Anton

Anton Shaga
Moncton, Canada | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | GitHub | Linkedin | shaga.dev

About Me
Front-end Developer building React/Next.js apps with a production mindset. At WinWinTravel delivered complex
flows (Price Calendar), debugged backend-data issues, and improved UX/a11y across breakpoints. Strong in
TypeScript, Zustand/React Query, and clean modular architecture.

Core Skills
Frontend: HTML, CSS, JavaScript (ES6+), React, Next.js (App Router, SSR/ISR), TypeScript, Tailwind CSS, Chakra UI,
React Hook Form
State Management: Zustand, React Query, Immer
Backend / Full-stack: tRPC, Prisma, PostgreSQL, Redis, REST APIs, JWT, OAuth 2.0 (PKCE), 2FA, Zod
Security: Argon2, HttpOnly cookies, CSRF-safe flows, rate limiting, token revocation
Tools: Git, Vercel, Resend, Figma, ESLint, Prettier
Principles: Clean Architecture, Modularity, Performance, Accessibility (a11y)

Professional Experience

WinWinTravel — Front-end Developer

2025 August– Present · Remote

Developed and implemented real production features for a large-scale travel web product. Successfully followed
the complete enterprise development lifecycle: Jira → PR → Lead Code Review → Dev/Stage → QA → Release.

Key contributions:

Developed and optimized the Price Calendar Flow:
– isolated dynamic state (Zustand + React Query)
– built responsive mobile/desktop layouts
– implemented synchronized scroll/axis rendering
– created feature-driven calendar refresh logic

• Improved Offer Configuration UI: fixed incorrect highlights, hover states, and radio-group behavior.
• Investigated backend-level issues by tracing booking keys, detecting duplicate data, and identifying API
inconsistencies.
• Fixed accessibility issues, tooltip behavior, dropdown logic, and scroll synchronization across breakpoints.
• Produced clean, well-documented PRs that passed multi-stage reviews by two team leads.
• Followed FSD-style architecture, design tokens, kebab-case migration rules, and CI quality gates.

Impact:

• Increased stability of booking and configuration flows.
• Reduced UI misalignment issues on 1440px+ layouts.
• Improved reliability of calendar selection logic across dev/stage environments.
Featured Projects
Simple Shop — Full-Stack E-commerce
Live Demo | GitHub

Full-stack e-commerce application with product catalog, cart, checkout, and order history.
Backend handles data validation and transactional order creation, ensuring consistent pricing and reliable order
processing.
Tech: React, TypeScript, TanStack Router, TanStack Query, REST API, Node.js, Express, PostgreSQL

Modular Authentication System (Fullstack)
Live Demo | GitHub

Production-grade auth: email verification, OAuth (Google PKCE/GitHub), 2FA (TOTP/Email), session revocation, rate
limiting
JWT refresh flow with HttpOnly cookies; token auto-refresh via middleware
Tech: Next.js 15, TypeScript, tRPC, Prisma, PostgreSQL, Redis, Resend, Zod

Developer Portfolio (Frontend)
Live Demo | GitHub

Multilingual UI, theme system, responsive layout, optimized Lighthouse (100s)
Secure contact form + rate limiting
Tech: Next.js 15, React, TypeScript, Tailwind, Framer Motion, Redis

Certifications
Frontend Masters — Complete Intro to React v9 (Brian Holt), 2026

W3C – Verified Certificate: Introduction to Web Accessibility (WAIO.1x)

Previous Work Experience (Before IT)

Field Attendant — Berger Canada (2024–Present)
Responsibilities: safety-critical workflows, machinery operation, teamwork, reliability.

Industrial / Construction Electrician — EU & Ukraine (2006–2024)
Responsibilities: technical diagnostics, engineering standards, documentation, cross-team collaboration.

Additional Information
Languages:
• English — B1 - B2(actively improving)
• Ukrainian, Russian — Native

Open to:
• Remote work • Hybrid • Relocation (Canada / EU / Asia)