10/17/2026 updated

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Senior React.js Developer | Frontend Engineer | TypeScript & PWA Specialist

Kragujevac, Serbia
Worldwide
Frontend Program, ICT Cluster
Kragujevac, Serbia
Worldwide
Frontend Program, ICT Cluster

Profile attachments

Stevan_Stojanovic_Resume.pdf

StorybookTailwind CSSJavaScriptAtlassian JiraCascading Style Sheets (CSS)GitHubTypeScriptReact.jsFigmaFront End Software Development
React & TypeScript Development
Expertise in building scalable enterprise applications using React, React.js, and TypeScript. Authoring reusable component libraries with Storybook, KendoReact, and modern design system patterns, achieving significant reductions in feature delivery efforts and UI defects.

Frontend Architecture & State Management
Deep knowledge of frontend architecture patterns including Feature Driven Design, Redux, Context API, and TanStack Query. Design and implementation of maintainable, scalable UI solutions for international enterprise clients.

Progressive Web Apps & Performance Optimization
Specialization in Progressive Web Apps (PWA), bundle splitting, lazy loading, and rendering improvements. Implementation of modern frontend build optimizations resulting in measurable reductions in initial page load time and bundle size.

Accessibility (WCAG) Compliance
Elevation of WCAG compliance across multiple enterprise applications, achieving AA level for 100+ UI components and decreasing accessibility-related tickets by 70%.

End-to-End & Unit Testing
Adoption of comprehensive frontend testing methodologies including unit, integration, and E2E testing using Jest, React Testing Library, Cypress, and Mocha, leading to a 30% reduction in bug resolution time.

UI & Styling
Proficiency in SCSS, SASS, Styled Components, Tailwind CSS, Material UI, and KendoReact for building responsive and visually consistent user interfaces.

Tooling & Platforms
Hands-on experience with Webpack, Storybook, Git, CI/CD, JIRA, and Figma to support efficient development workflows and cross-team collaboration.

AI-Assisted Development Workflows
Automation of repetitive coding tasks and code review checks using AI tools, directly contributing to a 35% increase in developer productivity and faster feature delivery.

Agile/Scrum & Team Mentoring
Coordination of sprint planning and technical delivery for frontend teams, mentoring junior engineers on React best practices and code review standards, improving team onboarding efficiency.


Project history

Senior Software Engineer

TransPerfect
Orchestrated a UI team of four engineers, achieving a 25% reduction in UI defects. Engineered a Storybook-driven component library with React, TypeScript, and KendoReact, cutting feature delivery efforts by 30%. Pioneered frontend development standards for PR reviews, testing, and component architecture, achieving 95% code coverage. Elevated WCAG compliance across five enterprise applications. Automated coding tasks using AI, contributing to a 35% increase in developer productivity. Drove adoption of comprehensive frontend testing methodologies, reducing bug resolution time by 30%. Optimized frontend performance through bundle splitting and PWA best practices.

Frontend Engineer (Contract)

MONYTR
Architected enterprise frontend application structure from scratch using Feature Driven Design, reducing initial development time by 35%. Implemented robust token validation and session management. Integrated TanStack Query for server-state management, improving data consistency by 80%. Authored 30+ reusable React components with unit tests. Utilized and customized Shadcn UI components with Tailwind CSS, accelerating feature delivery by 50%.

Frontend Engineer (Contract)

LEVEL
Refactored frontend architecture to support V2 product redesign, achieving over 40% improvement in initial development speed. Developed configurable atomic UI components, reducing code duplication and accelerating new feature development by 50%. Created a Figma-to-Material UI theming plugin, reducing design/visual code review time by 60%. Participated in remote collaboration within distributed international engineering teams.

Frontend Consultant

Optum
Migrated component library from JavaScript to TypeScript, reducing bugs by 40% and saving 20% in development time. Coordinated sprint planning and technical delivery for a frontend team of 5 engineers. Designed and introduced reusable UI components using Kendo UI across 100+ enterprise applications. Optimized frontend performance by implementing scalable state management and asynchronous data-fetching patterns, achieving 40% improvement. Streamlined communication with remote international engineering teams, improving efficiency of 50+ frontend developers worldwide.

Software Engineer

TransPerfect
Forged 25+ distinct UI components in React and TypeScript, translating Figma designs into code, resulting in a 25% acceleration of the development cycle. Mentored 4 junior engineers on React best practices and code review standards. Reduced UI defects by 15% and improved application load times through frontend optimization techniques. Enhanced accessibility of 5+ enterprise applications to meet WCAG 2.1 AA compliance standards.

Frontend Developer

Emisia Consulting
Refactored legacy frontend codebases, improving readability and maintainability, resulting in a 25% reduction in post-refactor bug reports. Implemented modern frontend build optimizations, reducing initial page load time by 40% and bundle size by 30% through code splitting and lazy loading. Built responsive UI features and collaborated directly with stakeholders on product requirements.

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