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EXPLORE
6.0
6.0
90%
$40 USD / Hour
・
Serbia (9:33 AM)
・
Joined on May 16, 2025
$40 USD / Hour
・
Experienced Web and Mobile Developer adept in all stages of advanced application development, with strong exposure to AI-driven solutions. Knowledgeable in user interface design, testing, and debugging processes, bringing forth expertise in the design, installation, testing, and maintenance of scalable web and mobile systems. Proficient in an assortment of languages including JavaScript, Python, and PHP, with hands-on experience integrating AI models, automation pipelines, services and APIs, and working with databases such as MongoDB and MySQL. Experienced in developing cross-platform and native mobile applications, as well as deploying solutions on cloud platforms like AWS and GCP. Able to effectively self-manage during independent projects and collaborate productively in team-based environments.
Verifications
On time
100%
On budget
100%
Accept rate
100%
Repeat hire rate
9%
Production ML Pipeline
RAG-Powered Knowledge Assistant
Health & Fitness App with Wearables
Consumer Fintech App with Biometrics
Offline-First Field Operations App
Internal Developer Portal
Production ML Pipeline
RAG-Powered Knowledge Assistant
Health & Fitness App with Wearables
Consumer Fintech App with Biometrics
Offline-First Field Operations App
Internal Developer Portal
Good communication and work completed within a reasonable timeframe.
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Pure
$1,100 CAD
It was amazing to work with Slavko, the work and quality of my app was outstanding. He was able to answer all my demands even though some of them were complicated, he was able to achieve the goal i wanted. I will 100% continue to do more work with him in the future. I highly suggest anyone who needs good work and on time to hire him. My whole experience was a 10/10
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He is very professional, knowledgeable in his field, and clearly knows what he is talking about. He responded attentively to my requests and resolved them according to my needs.
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He understood 100% the project I requested. He moved quickly, very accurately and efficiently and was very cooperative throughout the project. I recommend him as a very good professional without reservation!
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Good Work .. Thank you
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Experience
Full-Stack JavaScript Engineer
Apr, 2023 - Nov, 2025
•
2 years, 7 months
divStrong
Apr, 2023 - Nov, 2025
•
2 years, 7 months
● Worked with a React/Redux environment on a major enterprise level product. ● Added a hot module replacement plugin to Webpack. ● Created custom UI library with styled components. ● Implemented GraphQL Data Loader for Postgres SQL tables to reduce DB load. ● Created pixel-perfect designs with styled components. ● Integrated a context API to handle application state. ● Developed a small React Native application (using Expo) as a proof of concept.
Illinois, United States
Apr, 2023 - Nov, 2025
•
2 years, 7 months
Full-Stack Developer
Oct, 2020 - Dec, 2022
•
2 years, 2 months
Qualysoft
Oct, 2020 - Dec, 2022
•
2 years, 2 months
● Worked with a team of four to develop and deploy a full-stack application in React, Node.js, and DynamoDB to AWS and smart contracts in Solidity to Ethereum and Polygon. ● Implemented features like wallet authentication, a product dashboard, on-chain income analytic, and an NFT marketplace.
Belgrade, Serbia
Oct, 2020 - Dec, 2022
•
2 years, 2 months
Software Engineer
Jun, 2018 - May, 2020
•
1 year, 11 months
Net Vision
Jun, 2018 - May, 2020
•
1 year, 11 months
● Built a platform for archiving the web, email, and social media content using Python/Django and React. ● Implemented a touch-free on-boarding process to guide users through independent configuration and direct payment on the site to activate personal accounts. ● Created a proof of existence page that leverages hashes stored on block-chains to prove that files existed in a certain state at a specific time. ● Developed an efficient, cross-medium search functionality using Elasticsearch
Belgrade, Serbia
Jun, 2018 - May, 2020
•
1 year, 11 months
Education
Belgrade University
2013 - 2016
•
3 years
Bachelor's degree
Serbia
2013 - 2016
•
3 years
Freelancer
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