Gøkmen Øzbayir
Fullstack Software Engineer
Software Engineer with experience in fullstack software development, software design and architecture. I work structured and take ownership of both independent tasks and solutions developed in collaboration with teams and cross-functional stakeholders.
Selected Projects
Bachelor's Project, University of Southern Denmark
AI Integration Architecture (TrafikGPT)
Vendor-independent architecture for an AI driving instructor on TeoriOnline.dk. The AI provider is swapped through configuration via Vercel AI Gateway, and streaming answers are grounded in Exa web search of official Danish traffic sources.
Personal Project, Event Photo Sharing
Wedding Photo Sharing
Custom photo sharing app built for a friend’s wedding. Guests scanned QR codes at their tables to upload photos instantly, resulting in 91 memories from 212 visitors with zero downtime.
SaaS Platform, Driving Theory E-learning
TeoriOnline
TeoriOnline.dk is a digital learning platform for preparing the Danish driving theory test. It provides theory materials, practice exams, progress tracking, and guides aligned with the official test.
Software Project, Modular Software Architecture
Modular Java Application (AsteroidsFX)
Modular Asteroids game in Java with JPMS, JavaFX, and Spring — built as a Maven multi-module project with a plugin-based architecture following CBSE principles.
Full Stack Project, Real-Time Market Data
Real-Time Cryptocurrency Dashboard
Fullstack cryptocurrency dashboard with live API data, separate frontend/backend/database layers, and interactive React visualizations with real-time updates.
Experience
- Feb 2025 – Present
Founder @ TeoriOnline
Copenhagen, Denmarkteorionline.dk- Designed and implemented REST API endpoints for integrations with systems
- Developed modular React components with a focus on reusability and maintainability
- Responsible for the software architecture of a SaaS platform, with a focus on scalability and modularity
ReactNext.jsTypeScriptSaaSSoftware Architecture - Sep 2023 – Feb 20262 yrs, 6 mos
Software Engineer @ a:gain [again]
Copenhagen, Denmark- Automated data flows using APIs and ETL, reducing manual work and improving data accuracy
- Developed web and backend in C#/.NET, React, and Azure for internal processes and digital products
- Collaborated across sales, marketing, and product development on technical solutions and integrations
C#/.NETReactMicrosoft AzureSQLETLIntegrationsAutomation - Jan 2021 – Sep 20221 yr, 9 mos
Account Manager @ Verifone
Herlev, Denmark- Managed a B2B-portfolio through relationship building, upselling, and customer engagement
- Converted leads into new B2B customers through consultative sales and structured follow-up
- Negotiated contract terms with a focus on customer needs, business value, and long-term partnerships
B2B SalesAccount ManagementConsultative SalesContract NegotiationUpselling - Oct 2025 – Present
Full Stack Engineer @ Under Samme Sol
- Working end-to-end across feature development, Stripe integrations, and deployment
- Developing and maintaining the organization's digital platform across frontend and backend
- Translating business needs into features, with responsibility for UI/UX, integrations, and implementation
Full StackStripeIntegrationsUI/UXDeployment
Education
- Sep 2022 – Jan 2026
B.Eng. in Software Engineering
University of Southern Denmark, SDUFocused on software development, system design, databases and cloud technologies, developing competencies in APIs, software architecture and modern web development. Bachelor’s project on AI architecture with LLM providers, focusing on flexibility and vendor independence.
- Feb 2019 – Jan 2021
AP Graduate in Marketing Management
Zealand Academy of Technologies and BusinessFocused on business, sales, marketing, finance and organizational understanding, combining analysis, planning and execution of commercial initiatives. Worked with both B2B and B2C marketing, market communication and customer needs.
Technologies
- Languages
- TypeScript
- JavaScript
- C#
- .NET
- Frontend
- React
- Next.js
- Backend
- Node.js
- EF Core
- Data
- PostgreSQL
- SQL Server
- Redis
- Cloud & DevOps
- Azure
- Azure DevOps
- Docker
- Git
TypeScript
JavaScript
C#
.NET
React
Next.js
Node.js
EF Core
PostgreSQL
SQL Server
Redis
Azure
Azure DevOps
Docker
Git