Hi, I'm Yan Ajiki
I'm a software engineer from Brazil who enjoys building backend systems and solving real-world problems. I mostly work with Java and Spring Boot, but I'm always exploring new tools and ideas.
Born in 1998, I moved to Japan when I was 3 years old. Came back to Brazil when I was 10 and have been living here ever since.
I graduated in Software Engineering at UFMS (Universidade Federal de Mato Grosso do Sul) in 2022 and started playing Okinawa Taiko with the group Kariyushi Eisa Daiko in 2023.
My dream is to live a calm life in Japan and be able to provide for my family.
What I Work With
Backend & APIs
Java, Spring Boot, REST APIs, authentication, background jobs, integrations with external services, unit tests, integration tests, and end-to-end tests.
Frontend
React and Next.js, focusing on clean UI, component-based design, and consuming backend APIs.
Data & Infrastructure
PostgreSQL, MongoDB, Redis, Kafka, database migrations, Docker, Azure, AWS and Observability.
Business Domains
Experience across product management platforms, insurance systems, payment processing, retail solutions, and legacy system modernization.
Beyond Code
I know that there are better setups, but I'm proud of my space and achievements.
I play Okinawa Taiko with the group Kariyushi Eisa Daiko . This is currently my favorite hobby and I met my girlfriend there.
Also been playing beach tennis with friends and family every Friday night.
Curious about what I've been building recently?