About Me

Welcome to StackedStats! I’m Sandro, a software engineer with a passion for building reliable, scalable systems and sharing knowledge with the tech community.

What I Do

I specialize in backend development, data engineering, and infrastructure automation. My work involves designing and implementing systems that process large amounts of data efficiently and reliably.

When I’m not writing code for work, you’ll find me:

  • Tinkering with my home lab - Running self-hosted services, experimenting with NixOS, and automating everything possible
  • Learning new technologies - Currently exploring Rust and distributed systems
  • Writing about what I learn - Hence this blog!

About This Blog

StackedStats is where I document my technical journey. I write about:

  • Programming tutorials - Deep dives into Python, Go, and other languages
  • Data engineering - Building data pipelines, working with databases, and data analysis
  • Home lab adventures - Self-hosting, infrastructure, and automation
  • Best practices - Software architecture, testing, and development workflows

My goal is to write the articles I wish I had found when learning these topics myself. I believe in practical, hands-on explanations with real-world examples.

Get in Touch

I’m always happy to connect with fellow developers and tech enthusiasts. Feel free to reach out through any of the social links, or drop me an email if you have questions or just want to chat about tech!

Experience

Senior Consultant

Machine Learning Reply

3 months

  • Stabilized and modernized an AI-assisted manufacturing quality-reporting application by refactoring fragile code, improving cloud infrastructure, introducing containerized deployment, and strengthening CI/CD automation across environments.
  • Worked with stakeholders to shape the architecture of enterprise AI and platform solutions, helping early-stage concepts mature into reliable production implementations.
  • Co-developed the architecture and implementation direction of an internal enterprise AI workflow platform designed for governed, repeatable customer deployment.
  • Conducts technical interviews and mentors colleagues through structured knowledge sharing across the engineering practice.

Consultant

Machine Learning Reply

3 years 1 month

  • Served as technical lead on an internal AI platform initiative, leading the team in shaping its architecture and implementation direction.
  • Built and improved enterprise customer solutions across data engineering, machine learning, and cloud infrastructure, combining hands-on implementation with close client collaboration.
  • Contributed to internal engineering-quality initiatives that improved development practices and code quality across the consulting practice.
  • Supported proposal work by helping shape technical solution approaches for new client engagements.

Associate Consultant

b.telligent

1 year 2 months

  • Served as a core developer of an internal machine learning deployment framework, building key functionality and helping teams adopt, deploy, and use it effectively.
  • Operated and improved more than 150 analytical applications across on-premises and cloud environments, including their migration to Azure.
  • Built predictive models and recommendation logic to improve customer interaction strategies, including hotline prediction and tariff recommendations.

Education

Master of Science in Physics

Freie Universität Berlin

Focused on statistical physics and computational methods, completing a master’s thesis on Mg2+-dependent RNA folding using molecular-dynamics simulations and Markov models.

Bachelor of Science in Physics

Freie Universität Berlin

Focused on solid-state physics, completing a bachelor’s thesis on the UV-induced switching behavior of thiazole-diarylethene molecules on surfaces using photoelectron spectroscopy.

Skills

Programming

Python JavaScript Bash

Machine Learning & Data Science

Statistical Analysis Time Series Forecasting Classification Models Recommendation Systems Feature Engineering

Cloud Platforms

Microsoft Azure Amazon Web Services (AWS)

Infrastructure & Containerization

Terraform Ansible Docker Docker Compose Nginx Traefik

Version Control & CI/CD

Git GitHub GitLab Azure DevOps GitHub Actions

Markup & Documentation

HTML CSS Markdown LaTeX

Certificates

Azure Developer Associate

Microsoft

Earned: Feb 2024 | Expires: Feb 2027

Verify

Azure Fundamentals

Microsoft

Earned: Nov 2023

Verify

Languages

German C2
English C1
Polish B2
Spanish A1