Okan K.

Backend Developer

Spain

Trusted member since 2024

4 years of experience

He has significant expertise in designing and developing systems from scratch, bringing a product-focused mindset that adds substantial value to any team.

His commitment to continuous improvement and problem-solving drives his success in every engagement. Okan's deep understanding of Golang enables him to create robust applications capable of handling complex processes effectively.

He has significant expertise in designing and developing systems from scratch, bringing a product-focused mindset that adds substantial value to any team.

Main expertise

AWS SQS2 years

Golang4 years

SQL3 years

MySQL3 years

Experience4

Software Engineer

FairMoney•

Banking and Finance

Jan 2023 · 3y 2m

Developed features and performance enhancements using Go and Ruby on Rails.
Led a complex project involving multiple stakeholders, including teams from risk, product, and other technical departments within the engineering group. Successfully delivered the project on time and within scope.
Transformed parts of the monolithic Ruby on Rails app into a Go microservice in an event-driven manner, enhancing its capability to handle high traffic independently.
Updated outdated codebases to meet modern development standards, improving overall functionality.
Collaborated with management, internal teams, and development partners regarding software application design and project progress.

PostgreSQL

Ruby on Rails

AWS

Golang

Microservices

Backend Developer

Hepsiburada•

E-commerce

Sep 2022 - Jan 2023 · 4m

Developed backend components using Go.
Re-architected the logging system to prevent identical errors from being re-logged in complex eCommerce projects.
Implemented automatically generating Swagger documentation for approximately 100-130 endpoints, significantly improving documentation efforts.

Golang

Microservices

DevOps

API

REST API

Software Engineer

Gowit Techonology•

Information Technology (IT) and Services

Feb 2022 - Sep 2022 · 7m

Developed backend components using Go and Python, utilizing Kafka for message queuing and PostgreSQL for the database.
Optimized and enhanced the CI/CD pipeline to support the development workflow.
Redesigned the architecture of the analytics service, adding proper caching, writing, and ingestion mechanisms, which reduced the average response time by nearly 40%.
Led the creation of architectural documentation for services, visualizing over 10 microservices architectures.

PostgreSQL

Golang

Apache Kafka

DevOps

API

Machine Learning

Software Engineer

AnalyticaHouse•

Data Analytics

Aug 2020 - Feb 2022 · 1y 6m

Created a Slack app integrating various online ad platforms (Google, Facebook, TikTok) and designed the application architecture, database tables, and UX design from scratch.
Implemented Jenkins for CI/CD.
Developed a streaming data pipeline for clickstream data in Google Cloud with a latency of 5 seconds, using Cube.js for querying and React.js for visualization.
Implemented Apache Airflow for batch jobs and deployed it on Compute Engine with Docker, creating and maintaining DAGs for various processes.
Automated the generation of product reports through web scraping of approximately 25 major e-commerce websites in Turkey, using Google Cloud VM with Crontab for automation.
Led version control efforts and employed GitHub and other open-source repositories for the organization.
Created various SQL scripts for querying and transporting BigQuery data.
Documented technical workflows and procedures in a private wiki to educate newly hired employees.