---
title: 'About: full-stack developer in Ioannina · Dimitrios Rarras'
description: 'Full-stack developer in Ioannina, Greece: freelance since 2023, lead developer at Heartbeat Pharmacy and Komvos Ygeias. Work, volunteering, open source.'
lang: en
source: https://jimrarras.com/en/about/
fetched: '2026-10-03T12:38:27.000Z'
---

ABOUT

# Dimitrios Rarras

Full-stack developer in Ioannina, Greece. I build websites, online shops and software for businesses and healthcare institutions, from the first conversation to production, and I look after them afterwards.

![Dimitrios Rarras](https://jimrarras.com/images/profile-pic.webp)

- [LinkedIn](https://linkedin.com/in/jimrarras)

- [GitHub](https://github.com/jimrarras)

- [ORCID](https://orcid.org/0009-0003-8961-6206)

- [demetriosrarras@gmail.com](mailto:demetriosrarras@gmail.com)

- [CV (PDF)](https://jimrarras.com/RARRAS_DIMITRIOS_CV.pdf)

## What I do today

### Freelance full-stack developer

Since 2023 · Ioannina

Websites, online shops, integrations and custom software for businesses in Ioannina and across Greece: medical practices, a private citizen-services office, a WooCommerce shop, a locksmith network that orders B2B. Every project runs through Rorsa Platform, the CRM and client portal I built.

[Services](https://jimrarras.com/en/services/) · [Work](https://jimrarras.com/en/projects/) · [How I work](https://jimrarras.com/en/how-i-work/)

### Lead developer, Heartbeat Pharmacy

Since November 2024 · Ioannina

I designed and built the pharmacy's platform: the online shop, the catalogue system the staff use, and the service that keeps the shop's stock in line with the ERP in the store.

[The case study](https://jimrarras.com/en/projects/heartbeat-pharmacy/)

### Lead developer, Komvos Ygeias

Since its founding in April 2025 · Ioannina

Komvos Ygeias (Κόμβος Υγείας) provides home healthcare services. I built its website, where candidates send their CV directly, and its shop for medical equipment and health products, which sells to individuals and businesses.

[komvosygeias.gr](https://komvosygeias.gr) · [shop.komvosygeias.gr](https://shop.komvosygeias.gr)

## Volunteer work

### Zosimades Nursing Home of Ioannina

Three systems in daily use: the clinical platform with every resident's record, inventory management, and a stock-counting phone app that keeps working with no network. The new medication rounds come with the release that is ready to install.

[The case study](https://jimrarras.com/en/projects/zosimadon-healthcare-ops/)

### Ioannina University Hospital

An inventory program for the haematology department's molecular biology unit, which replaced an old system and works without a network.

[The case study](https://jimrarras.com/en/projects/pgni-storage/)

## Open source

Code from my projects that is publicly available on GitHub.

- [ACS Courier for WooCommerce](https://github.com/jimrarras/wc-acs-courier): Vouchers, pickup lists and tracking from the order screen, with pickup from ACS lockers and shops on a map.

- [BOX NOW for WooCommerce](https://github.com/jimrarras/wc-boxnow-delivery): A rewrite of BOX NOW's official integration, with locker choice at checkout, vouchers and tracking.

- [Piraeus Bank for WooCommerce](https://github.com/jimrarras/woo-payment-gateway-for-piraeus-bank): A fork I maintain, for card, Google Pay and IRIS payments through Piraeus Bank's Paycenter.

- [StorageManagement](https://github.com/jimrarras/StorageManagement): The code of the Ioannina University Hospital's inventory program.

## Writing

- [Real FHIR 4.0.1 in a Mobile Health App: Beyond the Marketing Claim](https://jimrarras.com/en/fhir-mobile-health-react-native-observation/)

- [Embedded MCP Servers in Production: AI Agents Inside Your TypeScript Backend](https://jimrarras.com/en/embedded-mcp-servers-production-typescript/)

- [Headless Commerce with Medusa.js: Why Heartbeat Pharmacy Didn't Go With Shopify Plus](https://jimrarras.com/en/headless-commerce-medusa-vs-shopify-plus/)

## Education

Integrated Master's in Electrical and Computer Engineering, University of Western Macedonia (2016-2022).

## What I work with

TypeScript · React 19 · Next.js 16 · Astro · Medusa.js · Node.js · PostgreSQL · Redis · TanStack Query · React Native