Available to hire
I am a JavaScript developer with 10+ years of experience across diverse industries including fintech, media, healthcare, and real estate. I have a proven ability to design, develop, and scale full-stack applications with modern technologies.
I am a fast learner with strong teamwork, organizational, and problem-solving skills. I am adept at working under pressure, delivering high-quality code with deadlines, and adapting quickly to new environments.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Language
Serbian
Fluent
English
Fluent
Work Experience
Full Stack JavaScript Developer at Expert Soft Solutions
April 1, 2024 - PresentLead key full-stack initiative focused on improving performance and user experience. Developed and optimized core modules using React, Redux, Node.js, and RESTful APIs. Refactored legacy backend code to improve performance by 35% and reduce response time by 50ms. Implemented user authentication and authorization system using JWT and secure API practices. Introduced component-based architecture and integrated TypeScript for better code quality. Collaborated closely with UI/UX designers to create responsive, accessible interfaces. Wrote unit and integration tests using Jest and Selenium to ensure code reliability. Participated in sprint planning, code reviews, and CI/CD pipelines.
Full Stack JavaScript Developer at Expert Software Solutions, Belgrade
April 1, 2024 - PresentLead key full-stack initiatives focused on improving performance and user experience. Developed and optimized core modules using React, Redux, Node.js, and RESTful APIs. Refactored legacy backend code to improve performance by 35% and reduce response time by 50ms. Implemented user authentication and authorization using JWT and secure API practices. Introduced component-based architecture and integrated TypeScript for better code quality. Collaborated with UI/UX designers to create responsive, accessible interfaces. Wrote unit and integration tests using Jest and Supertest. Participated in sprint planning, code reviews, and continuous deployment pipelines.
Front End Engineer at Interventure
April 1, 2024 - September 22, 2025Collaborated and developed multi-media TV applications, with support for various platforms; implemented Apollo Client to interact with remote data via REST and GraphQL endpoints. Contributed to customer portal and integration of new titles into the Redbox platform. Implemented Storybook for UI components development, testing, and documentation.
Front End Developer at PPRO
December 1, 2019 - September 22, 2025Rewrite integrations between payment methods and merchants.
Frontend Engineer at Interventure, Belgrade
April 1, 2024 - September 22, 2025Collaborated and developed multimedia TV applications, with support for various platforms such as LG, Samsung, Vision. Implemented Apollo Client to interact with remote data by querying data from REST and GraphQL endpoints. Collaborated on developing a portal for customer support. Built an ingestion tool for new titles into the Redbox Platform. Implemented Storybook for UI components development, testing, and documentation.
Front End Developer at GameCredits
May 1, 2019 - September 22, 2025Developed client and web applications for projects such as Desktop Miner and Crypto Wallet; contributed to crypto-related front-end work.
Front End Developer at Seven Bridges
July 1, 2018 - September 22, 2025Core platform development covering front-end development and a wide range of services such as user and session management, billing, platform permissions, and mobile applications.
Frontend Developer at PPRO, Munich
December 1, 2019 - September 22, 2025Rewrite integrations between payment methods and merchants.
Front End Developer at Vast
November 1, 2018 - September 22, 2025Frontend development for a real estate project (web application integrating all aspects of home buying).
Frontend Developer at GameCredits, Belgrade
May 1, 2019 - September 22, 2025Developed client and web applications such as Desktop Miner, Crypto Currency Wallet, and related frontend features.
Software Developer at Comtrade
April 1, 2016 - September 22, 2025Core development of various applications for different clients in finance, health, and virtual storage sectors; languages include JavaScript, C#, and Python.
Modelling & QA Engineer at CallidusCloud
June 1, 2011 - September 22, 2025Wrote Selenium tests for Java web applications; manual and non-functional testing; use-case analysis; modeling and customization of applications according to client requirements.
Frontend Developer at Seven Bridges, Belgrade
July 1, 2018 - September 22, 2025Core frontend development for the platform, covering user and session management, billing, platform permissions and mobile applications.
Frontend Developer at Vast, Belgrade
November 1, 2018 - September 22, 2025Frontend development for real estate project – a web application that integrates every aspect of home buying.
Software Developer at Comtrade, Belgrade
April 1, 2016 - September 22, 2025Software development across finance, health and virtual storage sectors. Core development languages included JavaScript, C#, and Python. Clients included EMC, Skrill, and others.
Model/QA Engineer at CallidusCloud, Belgrade
June 1, 2011 - September 22, 2025Wrote Selenium tests for Java web applications, performed manual and non-functional testing, use-case analysis, and collaboration with clients. Modeling and customization of applications according to client requirements.
Full Stack JavaScript Developer at Expert Solutions
April 1, 2024 - PresentDesign and maintain scalable transport management web application. Lead key full-stack initiatives focused on improving performance and user experience. Developed and optimized core modules using React, Redux, Node.js, and RESTful APIs. Refactored legacy backend code to improve performance by 35% and reduce response time by 50ms. Implemented user authentication and authorization system using JWT and secure API practices. Introduced component-based architecture and integrated TypeScript for better code quality. Collaborated with UI/UX designers to create responsive, accessible interfaces. Wrote unit and integration tests using Jest and Supertest. Participated in sprint planning, code reviews, and continuous deployment pipelines.
Frontend Engineer at Interventure
April 1, 2024 - September 22, 2025Collaborated and developed multimedia TV applications with support for various platforms such as LG, Samsung, Vision. Implemented Apollo Client to interact with remote data by querying data from REST and GraphQL endpoints. Collaborated on a customer support portal. Developed an ingestion tool for new titles into the Redbox Platform. Implemented Storybook for UI components development, testing and documentation.
Full Stack JavaScript Developer at PPRO
December 1, 2019 - September 22, 2025Rewrote integrations between payment methods and merchants. Technologies used: Node.js with Koa.js written in TypeScript, React written in TypeScript, AWS, Kubernetes, Docker.
Frontend Engineer at GameCredits
May 1, 2019 - September 22, 2025Frontend development for desktop miner, cryptocurrency wallet, and related client/web applications.
Frontend Engineer at Seven Bridges
July 1, 2018 - September 22, 2025Core frontend platform development covering a wide range of services, including user and session management, billing, platform permissions, and mobile apps.
Frontend Engineer at Vast
November 1, 2018 - September 22, 2025Frontend development for a real estate project (web application integrating every aspect of home buying).
Software Developer at Contrade
April 1, 2016 - September 22, 2025Core platform development covering a broad range of applications for finance, health, and virtual storage sectors.
Modelling & QA Engineer at CallidusCloud
June 1, 2011 - September 22, 2025Wrote Selenium tests for Java web applications; manual and non-functional testing; use-case analysis; client interactions; modeling and customization of applications according to client requirements.
Education
Master of Information Systems and Technologies at Faculty of Organizational Sciences, University of Belgrade
January 1, 2010 - December 31, 2013Bachelor of Information Systems and Technologies at Faculty of Organizational Sciences, University of Belgrade
January 1, 2006 - December 31, 2010Master of Information Systems and Technologies at Faculty of Organizational Sciences, University of Belgrade
October 1, 2009 - June 1, 2010Demonstrator, Systems Theory Course at Faculty of Organizational Sciences, University of Belgrade
October 1, 2009 - June 1, 2010Bachelor of Information Systems and Technologies at Faculty of Organizational Sciences, University of Belgrade
January 1, 2006 - January 1, 2010Bachelor of Information Systems and Technologies at Faculty of Organizational Sciences, University of Belgrade, Serbia
January 1, 2006 - January 1, 2010Master of Information Systems and Technologies at Faculty of Organizational Sciences, University of Belgrade, Serbia
January 1, 2010 - January 1, 2013Qualifications
Microsoft Certified Professional Developer (MCPD)
January 11, 2030 - September 22, 2025Microsoft Certified Professional Developer (MCPD)
January 11, 2030 - September 22, 2025Microsoft Certified Professional Developer (MCPD)
January 11, 2030 - September 22, 2025Industry Experience
Software & Internet, Financial Services, Media & Entertainment, Healthcare, Real Estate & Construction
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Hire a Full Stack Developer
We have the best full stack developer experts on Twine. Hire a full stack developer in Belgrade today.