Yevhen

Yevhen Vasylyk
Senior React Native / Frontend Engineer
Senior React Native / Frontend Engineer with 5+ years of experience building scalable web and mobile applications using
React, React Native and Next.js. Proficient in TypeScript, Redux Toolkit, clean architectural patterns such as DDD and event-
driven design. Experienced across healthcare, logistics, fintech, real estate, HR Tech and media products. Strong
background in secure communication tools, payment integrations, offline-first architecture, real-time systems, responsive UI
development and AI-assisted engineering workflows.

ENGLISH WORK EXPERIENCE

Upper-intermediate Senior React Native Engineer — Chowdeck
2025
2025 –– Present
Present •• Logistics
Logistics // FinTech
FinTech//Delivery
Delivery
EDUCATION Product:
Product: Food delivery, rider operations, wallet and Relay delivery platform used by customers,
Chowdeck combines food delivery, rider management, a digital wallet, and Relay logistics into one platform serving
Bachelor’s in Law vendors and riders.
customers, vendors, and riders alike
Carpathian Institute of Entrepreneurship
TechStack:
Tech Stack:React
ReactNative,
Native,TypeScript,
TypeScript,Redux
ReduxToolkit,
Toolkit,React
ReactQuery,
Query,Zustand,
Zustand,Supabase,
Supabase,Firebase,
Firebase,
WebSocket,Stripe,
WebSocket, Stripe,PayPal,
PayPal,REST
RESTAPI,
API,GitHub
GitHubActions
Actions
PROFESSIONAL HIGHLIGHTS
Responsibilities
5+ years commercial experience
Designed and
and implemented
implemented rider
rider and
and customer-facing
customer-facing mobile
mobile features.
features.
React Native and React development Designed
Built Relay
Relay delivery
delivery workflows
workflows including
including Pay
Pay on
on Delivery.
Delivery.
Mobile and web products from scratch Built
Developed Instant
Instant Settlement
Settlement functionality
functionality and
and wallet-related
wallet-related user
user flows.
flows.
Healthcare, logistics, fintech, real estate Developed
and media Integrated payment
Integrated payment providers
providers and
and backend
backend services.
services.
Offline-first architecture Improved reusable
Improved reusable component
component structure
structure and
and application
application architecture.
architecture.
Secure video/audio communication Collaborated with product managers, designers, backend engineers and
Collaborated with product managers, designers, backend engineers and QA.
QA.
Payment integrations Reviewed pull
Reviewed pull requests
requests and
and helped
helped maintain
maintain engineering
engineering standards.
standards.
Code reviews and feature ownership Achievements
AI-assisted debugging and refactoring Delivered production
production features
features for
for rider
rider and
and customer
customer applications.
applications.
Delivered
Reduced feature delivery time through reusable UI and shared logic.
Reduced feature delivery time through reusable UI and shared logic.
CORE SKILLS
Improved stability
Improved stability of
of payment
payment and
and settlement-related
settlement-related flows.
flows.
Languages
JavaScript TypeScript HTML React Native Software Engineer — Ericsson Connected Operations
CSS/SCSS Swift Kotlin 2025 • Enterprise / Operations / Mobile

Project: Enterprise mobile solution for connected field operations, real-time communication, secure
Frontend
document handling and offline access.
React React Native Next.js
Tech Stack: React Native, TypeScript, MMKV, Realm, Chimera SDK, WebSocket, Redux, Jest, GitLab CI,
Redux Toolkit React Query Zustand
REST API

Mobile
Responsibilities
MMKV Realm Native Modules Gathered business requirements and translated them into functional specifications.
Deep Linking Push Notifications Designed and implemented complex React Native features using TypeScript.
Built offline-first architecture with local storage and synchronization flows.
Integrations Developed secure real-time communication using WebSocket and Chimera SDK.
REST API GraphQL WebSocket Implemented document management and secure file sharing features.

Firebase Supabase Stripe PayPal Performed code reviews and supported engineering best practices.
Used Amazon Q, Claude and Kiro to accelerate debugging, refactoring and documentation.
Agora Google Maps LiqPay Socket.io
Achievements
Tools / DevOps Improved reliability of offline synchronization flows.
Git GitHub Actions GitLab CI CircleCI Reduced implementation time using AI-assisted engineering workflows.

Fastlane Vercel AWS Docker
Improved maintainability of mobile modules.

Architecture
Frontend Developer
Frontend Developer —
— NDA
New Project
Clean Architecture DDD Event-Driven
Jan 2025 – Jun 2025 • Media & Entertainment • US Client, startup led by experienced founders with a history of
successful ventures
AI EXPERIENCE
A specialized social media and video-sharing platform designed to serve the firearm community by
Claude Code integrating key features of YouTube and Facebook while prioritizing user security. It enables content
sharing, community interaction, and commerce, catering exclusively to users over 18 with a valid
GitHub Copilot
firearms license.
Amazon Q
Cursor Tech Stack: React, Redux Toolkit, TypeScript, REST API, AWS, Event-Driven Architecture
Kiro

Prompt Engineering Responsibilities
AI-assisted refactoring Developed scalable front-end components using React and Redux.
Documentation generation Collaborated with back-end team on integration using REST APIs and event-driven workflows.
Ensured user experience responsiveness across web and mobile interfaces.
PERSONAL SKILLS Built secure and reusable UI flows for content, community and commerce features.

Polite Achievements
Proactive contributor Delivered core UI functionality for a security-focused media platform.
Good communication skills Improved maintainability through reusable React components.
Team cooperation

INDUSTRIES Frontend / Mobile Developer — Med-atlant
Dec 2022 – Nov 2024 • Healthcare • Ukrainian medical laboratory network operating across the country • Team
Healthcare • FinTech • Logistics • Real size: 5 people
Estate • HR Tech • Media & Entertainment • Med-atlant is an iOS/Android telemedicine app for scheduling doctor appointments, video/audio
Med-atlant is an iOS/Android telemedicine app for scheduling and co-paying video/audio calls.
E-commerce • Fitness calls and payments

Tech Stack: React Native, Redux Toolkit, TypeScript, Agora, Firebase, REST API, Socket.io, Push
Notifications

Responsibilities
Developed the UI for patient and doctor-side apps using React Native.
Integrated secure calling features with Agora.
Ensured HIPAA-compliant interface design.
Implemented appointment scheduling and healthcare user flows.
Integrated backend APIs, Firebase and notification flows.

Achievements
Delivered production-ready healthcare mobile features.
Improved UX consistency across patient and doctor flows.

Frontend / Mobile Developer — Dmspa
Dec 2022 – Nov 2024 • Medical Logistics
Medical logistics app for drivers and patient nurses. Built app from scratch with real- time geolocation
Medical
and logistics
procedure app for drivers and patient nurses.
tracking.

Tech Stack: React Native, Redux Toolkit, REST API, Socket.io, Firebase, Geolocation

Responsibilities
Built app from scratch with real-time geolocation and procedure tracking.
Implemented mobile flows for drivers and medical staff.
Integrated real-time updates and tracking-related APIs.

Achievements
Delivered core logistics functionality from scratch.

Frontend Developer — E-Test
Dec 2022 – Nov 2024 • Product Comparison • New York company serving thousands of clients • Team size: 14
people

Product comparison website.
Product comparison website. Implemented product listing and filtering

components.

Tech Stack: React, Redux Toolkit, TypeScript, REST API, SCSS

Responsibilities
Implemented product listing and filtering components.
Built responsive UI for comparison and product discovery flows.
Collaborated with management, BA, QA and backend teams.
Achievements
Improved product search and comparison experience.

Frontend Developer
Frontend Developer —
— PHR
PHR // Physicians
Physicians for
for Human
Human Rights
Rights
Dec 2022 – Nov 2024 • Protection Platform • Global charity organization with 20+ years of experience
supporting millions of people • Team size: 8 people

Physicians for Human
Protection platform forRights
sexual(PHR) mobilizes
violence doctors, scientists, and other health professionals
survivors.
to investigate and document human rights abuses around the world.
Tech Stack: React, React Native, Redux Toolkit, Agora, REST API, SCSS, Socket.io, Firebase

Responsibilities
Built responsive user-facing interfaces from scratch using React.
Implemented secure video/audio modules and scheduling tools.

Supported sensitive workflows with a focus on security, accessibility and usability.

Achievements
Delivered secure user-facing interfaces for a socially important protection platform.

Frontend / Mobile Developer — Valte
Jun 2021 – Dec 2022 • Real Estate • Major Australian real estate company with strong market presence • Team
size: 20+ people

Real estate agency platform for sale/rental, also a portfolio management, data aggregation and
transaction management tool for commercial property.

Tech Stack: React, React Native, Next.js, TypeScript, Firebase, React Query, Redux Toolkit, REST API,
SEO

Responsibilities
Developed the dashboard UI and search/filter functionality with React.
Built reusable UI components for real estate portfolio and transaction flows.
Improved frontend performance and dashboard usability.
Integrated APIs and data aggregation flows.

Achievements
Improved property search and filtering experience.
Supported commercial property transaction management workflows.

Frontend / Mobile Developer — Grownu
Jun 2021 – Dec 2022 • HR Tech • Lithuania-based startup company specializing in software • Team size: 3
people

The Grownu APP allows to manage employees from anywhere — while in the office or on the go. The
app interface is user-friendly, making it easy to learn and use for all employees in your company. User
can utilize Grownu digital time tracking and logging system to grow your company.

Tech Stack: React, React Native, Next.js, TypeScript, Firebase, REST API

Responsibilities
Built responsive tracking interface and user management features.
Implemented employee management and time tracking flows.
Worked in a small startup team with direct feature ownership.
Achievements
Delivered user-friendly HR management features for mobile and web usage.

Frontend / Mobile Developer — Nutrition
Jun 2021 – Dec 2022 • Fitness / Nutrition • UK startup led by a team with a history of successfully launching
multiple companies • Team size: 5 people

A nutrition mobile app helps users track their food intake, monitor their nutritional intake, and manage
and
intake,
nutritional
their
monitor
intake,
food
their
track
users
helps
app
mobile
nutrition
A
their diet. The app includes features like calorie tracking, macro tracking, recipe suggestions, and
recipe
tracking,
macro
tracking,
calorie
like
features
includes
app
The
diet.
their
manage
personalized meal plans.
plans.
meal
personalized
and
suggestions,
Tech Stack: React Native, Next.js, TypeScript, Firebase, Stripe, REST API

Responsibilities
Designed mobile UI and payment integration using Stripe.
Built food tracking, recipe and personalized plan user flows.
Integrated payment and subscription-related functionality.

Achievements
Delivered monetization and nutrition tracking UI features.

Dedicated / StarApps — Additional Projects
Additional experience

New project — Medical logistics app for drivers and patient nurses. Built app from scratch with real-
time geolocation and procedure tracking.

E-Test — Product comparison website. Implemented product listing and filtering components.

New Project — Nutrition mobile app helping users track food intake, monitor nutrition and manage
diet with calorie tracking, macro tracking, recipe suggestions and personalized meal plans.