Software Engineering for Blockchain & Web3
Build production-grade DeFi protocols, NFT marketplaces, tokenization platforms, and Web3 enterprise solutions. Our blockchain engineers combine deep smart-contract expertise with battle-tested backend infrastructure.
The Challenges We Solve
We have worked across dozens of blockchain & web3 projects. These are the pain points we hear most, and know how to fix.
Smart contract vulnerabilities lead to multi-million dollar exploits and total loss of user trust
Cross-chain interoperability is essential but technically complex and constantly evolving
Regulatory uncertainty around tokens, DeFi, and NFTs varies by jurisdiction and changes frequently
Web3 UX is still confusing, wallet onboarding, gas fees, and transaction confirmation frustrate mainstream users
Scaling on-chain operations while keeping transaction costs manageable requires L2/sidechain expertise
Our Blockchain & Web3 Solutions
From product strategy to production deployment, our dedicated teams cover the full engineering lifecycle.
DeFi Protocol & Smart Contract Development
Design and build DeFi protocols: DEXs, lending/borrowing platforms, yield aggregators, and staking mechanisms. We write audited Solidity/Rust smart contracts with comprehensive test suites, formal verification, and gas optimisation. Security-first development with multi-sig governance.
NFT Marketplace & Digital Asset Platform
Full-stack NFT marketplace engineering, minting workflows, lazy minting, royalty enforcement (EIP-2981), auction mechanisms, collection management, and IPFS/Arweave metadata storage. We have shipped marketplaces handling 50K+ minted assets.
Enterprise Tokenization & Supply Chain
Real-world asset tokenization (RWA) for real estate, commodities, and securities. Supply chain traceability using Hyperledger Fabric and Polygon. We build the bridge between enterprise ERP systems and on-chain verification, provenance, authenticity, and compliance in one platform.
Wallet, Bridge & Infrastructure
Non-custodial wallet development (MPC, social recovery), cross-chain bridge engineering, indexing infrastructure (The Graph, custom indexers), and Layer 2 integration (Arbitrum, Optimism, Base). We make Web3 infrastructure reliable and developer-friendly.
Smart Contract Security & Token Regulations
Every smart contract we ship goes through internal security review, automated vulnerability scanning (Slither, Mythril), and we coordinate with third-party audit firms. We architect upgrade patterns (proxy contracts, diamond pattern) so your protocol can evolve safely.
Smart contract audit standards (Trail of Bits, OpenZeppelin audit methodology)
MiCA (Markets in Crypto-Assets) compliance for EU token offerings
SEC securities law considerations for token classification (Howey Test analysis)
FATF Travel Rule compliance for virtual asset service providers (VASPs)
SOC 2 Type II for custodial and infrastructure services
Relevant Tech Stack
Technologies our blockchain & web3 engineering teams work with daily.
Frequently Asked Questions
Which blockchains do you develop on?▾
Do you do smart contract audits?▾
Can you build a DeFi protocol from scratch?▾
How do you handle Web3 UX for mainstream users?▾
Trusted by Engineering Teams Across 15+ Countries
Ready to build your blockchain & web3 product?
Talk to an InApps ODC consultant. We will scope your project, recommend a team structure, and have engineers interviewing within 5 business days.