Idorenyin

Williams Idorenyin
Frontend Software Engineer
Kyiv, Remote
Email: [открыть контакты](см. выше в блоке «контактная информация»)
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Professional Summary
Frontend Software Engineer with over 4+ years of hands-on experience in React.js, TypeScript,
and JavaScript development. Specialized in building scalable administrative interfaces and
support tools serving thousands of concurrent users. Proven expertise in implementing
automated testing frameworks and optimizing application performance. Demonstrated success
in cross-functional team collaboration and delivering high-quality frontend solutions.

Technical Skills
- Frontend Development: React.js, TypeScript, JavaScript (ES6+), HTML5, CSS3, Next.js
- Testing Tools: Jest, React Testing Library, Enzyme, Unit Testing, Integration Testing
- UI/UX: Material UI, Tailwind CSS, Styled Components, Responsive Design, Web Accessibility
- Backend Technologies: Node.js, Express.js, RESTful APIs, GraphQL, WebSocket
- Databases & Cloud: MongoDB, PostgreSQL, AWS, Azure
- Development Tools: Git, GitHub, GitLab, CI/CD, Webpack, npm, yarn

Professional Experience
Frontend Software Engineer | Carter Consulting Ltd | Remote
December 2022 - Present
- Engineered mission-critical administrative applications using React.js and TypeScript
- Implemented comprehensive unit testing using Jest and React Testing Library
- Developed reusable component libraries adhering to TypeScript best practices
- Optimized application load time by 40% through code splitting and lazy loading
- Collaborated with UX designers to implement responsive, accessible interfaces

Frontend Software Engineer | Dataphyte | Remote
March 2023 - December 2023
- Architected data-visualization dashboards using React.js, TypeScript, and D3.js
- Built scalable frontend infrastructure supporting real-time data updates
- Implemented automated testing protocols achieving 85% code coverage
- Reduced application bundle size by 40% through optimization techniques
- Established TypeScript coding standards and best practices
React Developer | Punch Digital | Remote
August 2022 - March 2023
- Developed administrative interfaces using React.js and TypeScript
- Built real-time data synchronization features using WebSocket technology
- Created and maintained comprehensive test suites using Jest
- Collaborated with backend engineers on API design and implementation
- Implemented responsive designs for cross-browser compatibility

Frontend Engineer | Trusted Transfers | Remote (UK)
December 2021 - October 2022
- Reduced bug reports by 30% through automated testing implementation
- Built reusable React components and custom hooks using TypeScript
- Developed accessible user interfaces following WCAG guidelines
- Increased user engagement metrics by 20% through UI/UX improvements
- Collaborated with product team on feature specifications and implementation

Education & Certifications
- Bachelor of Science, Electrical Electronics Engineering
Maritime Academy of Nigeria, Oron, 2017
- ALX Software Engineering Program, 2022
Focus: Frontend Development, Software Architecture

Key Achievements
- Performance Optimization: Improved application performance by 40% through frontend
optimization
- Quality Assurance: Reduced bug reports by 30% through automated testing implementation
- Team Collaboration: Successfully managed projects across multiple time zones
- Development Efficiency: Consistently delivered projects ahead of schedule while maintaining
code quality

Languages
- English: Professional working proficiency