Open to opportunities

Mladen Krstic

@mladenkrstic

Message

I lead Java platforms, modernize cloud systems, and mentor engineers through delivery.

Serbia

Message

What I'm looking for

I'm open to remote contract or employment roles where I can lead platform technical direction, modernize cloud and distributed systems, deliver hands-on Java solutions, and mentor engineers.

I'm leading technical decisions for a Fortune Global 500 loyalty platform via Toptal, consolidating 60 microservices into 14 domain services and coordinating five engineers through architecture, implementation, and mentoring.

I've planned and delivered Azure-to-AWS migration work using Aurora PostgreSQL, Amazon MSK, and Amazon S3, while standardizing Spring Boot integration testing with Testcontainers across platform services. I also adapted the platform for multi-tenancy and migrated services to Spring Boot 3 and Java 17.

Across Swiss Re iptiQ, Airmeet, Moneyhub Enterprise, and earlier Toptal engagements, I've built Java, Spring Boot, Node.js, and React systems spanning insurance, online conferences, financial notifications, and economic reporting.

Experience

Work history, roles, and key accomplishments

Current

Platform Tech Lead / Senior Software Engineer

Current

Confidential Fortune Global 500 Client (via Toptal)

Aug 2023 - Present (3 years 1 month)

Led platform technical decisions and coordinated five engineers through architecture design, implementation, and mentoring. Consolidated 60 microservices into 14 domain-based services and led Azure-to-AWS migration planning and implementation.