hello, i am hakan eröztekin

software development engineer
at trendyol

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software development engineer @ trendyol / jan 2020 - present

trendyol is turkey's biggest e-commerce company. working remotely on core delivery team to scale up cargo delivery capabilities of the company. responsibilities include developing applications with attention to industry best practices. helping new teammates to adapt quickly, mentoring junior developers, and interviewing new candidates.

</> technology stack & practices:
• java 11 (mainly), javascript, golang
• spring, hibernate, react, angular
• nosql (couchbase), elasticsearch, kibana, redis, sql server
• apache kafka, confluent, rabbitmq, rest
• kubernetes, docker, gitlab, jenkins, argocd, microservices, sonarqube
• grafana, new relic, prometheus, graylog
• unit testing, pair programming, code review, agile

software development engineer @ adesso turkey / mar 2019 - jan 2020

adesso is a Germany based software consultancy company. participated in development of an enterprise-level management application. developed pages that employees and managers use on a daily basis. reduced costs, increased operational productivity, and ease of management.

</> technology stack & practices:
• java 8, spring, rest, maven, hibernate
• sql (mariadb)
• git, bitbucket, jira, jetbrains

founder @ sınavı yerim / jul 2013 - feb 2020 (voluntary work)

after ranking in the top 0.1% among 2 million students in the national university entrance exam, started a blog to voluntarily share my success strategies with the high school students. wrote more than 200 articles which are read 2.5 million times. then, renewed the blog with java 8 spring app which is deployed to aws (ebs, rds, cloudfront) and serves for react frontend. It is accessible at sinaviyerim.com

articles @ medium

i enjoy learning and sharing what i learn. here are some of the articles,

docker in a nutshell
kubernetes in a nutshell
java 11 in a nutshell
managing indexing with dynamic-data in elasticsearch
alert and monitoring with grafana