ArcéNio Carlos Corteis

Designed and deployed an automated multi-channel invoice delivery system, boosting operational efficiency by 30%.
Integrated third-party services and payment gateways, improving overall user experience by 25%.
Built web automation scripts using Python and Playwright, cutting process execution time by 40%.
Deployed serverless functions on AWS Lambda for scalable, event-driven processing.
Handled production maintenance, bug fixing, and code refactoring to ensure system stability.

Developed and maintained internal web products, delivering new features while ensuring performance and stability.
Worked across the full stack with Python, Django, HTMX, Next.js and Docker.
Managed relational databases (MySQL, PostgreSQL), optimizing queries for production workloads.
Note: Position concluded due to company-wide technology department layoff.

Architected and deployed high-performance backend services with Python and FastAPI, improving processing capacity by 50%.
Integrated AI capabilities via Lang Chain — including LLM orchestration, RAG pipelines, and agent workflows — increasing process efficiency by 20%.
Built and maintained robust RESTful APIs powering core business services, with a focus on security and horizontal scalability.
Automated critical business processes, saving 15+ hours of manual work per week across operations teams.

Delivered web applications with React and cross-platform mobile apps with React Native, achieving a 90% client satisfaction rate.
Designed and built RESTful APIs using Django REST Framework, facilitating seamless system integrations.
Contributed to 3+ years of continuous product development in Scrum-based agile environments.
Managed source code, branching strategies, and code reviews via Git/GitHub, enforcing development best practices.