Sr. Full Stack Developer

Architecting enterprise-grade backend systems, AI-powered automation frameworks, and mission-critical financial ecosystems.
Explore Professional Experience

Expertise Profile

Specializing in zero-tolerance, high-performance systems ranging from enterprise e-Invoice and EDI hubs to AI-powered OCR automation and secure PKI/e-Signature solutions. I engineer scalable, high-availability architectures that integrate complex financial workflows, IoT intelligence, and mission-critical messaging platforms into robust corporate structures.

Professional Experience

System Architecture & Enterprise Transformation

Enterprise e-Government & e-Invoicing Platforms

Led technical leadership and architectural design for high-volume document processing systems at major enterprise scales.

  • Designed end-to-end architecture using Modular Monolith and SOA principles for on-premise e-Invoice platforms.
  • Optimized Windows Services, SOAP, and RESTful API layers for performance in high-throughput environments.
  • Engineered legally compliant, auditable, and fail-safe system deployment strategies.
Critical Data Integration & B2B Protocols

AS2 & EDI Integration Architecture

Managed strategic data flows for industrial giants, building high-security AS2-based communication bridges.

  • Developed high-security (Encryption/Signing) data communication protocols based on international trade standards.
  • Ensured 24/7 operational continuity for cross-system synchronization and logistic/financial data integration.
Fintech & Payment Systems Architecture

PayTR & Financial Gateway Integration

Delivered expert solutions for high-security payment flows and financial reconciliation systems.

  • Designed webhook, callback, and asynchronous transaction validation processes via PayTR Gateway.
  • Developed robust validation layers for transaction security (PCI-DSS compliance perspective) and data integrity.
Messaging & Notification Systems Architecture

Setrow & SmartMessage Integration

Implemented enterprise-level automated messaging solutions for high-volume marketing and transactional communications.

  • Architected scalable Email and SMS notification layers integrated with application business logic.
  • Managed API-based integrations for Setrow and SmartMessage, ensuring reliable delivery and real-time tracking.
  • Engineered failover mechanisms and delivery validation for mission-critical customer communications.
Governance & DevOps Culture

Engineering Standards & Lifecycle Management

Optimized modern software development methodologies and internal technical standards to build a sustainable engineering culture.

  • Implemented advanced Branching (GitFlow) and CI/CD compliant versioning strategies on Azure TFS and Git.
  • Managed code review processes and actively participated in defining architectural standards to ensure code quality.
ERP Ecosystem & Integration Logic

Logo Yazılım ERP & Tiger Ecosystem

Ensured secure and consistent synchronization of ERP data with external systems.

  • Architected complex CRM and reporting integrations via Logo Yazılım SOAP/REST service layers.
  • Developed custom business logic extensions within the ERP core using Logo Tiger Adaptation Tool (LOB).
Mobile & Cross-Platform

Mobile Solutions with .NET MAUI

Developed high-performance cross-platform mobile applications for Android and iOS tailored to enterprise needs.

IoT & Edge Computing Architecture

AVA Car Intelligence Systems

Developed end-to-end infrastructures for IoT data collection, cloud processing, and end-user delivery.

  • Enabled real-time processing of data from thousands of vehicles via high-performance PHP and C# based APIs.
  • Architected mobile layers on Android (Java/Kotlin) communicating with vehicle hardware via Bluetooth/OBD protocols.
  • Managed vertical processes from full-stack architecture to deployment operations for the arabaniakillandir.com project.

Featured Projects

e-Invoice Platform

Enterprise e-Invoice Hub

On-premise solution managing high-volume e-invoice traffic with asynchronous processing and fail-safe architecture.
SabancıDx KPMG Turkey

EDI Integration

Secure EDI Bridge

B2B integration infrastructure built with international AS2 protocol compliance and end-to-end encryption.
Turk Philips A.Ş. Versuni Ev Aletleri A.Ş.

Payment Integration

PayTR Financial Gateway

High-security payment integration solution featuring transaction security, asynchronous webhook management, and complex financial validation flows.
PayTR Fintech Payments

Enterprise Cross-Platform Mobile Suite with AI OCR and Cloud Integration

Cross-Platform Mobile Suite

Enterprise mobile applications developed with .NET MAUI. Integrated Azure AI Vision OCR for automated receipt processing and AWS S3 for scalable cloud storage of expense documents.
QfaturaMobil .NET MAUI AI OCR AWS S3

High-Performance Backend System Architecture Diagram

High-Perf Backend Architecture

High-performance system infrastructure built on Windows Services and RESTful APIs with SOA standards.
Edoksis Generator e-Analiz e-Mutabakat

Selenium-based RPA Invoice Extraction Automation Interface

Automated e-Invoice Extraction

Designed and implemented a Selenium-based RPA solution to automate invoice data retrieval from TURMOB, Luca, and GIB systems. Enables person-based, automated data synchronization with internal platforms.
RPA Selenium Automation

Enterprise Payroll Engine Calculation Dashboard

Comprehensive Payroll Engine

Enterprise-grade payroll calculation system for WTW. Automates complex gross-to-net and net-to-gross calculations based on state-mandated legal parameters and monthly variables.
WTW Fintech Payroll

e-Signature and e-Ledger Smart Card Integration Workflow

e-Signature & e-Ledger Automation

Developed a WebSocket-based integration bridge for Akis Smart Cards. Automated the end-to-end signing and submission workflow for enterprise e-Ledger (e-Defter) systems.
Ziraat Bank AKIS e-Defter WebSockets

Car Intelligence Platform IoT Dashboard and Vehicle Analytics

Car Intelligence Platform

IoT-based infrastructure for real-time vehicle analytics. Includes Vale Mode (live tracking, anti-theft alerts, and data privacy lock) and Smart Interactive Services (Duty Pharmacy locator, daily horoscopes, news, and weather).
AVA Car IoT Vale Mode

Technical Expertise

Backend & Core

C# / .NET 9 ASP.NET Core Web API Entity Framework Windows Services Multithreading LINQ

Architecture & Patterns

SOLID Principles Clean Architecture DDD (Domain Driven Design) Microservices / SOA Modular Monolith Design Patterns Event-Driven Architecture

Database Systems

MS SQL Server PostgreSQL MongoDB (NoSQL) Redis (Caching) Data Governance Replication & HA Performance Tuning

Protocols & Integration

AS2 Protocol EDI (EDIFACT/X12) REST / SOAP Azure AI Vision (OCR) AWS S3 Selenium Automation Web Scraping / RPA WebSockets PKI / Smart Cards Setrow & SmartMessage PayTR Integration OAuth2 / OpenID Connect B2B Gateways Webhooks

Cloud & DevOps

Azure DevOps CI/CD Pipelines Docker GitFlow / GitHub IIS Management Agile / Scrum JIRA

Mobile & Cross-Platform

.NET MAUI Android (Java/Kotlin) MVVM Pattern Bluetooth / OBD-II Native Interoperability Push Notifications

Licenses & Certifications

RD

Mikroservis Mimarisi Eğitimi

Robot Dreams • Issued June 2024

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Professional Scrum Master™ I (PSM I)

Scrum.org • Issued May 2022

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A

Alcatel-Lucent Telecommunication Network Knowledge Junior Certification

Alcatel-Lucent • Issued June 2015

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