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Lucas Penha

@lucaspenha

Senior Software Developer at Letsbook who contributed to a booking-engine microservices migration that cut infrastructure costs by 40%.

Brazil

Message

At Letsbook, I contributed to migrating the flagship booking engine to a microservices architecture, helping reduce infrastructure costs by 40% and improve API response times.

I designed and implemented APIs for payments, notifications, and transaction processing, applying DDD and SOLID principles to the hospitality e-commerce platform.

Previously at Lundi, I built greenfield products and an electronic invoice management system, and architected the AWS environment and CI/CD pipelines.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Developer

Current

Letsbook

Aug 2022 - Present (4 years 2 months)

Contributed to the strategic migration of the flagship booking engine to a microservices architecture, reducing infrastructure costs by 40% and improving API response times. Designed and implemented high-traffic APIs for payments, notifications, and transaction processing using DDD and SOLID principles.

.NET 6 C#Blazor SQL Server AWS RDS EC2 Amazon SQS SNS Docker Microservices DDD SOLID

Software Developer

Lundi

Feb 2013 - Jul 2022 (9 years 5 months)

Developed multiple greenfield projects from scratch, expanding the company's product portfolio and increasing annual revenue. Built a centralized electronic invoice (NF-e) management system and designed a logistics portal with an Android app for real-time driver monitoring.