Rafael Serino Kiss
@rafaelserinokiss
I build highly available backend microservices powering large-scale e-commerce platforms.
BrazilWhat I'm looking for
At Mercado Livre, I develop backend services for the Shopping Cart platform handling more than 1 million requests per minute. I led the migration of the core getCart endpoint to a dedicated backend, cutting latency and improving scalability, and shipped purchase-flow changes that increased Shopping Cart GMV by 4%.
I've built scalable Java and Spring Boot services, REST APIs, and AWS microservices at Alelo Brasil, progressing from intern to pleno engineer. Earlier, I built ASP.NET MVC applications and Python process automations at Berger Information Technology, bringing hands-on experience with production monitoring, testing, SQL, and message-driven architectures.
Experience
Work history, roles, and key accomplishments
Software Engineer
Mercado Livre
Jan 2024 - Present (2 years 7 months)
Develops highly available backend services for the Shopping Cart platform, handling 1M+ requests/minute. Led migration of the core getCart endpoint to a dedicated backend, improving scalability and cutting latency.
Software Engineer
Alelo Brasil
Jan 2021 - Dec 2024 (3 years 11 months)
Built scalable Java/Spring Boot backends, REST APIs, and microservices on AWS. Designed services focused on performance, maintainability, and scalability; deployed production code end to end.
Fullstack Developer
Berger Information Technology
Jan 2020 - Dec 2021 (1 year 11 months)
Built web applications with ASP.NET MVC, C#, and JavaScript. Automated internal processes with Python and Selenium; worked with SQL Server and Azure.
Education
Degrees, certifications, and relevant coursework
FIAP
Pós-graduação Lato Sensu, Java Architecture & Development
2025 -
Pursuing a postgraduate degree in Java Architecture and Development, expected to complete in March 2026.
Impacta Tecnologia
Bachelor, Information Technology
2020 - 2023
Earned a Bachelor's degree in Information Technology, covering software development, databases, and IT fundamentals.
Tech stack
Software and tools used professionally
Availability
Location
BrazilAuthorized to work in
Job categories
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