HackBG

hack is a leading blockchain development company specializing in Web3 and distributed ledger technology (DLT) solutions. Founded in 2016 and based in Bulgaria, the company has established itself as a trusted technical partner for major Web3 projects including Chainlink Labs, Velodrome Finance, and Aeternity Blockchain.

Core Products/Services

hack offers comprehensive blockchain development services spanning smart contract engineering, DeFi protocol development, dApp creation, and blockchain infrastructure. Their team specializes in multiple blockchain platforms including Ethereum (EVM), Cosmos, Solana, Sui, and other emerging chains. With over 120 smart contracts deployed to mainnet and 84+ projects delivered, they bring production-grade expertise to every engagement.

Key service areas include:

• Smart contract development in Solidity, Rust, and CosmWasm
• Chainlink oracle integrations (price feeds, VRF, automation, CCIP)
• DeFi protocol development (DEXs, lending, AMMs, yield farming)
• Blockchain infrastructure and tooling (bridges, SDKs, indexers, APIs)
• Web3 UI/UX design and development
• Smart contract audits and formal verification
• Zero-knowledge technology development
• DAO governance systems

The company has also developed several open-source products including Fadroma (smart contract framework), Undexer (blockchain indexing service), Web3 Starter templates for EVM and Solana, Waellet (browser extension), and various developer tools.

Key Strengths

Deep Technical Expertise: With 8+ years in blockchain development, hack's team brings extensive experience across multiple chains and protocols. They have particular expertise in Chainlink integrations, having built critical components that extend Chainlink's platform capabilities.

Security-First Approach: Every line of code is written with security best practices built in. The team conducts thorough audits and follows industry standards to protect users and assets. They offer smart contract audits and formal verification services alongside development.

Production-Ready Code: hack has deployed 120+ smart contracts to mainnet across 15+ blockchain networks. Their work powers real-world DeFi protocols, NFT platforms, and enterprise blockchain solutions.

High-Agency Partnership: The company operates as a strategic partner with direct C-level access, providing proactive problem-solving throughout the full project lifecycle from architecture and engineering to UI/UX and growth support.

Notable Clients/Projects

Chainlink Labs: Developed critical components enabling users to interface with new data sources seamlessly. Multiple case studies include Chainlink MakerDAO integration, Sports Prediction dApp, Functions demo applications, and cross-chain compliance solutions.

Velodrome Finance: Built rewards distribution automation system with Chainlink integration for the Optimism-based DEX.

Sienna Network: Developed SiennaSwap (privacy-preserving, front-running resistant AMM DEX) and SiennaLend (private over-collateralized lending protocol) using Secret Network.

Namada: Created Undexer blockchain indexing service and Shielded Live blockchain explorer.

Aeternity Blockchain: Long-term development partnership including Waellet browser extension and various blockchain infrastructure components.

Why Choose hack

hack stands out as a blockchain development partner through their combination of deep technical expertise, security focus, and proven track record. The team has successfully delivered complex projects for industry leaders, demonstrating their ability to handle sophisticated requirements across multiple blockchain ecosystems. Their open-source contributions and active involvement in the Web3 community showcase their commitment to advancing blockchain technology. With an agile development methodology and emphasis on interoperability, hack delivers solutions that integrate seamlessly with existing systems while maintaining the flexibility to adapt to the rapidly evolving blockchain landscape.