Senior Backend/platform engineer on the engineering team building TrendSpider's trading analytics platform, reporting directly to the CTO. Owned core Node.js/Typescript microservices, AWS Lambda data pipelines, queues, databases, Docker runtimes, and CI/CD, and led technical decisions for major backend/platform capabilities, including authentication, non-market-data integrations, serverless architecture, and scanner/custom scripting.

• Replaced the WordPress-based login with a standalone authentication and user-hydration service in Node.js, enabling independent scaling for thousands of concurrent users.
• Built the backend used in the AI coding assistant, which also powers code generation in Sidekick, TrendSpider's AI agent. Traders describe an indicator, strategy or trading bot in plain English, the system concerts to code and it in a sandbox and lets them backtest it on historical data.
• Owned third-party integrations and data pipelines for Federal Reserve data, FINRA, 13F filings, and WallStreetBets/Reddit content, used across charts, scanners and watchlists.
• Built backend features for the market scanner and custom JavaScript scripting, such as custom indicators, data comparison and backtesting, running scans across thousands of tickers on demand.
• Led Node.js/Typescript modernization on every backend service, 10+ microservices on Kubernetes plus the Lambda functions, handling native C++ module compatibility, breaking changes and a security review for each major version since v10.

Technical lead for an OTC trading platform serving Brazil's energy market, supporting contracts worth hundreds of thousands of BRL. Responsible for backend and database architecture, with security, reliability, and scalability central to the platform's design and delivery. ENbox was an OTC trading desk for Brazil's free electricity market and an important platform since we were 1 of the 2 platforms in the market that provide this service.

• Hired and led the engineering team, and was responsible for the platform's security and reliability.
• Designed and built the platform end to end, from the PostgreSQL data model to the frontend: real-time buy and sell orders, per-counterparty energy, credit and delivery-period limits, electronic trade tickets and contract e-signature.
• Built real-time negotiation between counterparties over WebSockets and WebRTC, where even small contracts are worth several hundred thousand BRL.

Technical lead for ManageSocial, a social-data platform built to replace the previous platform ManageFlitter software using a modern, more scalable and more maintainable development cycle. Owned backend architecture and large-scale data workflows, using serverless components to support fast access to extensive social-profile datasets and keep them up to date. The hundreds of GB Database was a big challenge, to make that available to all users in a quick and consistent way was one of the biggest selling points of the platform. Keep all that up to date and consistent required a system that checks and update every data at a fast pace.

• Led the rebuild of the legacy product as ManageSocial on a serverless architecture that was easier to scale and maintain.
• Managed hundreds of gigabytes of indexed data covering 200M+ Twitter profiles and 40M+ Instagram profiles, maintaining data integrity and query performance.
• Built indexing and data-refresh workflows to keep profile data current and provide fast, consistent access for users.

Co-founder and Node.js developer in charge of build the API systems, the integrations with the e-commerces and the data analysis from those. Acquired by Rede Pay, a Brazilian payments company, in 2017.

• Co-founded Zimp, a company focused on providing API systems and integrations for e-commerce platforms.
• Built a crawler that pulled the full catalog and prices from partner online stores, 10M+ SKUs in about 4 hours, so members could spend their points on any partner product.
• Implemented data analysis to extract insights from industry data, improving business decision-making.
• Built the Node.js API, the integrations with partner and the analytics on their sales data.

At Extraball I had the opportunity to work with Big Players in the Brazilian e-commerce creating a very wide experience in the area. Extraball is a powerful VTEX partner, one of the largest e-commerce platforms in Brazil.

• Worked with major Brazilian e-commerce companies, gaining extensive experience in the industry.