İlyas Ziyaoğlu
Senior Software Engineer
I am a Senior Software Engineer with over 5 years of experience in designing scalable microservices, leading high-traffic systems, and improving code quality through advanced architectural principles. Adept at improving software quality, reducing technical debt, and mentoring junior engineers. Throughout my career, I improved myself first with my education and then with my professional experience, various trainings and individual projects. Moreover, in terms of research, self-motivation, entrepreneurship and acquiring different skills. I want to state that I am very dedicated and enthusiastic about being effective and fast in business life and want to take responsibility for the position interestedly. I am aware that working with enthusiasm, diligence and care will definitely result in success. Therefore, I do not doubt I can contribute to you with my skills and work discipline.
EDUCATION
Computer Engineer
Kocaeli University
09/2015 - 07/2019
Kocaeli / Turkiye
English Preparatory
Kocaeli University
09/2014 - 07/2015
Kocaeli / Turkiye
Public Administration
Celal Bayar University
09/2013 - 04/2014
Manisa / Turkiye
High School
Physics, Mathematics and Informatics High School
09/2009 - 06/2013
Baku / Azerbaijan
LANGUAGES
English
Full Professional Proficiency
Turkish
Native
SOFT SKILLS
Team Player
Communication
Responsibility
Proactivity
Time Management
Leadership
Adaptation
TECH STACK
Languages
Java 22
Java Script
Python3
Build Tools
Gradle
Maven
CI/CD
Git
Git Flows
Jenkins
ArgoCD
Libraries
JPA
Hibernate
Lombok
Mapstruct
Feign
Retrofit
Hystrix
Resilience4j
POI
FasterXML
Security
JWT
OAuth2
XSS
SQL Injection
CORS
CSRF
Fraud Detection
DDOS Protection
Tools
Intellij IDEA
Jenkins
ArgoCD
Splunk
Instana
Docker
Kubernetes
Lens
Kafka
Wiremock
Sonar Lint
Sonar Qube
Fortify
JMeter
Postman
Architectures
Monolight
SOA
Micro Services
Frontend
Angular
Vue
Spring
Core
Boot
Security
Data
Integration
Cloud
Cache
Redis
Hazelcast
EhCache
Database
MongoDB
Oracle DB
Postgres SQL
MySQL
Logging / Monitoring
Grafana
Prometheus
Logback
Splunk
Instana
ArgoCD
Lens
Testing / Quality
Junit5
Mockito
AssertJ
JaCoCo
Wiremock
Sonar Lint
Sonar Qube
Fortify
JMeter
Postman
Cluster
Docker
Kubernetes
Lens
ArgoCD
Messaging Queue / Streaming
Kafka
RabbitMQ
Communication
IP
UDP
TCP
HTTP
REST
GraphQL
gRPC
WebSocket
Principles
Agile
SOLID
ACID
Design Patterns
MVC
DDD
TDD
BDD
WORK EXPERIENCE
Founder / Senior Software Engineer
IZ Soft
09/2024 - Present
Istanbul / Turkiye
Projects
-- SESA Data Management: A platform was developed that automatically collects and analyses the marketing activity data of a company conducting e-commerce activities through different accounts through ETL processes. Integrations with Amazon, UPS, FeDex, Seller Flash and Open Currency Exchange were developed.
-- VİVA Media Radio: Enhanced server and client software for a Turkey-wide system that broadcasts and plan radio and audio advertisements over the Internet.
-- Customer Relations, System Design, Software Architecture, Planning, Development, Code Review, Unit Test, Bug Fix
Senior Java Engineer
Vodafone
04/2023 - 09/2024
Istanbul / Turkiye
Achievements / Tasks
-- Contributed the architecture design for microservices that scaled to support 20M+ users
-- Implemented aspect-oriented logging architecture, leading to better separation of concerns and easier debugging of business logic. Leading to 90% reduction in manual logging efforts
-- Developed a context management architecture, providing developers with easy access to user and contextual data, reducing %15 boilerplate code
-- Designed an extensible microservices architecture adhering to SOLID principles and best practices, enabling enhanced maintainability and extensibility
-- Reduced code duplication and management costs by 30% through the creation of reusable libraries
-- System Design, Software Architecture, Planning, Development, Code Review, Unit Test, Bug Fix
Middle Java Engineer
Vodafone
10/2021 - 04/2023
Istanbul / Turkiye
Achievements / Tasks
-- Developed intricate features like gamification, game engine, benefit gifting, preference-based/AI-powered special offers and loyalty points systems
-- Improved development team efficiency by implementing CI standards and streamlined transformation mechanisms
-- Established project-specific code review checklist, ensuring consistent code quality and reducing review %20 of turnaround time
-- Software Architecture, Planning, Development, Code Review, Unit Test, Bug Fix
Java Engineer
Turkcell
08/2019 - 10/2021
Istanbul / Turkiye
Achievements / Tasks
-- Planning
-- Development
-- Code Review
-- Unit Test
-- Bug Fix
Intern
Siemens
06/2018 - 08/2018
Istanbul / Turkiye
Projects
-- Developed Bid Data Management and Evaluation System. The system reduces bid evaluation time from hours to seconds for purchasing managers
-- Developed calculation and reporting system of cable standard and length required by circuit elements in electricity projects such as tunnel and railway. The system reduces reporting time from hours to seconds for electrical engineers
ORGANIZATIONS
DATUB
Active member (2018 - Present)
Kocaeli Ahıska Youth
Founder (2015 - 2019)
Kocaeli University Computer Club
Active member (2016 - 2018)
Google Developer Group Kocaeli
Active member (2016 - 2017)
Kocaeli University Underwater Club
Single star diver training (2015 - 2016)
IEEE Computer Society
Active member (2015 - 2018)