Osman Raif Güneş

Professional Summary

Senior Full Stack Developer and Tech Lead with 12+ years of experience building scalable, cloud-native, and high-traffic enterprise systems. Strong expertise in .NET, Node.js, modern frontend frameworks, event-driven architectures, and AI-powered backend integrations.

System Design & Architecture Highlights

• Designed high-scale systems processing data for millions of users
• Built event-driven architectures using Kafka and RabbitMQ
• Implemented Redis-based caching and async processing for performance optimization
• Designed fault-tolerant systems with idempotency, rate limiting, and circuit breakers

AI & Intelligent Systems

• Integrated LLM APIs (OpenAI / Azure OpenAI) into backend systems
• Implemented embedding-based semantic search for large-scale datasets
• Designed AI-assisted features for analytics, search, and decision support

Professional Experience

Full Stack Developer Poilabs

• Led full-stack development of location-based navigation and campaign platforms
• Developed cloud-native REST APIs deployed on Azure
• Built analytics dashboards and improved admin performance by 40%

Lead Developer RobotQA

• Architected codeless test automation platform reducing testing time by 70%
• Designed event-based processing pipelines with RabbitMQ and Redis
• Led backend services using Node.js and microservice architecture

Senior Software Developer BELBİM (İBB)

• Developed enterprise-scale payment and transaction systems
• Worked on high-availability backend services used by millions of citizens
• Contributed to secure financial workflows and data consistency mechanisms

Full Stack Web Developer OnUs Services

• Developed web-based business applications using ASP.NET and JavaScript
• Worked on database-driven systems and internal admin tools

Technical Skills

• Backend: C#, .NET Core, ASP.NET MVC, Node.js, Express.js, Entity Framework, REST APIs, Swagger, Microservices
• Database: T-SQL, PostgreSQL, NoSQL
• Event & Messaging: Kafka, RabbitMQ, Redis
• AI: LLM API Integration, Embeddings, Semantic Search
• Frontend: Vue.js, React, Next.js, Angular
• Hybrid Mobile: Ionic, React Native
• Cloud: AWS, Azure, Firebase, Cloud Functions
• Security: OAuth2, OpenID Connect, JWT (pitfalls & best practices)
• DevOps: Docker, Kubernetes, CI/CD
• Cost Optimization: Cloud cost monitoring, scaling & FinOps strategies

Education

• BSc – Computer & Educational Technology, Boğaziçi University
• MSc – Computer Engineering (MSc), Cyber Security, Yıldız Technical University (In Progress)

Languages

• English – Professional Working Proficiency (C1)
• Turkish – Native