- Software Architecture
- Microservices Architecture
- Event-Driven Architecture (EDA)
- Domain-Driven Design (DDD)
- Clean Architecture
- SOLID Principles
- Scalable System Design
- API Design (REST / GraphQL)
- Design Patterns
- Node.js (TypeScript)
- Laravel (PHP)
- Express.js
- NestJS
- PostgreSQL
- MySQL
- Redis
- RabbitMQ
- Elasticsearch
- MongoDB
- Angular (Advanced)
- React / React Native
- Tailwind CSS
- HTML5 / CSS3 / JavaScript (ES6+)
- UI/UX Architecture
- Docker
- GitHub Actions / GitLab CI
- NGINX
- PM2
- Cloudflare
- DigitalOcean / AWS (EC2, S3)
- Linux Server Management
- Unit Testing (Jest, PHPUnit)
- Integration Testing
- End-to-End Testing (Cypress, Playwright)
- Test-Driven Development (TDD)
- Static Code Analysis
- SQL Performance Tuning
- Caching Strategies
- Load Balancing
- Data Modeling
- System Monitoring (Grafana, Prometheus)
- Technical Leadership
- Agile / Scrum Methodologies
- Code Reviews & Mentorship
- Project Planning & Estimation
- Stakeholder Communication
- OWASP Top 10
- Authentication & Authorization
- JWT / OAuth2
- HTTPS, SSL, CSRF, XSS Prevention
- Third-party API Integration
- Payment Gateway Integration
- Webhooks
- SDK Design & Development
- Open Source Contributor
- Technical Documentation
- Bilingual: English & Turkish
- Strategic Thinking & Decision Making
- Cross-functional Team Collaboration