08/24/2026 updated

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Senior Python & Data Platform Engineer | Kubernetes · Azure · AWS · GenAI/MCP

Budapest, Hungary
Germany +4
info: Germany, Austria, Switzerland, Hungary, Netherlands
PhD, Astronomy and Astrophysics - Eotvos Lorand University (2013-2016)
Budapest, Hungary
Germany +4
info: Germany, Austria, Switzerland, Hungary, Netherlands
PhD, Astronomy and Astrophysics - Eotvos Lorand University (2013-2016)

Profile attachments

Gergely_Csepany_CV_Data_Platform_EN.pdf

About me

Senior Python & data platform engineer (PhD in astrophysics, 20+ years of code). I turn research-grade computation into production systems — data pipelines, cloud infrastructure, release engineering, GenAI backends. Remote-first from Hungary, B2B via my company BigPebble Kft.

GenAILLMMLOpsApache AirflowAmazon Web ServicesMicrosoft AzureBig DataContinuous IntegrationExtract Transform Load (ETL)Data ManagementDevOpsDjangoPython (Programming Language)KNIMEPostgreSQLSoftware ArchitectureCloud Platform SystemApache SparkBackendBackend ProgrammingPySparkKubernetesTerraformData PipelineDockerDatabricks
Python & Backend Engineering
Over 15 years of Python development experience, including Django-based backends, REST APIs, data-processing pipelines, and production-grade systems for research and enterprise clients.

Data Platform Engineering
Expertise in building and stabilizing data platforms using Apache Airflow, Spark/PySpark, PostgreSQL, Parquet/data lakes, Databricks, and Knime, with a focus on multi-terabyte data releases and integration-testing pipelines.

Cloud & Infrastructure
Hands-on experience with Kubernetes, Docker, Terraform, Azure, AWS, and CI/CD pipelines, including monitoring and observability for cloud-native production environments.

AI & GenAI Engineering
Building GenAI/LLM backends, custom MCP (Model Context Protocol) servers and orchestrators, agentic pipelines, and AI-assisted engineering workflows with senior review and quality gates.

Machine Learning & Scientific Computing
Application of PyTorch and scikit-learn for model training and fitting, including large-volume GPU-based training and custom astronomical data-processing frameworks developed during PhD research.

SQL & Database Engineering
Proficient in SQL and PostgreSQL for data engineering, analytics, and backend development across multiple production environments.

C/C++ & Embedded Systems
Earlier experience with C/C++ and Fortran, including embedded sensor systems and plasma-physics simulation integration.

Technical Audits & Architecture
Conducting technical audits covering architecture, code quality, and delivery risk, as well as producing architecture roadmaps and stabilization plans for high-stakes engagements.

Web Development & CMS
Full-stack web development experience including Django, PHP, WordPress, and e-commerce platforms, serving Hungarian SMEs and long-term product clients.

Experience

Professional experience10+ years
Freelancer since2018

Languages

GermanGoodEnglishFluentHungarianNative speaker

Project history

Lead/Staff Python Engineer - AI-accelerated delivery & technical audits

binhatch

Internet & IT

10-50 team member

High-stakes, high-variability engagements. Platform and backend delivery for AI scale-up Parloa (Python, cloud-native, production GenAI systems); technical audit of a TMS product covering architecture, code quality, and delivery risk.

Data Platform & Release Engineer

MSCI - Climate Research Center

Banking & Financial Services

5000-10.000 team member

Release and data-platform engineering for MSCI's Climate Research Center. Multi-terabyte climate/ESG data releases on weekly and monthly cadences: building and stabilizing integration-testing pipelines, optimizing release flows, coordinating across research and engineering teams. Stack: Python, Django, Kubernetes, Databricks, Azure.

Owner & Principal Engineer

BigPebble Kft

Internet & IT

< 10 team member

Engineering consultancy for computation-heavy systems. Long-term product stewardship for BCP Magyarorszag (client since 2011) and Typotex Kiado (client since 2012), currently rebuilding both websites on a modern Django stack, one with a WordPress frontend. Earlier: Django/Python builds and IT consulting for Hungarian SMEs (company register system, publishing platform, e-commerce).

Data Engineer

Datraction

Internet & IT

10-50 team member

Data engineering and backend development within an expert analytics team (Python).

Python Developer - Financial Reporting (Knime)

Citi

Banking & Financial Services

>10.000 team member

Financial reporting tooling on the Knime Analytics Platform.

Lead Developer

Proofminder

Internet & IT

10-50 team member

Built the backend foundation of an agri-tech ML product: data-processing pipelines and queues, REST APIs, AWS + Kubernetes infrastructure, GIS integration, and large-volume PyTorch model training on CPU and GPU.

Python Developer

Gitential

Internet & IT

10-50 team member

Backend components for a Git-analytics product; Docker and Terraform in production.

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