Open to opportunities

Marko Nikolic

@markonikolic

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I am a mid-level Frontend Developer building high-performance, SEO-focused e-commerce web applications.

Serbia

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What I'm looking for

I seek a collaborative, cross-functional team role building scalable, high-performance e-commerce sites where I can mentor juniors, focus on mobile-first responsive design, accessibility, SEO, and improve developer tooling.

I am a mid-level Frontend Developer with a degree in Electrical and Computer Engineering and several years of experience building and optimizing multi-site e-commerce platforms. I focus on clean architecture, mobile-first responsive design, and delivering exceptional user experiences across devices.

I specialize in JavaScript, TypeScript, Svelte, PHP, HTML, CSS and WordPress, creating reusable components, custom themes and plugins while optimizing performance, accessibility and SEO. I write unit tests, document code with JSDoc, use custom CLI tooling and enjoy collaborating in cross-functional teams and mentoring junior developers.

Experience

Work history, roles, and key accomplishments

Frontend Developer

Newparts Inc

Nov 2020 - Aug 2025 (4 years 9 months)

Core frontend developer for a multi-site e-commerce platform, improving HTML performance and SEO while building reusable components, custom WordPress themes, and plugin integrations.

JavaScript TypeScript Svelte HTML CSS SASS WordPress REST APIs Unit Testing SEO

Frontend Developer Intern

Vega IT

May 2020 - Jun 2020 (1 month)

Implemented pixel-perfect responsive designs using HTML, CSS, and vanilla JavaScript and automated frontend workflows with Gulp.

HTML CSS JavaScript Responsive Design Gulp

Intern - MuleSoft

Devoteam Serbia

Nov 2019 - Dec 2019 (1 month)

Completed a MuleSoft 4 internship focused on integration development and REST API fundamentals across enterprise projects.

MuleSoft REST APIs Integration Anypoint Platform Documentation

Education

Degrees, certifications, and relevant coursework

University of Novi Sad, Faculty of Technical Sciences

Bachelor of Science, Electrical and Computer Engineering

2014 - 2020

Activities and societies: Internships: Devoteam Serbia (MuleSoft 4 Technology) Nov 2019–Dec 2019; Vega IT (Frontend Developer) May 2020–Jun 2020.

Completed a Bachelor of Science in Electrical and Computer Engineering at the Faculty of Technical Sciences, University of Novi Sad from 2014 to 2020.