Open to opportunities

fatih kayacı

@fatihkayac

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Junior .NET backend developer building microservices and event-driven systems with clean code and strong testing.

Turkey

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What I'm looking for

I’m looking for a backend role where I can build clean, testable .NET microservices and event-driven systems. I want to ship reliable APIs, improve performance with real metrics, and grow with a team that values engineering discipline.

I’m a Computer Engineering graduate (2024) and M.Sc. student, currently working as a backend developer with .NET and C#. I build microservices and event-driven systems, and I’m deliberate about clean architecture and maintainability from day one.

I care about clean code, good tests, and systems that are fast and reliable. In my projects, I use Clean Architecture and CQRS (MediatR) to structure services, and I prioritize reliability with RabbitMQ (exchanges, durable queues, manual acknowledgements), Redis (caching, idempotency), and Polly resilience policies.

I also bring real product experience from a SaaS side project where I owned the REST API, implemented tenant isolation, and handled end-to-end Linux server setup, deployment, and basic CI/CD. I enjoy taking features from requirements to development, testing, and deployment—always with measurable performance and dependable behavior.

Experience

Work history, roles, and key accomplishments

Current

Co-founder & Backend Dev

Current

Cyftech (Katsis)

Jan 2023 - Present (3 years 5 months)

Owned the backend of a multi-tenant SaaS, delivering REST APIs with tenant isolation and managing Linux server setup, deployment, and basic CI/CD. Worked end-to-end across requirements, architecture, development, testing, and deployment in a 3-person team.

REST APIs Data Modeling PHP MySQL Linux Server Administration CI CD Tenant Isolation Deployment

Software Developer Intern

IAS (Industrial Application Software)

Nov 2023 - Dec 2023 (1 month)

Contributed to enterprise ERP modules within a structured team, applying SOLID principles and participating in code reviews. Optimized high-volume reporting SQL queries to improve data access times.

SOLID Code Review SQL Query Optimization