Nikola Radivojevic

- Built and maintained 10+ frontend services (SPA, PWA, Node.js) across 3 teams - Developed backend microservices and OAuth 2.0 auth for an edtech platform - Integrated Stripe, SendGrid, S3, and other third-party services - Created 5+ services with 10+ controllers each - Defined company-wide frontend architecture and UI kit used across 4+ products - Built high-load components (e.g., Gantt chart handling 2M+ rows) - Migrated APIs from REST to GraphQL

-Helped build and improve E-commerce apps using Next.js and headless CMSs like Strapi and Contentful. -Built a furniture management app with Firebase and Vue. -Customized Shopify and HubSpot for content and marketing workflows. -Created reusable React components, cutting mobile app development time by 20–30%. -Developed 20+ components for analytical data visualization. -Worked in an R&D lab building high-fidelity prototypes and testing with A/B experiments, user feedback, and eye-tracking tools.

-Developed B2B SPA with Backbone.js which reduced company processes time by 50% -Created more than 5 reusable local packages which reduced the time to develop a web application in 4x -Design suggestions and new features implementation

-Contributed as a Back-End Developer, focusing on enhancing the server-side functionality of web applications. -Used jQuery for enhanced client-side interactivity and efficient data manipulation. -Gained experience in back-end frameworks, Laravel and WordPress

-Joined as a Front-End Developer, focusing on crafting interactive and user-friendly interfaces. -Contributed to custom-built real estate solutions in WordPress