Bilal Köse
Temporarily unavailable for freelance

Bilal Köse

Computer Engineer

Computer engineer with 10+ years of hands-on experience. My day-to-day work is software engineering in the .NET ecosystem — scalable microservices, cloud-native APIs, and production-grade backend platforms — but my engineering background is broader: computer networks, Linux systems, security, and infrastructure from on-prem to cloud. I care deeply about clean architecture, maintainable code, and engineering excellence, and I bring the same rigor whether the problem is a distributed system, a Kubernetes cluster, or a mission-critical ERP.

10+ Years Exp.
30+ Projects
7 Companies
35+ Technologies
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Address İzmit, Kocaeli, Turkey
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Study University of Karabük
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Freelance Temporarily closed

Work Experience & Education

2024 — Present

Senior Software Engineer

Teamsystem / Mikrogrup Bilişim A.Ş. İzmit, TR

Developing enterprise-level accounting and ERP software for the Turkish market. Working on microservice architecture, API integrations, and performance optimizations using .NET 8, SQL Server, and Azure cloud services.

2022 — 2024

Senior Software Engineer

Team.Blue / Natro İstanbul, TR

Developed domain management and hosting automation platforms. Built robust REST APIs and internal tools supporting thousands of customers, utilizing .NET Core, EF Core, RabbitMQ, and Redis.

Ağu 2020 — Tem 2022

Software Engineer

MayaICT İstanbul, TR

Contributed to the Octapull unified communication platform. Designed real-time collaboration features with SignalR, implemented clean architecture patterns, and delivered high-quality backend services.

Ara 2019 — Ağu 2020

Freelance Web Developer

Pardus Bilgisayar Yazılım Freelance

Delivered freelance web application projects. Designed and developed full-stack solutions for small and medium businesses using ASP.NET, MySQL, and front-end technologies.

Ara 2018 — Ara 2019

Web Developer

Pardus Bilgisayar Kocaeli, TR

Developed web applications and internal tools. Focused on backend development with .NET, Hangfire background jobs, and MySQL database design.

Kas 2016 — Mar 2017

IT Specialist

Teknodrom A.Ş. TR

Provided software support and reporting at the IT Department. Assisted in front-end development tasks and helped maintain internal systems using MySQL and front-end technologies.

Ara 2012 — Eki 2015

Freelance Software Developer

DataPlus Bilgi Teknolojileri İstanbul, TR

Built Windows and web applications as an independent freelance developer. Worked on diverse client projects involving database design, front-end development, and application delivery.

2016 — 2021

B.Sc. Computer Engineering

Karabük Üniversitesi Education

Graduated from Karabük University with a degree in Computer Engineering. Focused on algorithms, software architecture, and systems programming. My graduation project applied deep learning to Parkinson's disease detection via voice signal analysis — achieving 92% classification accuracy. Currently pursuing Certified Kubernetes Administrator (CKA) certification.

Technologies & Tools

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Backend
C# / .NET 8 ASP.NET Core MVC EF Core REST API SignalR RabbitMQ gRPC
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DevOps & Cloud
Docker Kubernetes Azure CI/CD ArgoCD Helm Prometheus
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Databases
SQL Server PostgreSQL Redis MongoDB Elasticsearch Vault
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Tools & Architecture
Git / GitLab Serilog / Graylog Grafana Linux Clean Architecture CQRS

Let's Work Together

I'm always open to interesting projects and new opportunities. Feel free to reach out — I'd love to hear about your ideas.

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