Pawel Janicki - Software Engineer at Arista Networks

Pawel Janicki

Software Engineer at Arista Networks

Greater Poland Voivodeship

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Summary

👤

Senior

🎓

Top School

Pawel Janicki is a seasoned software engineer with 12+ years of hands-on experience building and maintaining robust back-end systems across Linux, Windows and embedded environments. He combines deep low-level expertise in C++ and non-GC environments with practical operational skills—root cause analysis, 24/7 sustaining, and post-deployment diagnostics—to reduce risk and maintenance costs for large-scale services. Pawel has led small engineering teams, driven migrations for half-million-subscriber platforms, and works daily with Cassandra, MSSQL, Docker and AWS (EKS/EC2), backed by an AWS Cloud Practitioner cert. His open-source contributions to the LizardFS distributed filesystem reflect a pragmatic focus on reliability, metadata integrity and production-grade fixes. Comfortable with client-facing roles and security-sensitive contexts, he pairs precision and systems-level understanding with a willingness to wear different hats to get complex projects over the line.

12 years of coding experience

Master of Engineering (MEng), Computer Science, very good with distinction, Master of Engineering (MEng), Computer Science, very good with distinction at Military University of Technology in Warsaw

Polish, English

Github Skills (10)

distributed-systems10

c-language10

cprogramming-language10

filesystem9

data-storage9

fault-tolerance9

storage9

debug8

linux8

high-availability8

Programming languages (1)

C++

Github contributions (1)

lizardfs/lizardfs

Aug 2013 - Apr 2014

LizardFS is an Open Source Distributed File System licensed under GPLv3.

Role in this project:

Back-end Developer

Contributions:12 commits in 8 months

Contributions summary:Pawel primarily contributed to bug fixes and code improvements within the LizardFS distributed file system. Their work focused on addressing obsolete command-line switches and double-check conditions in the main application code. They also resolved issues related to Wireshark plugin generation and metadata handling, including fixing a bug in the metadata restore process. Furthermore, the user refactored code related to metadata storage and resolved an issue in the changelog download process.

erasure-codingaccelerationc-plus-plusload-balancingfault-tolerance

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