Open to opportunities

Konstantinos Karampinas

@konstantinoskarampin

Frontend engineer crafting high-performance React/Next.js UIs with TypeScript, clean architecture, and reliable testing.

Greece

Message

What I'm looking for

I’m looking for a role where I can build high-performance frontend features with TypeScript and strong architecture, collaborate closely with design/product and backend teams, and ship reliable experiences—backed by thoughtful testing and continuous improvements.

I’m a frontend engineer who develops, refactors, and optimizes production-ready features for high-traffic applications. At Datawise Data Engineering LLC, I owned core e-commerce flows for Cart, Checkout, Wallet, Invoices, and Quotes, including Stripe + 3DS authentication and transaction/PDF-email generation with MJML/Handlebars.

I migrated projects from JavaScript to TypeScript using Clean Architecture and structured state management (Redux, Zustand). I build component-driven architectures with SSR/SSG (Next.js), integrate APIs, and partner with designers, backend engineers, and product teams—backed by unit and end-to-end testing with Cypress for critical checkout and payment scenarios.

Experience

Work history, roles, and key accomplishments

Current

Frontend Engineer

Current

Datawise Data Engineering LLC

Sep 2021 - Present (4 years 9 months)

Developed and optimized frontend features for the Schumacher Base Warehouse e-commerce app, supporting high-traffic operations with thousands of daily requests. Owned Cart, Checkout, Wallet, Invoices, and Quotes workflows and migrated the codebase from JavaScript to TypeScript using Clean Architecture, Redux/Zustand, and Cypress-tested critical flows.

TypeScript React Redux Zustand Stripe Payments (3DS)Cypress Clean Architecture

Software Developer

Intracom Telecom / Ericsson

Jan 2021 - Aug 2021 (7 months)

Developed and maintained an internal enterprise configuration management system for Ericsson platforms, enabling creation and editing of versioned configurations. Built reusable React UI components and implemented complex configuration logic using a proprietary React-based framework with REST API integration on Express.js.

React API Integration Configuration Management UI Components Data Validation

Education

Degrees, certifications, and relevant coursework

University of Macedonia

BSc in Computer Science and Applied Informatics, Computer Science and Applied Informatics (Applied Informatics track)

2014 - 2021

Activities and societies: Diploma thesis: developed a Django (Python) hotel reservation system for browsing hotels, making bookings, and managing preferences; implemented dummy authentication, booking management, and admin interfaces; designed basic database models for room availability, user preferences, and reservations.

Completed a BSc in Computer Science and Applied Informatics (Applied Informatics track) at the University of Macedonia, including a diploma thesis on a Django-based hotel reservation system.