Onur Eren Elibol

Lead Software Developer

Experienced developer with expertise in backend technologies, system architecture, and full-stack development.

Onur Eren Elibol

About Me

In my software journey that began at the age of 14, I have been working professionally in software development for over 20 years. During this time, I have participated in many different projects and had the opportunity to learn many different technologies.

I have worked on a wide range of projects, from e-commerce systems to e-government projects, from high-traffic complex systems to small-scale websites. I have gained experience in team leadership, project management, technical leadership, software architecture, and software development.

I have also had the opportunity to work with large international companies like Cisco, experiencing software development processes in different cultures. I speak English at a conversational level.

Contact Information

Languages

Turkish
English

Hobbies

Chess
Programming
Computer Games
Board Games
Watching Movies

Work Experience

Lead Software Developer

Nov 2022 - Nov 2023
Cisco - Remote

I actively served as the lead developer in the backend development of Cisco's event management application, Webex Events. This application is used in high-traffic events with major clients such as Microsoft and Loreal.

Senior Software Engineer

May 2021 - Nov 2022
Cisco - Remote

I worked as a senior software engineer in the backend development of Cisco's event management application, Webex Events.

Senior Web Developer

Dec 2016 - May 2021
Turksat Uydu Haberleşme Kablo TV ve İşletme A.Ş - Ankara

I was on the turkiye.gov.tr team. I worked actively for the main e-Government portal project of Turkey.

Education

2006 - 2010

Dokuz Eylül Üniversitesi

Computer and Instructional Technologies Teaching
GPA: 3.65 / 4
1995 - 2001

Mersin Ticaret ve Sanayi Odası Anadolu Lisesi

Science
GPA: 4.5 / 5

Skills & Technologies

Programming Languages

Typescript
Javascript
Ruby
PHP

Frameworks

Graphql Yoga
Ruby On Rails
Laravel
Yii
VueJs
ReactJs
React Native
Svelte
SvelteKit
NodeJs
NestJs
NuxtJs
NextJs

Databases

Postgresql
Mysql
MongoDB
Redis
Memcached
Elasticsearch

Other

Selenium
Playwright
Docker
CI/CD
OOP
FP
TDD
BDD
Rest
Soap
GraphQL
Kafka
AWS
Google Cloud
Linux
Stripe

Featured Projects

Webex Events Platform

Cisco May 2021 - Nov 2023

A high-traffic event management platform used by major corporations for virtual and hybrid events.

RubyNode.jsGraphQLAWSKafkaPostgreSQL

E-Government Portal (turkiye.gov.tr)

Turksat Dec 2016 - May 2021

Turkey's main e-government portal providing citizens with access to various government services.

JavaScriptJavaMemcachedElasticsearchPostgreSQL

E-Commerce Platform (epttavm.com)

Ülkem A.Ş. Feb 2015 - Apr 2016

High-traffic service-oriented e-commerce platform with millions of monthly visitors.

JavaScriptPHPMySQLRedisElasticsearch

E-Commerce Projects

Netvent A.Ş. Jun 2013 - Jan 2015

Developed and delivered komponentpazari.com and tuketiyorum.com projects, including all testing and implementation.

JavaScriptPHPMySQLjQueryHTML/CSS

Key Achievements

Cisco

  • Developed a Kafka-based event bus system for microservice architecture.
  • Led the implementation of the Onsite project from scratch in just 4 months, which included features for participant registration, badge printing, and event space management.
  • Designed and developed the file management system.
  • Received two promotions within 18 months to reach the lead developer position.
  • Performed numerous refactoring operations, bug fixes, and feature developments throughout the system.
  • Optimized slow queries to improve system performance.

Turksat

  • Made the website mobile-friendly.
  • Solved many frontend optimization issues and improved system speed.
  • Developed a test automation system.
  • Worked as a backend developer for many services.
  • Created a mock server application.
  • Participated in software architecture discussions.
  • Set up and configured the frontend CI/CD pipeline.

Ülkem A.Ş.

  • Migrated the entire search infrastructure from slow Sphinx to Elasticsearch, improving product indexing and search speeds, and enhancing Turkish character search functionality.
  • Optimized database queries to improve system performance.
  • Developed a payment system with related dashboards and information screens.
  • Performed team leadership and scrum management.
Onur Eren Elibol
Lead Software Developer
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