Contact information

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Work experience

Fullstack Developer

from 07.2025 to now (1 year)
Hatkom ApS, Дистанційно (IT)

- Engineered domain calculations of shipping emissions with financial-grade precision and reproducibility.
- Migrated business logic from SQL stored procedures to TypeScript + Prisma, making domain rules version-controlled, type-safe, and unit-testable.
- Built ingestion pipelines for logs and XLSX/CSV reports, using transactional Prisma writes and validation.
- Designed interactive visualizations using Highcharts, Nivo, and Mapbox GL, and produced branded client reports (PDF/XLSX) with exports.
- Integrated AWS services for operations: S3 uploads and CloudWatch logging with Winston.
- Designed a themeable UI system using Radix UI and Tailwind CSS, plus complex data grids with TanStack Table.
- Leveraged agentic engineering (Claude Code with custom agents and project conventions) to accelerate delivery and maintain code quality.
- Enforced engineering quality across the monorepo with Bun unit tests, and participated in code reviews to uphold codebase conventions.
- Conducted technical interviews for full-stack candidates.

Fullstack Developer

from 03.2025 to 04.2025 (2 months)
CGS Team, Дистанційно (IT)

- Built and maintained a backend using NestJS and PostgreSQL, powering an e-commerce experience.
- Designed and implemented RESTful APIs to handle everything from user auth to cart inventory and order workflows.
- Handled the development of the mobile app using React Native, ensuring solid integration with the backend services.

Front-end програміст

from 01.2025 to 02.2025 (2 months)
Freelance, Дистанційно (IT)

- Developed a multi-page static website for a religious organization using AstroJS, combining fast static generation with dynamic React components.
- Integrated form handling using react-hook-form and schema validation with Zod to ensure smooth user interactions.
- Styled the site with hand-written, responsive CSS for lightweight performance and clean aesthetics.

Front-end програміст

from 10.2024 to 12.2024 (3 months)
Crystal Clear, Дистанційно (IT)

- Developed and styled a responsive website for a cleaning services company using React.js and SCSS, delivering a user-friendly and visually appealing interface.
- Integrated Leaflet.js and GeoJSON to display interactive maps, utilizing Overpass Turbo for accurate geographical data retrieval.
- Conducted in-depth analysis of the Launch27 platform to craft a custom JSON payload for backend integration, creating a dynamic booking page for service scheduling.
- Enhanced project security by integrating Google reCAPTCHA, ensuring a smooth and secure user experience.
- Performed thorough code reviews to uphold code quality standards, and ensure project success.

Education

Бердянський державний педагогічний університет

ФМКТО, Цифрові технології, Бердянськ
Unfinished higher, from 2017 to 2021 (4 years)

Additional education and certificates

Mate academy, Full-Stack Developer (Full-Time)

2024, 4 місяці

Knowledge and skills

• TypeScript
• JavaScript
• React
• Next.js
• NestJS
• PostgreSQL
• REST API
• TanStack Query
• Swagger
• Prisma ORM
• Node.js
• Git
• GitHub
• Розробка SaaS-проєктів
• AI
• Docker

Language proficiencies

English — above average

Additional information

Telegram - https://t.me/hattori_kanto
GitHub - https://github.com/hattoriKanto
CV - https://drive.google.com/file/d/1sqVLfwEeKHezxPrgipa3i2wU0qX11clB/view?usp=drive_link