Data Engineer
Data Engineer with experience in Azure and Databricks. Applied Machine Learning during my Master's thesis and personal projects. Started as BI Developer/Analyst building DWH, ETL, and dashboards.
Jeremias Jaymez
I'm a Data Engineer
I'm from Córdoba, Argentina, living in The Netherlands. Working at Rockdata, focused on data platforms, platform reliability, and applied AI.
Quick Profile
- Position Azure Cloud & Data Engineering Leader, passionate About AI
- MS Learn jeremiasjaymez
- Brand Arsysco & JJ Trending
About
Formal education and background
Education
Information Systems Engineer with a Master's in Information Systems Engineering (2023) and a Master's in Artificial Intelligence (2025).
Story
Arsysco started in Córdoba in 2014, building software for local businesses. It is back as a small software engineering studio, now with Domium as its own live product, while JJ Trending remains the place where I share what I learn about data systems and engineering.
Arsysco is back, recharged with Domium
The original studio is moving again: a decade of client work, now followed by a live product for clearer real estate operations.
2014 to today
A studio with something to prove
Arsysco began in Córdoba in 2014 with software built for local businesses. After years of engineering across data, cloud and product teams, it is back with a sharper focus: systems that still work years later.
Domium is the first product in this new chapter, a property management platform built end to end with React, FastAPI and Azure. It is a practical demonstration of the engineering discipline Arsysco brings to client work.
Trusted by
Resume
Find detailed information about my education, certifications, and work experience on LinkedIn.
Background
Roles across data and development gave me a complete set of tools to help teams grow.
DevOps Engineer
Infrastructure as Code, pipeline reliability, and DataOps. Databricks administration, securing components, workflows, and policy configuration.
Software Engineer
Freelance projects for mid-sized companies. Full stack development with .NET Core and C#.
Skills
Summary of skills across data, DevOps, and development.
Data
ETL, Databricks, Synapse, ADF, MicroStrategy, Pentaho, Power BI, modeling.
DevOps
Azure Pipelines, Bicep, Bash, PowerShell, Terraform, CI/CD.
Development
Web apps, MVC, .NET Core, C#, Python, PySpark, serverless functions.
Challenges
Highlights from complex initiatives with strong constraints and real-world impact.
Secure platform
Built a secure workstation for data scientists and analysts at a financial institution. Designed networking, storage, compute, data ingestion, availability, and software maintenance to meet compliance and performance demands. Helped align efforts with architects, users, and the Product Owner.
Accurate data delivery
Worked for a consultancy company as a contractor for a USA non-profit supporting first-time moms. Delivered business rules, dashboards, and a web app to validate bronze, silver, and gold layers. Supported HIPAA compliance and improved consistency for manually entered data.
Last Blog Entries
Latest thoughts and insights about technology, data engineering, and AI.
RAG Works Better When Your Data Is Already Tidy
A practical take on retrieval pipelines: tidy documents, useful metadata, and fewer magic promises.
Read moreDagster Pipelines Need Clear Ownership
Good orchestration is less about fancy graphs and more about knowing what failed, why, and who should care.
Read moreContact
I'm always interested in new opportunities and collaborations. Reach out through any of these channels.