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Luka N
@luka_nikolac
Software developer
Croatia
English, Croatian
About me
I'm a full-stack developer skilled in React (JavaScript/TypeScript) and .NET Core Web API. I build modern, responsive web applications with secure and well-structured backends, ensuring efficient integration between front-end and back-end.
In addition, I specialize in PowerPoint, creating and redesigning presentations with clean, professional and visually appealing slides.
Ideal for startups, businesses, and students who need reliable web solutions or high-quality presentations.
Skills
Luka N
Offline •
See my services
API & Integrations
I will create restful apis using asp net core for integrations
Figma to Web & App
I will create responsive react app using the provided figma design
Portfolio
Work experience
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Software developer Subris GmbH
Fiverr • Freelance
Aug 2025 - Present • 10 mos
* Modernized a legacy ASP.NET WebForms system into a RESTful .NET 8 Web API. * Migrated codebase from VB.NET to C#, improving maintainability, scalability, and security. * Migrated SOAP services to RESTful .NET 8 APIs. Refactored VB.NET → C# with clean architecture principles. * Modernized reporting workflows (Crystal Reports integration). * Improved performance, logging, and error handling. * Upgraded security (auth, secure configs, data protection).
3 Reviews
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1-3 out of 3 Reviews
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danisute
Repeat Client
Switzerland
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danisute
Repeat Client
Switzerland
Outstanding developer! Very reliable, proactive, and delivers clean and well structured code. Communication was clear and professional throughout. Highly recommended
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danisute
Repeat Client
Switzerland
Outstanding developer! Delivered high-quality work quickly and with great attention to detail. Excellent communication, very professional, and went above and beyond to ensure everything was perfect. Highly recommended!
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