Looking for a job

Jonathan Gollnick

@jonathangollnick

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I build reliable financial data pipelines and full-stack applications with Python and .NET.

United States

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What I'm looking for

I'm looking to build reliable backend, data-pipeline, or full-stack systems where I can apply Python, SQL, and .NET experience, contribute to modern engineering practices, and collaborate through clear documentation, code reviews, and Agile delivery.

At Cboe Global Markets, I deployed and maintained dozens of 24x7 financial data pipelines using Python, MySQL, and Rundeck, keeping live and historical market data flowing reliably.

I modernized distributed pipelines from MSSQL Server Agent to Rundeck and Python, improved schemas and query performance, and established automated testing and CI/CD standards. I also evaluated Multi-Master PostgreSQL replication and failure handling across two data centers.

Earlier at Quintrix Solutions, I led SharpScape, an online multiplayer game built with C# .NET, ASP.NET, PostgreSQL, JWT authentication, and encryption. I enjoy building practical internal tools, reliable backend systems, and full-stack software while collaborating through code reviews, documentation, and Agile delivery.

Experience

Work history, roles, and key accomplishments

Software Engineer

Cboe Global Markets

Sep 2023 - May 2026 (2 years 8 months)

Deployed and maintained high-performance financial data pipelines using Rundeck, MySQL, and Python. Designed database schemas, migrated pipelines from MSSQL to Rundeck, and implemented CI/CD standards.

Python Rundeck MySQL PostgreSQL Linux BASH Git GitHub Bitbucket Jira ETL Data Pipelines Unit Testing Integration Testing Logging Monitoring REST APIs JSON CSV Data Validation Agile Scrum Code Review Pull Requests

Service Technician

Walmart

Mar 2023 - Sep 2023 (6 months)

Provided technical service and equipment maintenance in a high-volume retail environment, handling troubleshooting and customer-facing technical assistance.

Troubleshooting Maintenance Customer Service

C# .NET Developer (Contract)

Quintrix Solutions

May 2022 - Aug 2022 (3 months)

Performed contract C# .NET development and served as Project Lead Developer of SharpScape, an online multiplayer game, designing core features including authentication and multiplayer functionality.