Emirhan Lekesiztaş

Senior Java Software Engineer

Istanbul, Türkiye

About

Java Software Engineer with 5+ years of experience designing, developing, and operating distributed microservice systems in production environments. Currently contributing to a large-scale energy trading platform consisting of 35+ microservices supporting business-critical operations across European energy markets. Experienced in building scalable backend solutions within highly regulated industries, including energy trading and insurance. My expertise includes Java (11/17), Spring Boot, Spring Cloud, Apache Kafka, RabbitMQ, Keycloak, Kubernetes, ELK Stack, and modern CI/CD practices. I have hands-on experience with distributed systems, event-driven architectures, performance optimization, production support, observability, and release management. I actively participate in architectural discussions, code reviews, incident resolution, and system design initiatives, with a strong focus on reliability, scalability, maintainability, and engineering excellence. 🔹 Areas of Interest • Distributed Systems • Microservices Architecture • Domain-Driven Design (DDD) • Event-Driven Architectures • Cloud-Native Applications • Software Architecture • Backend AI Integrations 🔹 Core Technologies Java • Spring Boot • Spring Cloud • Kafka • RabbitMQ • Keycloak • Kubernetes • Docker • Jenkins • ELK Stack • PostgreSQL • Angular Always interested in solving complex engineering challenges and building resilient, scalable software systems that deliver real business value.

Experience

  • Senior Java Software Engineer at Mirsis Bilgi Teknolojileri
    Jul 2026 - Present · 1 mo

    Working as part of the outsourced development team on Akbank's legacy banking system modernization project.

  • Java Software Engineer at Scalefocus
    Jul 2024 - Jul 2026 · 2 yrs 1 mo

  • Java Software Engineer at Sapiens
    Aug 2021 - Jul 2024 · 3 yrs

  • Junior Java Software Engineer at Platomed Information Technology and Media Services
    Feb 2021 - Aug 2021 · 7 mos

  • Full Stack Developer Intern at StdioSoft
    Jul 2020 - Oct 2020 · 4 mos