Jan Urbański
Software Engineer at Ducksboard
Poland
Summary
👤
Senior🎓
Top SchoolJan Urbański is a seasoned software engineer with 17 years of experience building distributed systems, Linux-native tooling, and database internals, currently contributing to Application Performance Monitoring at New Relic while co‑founding Ducksboard. A PostgreSQL enthusiast and contributor, he has improved the query planner, embedded a Python interpreter in the server, and taught PostgreSQL professionally in the UK and Poland. His open-source footprint spans async psycopg2 enhancements, a Twisted-friendly PostgreSQL driver (txpostgres), and fixes across Pika and GStreamer, reflecting deep expertise in Python networking and async I/O. At Flumotion he led core engineering for a large-scale streaming cluster delivering real-time video to hundreds of millions monthly, combining C multimedia pipelines with Python orchestration. Notably, he bridges low-level database internals and high-level distributed application design, a mix that surfaces in both production systems and conference talks at PGCon.
17 years of coding experience
2 years of employment as a software developer
Master of Science (M.Sc.), Computer Science, Master of Science (M.Sc.), Computer Science at University of Warsaw
Polish, English, Spanish, French
Github Skills (26)
asynchronous10
javascript10
licensing10
postgresql10
jquery10
admin10
python10
clientside10
async10
css10
databases10
psycopg10
database-administration10
rabbitmq10
database-driver10
Programming languages (12)
Github contributions (5)
psycopg/psycopg2
Mar 2010 - Feb 2015
PostgreSQL database adapter for the Python programming language
Role in this project:
Back-end Developer
Back-end DeveloperContributions:30 commits, 1 PR, 13 comments in 4 years 11 months
Contributions summary:Jan's contributions focused on enhancing the PostgreSQL database adapter, psycopg2. They implemented functionality to truncate large objects, adding the `truncate()` method. Furthermore, they made changes to the asynchronous query handling, including the addition of `pq_flush()` and `curs_get_last_result()` functions. They also added support for query cancellation. These changes indicate a focus on improving the library's capabilities and performance related to asynchronous operations and large object handling.
postgresql-databaseprogramming-languagepythonpostgresqldatabase
pika/pika
Sep 2011 - Apr 2013
Pure Python RabbitMQ/AMQP 0-9-1 client library
Role in this project:Back-end Developer
Back-end DeveloperContributions:15 commits, 2 comments in 1 year 7 months
Contributions summary:Jan primarily contributed to enhancing the Pika library's functionality and stability. They addressed issues related to UTF-8 encoding in tests, ensuring compatibility with international characters. Significant work involved implementing and refining the Twisted adapter, enabling the use of Pika with a Twisted reactor. Additionally, the user fixed several bugs related to channel behavior and memory management, improving the reliability of the library.
amqppythonrabbitmqamqp0-9-1
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