Backend Engineer · CS Graduate Student · Istanbul

Furkan Ayag

I build

Enterprise-grade backend systems from microservices on AWS to on-premise monoliths. Pursuing M.Sc. in Computer Engineering at YTU — deep learning & neural networks.

View Projects LinkedIn

3+ Years Experience

5+ Projects Shipped

M.Sc. Computer Engineering

scroll

01 · About

Who I Am

I'm a backend developer with 3+ years of experience building enterprise applications and system architectures. My stack revolves around Java & Spring Boot, cloud infrastructure on AWS, and containerisation with Docker & Kubernetes.

I care about clean, scalable code — whether that's a monolith serving Turkey's largest car-fleet company, or a distributed microservice stack processing real-time financial transactions for a government ministry. I've shipped production systems as both a team engineer and independent consultant.

Currently deepening my CS fundamentals through an M.Sc. at Yıldız Technical University, focusing on deep learning and neural networks.

Location

Istanbul, Turkey

furkan_ayag@outlook.com

Education

M.Sc. Computer Eng.

Status

● Open to work

0 Yrs Exp

0 Projects

0 Tech Stack

Languages

Turkish Native

English Professional

Daily Stack

Java 21 Spring Boot PostgreSQL AWS Docker Kubernetes Redis Git

02 · Experience

Where I've Worked

Solid-ICT Dec 2022 – Present

Mid Backend Developer

Developing monolithic and microservice-based enterprise backend applications with Java & Spring Boot
Designing and maintaining system architectures for multiple client projects simultaneously
Leveraging AWS: EC2, Elastic Beanstalk, ElastiCache, Lambda, EventBridge, SQS
Administering SQL databases and implementing Hibernate for ORM and data management

Hdpiano Sep 2023 – Jul 2024

Backend Development Consultant

Independent tech consultancy for a US-based piano learning platform serving thousands of users
Refactored legacy systems to improve performance, security, and system efficiency
Resolved production bottlenecks, significantly reducing response times

03 · Education

Academic Background

Sep 2025 – Jun 2027

Master of Science

Yıldız Technical University

Computer Engineering — Deep learning & neural networks focus.

Sep 2016 – Jun 2022

Bachelor's Degree

Yıldız Technical University

Computer Engineering — Database management, operating systems, core CS.

May 2019 – Sep 2019

Exchange Student

CIEE — USA

International exchange program — language proficiency & cross-cultural collaboration.

04 · Projects

Things I've Built

Backend Development Lead

Darphane

Feb 2025 – Feb 2026

Precious Metal Monitoring System for the Republic of Türkiye Ministry of Treasury & Finance. Led the full backend strategy — architecture to deployment. Java 21 & PostgreSQL, advanced security mechanisms, strict data protection compliance at scale.

Java 21Spring Boot PostgreSQLSecurityGov

Backend Development Lead

HedefFilo

Apr 2024 – Jan 2025

Monolithic multi-role backend for Turkey's largest car fleet rental company. Acts as middleware between multiple external servers. Contributed to architecture and on-premise server environment design.

Java 17Spring Boot On-PremiseMiddleware

Backend Developer

Gezerkasa

Nov 2023 – Dec 2024

Finance microservice app with multiple payment provider integrations — real-time financial operations and secure transaction management. PostgreSQL + Redis caching. Designed and maintained the full suite of backend services and RESTful APIs.

Java 17Microservices PostgreSQLRedisPayments

Backend Developer

4play

Dec 2022 – Nov 2023

Multiple communicating backend services for "Kim GB İster" mobile game platform. Scalable event-driven architecture on AWS (EC2, Beanstalk, SQS, EventBridge) — reliable game operations under high user load.

JavaSpring Boot AWSEventBridgeSQS

Backend Consultant

Hdpiano

Dec 2022 – Nov 2023

Maintained and refactored a legacy backend for a US piano-learning platform with thousands of users. Resolved performance bottlenecks, improved code quality and system stability under production workloads.

JavaLegacy Refactor PerformanceConsulting

05 · Skills

What I Bring

Core Proficiencies

Java / Spring Boot PostgreSQL / MySQL AWS Docker / Kubernetes Redis Hibernate / ORM

Toolbox

Linux Networking Git RESTful APIs Microservices System Design Elastic Beanstalk EventBridge ElastiCache CI/CD Deep Learning Neural Networks Hibernate Computer Science

Soft Skills

System Architecture Tech Leadership Independent Work Client Comms