Nikolina Tkalec
Senior Frontend & Mobile Developer | React, TypeScript, RN
New to Contra
Nikolina is ready for their next project!
I know what 2 AM rejection emails feel like.
I know the silence after a final interview. The inbox you refresh 40 times a day. The job listing that asks for everything you are, and still says you're not enough.
I'm a developer with 9+ years of experience. And right now, I'm in the middle of it. The job search. The doubt. The exhaustion.
So when I saw the Envato #HumanByDesign challenge, I didn't want to make a brand for a fictional company. I wanted to make something real. Something for everyone who's lost themselves in the job search. Who's thinking about giving up or already has.
Envato was my primary creative toolkit — AI ImageGen, AI VideoGen, AI SoundGen, stock videos, stock sound effects, and music.
But my most important decision wasn't about tools. I recorded my own voice and deleted it. Because silence says everything that words can't.
This video isn't polished. It isn't perfect. It's honest. Just like the people behind the tags.
Stop looking for a machine in a person. Start looking for humanity in the process.
Delete the tags. See the human.
#envatochallenge #HumanByDesign @envato
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Description:
Full-stack scavenger hunt and storytelling platform for tourism and hospitality, built end-to-end as a personal project.
Role:
Full-Stack Developer (Personal Project)
Key Features & Responsibilities:
Designed and built a multi-tenant mobile and web platform from scratch
Built secure authentication, GPS-based features, and a reward system
Delivered a complete product across mobile, web, and backend as a solo developer
Technologies & Skills Used:
React Native (Expo), React (Vite), Node.js, PostgreSQL
Solo end-to-end ownership: architecture, development, security, deployment
Images:
Available upon request.
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11
Description:
Web application for managing clients, machines, and work orders with digital signing and PDF export functionalities.
Role:
Senior React Developer
Key Features & Responsibilities:
* Led development of client and machine management modules
* Enabled digital signing and PDF export for operational efficiency
* Collaborated with backend team member to deliver responsive, high-
performance UI
* Contributed to UI/UX design improvements using Figma
Technologies & Skills Used:
* React and TypeScript for frontend development
* Material-UI for consistent, responsive UI components
* react-sketch-canvas for digital signature functionality
* Responsive design for cross-device compatibility
* Figma for UI/UX collaboration
*Comprehensive testing to ensure application reliability
Images:
Due to system protection and confidentiality policies, I am unable to share more detailed screenshots or internal visuals of the platform.
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13
Description:
Development of a comprehensive enterprise IT system with 20+ interconnected applications supporting accounting, retail, and hospitality operations.
Role:
Full-Stack Web/Desktop Developer (JavaScript / PHP/ Pascal)
Key Features & Responsibilities:
* Maintained and enhanced 20+ integrated modules, ensuring seamless
accounting, HR, retail, and hospitality workflows
* Developed new functionalities to improve system usability and efficiency
* Ensured legal and tax compliance for VAT, payroll, and financial regulations
* Built scalable modular architecture with real-time reporting and analytics
* Balanced programming, phone support, and on-site customer training,
demonstrating strong multitasking
* Documented and tracked user requests and implemented Change Requests (CRs) to enhance system functionality
* Applied Waterfall methodology and mastered structured project delivery
Technologies & Skills Used:
* HTML, CSS, JavaScript, PHP, jQuery, Pascal
* Internal ORM PostgreSQL & Firebird
* Waterfall methodology
* Customer support & training
Images:
Due to system protection and confidentiality policies, I am unable to share more detailed screenshots or internal visuals of the platform.
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