Paweł Ptaszyński
Software Engineer at Ptaszynski.codeCraft
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolPaweł Ptaszyński is a pragmatic software engineer with 18 years of experience building scalable backend and data platforms across industries from telecoms to fintech and mobility. He blends deep Scala, Spark and distributed-systems expertise with hands‑on roles in architecture, team leadership and product-facing delivery, currently focusing on data platform engineering and agentic AI systems. Notable projects include evolving Bolt’s platform from warehouse to lakehouse architectures and high-throughput Spark streaming at Citi, demonstrating strong cost-aware and operational thinking. He pairs system-level design with full-stack fluency—Java, Python, TypeScript and cloud-native tooling—to deliver solutions that meet real business needs. A longtime advocate of simplicity and adaptability, he often designs for extensibility (e.g., event-sourcing/CQRS and ingestion-first data architectures) so systems can evolve without major rewrites. Based in Warsaw, he combines independent consulting experience with product engineering at startups like Replika, bringing both autonomy and cross-functional collaboration to complex problems.
17 years of coding experience
15 years of employment as a software developer
Computer Science, Computer Science at Warsaw University of Technology
English, Polish
Github Skills (25)
apache-spark10
spark10
python10
r10
big-data10
hadoop10
apache10
jdbc10
analytics10
java10
large-scale10
scala10
scale10
sql10
data-processing10
Programming languages (1)
Github contributions (5)
pptaszynski/SJavaMutator
Jan 2011 - Jan 2011
Contributions:18 commits in 7 days
pptaszynski/rectblurfilter-x86
May 2008 - Jun 2008
Contributions:8 commits in 11 days
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.