Andres F.

Experience 1: I harnessed and delved the Rust ecosystem to develop high-performance SDKs and APIs by merging Axum's concurrency capabilities with Diesel's ORM. Axum enabled nonblocking, responsive APIs, while Diesel's strong typing streamlined database interactions. We introduced a custom AppError conversion for codebase stability. Though crafting developer-friendly, robust APIs posed challenges, Axum's asynchronous routing and Diesel's database consistency made concurrent requests efficient. This fusion exceeded performance standards, delivering low-latency responses and reliability. This project significantly increased customer satisfaction, leading to greater company revenue and profitability.

Experience 2: I spearheaded the development of cutting-edge NFT and wallet solutions, with a strong focus on leveraging the capabilities of Flutter. This endeavor embraced agile development practices and included the integration of subdomains on Unstoppable Domains for decentralized experiences. The solutions achieved cross-chain compatibility, incorporating prominent blockchains like BTC and ETH. Throughout the development process, comprehensive iOS testing was conducted to ensure seamless performance. The integration of Figma-based designs played a pivotal role in creating a well-structured architecture, all of which was executed within the Flutter framework. Additionally, robust state management was achieved through the implementation of Flutter-specific technologies like BLoC, ChangeNotifiers, and Providers. These Flutter-based components were essential in ensuring efficient and responsive user experiences.

I played a key role at Virtualness, a Silicon Valley startup, in designing, developing, testing, and implementing the backend infrastructure for a unique e-commerce mobile application. This application allowed users to create custom NFTs and even dabble in implementing 10,000 NFT templates simultaneously.

The architecture I managed included essential components:

- IPFS Element Storage Control – Designed a secure and efficient system for storing and retrieving digital design elements.

- NFT Standard 1155 Smart Contracts: These contracts were the backbone of our NFT ecosystem, enabling the creation, exchange and management of unique digital assets.

- Contract for Element Control Management: I designed and implemented smart contracts to accurately manage all elements within the platform, ensuring a cohesive experience.

- Polygon node network integration: To increase scalability and performance, I integrated our platform with the Polygon node network, improving transaction execution and data handling.

- Mint Transaction Support – Simplified minting transactions, covering address ownership approval and ERC20 transfers between wallets, including cross-chain wallet integration.

- Express Server and Node.js Rest API: Developed an Express Server and Node.js Rest API to ensure a robust and flexible backend infrastructure.

- Cloud-Backed Server-Side Integration: Orchestrated the seamless integration of backend, frontend, and middleware components, each of which operates as distinct server-side entities. This cloud-backed server-side synergy improved overall performance and user experience.

This project was more than a technical task; It represented the convergence of art, technology, and the complexities of blockchain. In my role as Senior Blockchain Backend, I played a critical role in ensuring project success with a strong emphasis on performance and data integrity.