Andjelko Cvjetkovic

Core Skills

Programming Paradigms: Object-Oriented, Functional and Procedural programming
Programming Languages: JavaScript, TypeScript, C#, C++ and CSS
AI Engineering: Vercel AI SDK, OpenAI API, Anthropic Claude, Codex, Antigravity, Prompt Engineering
Libraries and Frameworks: React, Next.js, Remix, Svelte, TanStack, Visx, D3.js and Three.js
CSS Frameworks: Tailwind CSS and Material-UI
UI Libraries: Radix, Shadcn and React-Aria
Web Rendering Technologies: SSR, SSG and CSR
Mobile Development: React Native
Testing: Jest, React Testing Library, Vitest, Playwright and Cypress
Bundlers: Vite and Metro
Database: SQL and MongoDB
Version Control: Git
Agile Methodologies: Scrum and Kanban

Architected and developed complex web applications leveraging Next.js, Remix, and Svelte, ensuring high performance and SEO optimization.
Engineered interactive data visualization dashboards using D3.js and Visx, transforming complex datasets into actionable insights.
Built cross-platform mobile applications using React Native.
Designed and integrated robust RESTful APIs and secure JWT-based authorization flows.
Delivered scalable CMS solutions (Payload, Sanity, Strapi) and managed complex monorepo architectures to streamline development velocity.
Developed complex animations and interactive components to enhance user experiences.
Implemented Internationalization (i18n) for multi-language support across applications.
Designed and built email templates and notification systems to improve user communication.
Wrote and maintained unit, integration, and end-to-end (E2E) tests to ensure application reliability.
Worked within Agile teams, actively participating in sprint planning, standups, and retrospectives.
Collaborated with designers to implement pixel-perfect designs and ensure consistent user experiences.
Communicated directly with clients to gather requirements and deliver tailored, scalable solutions.

Bachelor's degree, Computer Software Engineering | Sep 2019 - Present