DeFi apps built to survive an audit — and a hostile chain
We build DeFi products with the security most projects skip: DEXs, lending, yield, and RWA-backed DeFi — with contracts written to pass audit and protections against MEV and reentrancy. Fixed scope, $15k–$100k.
Scope your DeFi build →See our RWA workWhat we build in DeFi
The products, and the protections they need
Plain list. Every one comes with the security work that keeps it from getting drained.
Proof
Real-asset backing, not just yield farming
The institutional money in DeFi wants real assets behind the token. We've built that.
1:1 gold-backed token
Custody-verified backing with reconciled on-chain supply — real value, not synthetic exposure.
Fractionalized property
KYC-gated fractional ownership of real properties, with per-asset registries.
Written to pass audit
MEV, reentrancy, and oracle protections built in — the standard behind our production contracts.
Know the number before you commit
Focused protocol MVPs (single-chain DEX or lending pool) start around $15k. Production platforms with audits, cross-chain, and compliance run $25k–$100k. Smart-contract audits are quoted separately; we prepare contracts to pass them.
How we build
DeFi is adversarial. We build for the attacker.
Every DeFi contract is a bounty for whoever finds the bug. We assume that from line one.
Threat-model first
Oracle manipulation, MEV, flash-loan attacks, reentrancy — mapped before logic is written.
Test against mainnet
Fork tests, fuzzing, and economic-attack simulation against real chain conditions.
Audit-ready code
Clean, documented contracts prepared for third-party audit and VAPT review.
Deploy & monitor
Verified on-chain, with monitoring for anomalies and a plan for the first incident.
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 Core
Web3 SDKs
Graph APIs
Oracle Sync
Node Runners
L2 AdaptersCommon questions
DeFi development at Essen Software covers AMMs, swap logic, concentrated liquidity (e.g. Uniswap V3-style), MEV protection, and multi-chain deployment (CCIP, LayerZero, Axelar) for DEXs and liquidity protocols.
We use private-order-flow RPCs, slippage guardrails, and deterministic swap logic to minimize extraction. Protocol design and testing target MEV resistance before mainnet.
Yes. We build Uniswap V3-style CLMMs with custom tick spacing and leverage CCIP, LayerZero, and Axelar for seamless multi-chain protocol deployments.
Fixed-scope DeFi builds at Essen Software start around $15k for a focused protocol MVP (single-chain DEX or lending pool) and $25k–$100k for production platforms with audits, cross-chain support, and compliance features. Smart-contract audit costs are quoted separately and we prepare contracts to pass them.
Yes — RWA-backed DeFi is where the institutional demand is. We shipped a 1:1 gold-backed token platform with custodial vault wallets and a fractionalized real estate platform, both with KYC-gated onboarding. If your DeFi product needs real asset backing, see our RWA tokenization services.
Why choose Essen for DeFi
Building a DeFi product that holds real value?
Thirty minutes. Tell us the mechanism 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 DeFi build