Looking for a job

AJARCO User

@ajarcouser

Message

I build reliable scientific data pipelines with Python, PySpark, APIs, and AWS.

Poland

Message

What I'm looking for

I'm looking to build reliable, reusable data-processing solutions for scientific or enterprise data, with opportunities to work on API integration, automation, cloud environments, and scalable PySpark pipelines.

I build reusable scientific data-processing pipelines, currently delivering data integration, transformation, validation, and automation components for Elsevier through Exadel. My work connects heterogeneous sources and REST APIs into maintainable workflows for scientific datasets.

Previously at ChemAxon, Selvita, and Sabre, I developed KNIME libraries, Python and Bash automation, SQL optimizations, cloud deployments, and chemical-data workflows. I bring over 10 years of experience turning complex structured and semi-structured data into reproducible, reliable processing solutions.

Experience

Work history, roles, and key accomplishments

Current

Senior Data Engineer

Current

Exadel

Jun 2025 - Present (1 year 3 months)

Design and develop reusable data-processing components and workflows for scientific data integration, transformation, and automation. Integrate heterogeneous data sources and REST APIs, implement data quality checks, and collaborate with stakeholders.

Python PySpark REST APIs JSON Data Integration data transformation Data Quality KNIME Pipeline Pilot AWS Docker CI CD

Solution Engineer

ChemAxon

Apr 2017 - Apr 2025 (8 years)

Designed and implemented reusable KNIME component libraries for data processing and workflow automation. Integrated Java-based services and APIs, built data workflows for ingestion, integration, transformation, and standardization, and supported cloud deployments.

KNIME REST APIs OAuth AWS EC2 S3 RDS VPC SQL Stored Procedures Data Integration data transformation Workflow Automation

System Owner

Sabre

Dec 2015 - Mar 2017 (1 year 3 months)

Developed Python and Bash scripts for deployment, data aggregation, and operational automation. Automated recurring tasks, analyzed logs, and supported production environments.

Python BASH Automation Deployment Log Analysis Troubleshooting Technical Documentation

Computational Chemist

Selvita

Nov 2012 - Nov 2015 (3 years)

Developed KNIME data-processing pipelines for chemical and biological datasets, and Python scripts for data analysis and automation. Designed MySQL databases, curated external data, and implemented data cleaning and standardization workflows.