Data & Software Engineer @ Unit8

Patryk Chlanda

I build data platforms and AI systems that turn raw data into decisions people trust.

Previously at Artefact and Datadog. Trained at École des Mines de Saint-Étienne, with graduate coursework in AI at the University of Oslo. Polish‑French.

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01 — Where I've worked

Experience

  1. Mar 2026 — now Kraków, PL

    Data & Software Engineer · Unit8

    Swiss data & AI consultancy

    • Designing and building a medallion lakehouse on Azure Databricks with Unity Catalog — multiple source systems unified, bronze to gold, into one governed analytical layer.
    • Automated releases of dozens of pipelines across three environments (dev → qua → prod) with GitHub Actions and Databricks Asset Bundles, gated by tests and validation.
    • Built dbt models and orchestration jobs for timeseries analytics, plus live Databricks dashboards and Databricks Apps monitoring metrics and data quality for dozens of users.
    • Shipped a RAG knowledge assistant — specialised agents reaching internal data sources over MCP — used by dozens of people today and designed to scale to the whole company.
    Databricks dbt Terraform GitHub Actions Azure OpenAI MCP
  2. Sep 2023 — Mar 2026 Paris, FR

    Data Engineer · Artefact

    Global data & AI consultancy

    • Designed and ran a subscription data product serving 40+ enterprise clients and 500+ active users, on Azure infrastructure provisioned with Terraform.
    • Built ETL/ELT pipelines with Airflow and dbt processing millions of records a day, plus Kafka streaming for events that needed live processing.
    • Automated ingestion from 50+ APIs and databases (+70% collection efficiency) and a data-quality framework that cut incidents by 90%.
    • Integrated OpenAI-powered NLP features, with Langfuse for LLM observability and evals.
    • Raised the engineering bar through PR reviews, git hooks and CI-enforced testing — optimising for cost, scalability and security.
    Airflow dbt Kafka Azure BigQuery LangChain
  3. Apr — Sep 2023 Paris, FR

    Data Engineer Intern · Datadog

    Cloud observability platform

    • Built and optimised distributed, high-volume ETL pipelines with Spark (Scala) and Python (Luigi) on the Internal Analytics Core Data team.
    • Modelled and stored large datasets across AWS, GCP and Azure, with Snowflake and Kubernetes.
    Spark Scala Luigi Snowflake Kubernetes
  4. 2018 — 2023 Paris, FR

    Full-stack Engineer · Freelance

    • Built websites and web apps end-to-end for clients — Angular and Django fronts, Node and Python backends, custom APIs with Express and FastAPI.
    • Ran serverless infrastructure on AWS and GCP and owned delivery directly with clients.
    Angular Django Node.js FastAPI AWS
  5. Sep 2021 — Jul 2022 Aix-en-Provence, FR

    Data Science & Software Intern · Agrove

    Urban-farming startup

    • Trained and benchmarked AI models for urban-farming yield optimisation — 92% top-1 accuracy, deployed in the mobile app.
    • Built the FastAPI backend and React front of a plant-health scoring system, logging to PostgreSQL.
    TensorFlow FastAPI React PostgreSQL
02 — What I work with

Skills

Data platforms
Databricks Delta Lake Unity Catalog dbt Airflow Spark Kafka Snowflake BigQuery PostgreSQL
Cloud & DevOps
Azure GCP AWS Terraform Docker Kubernetes GitHub Actions
AI & LLMs
RAG & multi-agent systems MCP OpenAI API Claude & Anthropic API LangChain Langfuse & LLM evals Vector search & embeddings TensorFlow
Languages & web
Python SQL Scala TypeScript Swift Bash FastAPI Django React Angular
03 — Things I've built

Projects

AppAudioController

A macOS menu-bar app for per-app volume, 10-band EQ and audio routing — built entirely on public CoreAudio process-tap APIs. No kernel extensions, no private SPI.

Swift · macOS 14+

AES-128 in VHDL

The AES-128 decryption pipeline implemented in pure VHDL — the block cipher written for hardware, not just calling a library.

VHDL · cryptography

RFID Door Lock

An RFID-badge door-locking system on an STM32 microcontroller — bare-metal C with the HAL, hardware in the loop.

C · STM32
all repos on github.com/patiwwb →
04 — Where I learned it

Education & credentials

Education

École des Mines de Saint-Étienne

MSc, Computer Science & Executive Management · 2020 — 2023

Algorithms, machine learning, databases, graph theory — GPA 3.87 / 4.0.

University of Oslo

Graduate coursework, AI & Data Science · 2022

Deep learning & NLP, cloud computing, data-driven decision making.

Laureate — Fondation Georges Besse

National merit scholarship · 2021

Certifications

Claude Certified Architect

Anthropic · 2026

Microsoft Certified: Azure Fundamentals

Microsoft · 2025

GCP Professional Data Engineer

Google Cloud coursework

AWS Fundamentals — Going Cloud Native

AWS coursework

05 — Beyond the work

Off the clock

Admissions jury

Jury member for the Concours Mines-Télécom — interviewing and evaluating candidates for France's top engineering schools.

Volunteering

Taught computer skills to seniors and helped organise student meal drives with Secours populaire.

Philately

Collector of European postal and fiscal stamps — slow data, on paper.

Languages

Polish & French native, English fluent, Spanish advanced.

06 — Get in touch

Contact

Have a role, a project, or just a data problem worth talking about? My inbox is open.

patrykchlandapro@gmail.com