astravex

Enhanced Rust and Go microservices with lock-free concurrency and zero-cost abstractions to enable ultra-low-latency transactions in decentralized trading platforms. Engineered, audited, and optimized Solidity and Rust smart contracts for EVM and WASM-based blockchains, incorporating gas optimization, reentrancy protection, and secure upgradeability patterns. Created scalable, event-driven system architectures integrating on-chain data, off-chain services, and real-time messaging (Kafka/WebSockets). Led technical decision-making on distributed systems, consensus integration, and cross-chain interoperability solutions. Enhanced data pipelines to improve accuracy, and performance in blockchain analytics, market data processing, and decentralized protocol interactions. Built user interfaces with React, Next.js, TypeScript, and Tailwind CSS, wiring wallet providers, Ethers.js/Wagmi-based Web3 APIs, and protocol SDKs into cohesive full‑stack dApp ecosystems. Built cloud-native infrastructure (Docker, Kubernetes, AWS Lambda, and other AWS services) with CI/CD pipelines to ensure high availability, fault tolerance, and horizontal scalability of Web3 services.

Developed a high-performance NFT marketplace platform with SSR using Next.js and Angular modules, supporting minting, trading, and auctions across multiple EVM chains. Built modular Node.js and FastAPI backend services for blockchain indexing, metadata management, and marketplace operations, adhering to microservice principles. Audited and deployed Solidity and Rust smart contracts for ERC-721/1155 tokens, marketplace logic, royalties, and escrow. Designed and implemented robust frontends using React and Angular with state management (Redux/Context), dynamic routing, and real-time blockchain event handling (Ethers.js/Wagmi). Used decentralized storage (IPFS, Arweave) and cloud-native infrastructure (AWS EC2, S3, RDS) for metadata and asset reliability. Delivered admin dashboards, activity feeds, and real-time sales analytics using WebSockets, The Graph, and custom metrics APIs. Deployed infrastructure with Docker, Kubernetes, AWS S3, and CI/CD pipelines to ensure scalability and high availability of marketplace services.

Developed and deployed Rust-based smart contracts on Solana and NEAR, enabling tokenized in-game assets and programmable game mechanics with secure state transitions and upgradeable contract patterns. Architected and built on-chain asset management systems handling NFT minting, staking, and player inventory with optimized gas usage and low transaction latency. Developed modular backend APIs with Node.js and Python (FastAPI), optimizing communication between game logic, smart contracts, and player inventory. Showcased improved contract execution efficiency by optimizing data serialization and minimizing compute footprint, reducing on-chain transaction costs by up to 30%. Contributed to implementing cross-chain interoperability features and researched Layer-2 scaling (Roll ups, State Channels) to enhance game scalability and reduce latency.

Delivered scalable analytics dashboards using React/Next.js, TypeScript, Node.js, and NestJS, applying a modular and service‑oriented architecture to support large datasets and interactive visualizations. Orchestrated data pipelines and real-time streaming to process telemetry and user engagement data, enabling high-frequency dashboard updates and low-latency chart rendering. Optimized database structures and caching strategies using Redis and materialized views for rapid query responses on large time‑series datasets. Performed and verified unit/integration testing (Jest, Cypress) to ensure reliable checkout, payment, and fulfillment processes. Worked closely with UX/UI teams to deliver responsive, accessible, and conversion-optimized storefronts.

Assisted in building responsive and accessible user interfaces using React, TypeScript, and Next.js, ensuring cross-browser compatibility and adherence to WCAG standards. Managed state using Redux and Context API, optimizing rendering and data flow for complex, dynamic UIs. Helped integration of Stripe payment APIs into frontend features, enabling secure checkout workflows, tokenized payment methods, and real-time transaction status updates while adhering to established API contracts and compliance requirements. Optimized frontend performance through code-splitting, lazy loading, caching strategies, and Lighthouse audits. Improved responsive layouts and UI elements using modern styling approaches, including Tailwind CSS, Styled Components, and CSS-in-JS, ensuring consistency with brand guidelines.