transfer restrictions, and compliance hooks built in.
Know the number before you commit
Focused contracts (token, vesting, staking) run $5k–$15k. Protocol-level systems $15k–$50k+. Third-party audit is quoted separately — and we write contracts to pass it the first time, which is the cheapest decision in the whole project.
How we build
Written to survive an adversary, not just a demo
Smart contracts are the one place a bug is permanent and public. We build accordingly.
Threat-model first
We map how the contract can be attacked — reentrancy, overflow, MEV, access — before writing logic.
Test to the edges
Unit tests, fuzzing, and fork tests against mainnet conditions. Coverage isn't optional here.
Audit-ready handoff
Clean, documented code prepared for third-party audit — we've built to pass VAPT and security review.
Deploy & verify
Verified source on-chain, deployment runbook, and monitoring so you see what the contract is doing.
How we work & why it matters
We combine process, technology, and expertise so your product gets built right—from idea to launch.
We use proven stacks and clear delivery so you get results you can measure.
Technologies we use
We build with the stacks and tools your product needs.
Solidity
Ethereum / L2s
Hardhat / Foundry
TypeScript
Rust (Solana/Wasm)
AWS (Off-chain Nodes)Common questions
Smart contract development at Essen Software is writing gas-optimized, auditable Solidity (or Rust for Solana) for tokens, protocols, and DeFi—on EVM chains (Ethereum, Arbitrum, Polygon) and beyond, with formal verification and audit coordination.
We support all EVM chains (Ethereum, Arbitrum, Polygon) and Rust-based chains like Solana. We choose the chain that fits your tokenomics, throughput, and cost requirements.
We use assembly-level optimizations and off-chain scaling to keep gas low. We partner with top auditors and ensure 100% bug remediation before mainnet launch.
Focused contracts (token, vesting, staking) run $5k–$15k fixed scope; protocol-level systems $15k–$50k+. Audit costs are quoted separately — we write contracts to pass audits the first time, which is usually the cheapest decision in the whole project.
Yes — our token contracts back a live 1:1 gold-backed platform (custody-verified supply) and a fractionalized real-estate platform, both with transfer restrictions and KYC gating. If your contracts need to represent real-world assets, see our RWA tokenization work.
Why choose Essen for smart contracts
Have contracts that need to hold real value?
Thirty minutes. Tell us what the contract must do and what's at stake. We'll tell you honestly how to build it safely, what it costs, and how fast it ships.
Scope your contracts