Can you build a platform for the SFC's regulatory sandbox?

Yes, we build infrastructure with the reporting and monitoring controls suited to piloting new payment models under the SFC's La Arenera sandbox.

What does a smart contract audit cost and how long does it take?

Internal review and hardening is included in every build; independent third-party audits typically run 2-4 weeks depending on contract complexity and are quoted by the audit partner.

Can you audit a contract you didn't build?

Yes, we regularly review third-party and legacy contracts, delivering a findings report with severity ratings and remediation guidance.

Do you build on chains other than Ethereum?

Yes — Solidity-based EVM chains (Polygon, BNB Chain, Avalanche) and Rust-based chains like Solana.

What standards do you follow for tokens and NFTs?

ERC-20, ERC-721, ERC-1155, BEP-20, and SPL token standards, extended with custom logic where your product requires it.

Blockchain & Crypto · Colombia

Smart Contract Development & Audit in Colombia

Smart contracts are the trust layer of every blockchain product — one vulnerability can drain a treasury overnight. Hurain Technologies writes, tests, and hardens Solidity and Rust-based smart contracts for tokens, NFTs, DeFi protocols, and enterprise use cases, with security review built into every stage rather than bolted on at the end. In Colombia, that means building to the technical expectations of Americas: Payment platforms and specialized deposit and payment companies (SEDPEs) are authorized and supervised by the Superintendencia Financiera de Colombia (SFC).

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Colombia Regulatory Landscape

What smart contract development buyers in Colombia need to know

Payment platforms and specialized deposit and payment companies (SEDPEs) are authorized and supervised by the Superintendencia Financiera de Colombia (SFC).
The SFC operates a regulatory sandbox (La Arenera) that has allowed fintechs to pilot new payment and crypto-adjacent models under supervised conditions.
Crypto-asset activity in Colombia currently operates without a dedicated licensing regime, with the SFC issuing guidance on AML risk rather than formal registration.
We build the technical controls these frameworks expect, alongside Colombia-qualified legal and compliance counsel.

This information is provided for general orientation only and is not legal or licensing advice. Always confirm current requirements with qualified local counsel.

The Challenge

Problems we see teams struggling with

Reentrancy and logic vulnerabilities

Unaudited contracts are a common attack vector; a single flaw can lead to irreversible loss of funds.

High gas costs eroding user experience

Inefficient contract logic makes transactions expensive and discourages adoption.

Upgrade and governance risk

Poorly designed upgrade patterns create centralization risk or lock teams out of fixing bugs post-launch.

Missing audit trail before funding or listing

Exchanges, investors, and launchpads require a clean audit report before they will list or fund a token.

Integer overflow and precision errors

Fixed-point arithmetic mistakes in fee calculations or reward distributions silently misallocate funds long before anyone notices the discrepancy.

Untested edge cases in access control

Role-based permission systems that work in the happy path often have gaps that let an unintended caller trigger a privileged function.

Our Approach

How we deliver smart contract development in Colombia

Custom contract development

Token contracts (ERC-20, BEP-20), NFT contracts (ERC-721, ERC-1155), staking, vesting, DAO governance, and marketplace contracts.

DeFi protocol contracts

AMMs, lending/borrowing pools, yield vaults, and liquidity mining contracts with oracle-secured pricing.

Security-first development

Checks-effects-interactions patterns, reentrancy guards, access control, and pausability designed in from day one.

Gas optimization

Storage packing, batch operations, and assembly-level optimization to reduce user transaction costs.

Independent audit coordination

We prepare documentation, test coverage, and remediate findings for third-party security audits.

Formal verification support

For contracts handling significant value, mathematical proof that critical invariants hold under every possible input, not just the cases we thought to test.