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Full-Stack Developer Web Services & APIs
Designing and building end-to-end web services and RESTful APIs — turning complex ideas into scalable, maintainable software.
// about
I graduated in Software Engineering (100% English) from Izmir University of Economics, with a strong technical foundation in Java, C++, C#, databases and software testing. During my degree I completed an R&D internship at Havelsan Teknoloji Radar, one of Türkiye’s leading defence and aerospace technology companies, where I researched SNMP protocols and was part of a team building software for security systems. Today I work as a Full-Stack Developer at Türksat Uydu Haberleşme, one of the organizations managing Türkiye’s critical digital infrastructure, building scalable enterprise web applications and RESTful APIs and working in Docker and Docker Compose based development environments.
// stack
.NET
Java
PostgreSQL
Dapper
MediatR
Docker
Linux
Git
Jira
Postman
Cucumber
Selenium
TestNG
Rest Assured
Swagger
JavaScript
HTML
CSS
+ Clean Architecture · CQRS · SOLID · FluentValidation · Result Pattern · Transaction Management
// projects
Renewing TÜRKSAT's legacy PHP KODSIS CRM — re-platforming the old modules and screens onto a modern .NET architecture with Clean Architecture and CQRS via MediatR, and rebuilding the interfaces with HTML, CSS and JavaScript.
The department’s single source of truth for its platforms, Kubernetes-based applications and virtual machines. I carried out the analysis — defining the needs for centralized log management and monitoring, and establishing the technical requirements.
End-to-end BDD automation for the migrated .NET services, written in Java with Cucumber and Selenium — backed by companion .NET services I built from scratch (same Clean Architecture, CQRS and Result-pattern design) that generate the realistic inputs each scenario runs against.
A Windows desktop application for IP-camera discovery: when a camera is connected to the network over Ethernet, the app scans the local subnet, detects it, and reads its details (IP, name, model) over SNMP — listing it in a Windows Forms UI. Built during my R&D internship at Havelsan.
This very site — a dark, developer-focused portfolio built from scratch with vanilla HTML, CSS and JavaScript, deployed on GitHub Pages at tamerpusat.com.
A desktop cargo management application covering shipment creation, tracking and management workflows, built with Java Swing, socket-based client-server communication (Java data streams), and SQL.
// experience
TÜRKSAT Uydu Haberleşme Kablo TV ve İşletme A.Ş. · Ankara
Building enterprise backend services at Türksat Uydu Haberleşme, one of the organizations managing Türkiye’s critical digital infrastructure, designing clean, layered architectures with SOLID principles, CQRS via MediatR, Dependency Injection and Repository Pattern. Using Docker and Docker Compose in development environments, building RESTful APIs with Dapper and PostgreSQL for reliable data access. Working across the full stack, from database schema and domain logic to the API surface and the interfaces that consume it, with a focus on maintainable, well-tested and scalable code.
Havelsan Teknoloji Radar A.Ş. · Ankara
Completed my R&D internship at Havelsan Teknoloji Radar, one of Türkiye's leading defence and aerospace companies. Researching SNMP protocols, I was part of a team building software solutions for security systems with .NET, MIB Browser, Wireshark and Git. Working alongside experienced engineers, I contributed to the quality and efficiency of the development process and grew technically and professionally through their mentorship.
Mellow Mushroom · Gatlinburg, TN, USA
Spent a summer working in a customer-facing role in an international, English-speaking environment — strengthening my English and cross-cultural communication skills.
// beyond the code
// contact
Whether you're looking for a Full-Stack Developer, a backend engineer for your APIs, or simply want to discuss technology — I'd love to hear from you.