EXPLORE


2.5
2.5
100%
$30 USD / Hour
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Serbia (1:13 PM)
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Joined on October 29, 2025
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1 Recommendation
$30 USD / Hour
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I’m a results-driven software engineer and all-around problem-solver — I build and deliver robust, end-to-end digital solutions that work when others get stuck. Need a complex data pipeline, a scalable web platform, a mobile app, or an AI-powered automation? I’ve got you covered. What I bring to the table: 💡 Full-Stack & Mobile Expertise: Clean, maintainable backend + API services (Python / Node / etc.), modern front-ends, cross-platform mobile apps — I handle it all so you don’t have to coordinate multiple specialists. 🤖 AI & Automation Ready: I integrate AI / ML logic, data processing, automation workflows — ideal if you want intelligent features, data-driven automation, or future-proof infrastructure. 🛠️ Problem-Solving & Adaptability: I thrive on “hard problems” — debugging legacy code, optimizing performance, combining technologies (web + mobile + AI + design), or delivering under tight deadlines. 🎯 Design & UX Sense: I don’t just code — I build user-friendly solutions. Whether UI/UX design, full-stack architecture, or smooth UX in mobile/web, I care about usability and user experience. ✅ Reliability, Communication & Quality: I deliver on time, communicate clearly, and treat your project like my own — so you can trust I’ll get the job done end-to-end. Ideal for: * Startups & small teams needing one reliable engineer instead of many specialists. * Projects requiring integration across domains — e.g. backend + AI + mobile + UI. * Clients who value quality, long-term thinking, and “get-it-done” attitude over shortcuts or boilerplate solutions.
Verifications
On time
100%
On budget
100%
Accept rate
64%

C# Desktop Application Development

C# Desktop Application Development

C# Desktop Application Development

Mobile App Design & Development

AI Workflow Automation

Shopify Website Design & Development

C# Desktop Application Development

C# Desktop Application Development

C# Desktop Application Development

Mobile App Design & Development

AI Workflow Automation

Shopify Website Design & Development
Marijo S is by far the best person for helping. Very professional. He knows what he is doing without a lot of talking back and forth. He understands everything with respect to our site. We are so Happy, and will be hiring him as often as we can to help keep our site working! Thank you Marijo S, have a wonderful Christmas Season!
Debora B.
@deborab90
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Oliver, Canada
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Communicates very well, love the work he does and the quality is amazing!
Yoni S.
@urzevel
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bowie, United States
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Fast work, well done
Paul S.
@TelWIFI
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Little Egg Harbor Township, United States
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Marijo's worked very professionally on a tricky Thai to English document to produce a well presented translated document for presentation to the Australian Government. Our communication throughout the project was both prompt and positive.
Craig C.
@craigc64
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Sydney, Australia
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Experience
Software engineer
Jun, 2024 - Present
•
1 year, 9 months
KLN solutions
Jun, 2024 - Present
•
1 year, 9 months
Since initiating my role in June 2024, I have served as a core Software Engineer at KLN Solutions, specializing in the end-to-end development life cycle and optimizing performance across key platforms.

Belgrade, Serbia
Jun, 2024 - Present
•
1 year, 9 months
Intern Business Management Assistant
Apr, 2021 - May, 2023
•
2 years, 1 month
KLN Solution
Apr, 2021 - May, 2023
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2 years, 1 month
While pursuing my degree at the University of Belgrade, I gained practical management & software development acumen as an Intern Business Management Assistant at SAL Solutions.

Belgrade, Serbia
Apr, 2021 - May, 2023
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2 years, 1 month
Education
Belgrade University
2019 - 2024
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5 years
Master of Business Informatics

Serbia
2019 - 2024
•
5 years
Qualifications
AI Automation Explorer
2025
Make.com
I am a certified AI Automation Engineer. For more detail, please check https://www.credly.com/badges/1b30e923-9cea-439a-a1d3-fa84ca862236
2025