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charly klema

@charlyklema

Full-Stack Developer building e-commerce applications, including HYPNOTIKA’s payment integration and transactional stock reservation.

Argentina

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I developed HYPNOTIKA individually, building its e-commerce application across the frontend, backend, database, and external integrations. I implemented Mercado Pago payments and transactional stock reservations to prevent overselling during checkout.

On TIENDAS LOCALES, I contributed to a platform and PWA for small businesses, including real-time chat, notifications, and product management. I also developed LOCANJEAMOS, a PWA for exchanging items, with product matching and real-time chat.

Experience

Work history, roles, and key accomplishments

Full-Stack Developer

Tiendas Locales

Jan 2023 - Dec 2024 (1 year 11 months)

Developed a web platform and PWA for small businesses with e-commerce functionality, real-time communication, notifications, and product management.

React Redux JavaScript NodeJS ExpressJS PostgreSQL Sequelize WebSockets Socket.IO JWT Auth0 HTML5 CSS

Full-Stack Teaching Assistant

Henry Bootcamp

Oct 2023 - Dec 2023 (2 months)

Coordinated student groups, resolved technical questions, and supported pair programming sessions.

Full-Stack Developer

Locanjeamos

Jan 2023 - Dec 2023 (11 months)

Developed a SPA and PWA for item exchange between users, including product matching, real-time chat, and notifications.

React Redux JavaScript NodeJS ExpressJS PostgreSQL WebSockets Socket.IO

Full-Stack Developer

Hypnotika

Jan 2026 - Present (10 months)

Developed an e-commerce platform for clothing and accessories, handling end-to-end design and development including frontend, backend, database, and external integrations.