Luiz Arthur Ventura

Co-founded a software consultancy and built a platform for digitizing Brazilian property registration records, extracting structured data and business rules from scanned documents. Currently building Cartório+ to provide subscription registry automation for notary administration.

Leading efforts to restore transparency, control, security, and accountability in interactions between people and companies.

Led engineering for a greenfield Applicant Tracking System used by GI Group Holding across 30+ countries, covering recruiter workflows, candidate experience, and enterprise integrations. Designed a multi-account AWS landing zone and architected a 29-service microservices platform, driving scalability and observability improvements.

Owned foundational architecture for a greenfield ATS, building the initial codebase and AWS infrastructure from zero. Defined service boundaries, event-driven patterns, and CI/CD pipelines that scaled into the 29-service platform.

Led the Rain integration team by owning the roadmap and delivery of how enterprise clients connect to the earned wage access platform. Built an API-based integration channel with AWS API Gateway and mTLS, plus Lambda and webhook callbacks to replace file-based integrations and reduce onboarding friction for larger partners.

Built an end-to-end serverless pipeline to ingest punch-in/out data from enterprise clients for Rain’s advance-calculation engine. Reduced end-to-end processing time from hours to ~5 seconds by using AWS Transfer Family (SFTP), S3 event notifications, SNS with filtered policies, and Lambda transformers in an event-driven workflow.

Worked on backend services for cross-border purchases that enabled Brazilian consumers to buy in BRL while handling real-time FX and settlement. Stabilized and debugged Go-based payment services to production readiness and worked across a GCP-heavy stack including Firestore, Cloud SQL, Pub/Sub, Cloud Functions, and Kubernetes.

Structured data and cloud processes and led migration from local servers and Azure to AWS. Built AWS infrastructure to automatically calculate energy prices.

Built a data pipeline feeding a hydrology runoff model application deployed on AWS. Supported reliable data delivery for downstream modeling workloads.

Developed an investment advisory platform recommending portfolios across major Brazilian brokers and banks. Built AWS microservices and a ReactJS front-end to support the product experience.

Contributed to the Product Innovation department with data analysis using R and Python.

B.S. in Electrical Engineering at Universidade Federal de Juiz de Fora with an emphasis in Power Systems.

Science Without Borders exchange program in Electrical Engineering at Kettering University.

B.S. in Exact Sciences at Universidade Federal de Juiz de Fora.