sebasneuron

Hedgecast.fun is a Web3 platform that lets anyone create a crypto token and pair it with an autonomous AI agent that promotes it on social media (specifically X/Twitter) — all without coding or technical skills.

- Led the design and development of AI-native software platforms combining advanced machine learning systems with scalable full-stack architectures. Built production-grade applications that integrated large language models, intelligent automation pipelines, and data-driven web platforms used for enterprise analytics, marketing operations, and AI-assisted decision systems. Contributed across the entire engineering lifecycle—from system architecture and AI pipeline design to cloud deployment and performance optimization—within fast-moving product environments. - Architected and delivered modern web applications using React, Next.js, Node.js, Python, and TypeScript, building highly modular backend services and microservice architectures capable of supporting high-volume real-time applications. Designed secure RESTful and event-driven APIs powering dashboards, internal operational platforms, and SaaS products. - Developed AI-driven capabilities by integrating large language models through OpenAI APIs and advanced LLM frameworks such as LangChain. Engineered intelligent workflows including document understanding systems, AI-assisted analytics, automated content generation, and contextual recommendation engines. Implemented advanced Retrieval-Augmented Generation pipelines with vector search infrastructure such as Pinecone, enabling semantic search, knowledge retrieval, and context-aware AI responses across enterprise datasets. - Built autonomous AI agents capable of orchestrating multi-step workflows including marketing automation, data summarization, campaign optimization, and operational intelligence. Designed scalable AI pipelines that combined prompt engineering, structured retrieval systems, and model orchestration to deliver accurate and reliable outputs in production environments. - Designed backend data systems using PostgreSQL and MongoDB, implementing optimized data schemas, indexing strategies, and caching layers to support high-performance query execution and real-time analytics workloads. - Deployed distributed applications on Amazon Web Services infrastructure using containerized services powered by Docker and orchestrated with Kubernetes, ensuring resilient, scalable production systems. Implemented CI/CD pipelines, infrastructure automation, and monitoring strategies to maintain system reliability and accelerate deployment cycles. - Developed interactive, data-rich dashboards and internal operational platforms enabling real-time campaign tracking, audience analytics, and performance insights. Optimized frontend performance, accessibility, and responsive design to support cross-platform web applications and mobile-friendly interfaces. - Worked closely with founders, product leaders, and cross-functional teams in startup environments to translate complex business requirements into scalable technical solutions. Rapidly prototyped AI-powered features, iterated on production systems, and leveraged modern AI engineering tools such as ChatGPT and Claude to accelerate development workflows, debugging, and code optimization. - Delivered high-impact AI-driven products by combining full-stack engineering expertise with applied artificial intelligence, enabling organizations to transform traditional software platforms into intelligent, automated, and data-centric systems.

- Architect and develop high-performance blockchain infrastructure supporting enterprise fintech systems, decentralized applications, and digital asset platforms processing large volumes of on-chain transactions. - Design and deploy secure smart contracts using Solidity across Ethereum and other EVM-compatible networks, implementing staking mechanisms, escrow systems, token issuance, and automated financial workflows. - Developed decentralized applications and smart contracts on Solana using Rust and Anchor, enabling high-throughput transaction processing and scalable Web3 marketplace functionality. - Built backend blockchain services using Node.js and TypeScript to manage blockchain transactions, event indexing, and smart contract integrations through secure RESTful APIs. - Integrated dApps with blockchain networks using Web3.js, Ethers.js, and Solana Web3.js, enabling wallet authentication, token transfers, and real-time on-chain event monitoring. - Implemented token standards including ERC‑20 and ERC‑721, supporting DeFi integrations, NFT marketplaces, and digital asset management systems. - Designed high-performance blockchain indexing pipelines and event-processing services to support real-time analytics, transaction monitoring, and blockchain data services. - Architected microservices-based systems to support high-volume blockchain transaction processing and enterprise integrations with external platforms. - Deployed and managed blockchain-enabled services using containerized infrastructure with Docker and orchestrated workloads using Kubernetes in cloud environments including Amazon Web Services. - Conducted smart contract security reviews, gas optimization, and performance tuning to ensure secure and efficient decentralized systems. - Collaborated with cross-functional teams including DevOps, product, and security engineers to deliver scalable blockchain platforms and enterprise Web3 solutions. - Mentor developers on blockchain architecture, distributed systems design, and best practices for secure smart contract development.

- Contributed the white-label subscription-management and bill negotiation SaaS platform used by banks, fintechs, and credit unions to help customers take control of recurring spending and reduce subscription waste. - Built modern, customer-centric UI components using React 18 for subscription dashboards, self-serve cancellation flows,and bill-insight tools, improving customer activation rates by 18%. - Enhanced secure payment and billing UIs integrating Google Pay, Apple Pay, and Stripe, and leveraged AI/ML-driven insights to optimize checkout flows and detect anomalous payment behaviors. - Built reusable component libraries in TypeScript, ensuring Type-safe UI contracts and facilitating rapid feature delivery across web and mobile web surfaces. - Led migration of key billing and subscription workflows to Next.js using SSR and incremental static regeneration, improving SEO visibility for embedded banking clients and reducing time-to-interactive by 35% across high-traffic user journeys. - Implemented advanced React patterns including custom hooks, memoization strategies, and context isolation to optimize rendering performance in high-traffic billing workflows. - Used Remix v2 to build subscription and billing pages with server-side data loading, improving reliability and reducing client-side complexity by 30% during high traffic. - Managed frontend state using Zustand and Recoil within the Billing Portal, improving state consistency and reducing frontend defects by 35% across subscription and payment workflows. - Designed and deployed Node.js + FastAPI microservices within a distributed architecture, separating core subscription workflows from analytics and risk evaluation services to improve scalability and service isolation. - Developed and maintained backend services using Nest.js (Node.js) for subscription lifecycle management, billing orchestration, and third-party API integrations. - Built high-performance FastAPI services for financial data aggregation and anomaly detection, enabling asynchronous processing and reducing API response times under peak transaction loads. - Designed RESTful APIs with structured validation, centralized error handling, and JWT-based authentication with RBAC enforcement to meet enterprise-grade security requirements. - Integrated third-party financial and payment APIs (Stripe, banking data providers) with retry logic, timeout handling, and circuit breaker safeguards to improve system resilience during vendor outages. - Implemented Azure SQL Database for secure, high-performance relational data storage, optimizing database queries and reducing response times by 20%. - Participated in infrastructure improvements using Docker, Kubernetes, and CI/CD tooling to support rapid releases with zero downtime for users. - Integrated comprehensive automated E2E testing with Cypress and unit tests with Jest, raising test coverage to 85% and preventing regressions in billing and cancellation pipelines. - Mentored junior engineers on frontend architecture, secure coding practices, and testing strategies, while coordinating tasks and tracking progress through Jira, reducing onboarding time by 25% and improving overall team code quality.

- Led the design and development of a Billing Portal using React 17, Next.js 10, and TypeScript 4.0, implementing server-side rendering and optimized data-fetching strategies that improved initial page load performance by 40% and enhanced search engine indexing. - Architected and delivered a Clinical Portal for healthcare providers using a Vite-based React frontend and backend microservices built with Fastify and FastAPI, supporting secure patient workflows for 5,000+ daily active users while ensuring scalable and highly available system architecture. - Designed and implemented scalable state management solutions using MobX, reducing global state complexity and minimizing state-related defects by 30%. - Implemented authentication and real-time data synchronization using Firebase, enabling secure user identity management and improving application responsiveness. - Developed backend APIs using GraphQL with the FastAPI framework, improving frontend data efficiency and reducing over-fetching by 30%. - Containerized frontend and backend services using Docker, ensuring consistent development, testing, and production deployments across distributed environments.