--- title: dApp and Smart Contract Development Services | Avinya Labs description: dApp and smart contract development by Avinya Labs: custom contracts for exchanges, DEXs and tokenization platforms, audited and deployed across multiple chains. url: /service-pages/service-web3-dapp-smart-contracts.html --- [Web3 Development](/service-pages/service-web3-development.html) / dApp & smart contract development # dApp & smart contract development, audited before launch. Custom contracts and decentralized apps for exchanges, DEXs and tokenization platforms, deployed across the chains you need. [Book a call](https://calendly.com/abbylester/30-mins-meeting) [See the work](/service-pages/service-web3-dapp-smart-contracts.html#solutions) [0 Critical findings](/case-studies/web3-smart-contracts.html) [Multi-chain Deployment](/case-studies/web3-smart-contracts.html) [DAO-ready Governance structure](/case-studies/web3-tokenomics-rwa.html) ## dApp & smart contract services. Contracts built, audited and deployed as one engagement. ### Custom smart contracts Contracts for exchanges, DEXs and asset-tokenization platforms. ### dApp development Web front ends that connect users to your contracts. ### DEX & AMM logic Swap and market maker contracts built for correctness. ### Token contracts Token standards and custom rules for your economy. ### Governance contracts On-chain governance, DAO-ready when you need it. ### Multi-chain deployment One engagement across every chain in scope. ### Audit before launch Every finding worked through before go-live. ### Wallet connection Smooth wallet onboarding for users. ### Upgrades & support Safe upgrade paths and support after launch. ## Smart contract work we have shipped. Each result comes from a delivered engagement. Web3 · Security ### Smart contract audit & deployment A full audit and multi-chain deployment, closing every finding before launch. 0 critical findings Link: /case-studies/web3-smart-contracts.html Web3 · Tokenization ### Tokenization platform A token economy and DAO-ready governance for a real-world-asset platform. Market-ready token design Link: /case-studies/web3-tokenomics-rwa.html Web3 · Exchange ### Centralized crypto exchange Matching engine, custody and KYC/AML built from scratch in a 20-week build. 99.9% uptime since launch Link: /case-studies/web3-crypto-exchange.html ## Building a dApp? [Book a call](https://calendly.com/abbylester/30-mins-meeting) ## From idea to launch. Four stages, with a working version reviewed at each one. ### Discovery Map the dApp, the systems and data involved, and what good looks like. Discovery notesDone - Users and flows - Chains in scope - Launch date ### Scope & architecture Agree the architecture, success measures and delivery milestones. Solution designDone - Contract architecture - Audit plan - Delivery milestones ### Build Build against real data, with a working version reviewed at each milestone. Working buildDone - Contracts and app built - Audit findings closed - Review at each milestone ### Ship & support Roll out to production with monitoring and a defined support window. Production rolloutDone - Multi-chain launch - Monitoring - Defined support window ## Results from our smart contract work. Each number links to the engagement it came from. 0 Critical findings Smart contracts → Link: /case-studies/web3-smart-contracts.html 99.9% Uptime since launch Crypto exchange → Link: /case-studies/web3-crypto-exchange.html <1 sec Settlement time Stablecoin payments → Link: /case-studies/web3-stablecoin-payments.html ## Engagement models. Pick the shape that fits where you are. Ongoing ### Dedicated team A dedicated team that works as an extension of yours, from first release to scale. Fixed scope ### Project-based A defined scope, milestones and delivery date for a specific product or workflow. Advisory ### Consulting & advisory Architecture and readiness advice before you commit to a build. ## What our clients say. NFT marketplace > “We needed a custom NFT marketplace with royalty management and multi-chain support. Avinya Labs delivered beyond expectations. The platform is fast, visually appealing, and secure. Amazing work!” John W.CEO, ArtX NFT Decentralized exchange (DEX) > “The custom-built DEX solution exceeded our expectations … Security and speed were top-notch, making user onboarding effortless!” Daniel M.Founder, Decentralized exchange Real-world asset tokenization > “We tokenized real estate assets on the blockchain with Avinya Labs, and they made the complex process feel simple.” Laura K.COO, AssetChain ## dApp & smart contract FAQs. ### Which chains do you work with? We choose per use case after comparing chains, custody and infrastructure options. Our smart contract work has shipped across multiple chains. ### How do you handle security? Contracts go through a full audit before launch and every finding is worked through before deployment. Our most recent audit launched with zero critical findings. ### Can you build the front end too? Yes. We build the dApp interface and wallet connection alongside the contracts. ### How long does a Web3 build take? It depends on scope. For reference, we delivered a centralized exchange in 20 weeks and stablecoin payment rails in 5. We agree milestones up front. ## Ready to turn your vision into reality? Tell us the problem, the data, and where manual effort sits today. We'll map the path from MVP to scale. [Book a call](https://calendly.com/abbylester/30-mins-meeting) [See the work](/work/index.html) Or email [contact@avinyalabs.co](mailto:contact@avinyalabs.co)