We build production applications on the most established blockchain ecosystem. DeFi, NFTs, DAOs, and custom dApps — all leveraging Ethereum's unmatched security and composability.
Ethereum remains the most battle-tested and widely adopted blockchain for decentralized applications. With the deepest liquidity, the largest developer community, and the most extensive DeFi ecosystem, Ethereum offers unmatched composability and network effects for serious Web3 projects. Arthiq has deep expertise building production applications on Ethereum mainnet and its L2 ecosystem.
Our Ethereum development practice covers the full application stack — from Solidity smart contracts to subgraph indexing to frontend integration with wallet libraries like wagmi and viem. We understand the practical realities of building on Ethereum: gas optimization for mainnet, the nuances of each L2 execution environment, and the composability patterns that allow your application to integrate with the broader ecosystem.
Whether you are deploying a DeFi protocol, launching an NFT collection, building a DAO governance system, or creating a custom on-chain application, our Singapore-based team delivers Ethereum applications that meet the highest standards of security and user experience.
The Ethereum ecosystem now spans mainnet L1 and multiple L2 networks, each with its own characteristics. We deploy on Ethereum mainnet, Arbitrum, Base, Optimism, and Polygon, selecting the right network based on your application's requirements for security, cost, and speed.
For applications that need the highest security guarantees and access to the deepest liquidity, Ethereum mainnet remains the right choice despite higher gas costs. For consumer applications where transaction costs must be minimal, L2 networks like Base and Arbitrum offer the same Solidity development experience with dramatically lower fees.
We help teams make informed decisions about L1 versus L2 deployment, and we build architectures that can operate across multiple networks simultaneously. This includes cross-chain messaging, state synchronization, and unified user experiences that abstract away the complexity of multi-chain operations.
Ethereum hosts the vast majority of DeFi value locked, and building financial applications here means access to the richest composability layer in all of crypto. We build lending protocols, AMMs, yield aggregators, staking platforms, and derivatives systems that integrate with existing Ethereum DeFi infrastructure.
Our DeFi contracts interact with Uniswap, Aave, Compound, Curve, and other established protocols. We understand the integration patterns, oracle requirements, and liquidity dynamics that make Ethereum DeFi work. This composability is Ethereum's greatest strength, and we build applications that leverage it fully.
We also build the infrastructure around DeFi contracts — subgraphs for event indexing, keeper bots for time-sensitive operations, analytics dashboards for protocol monitoring, and governance interfaces for parameter management. A complete DeFi application on Ethereum requires this full operational stack.
Our Solidity development for Ethereum follows a rigorous process. We use Hardhat and Foundry as development frameworks, OpenZeppelin as the foundation for standard functionality, and a comprehensive testing methodology that includes unit tests, integration tests, fuzz testing, and invariant testing.
Gas optimization is critical for Ethereum mainnet contracts. We apply storage packing, calldata optimization, minimal proxy patterns, and assembly-level techniques to minimize the cost of every transaction. For L2 deployments, we optimize differently — focusing on calldata size since that drives L2 costs rather than execution gas.
All contracts are delivered audit-ready with complete natspec documentation, detailed test coverage reports, and deployment scripts that are versioned and reproducible. We manage the full deployment lifecycle from testnet to mainnet, including contract verification on Etherscan and initial configuration.
Smart contracts are only half the application. We build complete Ethereum dApp frontends using Next.js with wagmi and viem for wallet integration. Our frontends support MetaMask, WalletConnect, Coinbase Wallet, and other popular providers, with chain switching for multi-network applications.
We implement real-time data updates using event subscriptions and subgraph queries, optimistic UI updates for better perceived performance, and transaction status tracking that keeps users informed throughout the confirmation process. The result is a Web3 application that feels as responsive as a traditional web application.
Arthiq delivers complete Ethereum applications — from contract architecture to deployment to frontend integration. Our team at 68 Circular Road, Singapore, brings a Product Owner mindset to every engagement, owning quality and delivery end-to-end. Contact founders@arthiq.co to discuss your Ethereum project.
From DeFi protocols to full-stack dApps, we build production applications on the most trusted blockchain ecosystem.