About

Learn more about me

Software Engineer

With expertise in software development and scalable microservices architecture, I have utilized REST services to build robust systems. My experience extends to cloud computing, handling complex web requests, and developing high-performance, high-scale web applications.

  • Data Pipelines
  • Microservices Architecture
  • Cloud Computing
  • CI/CD Integration
  • Efficency Improvement
  • Teamwork and Collaboration
  • Programming Interface (API)
  • SOLID Principles

I have engineered CI/CD integration to improve deployment processes. Managed real-time data streaming pipelines using Java, Spring Boot, PostgreSQL. Additionally, my work includes optimizing systems for high loads using Kafka.

skills

review my competencies

Java & Spring Boot 5 years
PostgreSQL 5 years
REST 5 years
Git 5 years
Maven 5 years
OOP 5 years
JavaScript & HTML & CSS 4 years
Docker 4 years
Hibernate 4 years
Agile 4 years
Python 3 years
Kafka 3 years
JUnit 3 years
Redis 3 years
GitLab CI/CD 2 years
GCP (BigQuery, BigTable, GCE) 2 years
Grafana & Prometheus 2 years
React.js 2 years
Kubernetes 2 years
MongoDB 2 years
AWS (S3, EC2, DynamoDB, RDS) 1 year
Cassandra 1 year
Elasticsearch 1 year

Experience

Check My Experience

    Data & Software Engineer

    HEPSIBURADA, Istanbul, Turkey

    03/2022 - 08/2023
    • Delivered real-time E-commerce data to critical systems like recommendation, achieving 30% faster data processing with Kafka.
    • Managed a clickstream data pipeline on GCP with Java microservices, JUnit tests, and Python scripts, ensuring 99.4% uptime.
    • Employed Grafana and Prometheus for real-time system performance monitoring, guaranteeing up to 70,000 users per second.
    • Crafted a Spring Boot app with PostgreSQL and REST services, decreasing data update time from 4 days to 30 minutes.
    • Adjusted GCE virtual machines to handle peak traffic, enabling seamless processing of 500 TB of data per day.
    • Enhanced GitLab CI/CD for GKE using Docker and Maven, reducing release times by 30%.
    • Used Technologies: Java, Spring Boot, Hibernate, Python, Kafka, GCP, PostgreSQL, Docker, GitLab CI/CD

    Software Engineer

    SEBIT, Ankara, Turkey

    02/2021 - 03/2022
    • Developed scalable Java Spring microservices for a nationwide EdTech system, improving efficiency with Kafka and Redis.
    • Delivered behavior insights to government stakeholders using PostgreSQL and Cassandra, analyzing a 13 million user dataset.
    • Implemented dynamic cluster binding in Elasticsearch to resolve user accessibility issues, enhancing user experience.
    • Used Technologies: Java, Spring, Kafka, PostgreSQL, Redis, Cassandra, Elasticsearch, Docker

    Java Developer

    Everva, Ankara, Turkey

    06/2019 - 01/2021
    • Designed microservices architecture for real-time geospatial data delivery to Ministry of Trade using Java Spring Boot and Docker.
    • Improved spatial data analysis efficiency using PostgreSQL, PostGIS and MongoDB, with optimized database queries by 35%.
    • Integrated third-party APIs for enhanced GIS capabilities, providing real time insights on trade routes and market locations.
    • Used Technologies: Java, Spring Boot, Hibernate, PostgreSQL, Docker, Redis, MongoDB, React

    Software Engineer

    COMODO, Ankara, Turkey

    12/2017 - 12/2018
    • Implemented a Java (Spring Boot, Hibernate) web app with PostgreSQL, Docker, HTML, Javascript, Jquery to automate employee performance evaluations, reducing HR workload from weeks to days.

education

Look over my academical background

    Master's Degree in Computer Science

    Maharishi International University, Fairfield, IA
    GPA: 3.95
    2023-2024
    • Built a rental car application website using Node.js, Express, JavaScript for seamless user interaction. See it here!
    • Developed Alumni Portals backend system with microservices architecture, using Spring Boot, Spring Cloud, Spring Security, Spring Gateway and Eureka Service Discovery. See it here!
    • Configured Spark Streaming to process and store data in HBase based on threshold conditions, visualizing with Python, Jupiter Notebook and Plotly. See it here!

    Bachelors Degree in Computer Science

    TOBB University of Economics and Technology, Ankara, Turkey
    GPA: 3.17
    2015-2020
    • During the COVID-19 pandemic, a software was developed in a hackathon to connect volunteers with people in need of assistance. The project utilized Python Flask for the backend, along with HTML, JavaScript, CSS, and jQuery for the frontend. Out of 100 teams participating in the hackathon, the project achieved 6th place.

blog

See My Works

Handling Page Transitions in Streamlit: A Practical Guide

In developing my open-source project Job Search Sculptor with Python, I used Streamlit's session state and buttons to manage page transitions effectively, enhancing the overall user experience.

Enhancing Chess Analysis with AI-Generated Commentaries

In developing my open-source project Chess Commentator with Python, Java, Spring Boot and AWS, I used OpenAI API to generate commentaries.

Contact

Contact Me

My Address

Charlotte, NC, 28269

Social Profiles

Email Me

victoraysev@gmail.com

Call Me

(641) 954 5264

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