DDev Labs
Available for freelance projects

Data Engineer & AI Expert

Zurich-Based

Building scalable data infrastructure, AI-powered recommendation systems, and cloud solutions that drive real business impact. Turning complex data challenges into measurable results and competitive advantages.

Schedule intro call → View projects

Freelancing Services

Paschalis Dimitriou - Data Engineer and AI Expert based in Zurich, Switzerland

I help startups, SMEs, and Fortune 500 companies turn data chaos into clarity—and AI possibilities into production-ready systems. Whether you're drowning in unstructured data or ready to build intelligent recommendations that scale, I bring 10+ years of engineering rigor to make it happen.

Data Engineering & ETL Pipelines

Process millions of records daily with robust data infrastructure

Snowflake Airflow dbt Meltano Apache Spark Real-time Streaming (Kafka) Data Quality Frameworks Data Cataloging (Amundsen)

Cloud Architecture & Cost Optimization

90% cost reduction achieved through serverless and scalable solutions

AWS (Lambda, ECS, Fargate, SageMaker) Docker Kubernetes CI/CD Pipelines Infrastructure as Code Auto-scaling Cost Monitoring

AI-Powered Recommendation Systems

Increase user engagement by 25-40% with personalized content delivery

LLMs (GPT, Claude) Collaborative Filtering Content-based Filtering Real-time Personalization A/B Testing User Behavior Modeling Semantic Search

Full-Stack Development & APIs

End-to-end solutions from backend to visualization

Python JavaScript/TypeScript FastAPI Node.js React PostgreSQL MongoDB Redis Looker Tableau Grafana

Product & Technical Leadership

Bridge business and technology with proven product management experience

Legacy Migration (150+ engineers) Data Mesh Architecture Cross-functional Team Leadership Agile/Scrum Technical Documentation

Ready to transform your data into competitive advantage?

$ _

Indie Projects

Asfalisou Online

Insurance and financial services platform.

Status: Live

Deep Law

AI-assisted legal document analysis.

Status: In development

Bedtime Stories

Interactive bedtime story generator for children.

Status: In development

Metaphr

AI-powered platform that transforms business data into intelligent automated workflows and assistants.

Status: Live

Goal Tracker

Personal goal tracking and progress monitoring application.

Status: Live

Projects Graveyard

B2B Content Platform

Turned LinkedIn profiles into tailored content and outreach to warm B2B leads, helping teams scale authentic engagement.

Status: Deprecated

e-reception

Front-desk and apartment management tool for small properties—visitor logs, bookings, and notices in one place.

Status: Deprecated

Cover Letter UI

Job application copilot that generated tailored cover letters from a resume and job post, speeding up applications and improving callbacks.

Status: Deprecated

Swiss News Portal

Swiss news aggregator curating top outlets with a clean reading experience and fast browsing.

Status: Deprecated

FAQ

  • What are your rates?
    Rates vary by project complexity. Contact me for a detailed quote based on your specific needs.
  • How quickly can we start?
    Typically within 1–2 weeks depending on scope and availability.
  • Do you work remotely?
    Yes, I work both on-site in Zurich/Switzerland and remotely with teams across Europe. Flexible communication across all time zones.
  • What's included in your deliverables?
    Clean code, documentation, deployment guides, and knowledge transfer sessions.