Available for work

Hi, I'm
Cristian

Senior Full Stack & AI Engineer based in Timișoara, Romania. I own the full delivery lifecycle — from requirements and architecture to deployment and production monitoring.

Requirements → Architecture → Development → Testing → Deployment → Monitoring
View my work Get in touch
11+
Years experience
12
Freelance projects
3
Own apps built
Cristian Popa
🇷🇴
Timișoara, Romania
CET · Open to remote work
What I do

Services

Full-Stack Development

End-to-end web and mobile applications — from database design and API architecture to pixel-perfect UI. Including cross-platform mobile apps, system integrations, third-party APIs, and connecting services into cohesive, reliable products.

AI Integration & Development

Building AI-centric products from the ground up, or weaving AI capabilities into your existing software. LLM integration, intelligent automation, and practical AI features that deliver real business value.

Technical Consulting

Architecture reviews, code audits, and pragmatic technical guidance. Helping European teams make confident technical decisions — and avoid costly mistakes.

Portfolio

Selected work

All projects →
MedScan AI screenshot
Coming Soon
Agentic AI React LLM
MedScan AI — Intelligent Medical Records Platform

A platform for businesses such as malpractice law agencies to process bulk patient medical records through an agentic AI pipeline — producing preliminary estimations of case viability and likely outcomes.

Coming soon
MedRecordAI app screenshot
Waitlist
React Native Local LLM On-device AI
MedRecordAI — Private AI Health Records

A mobile app that stores your personal and family medical records entirely on-device, with powerful AI-powered search driven by a local micro LLM — zero data leaves your phone.

In development
ConformAI screenshot
Waitlist
AI / LLM React
ConformAI — Romanian Law Compliance Tracker

A compliance tool for Romanian SMBs that monitors national and local legislation in real time, instantly alerting businesses to changes they need to act on — before they become a liability.

In development
Cristian Popa
About me

A bit about
who I am

I'm Cristian, a Senior Full Stack & AI Engineer with 11+ years of experience building production-grade software for European clients — primarily in Germany. I hold a BSc in Computer Science from West University of Timisoara.

My career spans large-scale e-commerce (Mercedes-Benz, Eppendorf AG), AI-driven automation pipelines (Wernsing Order AI), precious metals digital platforms (Tradium), and mobile apps (Tazz). I'm comfortable owning entire workstreams — from API design and database architecture to AWS deployment and on-call maintenance.

Recently I've been focused on LLM-powered pipelines and multi-tenant AI products, integrating OpenAI, Llama and orchestration tools like Mastra and N8N into real production environments.

Stack & tools
Spring Boot Java React TypeScript Vue / Nuxt React Native PostgreSQL AWS Docker Kubernetes SAP Commerce Mastra OpenAI / LLMs
“
Not only was he always there to get things done and improve the services we were responsible for, but he was also dedicated to doing it right. You could entrust him with a task and he would gather the necessary information from various sources in order to solve it. I would work with him again anytime.
Dr. Richard Kolodziej
Product Owner · Mercedes-Benz.io
Get in touch

Let's work
together

Open to full-stack engineering projects, short or long-term. Building a product, need extra hands, or just want to say hi? Let's talk.

cristian.popa.dev@proton.me
github.com/cpopa3