Smart Contract Development

Code that executes itself.
No middlemen,
no exceptions.

Production-grade smart contracts across Ethereum, Solana, Polygon, and beyond - written by engineers who understand the economics as well as the syntax. We build, audit, and deploy contracts that handle real money without giving attackers a surface to exploit.

Deployed on
Ethereum
Solana
Polygon
BNB Chain
Avalanche
Arbitrum
180+ Smart contracts deployed to production
$2.8B+ Total value locked in contracts we've built
0 Security exploits across our audited contracts
4 Languages - Solidity, Rust, Vyper, Move

Every type of contract, written
to production standard.

We don't adapt templates and call it custom development. Every contract starts from scratch, with the economics modelled before the first line of Solidity is written.

Token Engineering

ERC-20 utility tokens, governance tokens, fee-sharing mechanisms, vesting schedules, and multi-chain deployment. We handle the contract, the deployment, and the Etherscan verification - not just the ABI.

ERC-20 ERC-777 Vesting Multi-chain Gnosis Safe

NFT & Digital Asset Contracts

ERC-721 and ERC-1155 contracts with on-chain royalties, lazy minting, reveal mechanics, allowlist management, and marketplace integrations. Tested under the gas conditions real mints operate in.

ERC-721 ERC-1155 EIP-2981 Merkle Allowlist IPFS

DAO Governance & Treasury

Proposal systems, quorum logic, timelock controllers, multi-sig treasury management, and vote delegation. We build governance contracts that are actually usable - not just technically complete.

Governor Bravo OpenZeppelin Timelock Snapshot Gnosis

Solana Programs (Rust)

Native Solana programs in Rust and Anchor framework - SPL tokens, staking pools, NFT marketplaces on Metaplex, and compressed NFTs. We write Anchor correctly, not just quickly.

Rust Anchor SPL Tokens Metaplex cNFTs

Smart Contract Audit

Line-by-line security review covering reentrancy, access control flaws, arithmetic issues, oracle manipulation, flash loan attack vectors, and business logic vulnerabilities. Manual review - not just static analysis.

Slither Echidna Foundry Fuzzing Manual Review Report

From spec to mainnet in
a structured six-phase process

Most smart contract disasters happen in the design phase, not the code. We spend the first two phases making sure the logic is provably correct before anyone opens a code editor.

01
Phase 1
Requirements & Economic Design

We model the tokenomics, incentive structure, and attack surface before writing any code. A protocol with correct Solidity and broken incentives fails in production - sometimes expensively.

Token flow diagrams
Attack vector mapping
Economic model review
02
Phase 2
Architecture & Specification

Formal specification of every function, state transition, access control rule, and edge case. Written and signed off before development begins - the spec is the source of truth, not the code.

Function specification
State machine diagram
Access control matrix
03
Phase 3
Development & Unit Testing

Contract development in Solidity, Rust, or Vyper depending on target chain. Foundry-based unit tests written in parallel - coverage above 95% before the code leaves our hands.

Contract source code
Foundry test suite
>95% test coverage
04
Phase 4
Internal Audit & Fuzzing

Our own security team reviews the code before any external audit - Slither static analysis, Echidna property-based fuzzing, and manual reentrancy and access control review.

Internal audit report
Fuzz test results
Resolved findings log
05
Phase 5
External Audit (if required)

For contracts handling significant value, we coordinate external audits with specialist firms (Certik, Trail of Bits, Sherlock) and manage the remediation process from their findings.

External audit report
Remediation proof
Certification letter
06
Phase 6
Deployment & Monitoring

Staged deployment - testnet first, then mainnet with a scripted deployment process and Etherscan verification. Post-deployment monitoring via Tenderly alerts and Forta detection bots.

Deployment scripts
Verified source code
Live monitoring alerts

Every major chain. Every ERC
standard your project needs.

We're not a single-chain shop. Our engineers hold deep familiarity with EVM chains and non-EVM ecosystems - so the advice you get is based on what's right for the use case, not what we happen to know.

Ethereum Solidity / Vyper

The gold standard for DeFi, NFTs, and governance protocols. High security guarantees, enormous tooling ecosystem, and the largest developer community.

EVM-compatible
Largest DeFi TVL
Most audited standard
Layer 2 bridging
Solana Rust / Anchor

65,000 TPS and sub-cent transaction fees make Solana the right choice for high-frequency applications and NFT collections where gas cost is a product constraint.

Rust native programs
Anchor framework
SPL token standard
Metaplex NFTs
Polygon Solidity

Ethereum-compatible with dramatically lower fees. The practical choice for applications that need Solidity compatibility but can't absorb mainnet Ethereum gas costs.

Full EVM compatibility
Low-cost gaming & NFTs
zkEVM available
Instant finality
BNB Chain Solidity

High throughput and low transaction costs with a large retail user base. Most Ethereum contracts deploy to BNB Chain with minimal modification.

EVM-compatible
BEP-20 / BEP-721
Large retail userbase
PancakeSwap ecosystem
Arbitrum & Base Solidity

Optimistic rollups with Ethereum security and near-mainnet tooling. The current favourite for DeFi protocols that need low fees without abandoning Ethereum's security model.

Ethereum L2 security
Low gas fees
Full EVM compatibility
Growing DeFi ecosystem
Avalanche Solidity

Sub-second finality with custom subnet deployment - ideal for institutional DeFi, gaming platforms, and applications that need dedicated blockspace with Solidity compatibility.

Subnet architecture
Sub-2s finality
C-Chain EVM
Enterprise subnets

We implement every major token and governance standard correctly - including the parts of the specification that most developers skip because they look optional until they aren't.

ERC-20
Fungible Token Standard
The baseline for utility tokens, stablecoins, and governance tokens. We implement transfer hooks, permit (EIP-2612), and flash mint (EIP-3156) where relevant.
ERC-721
Non-Fungible Token
NFT standard with on-chain royalty enforcement via EIP-2981, enumerable extension for collection queries, and Merkle-based allowlist for controlled minting.
ERC-1155
Multi-Token Standard
Semi-fungible assets, gaming items, and edition drops. More gas-efficient than ERC-721 for batch operations - the right default for gaming and phygital projects.
ERC-4626
Tokenised Vault Standard
The canonical interface for yield-bearing vaults. We implement the full spec including preview functions - critical for DeFi composability and integration by aggregators.
EIP-712
Typed Structured Data Signing
Off-chain signature schemes for gasless approvals, permit functions, and meta-transactions. Properly implemented with domain separators and nonce management.
EIP-2535
Diamond Proxy Pattern
Upgradeable contract architecture that bypasses the 24KB contract size limit. Appropriate for complex protocols - implemented with proper facet management and access control.
Governor
DAO Governance (OpenZeppelin)
On-chain proposal, vote, and execution lifecycle with quorum, timelock, and vote delegation. Compatible with Snapshot off-chain voting for gasless participation.
ERC-7540
Async Tokenised Vaults
The emerging standard for vaults with asynchronous deposits and redemptions - relevant for RWA (real-world asset) protocols with settlement delays.

Smart contracts don't have a
patch Tuesday. Security is final.

The immutability that makes smart contracts powerful makes security non-negotiable. A vulnerability deployed to mainnet can't be quietly patched at 11pm - it's there until the protocol is migrated or the funds are gone.

Audit Coverage Scope

Every audit covers the full attack surface - not just the vulnerabilities that appear in automated scanner output.

Typical audit coverage 94.8%
Access Control 98%
Reentrancy Vectors 100%
Arithmetic Safety 96%
Oracle Manipulation 92%
Flash Loan Attacks 94%
Business Logic 88%
Tooling used
Slither Echidna Mythril Foundry Hardhat Certora MythX Aderyn
Manual Line-by-Line Review

Every function is read, traced, and challenged by a security engineer - not handed to Slither alone. Automated tools miss business logic vulnerabilities because they don't understand what the contract is supposed to do. We do.

Fuzzing & Property Testing

Echidna property-based fuzzing and Foundry invariant tests generate thousands of random inputs to find edge cases that deterministic unit tests miss. Particularly effective for AMM math and vault accounting.

Access Control & Privilege Review

Every privileged function mapped, every admin key reviewed, every upgrade mechanism evaluated. We check whether the contract can be paused, drained, or upgraded by a single compromised key - and flag it if it can.

Economic Attack Simulation

Flash loan attack scenarios, price oracle manipulation paths, and sandwich attack vectors modelled in Foundry fork tests against mainnet state. This is where automated tools consistently fail and human expertise is irreplaceable.

Audit Report & Remediation

Every finding is categorised by severity (Critical / High / Medium / Low / Informational), explained in plain language with a PoC where possible, and paired with a specific remediation recommendation. We re-review after fixes.

Smart contract engineers who read
audit reports before they write code

The best time to understand how contracts get exploited is before you write yours. Our team has read every major DeFi post-mortem and designed the preventive patterns into our standard templates.

01
Economics before code

A Solidity function that correctly implements a bad economic design is still a failed contract. We model the token flows and incentive structure before anyone opens a code editor - not as a separate deliverable, as a precondition for starting.

02
Security as a default

ReentrancyGuard, SafeERC20, access control, and input validation aren't security add-ons we upsell - they're in every contract we write from line one. OpenZeppelin contracts are starting points, not final answers.

03
Thorough documentation

Every contract ships with NatSpec documentation, deployment scripts, an integration guide, and a risk register. If something goes wrong six months after delivery, your team can understand the code without calling us.

04
Multi-chain native

Our engineers work across EVM chains and Solana regularly - not one with a passing familiarity with the other. Chain selection advice is based on actual experience with the tradeoffs at the protocol level.

05
Full test coverage expected

We consider 95%+ test coverage a minimum, not a bonus. Foundry invariant tests, property-based fuzzing, and fork tests against mainnet state are standard parts of our development process - not optional extras.

06
You own everything

Every line of Solidity, every test file, every deployment script, every audit report - all transferred to you under a full IP assignment agreement. No proprietary SDKs, no ongoing licence fees.

The questions clients ask before they engage

Honest answers about smart contract development, audit timelines, and costs. Anything missing? Ask directly.

0 exploits
Across 180+ contracts in production
The honest range is wide - an ERC-20 token with basic tokenomics can be delivered in 2 weeks for a relatively modest cost; a full DeFi protocol with multiple contract interactions, custom AMM math, governance, and a security audit is a multi-month, multi-hundred-thousand-pound engagement. The biggest driver of cost isn't the Solidity - it's how well-specified the requirements are when we start. Vague specs become expensive change requests. We offer a free scoping call and will give you a realistic estimate before you commit.
Yes, and the timing matters. A security audit done after testnet but before mainnet is valuable. An audit done after mainnet launch and a $4M exploit is very expensive validation. The difference between a testnet and a mainnet contract is only the money at risk - not the attack surface. We recommend internal audit plus external review for any contract that will handle meaningful value, and we run fuzz testing and invariant testing as standard before deployment regardless of network.
Yes - this is a fairly common engagement. We do independent security reviews of contracts written by other teams or by internal engineering teams before mainnet launch. The process is the same: manual review, automated analysis, fuzzing, and a formal report with severity-rated findings. We'll tell you honestly if the contract needs a significant rewrite rather than just patching individual findings.
Solidity runs on the EVM - Ethereum and all EVM-compatible chains (Polygon, Arbitrum, Avalanche C-Chain, BNB Chain, Base). It's more forgiving to write and has the largest tooling ecosystem. Rust runs on Solana (as native programs or via the Anchor framework) and is significantly faster and cheaper to execute but has a steeper learning curve and a smaller tooling ecosystem. The right choice is almost entirely determined by your target chain - not by preference.
A straightforward ERC-20 or ERC-721 contract with a few hundred lines of Solidity can be reviewed in 3–5 business days. A DeFi protocol with multiple contracts, complex math, and external integrations takes 2–4 weeks. External audits from specialist firms (Certik, Trail of Bits) have their own timelines, typically 4–8 weeks for full engagements. We do our internal audit in parallel with the development process rather than as a separate phase at the end - which is the main way we compress overall timeline.
Proxy patterns (Transparent Proxy, UUPS, and Diamond/EIP-2535) allow a contract's logic to be upgraded after deployment while preserving state and address. They solve a real problem - immutability means bugs can't be patched - but they introduce a new one: a compromised upgrade key can drain the protocol. Whether you need an upgrade proxy depends on the protocol's maturity and the team's security model. For early-stage protocols with active development, often yes. For a finished contract where the upgrade key would just be a risk, often no. We'll give you the honest tradeoff for your specific situation.
Yes, and oracle integration is one of the higher-risk parts of DeFi contracts - done wrong it's the attack vector for price manipulation and flash loan exploits. We implement Chainlink Data Feeds with proper staleness checks, circuit breakers, and fallback mechanisms. We also work with Pyth Network for Solana and low-latency applications, and with TWAP oracles for Uniswap V3 integrations where Chainlink isn't appropriate.
Deployment isn't the end of the engagement. We set up Tenderly monitoring and alert rules for anomalous transactions, deploy Forta detection bots for critical invariant violations, and provide a detailed incident response playbook covering what to do if something looks wrong. For protocols with emergency pause functionality, we ensure the pause mechanism is documented and the team knows how to use it under time pressure. We also offer a 30-day post-launch support period as standard.

Your contract, built right
the first time.

Book a free 45-minute technical scoping call. We'll review your protocol design, identify the highest-risk areas, recommend the right chain and architecture, and give you a realistic timeline and cost estimate - before you commit to anything.

Book a Free Scoping Call
No commitment required
NDA available before the call
Technical estimate in 48 hours