Павло

PAVEL YASENKO
Frontend / Full-stack Developer
Phone: [відкрити контакти](див. вище в блоці «контактна інформація») • Email: [відкрити контакти](див. вище в блоці «контактна інформація»)
GitHub: github.com/pavelyasenko

ABOUT ME
Frontend-focused developer with practical experience in React, TypeScript and JavaScript, plus backend development with
Node.js and Express. I build web and mobile applications, integrate REST APIs, work with databases and authentication, debug
existing code and refactor large components. I am looking for a Junior / Junior+ role where I can contribute to real product tasks
and continue growing as a developer.

CORE SKILLS
Frontend: React, TypeScript, JavaScript, HTML5, CSS3, Tailwind CSS, Vite
Backend: Node.js, Express.js, REST API, JWT, bcrypt
Database: PostgreSQL, Prisma ORM
Mobile: React Native, Expo, Expo Router
Tools & deployment: Git, GitHub, npm, Vercel, Android/iOS build and debugging
Other: Responsive UI, forms and validation, localization/i18n, third-party API integration, debugging, refactoring
AI development: Gemini API integration, AI-assisted development, model fallback/retry logic, API/quota error handling

PRACTICAL EXPERIENCE
• Developed responsive web interfaces with React, TypeScript and reusable component architecture.
• Implemented frontend-to-backend integration through REST APIs, including loading/error states, forms and validation.
• Built backend functionality with Node.js/Express, including API endpoints, JWT authentication and password hashing.
• Worked with PostgreSQL through Prisma ORM and implemented database-backed application features.
• Integrated external APIs and AI services, including generation flows, retries, fallbacks and API error handling.
• Developed and refactored React Native/Expo mobile screens, navigation, settings, statistics, transaction-related UI and
localization.
• Worked with existing codebases: bug fixing, TypeScript/runtime troubleshooting, UI corrections and splitting large components
into maintainable modules.
• Worked with Android and iOS native builds and resolved environment, Gradle/Xcode and release-build issues.
• Use Git/GitHub and AI development tools as part of the development workflow, while reviewing and testing the resulting code.

PROJECTS
Several practical/pet projects covering full web and mobile development. Some source code is not public, but working versions can
be provided for review on request.
• Full-stack web application: React/TypeScript frontend, Node.js/Express backend, PostgreSQL/Prisma, JWT authentication and
external API integrations.
• React Native/Expo mobile application with multiple screens, reusable UI, navigation, API services, localization and iOS/Android
adaptation.
• AI-powered functionality using Gemini APIs, including content generation and resilient fallback/error-handling logic.

WHAT I CAN DO
• Turn UI requirements/designs into responsive interfaces.
• Connect frontend applications to REST APIs and troubleshoot integration problems.
• Implement basic backend endpoints, authentication and database operations.
• Read unfamiliar code, find bugs and make targeted fixes/refactors.
• Learn new libraries and technologies quickly when a project requires them.

LANGUAGES
Ukrainian — fluent
English — A2; currently taking courses and actively improving technical and conversational English

EDUCATION
[Add university / college / courses if applicable]