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I'm a Senior Backend Engineer with 15+ years of experience building scalable Java and distributed systems across banking, telecom, insurance, and public sector domains. I specialize in designing cloud-native architectures, microservices, and high-throughput backend services that scale under heavy transactional loads. I enjoy mentoring engineers, driving technical decisions between monoliths and microservices, and delivering mission-critical platforms with strong observability and security. In my spare time I explore new tech stacks, contribute to open architectures, and collaborate with cross-functional teams to solve complex problems and optimize system performance.…I'm a Senior Backend Engineer with 15+ years of experience building scalable Java and distributed systems across banking, telecom, insurance, and public sector domains. I specialize in designing cloud-native architectures, microservices, and high-throughput backend services that scale under heavy transactional loads. I enjoy mentoring engineers, driving technical decisions between monoliths and microservices, and delivering mission-critical platforms with strong observability and security. In my spare time I explore new tech stacks, contribute to open architectures, and collaborate with cross-functional teams to solve complex problems and optimize system performance.

Selda Güner

Back-End Developer, Full Stack Developer, Web Developer

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I'm a Senior Backend Engineer with 15+ years of experience building scalable Java and distributed systems across banking, telecom, insurance, and public sector domains. I specialize in designing cloud-native architectures, microservices, and high-throughput backend services that scale under heavy transactional loads. I enjoy mentoring engineers, driving technical decisions between monoliths and microservices, and delivering mission-critical platforms with strong observability and security. In my spare time I explore new tech stacks, contribute to open architectures, and collaborate with cross-functional teams to solve complex problems and optimize system performance.…I'm a Senior Backend Engineer with 15+ years of experience building scalable Java and distributed systems across banking, telecom, insurance, and public sector domains. I specialize in designing cloud-native architectures, microservices, and high-throughput backend services that scale under heavy transactional loads. I enjoy mentoring engineers, driving technical decisions between monoliths and microservices, and delivering mission-critical platforms with strong observability and security. In my spare time I explore new tech stacks, contribute to open architectures, and collaborate with cross-functional teams to solve complex problems and optimize system performance.

Available to hire

I’m a Senior Backend Engineer with 15+ years of experience building scalable Java and distributed systems across banking, telecom, insurance, and public sector domains. I specialize in designing cloud-native architectures, microservices, and high-throughput backend services that scale under heavy transactional loads. I enjoy mentoring engineers, driving technical decisions between monoliths and microservices, and delivering mission-critical platforms with strong observability and security.
In my spare time I explore new tech stacks, contribute to open architectures, and collaborate with cross-functional teams to solve complex problems and optimize system performance.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Turkish

Fluent

English

Advanced

German

Intermediate

Work Experience

Senior Java Software Developer at General Directorate of Forestry (National ERP Platform)

January 1, 2025 - December 1, 2025

Led backend development for ERP modules supporting forestry operations. Designed scalable RESTful APIs and enterprise workflows. Optimized Oracle PL/SQL queries and database performance for reporting systems. Conducted database architecture analysis for Oracle to PostgreSQL migration, ensuring schema compatibility and data integrity. Built operational reporting solutions using JasperReports. Guided engineers in system design decisions between monolithic and microservices architectures.

Technical Lead / Backend Architect at Mentors

January 1, 2024 - August 1, 2024

Led technical mentoring program for junior and mid-level engineers focusing on backend architecture and system design. Designed and developed crypto wallet prototypes using React.js, Node.js, Spring Boot. Architected and deployed production-grade REST APIs using Spring Boot and JPA with deployment.

Senior Software Developer – Team Lead at Eureka Sigorta

August 1, 2022 - July 1, 2023

Designed and delivered 60+ production-grade REST APIs enabling secure bank-to-insurance integrations. Architected backend services using Spring Boot with distributed microservices architecture. Managed full API lifecycle via WSO2 API Manager; implemented monitoring via Grafana, Prometheus, ELK; led security, authorization using JWT and Keycloak. Implemented monitoring and observability stack; Provided technical leadership.

Senior Backend Engineer / Integration Engineer at Nokia

August 1, 2016 - July 1, 2022

Designed and maintained Java-based backend services for Service Management Platform supporting 100+ telecom services. Contributed to modernization initiatives transforming legacy systems into microservices-oriented architecture. Developed high-concurrency middleware applications for large-scale Vodafone systems. Implemented secure identity management with Keycloak; led IPv4/IPv6 dual-stack migrations; advised clients on backend architecture and performance optimization.

Multichannel Architecture Application Developer at AKBANK

September 1, 2013 - May 1, 2016

Designed SOA-based enterprise integrations using Tibco BusinessWorks and Tibco EMS. Integrated CIS mainframe with Oracle DB; REST/SOAP services, messaging; built secure governance identity verification services. Managed backend architecture.

Software Developer Specialist at TuTech Innovation GmbH

January 1, 2005 - December 31, 2006

Developed distributed SOA applications using Java and Spring Framework.

Information Technologies Assistant (Intern) at Airbus Deutschland GmbH

September 1, 2003 - September 1, 2005

Assisted in IT projects and internship; gained experience in enterprise IT.