Public Blockchain Development: Build for Trust, Transparency & Scale
We engineer secure, high-performance public blockchain solutions—from custom networks and dApps to complex smart contracts—that drive decentralized innovation for your business.
Why Partner with Errna for Public Blockchain Development?
We're not just developers; we are architects of decentralized ecosystems. We combine deep technical expertise with strategic business insight to build public blockchain solutions that are secure, scalable, and engineered for success.
AI-Augmented Security
We go beyond standard practices by integrating AI-powered threat detection and continuous smart contract analysis, providing a formidable defense against emerging vulnerabilities in the public domain.
Proven Expertise
With over 1000+ in-house experts and a portfolio of 3000+ successful projects since 2003, our experience in complex software engineering directly translates to robust and reliable blockchain solutions.
Full-Cycle Development
From initial strategy and tokenomics design to dApp development, mainnet deployment, and post-launch support, we provide a comprehensive, end-to-end partnership for your entire project lifecycle.
Future-Proof Architecture
We design for tomorrow's challenges, focusing on scalability through Layer 2 solutions, interoperability with cross-chain bridges, and modular design for easy upgrades and feature additions.
Regulatory Navigation
Our team stays ahead of the complex regulatory curve, offering compliance consulting for KYC/AML and data privacy to ensure your public blockchain project is built on a solid, compliant foundation.
CMMI Level 5 Maturity
Our CMMI Level 5 certified processes guarantee optimized performance, predictable outcomes, and the highest standards of quality and efficiency in every phase of your project.
Global Delivery Model
Leverage our global talent pool and 24/7 development cycle to accelerate your time-to-market. We provide world-class expertise with the efficiency of a remote-first delivery model.
Dedicated PODs
Get a handpicked team of blockchain specialists—developers, architects, QAs, and PMs—working as a seamless extension of your in-house team, ensuring focus, alignment, and rapid progress.
Transparent Process
We believe in complete transparency. Through agile methodologies, regular check-ins, and shared project management tools, you have full visibility into the development process from start to finish.
Our Public Blockchain Development Services
We offer a complete suite of services to bring your decentralized vision to life, covering everything from foundational protocol development to user-facing applications and ecosystem growth.
Custom Blockchain & dApp Development
We build the core components of your decentralized ecosystem, from the underlying protocol to the applications that drive user engagement.
- Custom Public Blockchain Development: Build a new Layer 1 or Layer 2 network from the ground up, tailored with specific consensus mechanisms, governance models, and economic incentives to fit your unique vision.
- Decentralized Application (dApp) Development: Create intuitive, high-performance dApps on leading platforms like Ethereum, Solana, or your custom chain, delivering a seamless user experience that drives adoption.
- Layer 1 & Layer 2 Protocol Development: Engineer foundational blockchain protocols or scalable Layer 2 solutions like rollups and sidechains to overcome the limitations of existing networks and enhance throughput.
Smart Contracts & Oracles
Automate trust and connect your blockchain to real-world data with secure, audited smart contracts and reliable oracle integrations.
- Smart Contract Development & Audit: Write, test, and deploy immutable smart contracts for any use case. Our rigorous, AI-assisted auditing process identifies and mitigates potential security flaws before they can be exploited.
- Oracle Integration Services: Securely connect your smart contracts to off-chain data sources, APIs, and legacy systems, enabling dynamic, real-world applications that respond to external events.
- Cross-Chain Bridge Development: Enable seamless asset and data transfer between different blockchain networks, fostering interoperability and expanding the reach and utility of your dApp.
DeFi & NFT Solutions
Launch cutting-edge platforms for decentralized finance and digital collectibles, built for security, liquidity, and community engagement.
- Decentralized Finance (DeFi) Solutions: Develop a full range of DeFi applications, including decentralized exchanges (DEXs), lending protocols, yield farming platforms, and staking mechanisms.
- NFT Marketplace Development: Create feature-rich, scalable NFT marketplaces for art, gaming assets, collectibles, and more, complete with minting, bidding, and royalty management functionalities.
- Decentralized Autonomous Organization (DAO) Development: Build and launch DAOs with custom governance structures, enabling community-driven decision-making and treasury management for your project.
Infrastructure & Wallets
Provide your users with secure, easy-to-use tools to interact with your ecosystem and ensure your network remains robust and reliable.
- Web3 Wallet Development: Develop secure, user-friendly browser extension or mobile wallets for managing digital assets and interacting with dApps, supporting multiple chains and tokens.
- Blockchain Node Management: Deploy, manage, and maintain full nodes, validator nodes, or RPC endpoints to ensure your application has reliable, low-latency access to the blockchain network.
- Blockchain Migration & Upgrades: Seamlessly migrate your dApp or assets from one blockchain to another, or execute complex network upgrades with minimal downtime and risk.
Strategy & Security
Fortify your project with a sound economic model and a defense-in-depth security posture, protecting your assets and your users' trust.
- Tokenomics Design & Consulting: Architect a sustainable economic model for your token, defining its utility, distribution, and incentive mechanisms to encourage long-term growth and participation.
- Blockchain Security & Penetration Testing: Conduct comprehensive security audits and penetration tests on your entire stack—from smart contracts to frontend interfaces—to identify and remediate vulnerabilities.
- AI Integration with Blockchain: Leverage AI to enhance your blockchain solution with features like predictive analytics for on-chain data, intelligent fraud detection, and dynamic NFT generation.
Proven Success in Public Blockchain Innovation
We deliver tangible results. Explore how we've helped clients launch groundbreaking decentralized platforms that solve real-world challenges.
Launch of a Secure DeFi Lending Protocol
FinTech / Decentralized Finance
A FinTech startup aimed to disrupt the traditional lending market by creating a decentralized, autonomous lending and borrowing protocol on the Ethereum blockchain. They needed a partner who could not only build the complex smart contracts but also ensure institutional-grade security to attract significant liquidity.
Our Solution:
- Developed a suite of interconnected smart contracts for asset pooling, interest rate calculation, and collateral management.
- Implemented an aggressive gas optimization strategy, reducing transaction costs for users.
- Conducted a multi-layered security audit, including AI-powered static analysis and manual code review, resulting in the patching of 12 potential vulnerabilities.
- Built a user-friendly dApp interface that simplified the process of lending and borrowing for non-technical users.
Global Supply Chain Traceability on a Public Ledger
Logistics & Manufacturing
A Fortune 500 logistics company needed to provide its clients with immutable proof of provenance for high-value goods. They wanted to leverage a public blockchain for maximum transparency and trust, but were concerned about transaction costs and data privacy for sensitive shipment details.
Our Solution:
- Architected a solution on a Layer 2 ZK-Rollup to batch thousands of transactions, drastically reducing costs.
- Used zero-knowledge proofs to anchor shipment data to the public mainnet without revealing sensitive commercial information.
- Developed an oracle system to securely feed real-world logistics data (GPS, temperature) into the blockchain.
- Created a permissioned dashboard for stakeholders to view and verify the supply chain journey of specific assets.
Scalable NFT Marketplace for a P2E Gaming Studio
Gaming & Entertainment
A fast-growing "Play-to-Earn" gaming studio needed a high-throughput, low-cost NFT marketplace for their in-game assets. Their existing solution on Ethereum was too slow and expensive, leading to a poor user experience and hindering player growth.
Our Solution:
- Managed the seamless migration of over 500,000 existing NFTs to a more scalable public blockchain like Solana.
- Built a custom marketplace with advanced features like bulk trading, collection offers, and detailed analytics.
- Developed a smart contract architecture that minimized on-chain operations to keep costs extremely low.
- Integrated a user-friendly wallet solution, allowing gamers to easily manage their assets without deep technical knowledge.
Our Public Blockchain Technology Stack & Tools
We are fluent in the languages and platforms of decentralization. We select the optimal stack for your project's specific needs for scalability, security, and performance.
Public Blockchains
Languages
Frameworks & Tools
Cloud & DevOps
Our Agile & Secure Development Process
We follow a structured, transparent, and security-first methodology to transform your concept into a production-ready public blockchain solution.
Discovery & Strategy
We dive deep into your business goals, technical requirements, and target audience to define a clear project roadmap, select the right blockchain platform, and design your tokenomics model.
Architecture & UX/UI Design
We design a scalable and secure system architecture for both on-chain and off-chain components. Simultaneously, our UX/UI team creates intuitive interfaces for your dApp to ensure user adoption.
Smart Contract Development
Our experts write clean, efficient, and highly optimized smart contracts. We follow a test-driven development (TDD) approach, writing comprehensive unit and integration tests for every function.
dApp & Backend Build
We develop the user-facing decentralized application and any necessary off-chain backend services, ensuring seamless communication with the smart contracts via libraries like Ethers.js or Web3.js.
Rigorous Testing & Security Audit
This is a critical phase. We conduct extensive internal testing and engage third-party auditors to perform a comprehensive security audit of all smart contracts, identifying and mitigating any potential vulnerabilities.
Deployment & Mainnet Launch
After successful audits and testnet deployments, we manage the mainnet launch of your protocol and dApp. We follow a carefully planned deployment script to ensure a smooth and secure rollout.
Post-Launch Support & Maintenance
Our partnership doesn't end at launch. We provide ongoing support, monitoring, and maintenance services to ensure your platform remains secure, operational, and ready for future upgrades.
What Our Clients Say
Our success is measured by the success of our partners. Hear directly from leaders who have trusted us with their critical blockchain initiatives.
"The complexity of our multi-chain strategy was a major hurdle. Errna's team not only understood the vision but executed it flawlessly. Their expertise in cross-chain bridges was the key to unlocking our ecosystem's potential."
"Security was our number one priority, and Errna delivered. Their AI-augmented auditing process caught subtle issues that other firms missed. We went to mainnet with a level of confidence we didn't think was possible."
"We needed to move fast without sacrificing quality. The dedicated POD model was a game-changer. We had a full, high-functioning blockchain team in weeks, operating as a true extension of our own."
"The dApp interface they designed is beautiful and, more importantly, intuitive. Our user adoption rates exceeded projections by 200%, largely because they made a complex DeFi product feel simple and accessible."
"Navigating the regulatory landscape for our token launch was daunting. Errna's consulting team provided the clarity and framework we needed to launch confidently and in full compliance. They are more than just developers."
"The level of professionalism and process maturity at Errna is unmatched. Their CMMI Level 5 practices were evident in every sprint, every report, and every deliverable. It led to a predictable, on-time, and on-budget launch."
Frequently Asked Questions
Clear answers to common questions about public blockchain development.
The best platform depends entirely on your specific needs. Ethereum is the most established with the largest ecosystem, ideal for DeFi and NFTs. Solana offers high throughput and low costs, great for gaming and high-frequency applications. Polygon provides a scalable Layer 2 solution for Ethereum. We conduct a thorough analysis of your project's requirements for speed, cost, security, and decentralization to recommend the optimal blockchain for you.
Our security process is multi-layered and rigorous. It includes: 1) Adherence to best practices like the Checks-Effects-Interactions pattern. 2) Comprehensive unit and integration testing. 3) Use of industry-standard libraries like OpenZeppelin. 4) Automated analysis with tools like Slither. 5) In-depth manual code reviews by our senior blockchain architects. 6) We strongly recommend and facilitate a final audit by a reputable third-party security firm before mainnet deployment.
Costs can vary significantly based on complexity. A simple token and smart contract might start in the range of $25,000-$50,000. A full-featured dApp or NFT marketplace could range from $75,000 to $250,000+. Developing a new Layer 1 or Layer 2 protocol is a major undertaking and can cost upwards of $500,000. We provide a detailed, transparent proposal after our initial discovery phase to give you a clear understanding of the investment required.
A typical timeline for a moderately complex dApp is 3 to 6 months. This includes strategy, design, smart contract development, dApp frontend development, auditing, and deployment. Simpler projects can be faster, while highly complex protocols may take longer. Our agile process focuses on delivering a Minimum Viable Product (MVP) first to get you to market faster, followed by iterative improvements.
Absolutely. This is a core competency. We use blockchain oracles (like Chainlink) and custom-built APIs to create secure, two-way communication between your on-chain smart contracts and your existing off-chain databases, enterprise software, and other systems. This allows you to leverage the benefits of blockchain without replacing your entire infrastructure.
Launch is just the beginning. We offer flexible post-launch support and maintenance plans to ensure your platform runs smoothly. This can include network monitoring, security updates, community support, and development of new features. We aim to be your long-term technology partner, helping you grow and evolve your decentralized ecosystem.
Ready to Build the Future on a Public Blockchain?
Your vision for a decentralized application, a new financial primitive, or a more transparent system deserves expert execution. Let's discuss how our team can turn your idea into a secure, scalable, and successful reality.
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