İsa Oğuz

Open to new opportunities

Software Developer · Istanbul, Turkiye

Buildingreliablesoftwareapplications.

End-to-end delivery. Clean architecture. Reliable software. Results-driven Software Developer with over 3.5 years of experience designing and building scalable, high-performance ap…

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3.5+

Years Experience

10+

E-commerce Brands

3.21

GPA (Bachelor's)

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About

Backend engineering with precision

Clean architecture, maintainable code, and systems built to scale under real enterprise load.

Results-driven Software Developer with over 3.5 years of experience designing and building scalable, high-performance applications for enterprise and e-commerce.

Skilled across the full development lifecycle — from APIs and integrations to production-ready systems using Java 17/21, Spring Boot, and modern architectures. Passionate about clean code (SOLID), maintainable solutions, and shipping software that works at scale.

Core strengths
  • Microservices & modular monolith architecture
  • SAP Commerce (Hybris) & Spartacus integrations
  • Payment gateways & REST/SOAP APIs
  • Kafka, Redis, Elasticsearch & Flowable

3.5+

Years Experience

Education

Kocaeli University

Bachelor's in Information Systems Engineering

Jul 2020 — Jul 2024 · Kocaeli, Turkiye

GPA: 3.21

Education

Bagcilar Edip Iplik Vocational and Technical Anatolian High School

High School Graduate

Sep 2014 — Jun 2018 · Istanbul, Turkiye

Languages
  • TurkishNative
  • EnglishIntermediate (B1)
Technical Skills

Stack I work with daily

Java ecosystem, distributed systems, e-commerce platforms, and production-grade observability.

Backend

Java 17 / 21

95proficiency
Backend

Spring Boot

95proficiency
Backend

Spring Framework

92proficiency
Backend

Microservices

90proficiency
Database & Cache

PostgreSQL

88proficiency
Messaging & DevOps

Kafka

88proficiency
Backend
REST & SOAP APIsClean ArchitectureSAP Commerce (Hybris)C# / .NET
Database & Cache
MSSQL / MySQLMongoDBRedisElasticsearch
Messaging & DevOps
DockerGitFlowable
Frontend
React75%
TypeScript82%
Tailwind CSS85%
Monitoring & QA
Dynatrace82%
Grafana / Kibana85%
Unit Testing88%
Agile / Scrum90%
Selected Work

Enterprise projects I've shipped

E-commerce platforms, OMS systems, and backend integrations for leading Turkish brands.

2026

Order Management System (OMS)

Modular monolith OMS application built with Java 21 and Spring Boot. Implemented Kafka Outbox/Inbox patterns, Redis caching, Flowable workflows, Elasticsearch search, and Grafana-based observability.

Java 21Spring BootKafkaRedisFlowable
2024 — 2026

Vakko · Vakkorama · Wcollection

Developed and launched SAP Commerce (Hybris) and Spartacus-based e-commerce platforms from scratch. Implemented payment integrations and custom backend services using Java 17 and Spring Boot.

Java 17Spring BootSAP HybrisSpartacusPayments
2023 — 2024

Penti E-Commerce Platform

Backend services and integrations for a leading retail brand using Java, Spring Boot, and SAP Commerce (Hybris). Delivered RESTful and SOAP-based integrations with external systems.

JavaSpring BootSAP HybrisRESTSOAP
2026

Greyder · Borusan · IDO

Java 17/21 backend services, REST APIs, and SOAP integrations for SAP Commerce projects. Provided technical support, troubleshooting, and production performance improvements.

Java 21Spring BootSAP CommerceRESTSOAP
2023 — Present

B2B & B2C E-Commerce Platforms

Contributed to Turkey's leading B2B and B2C e-commerce platforms at Haratres Teknoloji, strengthening system reliability through clean, maintainable backend code and Agile delivery.

MicroservicesSpringE-CommerceAgile
2022

Hotel Mobile Applications

Contributed to development and go-live of hotel mobile applications during internship at Gonca Group, focusing on frontend development and API integrations.

MobileAPI IntegrationReact
Experience

Professional journey

From internships to enterprise e-commerce — building reliable backend systems at scale.

Jan 2023 — Present

Current

Java Backend Developer

Haratres Teknoloji · Istanbul, Turkey

Contributed to Turkey's leading B2B and B2C e-commerce platforms. Acted as technical consultant, managing customer communications and crisis situations in fast-paced environments.

  • Penti (2023–2024): Backend services with Java, Spring Boot, and SAP Commerce (Hybris); REST & SOAP integrations
  • Vakko / Vakkorama / Wcollection (2024–2026): Launched Hybris & Spartacus e-commerce platforms; payment integrations
  • Greyder / Borusan / IDO (2026–Present): Java 17/21 services, REST/SOAP APIs, production support
  • OMS (2026–Present): Modular monolith with Java 21, Kafka Outbox/Inbox, Redis, Flowable, Elasticsearch

Sep 2022 — Jul 2023

Computer Laboratory Technician

Kocaeli University · Kocaeli, Turkiye

Supported maintenance, troubleshooting, and technical operations of university computer laboratories.

  • Ensured continuous availability of lab environments for students and academic staff
  • Resolved hardware and software issues across multiple computer labs

Jul 2022 — Sep 2022

Software Developer Intern

Gonca Group Information Technologies · Istanbul, Turkey

Contributed to development and go-live processes of hotel mobile applications.

  • Focused on frontend development and API integrations
  • Supported release and deployment workflows for mobile products

Jul 2018 — Apr 2019

Software Developer Intern

BTA Food & Services · Istanbul, Turkey

Worked on development and enhancement of employee tracking systems.

  • Built features using C# and .NET technologies
  • Improved existing modules for workforce management workflows
Contact

Let's connect

Interested in collaboration or a backend role? Reach out directly — the form below is UI-only.

Emailisa34oguz@gmail.com
Location

Istanbul, Turkiye

Prefer async? Connect on LinkedIn or browse my work on GitHub.