Андрій

ANDRII SHPONTAK
F U L L - S T A C K D E V E L O P E R

CONTACTS ABOUT ME
I'm a full-stack developer with strong expertise in JavaScript,
[open contact info](look above in the "contact info" section)
TypeScript, and modern web, and server technologies. My core
(Telegram)
skills include:
[open contact info](look above in the "contact info" section)
Frontend: React, Redux, Zustand, HTML, CSS
Backend: Node.js, Nest.js, PostgreSQL, TypeORM
GitHub
Infrastructure & DevOps: Docker, Linux
LinkedIn Blockchain & Web3: Experience working with blockchain
technologies and smart contracts
High-load systems: Proven experience developing and
COMPETENCIES maintaining applications with 5M+ users
Soft skills: Team player, experience with Scrum/Kanban, strong
HTML
problem-solving skills, ability to analyze business requirements
CSS/SASS(SCSS) and support team members.
JavaScript Currently, I am focused on deepening my expertise in these
TypeScript technologies and exploring new ones to continue growing as a
React full-stack developer.

Redux/Redux Toolkit
EXPERIANCE
Nest.js / Node.js
PostgreSQL
CURRENT
September 2024 – Present
TypeORM (6 months)
Docker Fullstack Developer at COWCHAIN
Linux I have worked on a diverse range of tasks and
contributed to the development, maintenance,

LANGUAGES and refactoring of 7+ projects within various
teams. These projects have spanned different
English - intermediate
domains, from Telegram mini-apps to ICO
Ukrainian - native speaker
websites.
I have also been involved in high-load
applications, where performance optimization
was critical

PREVIOUS EXPERIENCE
March 2023 - September 2024
(1.5 years)
 WORK EXPERIANCE
PETSLIFE (NDA) AI-Consolidation (NDA)
Project Overview: A web application requiring
user authentication to manage pets, schedule vet Tech Stack: React, Docker, TypeScript, React-router,
appointments, and share photos in a social feed. Rest API, Axios, Formik & Yup, SASS, Firebase,
OpenAI, Express, node-telegram-bot-api, Puppeteer
Tech Stack: React, TypeScript, React-router, MUI,
(with plugins), Sharp, Winston, Xvfb.
Recoil, Rest API, GA-4, Axios, Formik & Yup,
Additional Services: MidJourney.
Firebase, i18next, SASS.
Key Responsibilities:
Discussed application flow, server interaction, and
Key Responsibilities: styling.
Collaborated in a team environment, conducting Developed both client and server sides of the
and reviewing pull requests. project.
Added new pages and fixed bugs across all Configured complex Docker files, Docker-
platforms. compose, and shell scripts for deploying the dev
Configured routes, including route guards for version on the server.
Implemented REST API endpoints.
secure navigation.
Prepared and handled requests to ChatGPT API.
Managed Axios interceptors, ensuring smooth Configured prompts for image generation using
access/refresh token flow for optimal UX. MidJourney.
Developed and validated forms, implementing Set up scraping processes with Puppeteer.
regex for input validation. Bypassed web protections (ReCaptcha &
Integrated and customized a fullscreen gallery Cloudflare) using automated scripts.
using React-zoom-pan-pinch and React-slick. Captured and logged errors across both frontend
Implemented infinite scroll for seamless content and backend using Winston.
loading where needed.
Connected Google Analytics (React-ga4) for user
behavior tracking. AI-Library (NDA)
Utilized React-error-boundary for error handling
and @material-ui/pickers & date-fns & dayjs for Tech Stack: Express, Docker, node-telegram-bot-
calendar and time management. api, Puppeteer (with plugins), https-proxy-agent.

Key Responsibilities:
Discussed application flow and design.
Quick Appointment (Web Version of Mobile Resolved issues related to bypassing CAPTCHA
App) and Cloudflare protections with Puppeteer.
Project Overview: A web application for Configured Docker files, Docker-compose, and
scheduling and managing appointments between shell scripts for deployment.
clients and experts.
Tech Stack: React, Docker, TypeScript, React-
router, Recoil, Rest API, Axios, Formik & Yup,
SASS.
BotScheduler (NDA)

Tech Stack: node-telegram-bot-api, node-cron,
Key Responsibilities: Puppeteer, Docker.
Discussed application flow, server interaction,
and styling. Key Responsibilities:
Established project architecture from scratch. Discussed application flow.
Set up Docker and Docker-compose, including Configured Telegram bot for managing and
shell scripts for deploying the dev version on the canceling events for different users.
server. Scheduled and executed Puppeteer tasks at
Configured routing, including route guards for specified times with required parameters.
Resolved issues with bypassing CAPTCHA and
secure navigation.
Cloudflare protections using Puppeteer.
Managed Axios interceptors to ensure proper
Configured Docker files, Docker-compose, and
access/refresh token flow. shell scripts for deployment.
Developed and validated forms.
Handled date and time operations across
different time zones. April 2021 – March 2023 (2 years)
Worked as a freelance developer on multiple
projects, including team-based collaborations.