Open to opportunities

Anton Polishchuk

@antonpolishchuk

Full-Stack Software Developer @GAIN Tax · Building the AI-powered Tax Advisory Ecosystem · AI for Tax Research

Full-Stack Software Developer with 3+ years of commercial development experience. Strong frontend background in React, Next.js, and TypeScript, complemented by backend experience with Java/Spring Boot, Python/FastAPI, PostgreSQL, and AWS. Builds production SaaS features from UI and API integration to backend implementation and deployment, with a focus on usability and maintainable code

Experience

Work history, roles, and key accomplishments

Current

Full Stack Engineer

Current

GAIN Tax

Jan 2025 - Present (1 year 9 months)

Developed 30+ responsive production pages and reusable UI components for an AI-powered B2B SaaS platform using React, TypeScript, Next.js, JavaScript, and SCSS.

Built the frontend integration layer for 100+ REST endpoints, implementing authenticated requests, role-based access, data validation, file transfers, and reliable loading and error handling across the application.

Frontend Developer

Healthcare Startup (NDA)

Jun 2023 - Dec 2024 (1 year 6 months)

Developed React and TypeScript interfaces for a healthcare staffing platform serving hospitals and individuals seeking home-care professionals.

Integrated REST APIs for data fetching and form submissions, handling loading, error, and empty states.

Built and refactored reusable UI components to improve consistency and reduce duplicated code.