Senior Software Engineer and hands-on Tech Lead based in Videira, Santa Catarina, Brazil. Backend architecture, distributed systems, AWS, data platforms, and applied AI.
adroaldo@outlook.com · LinkedIn · GitHub
Experience
Somos Educação / Cogna · Senior Backend Engineer / Tech Lead
January 2021–present
Hands-on technical leadership for assessment and reporting squads on platforms supporting 3M+ students. Architecture, APIs, asynchronous processing, production reliability, mentoring, and collaboration with product, data, frontend, and DevOps.
Meritt · Backend Engineer / Team Leader
August 2020–present
Node.js, TypeScript, NestJS, PostgreSQL, AWS, Redis/Bull, Firebase, tests, and CI/CD. Listed concurrently with Cogna in my professional profile.
Independent Software Engineer
January–August 2020
End-to-end web solutions, architecture, delivery, deployment, and maintenance.
Decode21 · Systems Integration Consultant
August 2018–January 2020
Data and process integration across manufacturing, logistics, and operational systems.
Doppler Sistemas · Founder & Technical Lead
2012–July 2018
Founded and led an industrial ERP company: finance, accounting, inventory, cost, production, logistics, integrations, and client delivery.
Senmax · Software Engineer
January 2010–November 2011
Industrial ERP with Java and Oracle, manufacturing cost calculations, integrations, and reporting.
VisionMed · Software Developer
January 2009–January 2010
PACS, DICOM, medical imaging, and telemedicine. Java/PostgreSQL backend and PHP/JavaScript frontend.
Core technologies
Node.js, TypeScript, NestJS, REST and GraphQL APIs, AWS SQS/S3/Cognito/ECS/EKS, PostgreSQL, ClickHouse, Redis, RabbitMQ, Firebase, containers, and CI/CD.
Education and languages
B.Sc. in Computer Science, UNOESC, 2007–2011. Postgraduate degree in Web, Cloud, and Mobile Development, UNOESC, 2015–2017. Portuguese: native. English: full professional proficiency.