Cristian Dragoi
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Nearly 20 years of experience building backend systems, data pipelines, and machine learning solutions in Python.

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What I Do

Comprehensive Python development services spanning backend systems, data engineering, ML/AI and cloud infrastructure.

Backend & APIs

  • Python, Flask, FastAPI, Django
  • Microservices architecture and REST/GraphQL APIs
  • SQLAlchemy ORM and Redis caching
  • Test‑Driven Development (pytest, unittest)

Data & ML/AI

  • ETL with Pandas, NumPy, PySpark
  • TensorFlow, PyTorch, transformers
  • RAG with Qdrant and Elasticsearch
  • NLP, Computer Vision, Multimodal LLM systems

Cloud & DevOps

  • AWS (EC2, Lambda, S3, RDS, EKS, ECR)
  • Azure Functions, Cosmos DB
  • Docker & Kubernetes, GitHub Actions CI/CD
  • Monitoring with Grafana and Prometheus

Professional Experience

Nearly two decades of Python development across startups and established companies.

Deepgram – Python ML/AI Software Engineer

Sep 2022 – Present, Remote
  • Focus on NLP, Computer Vision and Multimodal LLM.
  • Implemented RAG with Qdrant + Elasticsearch, improving accuracy from 87% to 96%.
  • Built Azure event‑driven data pipelines with Blob Storage and Databricks.

Computools – Python Developer

2018 – 2022, Remote
  • REST APIs with FastAPI and Python.
  • PostgreSQL/MongoDB with Redis caching and ETL.
  • AWS deployments, CI/CD, Kubernetes and Generative‑AI projects.

LOOMA GmbH – Python Full‑Stack Developer with ML/AI

2012 – 2018, Germany
  • SOA backends with Flask/FastAPI, ETL pipelines and SDKs.
  • RAG systems, Redis cache, AWS SAM, Lambda, Fargate, EKS/ECR.
  • Monitoring with Grafana and Prometheus.

Earlier roles

Arolla, Netcompany, SIVECO (web apps with Django/React, OOP, SOLID, data pipelines, APIs).

Tech Stack

Languages

Python C/C++ JavaScript TypeScript Rust

Frameworks

Flask FastAPI Django React Angular TensorFlow Keras PyTorch

Databases

PostgreSQL MySQL MongoDB DynamoDB Redis Azure Cosmos DB

Tools & Cloud

Docker Kubernetes GitHub Actions AWS Azure

About Me

I am a Python engineer focused on solving complex problems through clean architecture, efficient algorithms and production‑ready systems.

With nearly 20 years of experience, I build high‑performance APIs, data pipelines and ML systems that deliver measurable business impact.

Location: Leipzig, Germany.

Availability: Open to remote and hybrid opportunities.

Contact Me