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Serhat PAMUK

@serhatpamuk

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Backend Engineer building production-ready microservices and event-driven systems with Java, SQL, and Kafka.

Turkey

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What I'm looking for

I’m looking for a Backend Engineer role where I can build production-ready REST APIs and event-driven microservices, work in Agile/Scrum teams, and keep improving reliability through testing, CI/CD, and observability.

I’m a Software Engineering graduate and Backend Engineer who builds production-ready RESTful APIs, microservices, and event-driven systems using Java and SQL. In my roles, I’ve implemented LDAP-integrated JWT authentication with RBAC authorization and delivered services containerized with Docker and automated through CI/CD.

At EPİAŞ and other teams, I developed Kafka-driven IoT billing workflows with Redis caching, ran performance benchmarks across Redis and Hazelcast, and evaluated distributed locking behavior with Prometheus and Grafana. I also built REST APIs and order-processing services with Spring, JPA/Hibernate, MyBatis, and Swagger/OpenAPI, achieving 75–80% test coverage. More recently, I worked as a Prompt Engineer and Software Development Manager for AI code evaluation, improving prompt and output quality through structured feedback.

Experience

Work history, roles, and key accomplishments

Backend Engineer

Energy Exchange Istanbul (EPİAŞ)

Feb 2026 - Jun 2026 (4 months)

Designed and implemented an LDAP-integrated JWT authentication with RBAC authorization in a Spring Boot/Spring Security environment for 500+ users. Developed a QR/NFC digital business card microservices platform and an event-driven Kafka system for IoT electricity billing, including Redis caching and distributed systems benchmarking.

DevOps & Tools Intern Backend Engineer

Huawei

Jun 2025 - Sep 2025 (3 months)

Developed a Football Archive REST API with 17 endpoints, including dynamic SQL queries via MyBatis XML mappers and a transfer-fee calculation engine based on a sequential modifier pipeline. Implemented a product order system with JPA/Hibernate and layered SOLID architecture, using validation, global exception handling, Swagger/OpenAPI documentation, and JUnit/Mockito tests, alongside Docker/CI-CD

REST APIs Sequential Modifier Pipeline JPA Hibernate Many to One SOLID Clean Code Global Exception Handling OpenAPI Docker SonarQube Prometheus Grafana Junit Mockito MySQL PostgreSQL MongoDB

Prompt Engineer

Outlier AI

Oct 2024 - Feb 2025 (4 months)

Created prompts for AI models to support software development tasks and executed generated code locally. Evaluated outputs for functionality and correctness, categorized error types, and delivered structured feedback reports to improve model performance and code generation quality.

Prompt Engineering AI Code Evaluation Error Taxonomy Structured Feedback