Jonathan Calvin
@jonathancalvin
I'm building scalable backend APIs and distributed services with Java, Go, C#, caching, and asynchronous processing.
IndonesiaWhat I'm looking for
I'm developing customer-facing and internal campaign-management APIs at Blibli, improving responsiveness with Memcached, fan-out/fan-in patterns, and asynchronous execution. I've also built reusable notification dispatching and role-based access-control systems with cached authorization lookups.
At BINUS University, I developed an end-to-end thesis management system for 6,000+ active users and built C# .NET APIs integrated with Salesforce. My CSV-based supervisor approval workflow reduced administrative processing for a 200-student batch from nearly 30 minutes to under one minute.
I've also led technical direction at Apple Developer Academy @ BINUS, delivering SwiftUI and UIKit features while coordinating sprint planning, backlog grooming, and Git workflows. I enjoy designing reliable distributed systems, including event-driven microservices, Saga choreography, transactional outbox patterns, and Kafka-based asynchronous pipelines.
Experience
Work history, roles, and key accomplishments
Backend Software Engineer Intern
Blibli
May 2026 - Present (4 months)
Developed and enhanced Java Spring Boot RESTful APIs for customer-facing features and internal campaign management workflows. Optimized backend performance using Memcached caching, fan-out/fan-in, and asynchronous execution, and designed a reusable notification dispatcher with retry and non-blocking execution.
Education
Degrees, certifications, and relevant coursework
Bina Nusantara University
Bachelor's degree, Computer Science
2022 - 2026
Grade: 3.97/4.00
Pursuing a Bachelor's degree in Computer Science with a GPA of 3.97/4.00, including coursework in algorithms, data structures, database technology, and web programming.
Tech stack
Software and tools used professionally
Availability
Location
IndonesiaAuthorized to work in
Job categories
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