Sebastian Nanek
Senior Software Engineer at char.gy
Cracow Metropolitan Area Poland
Summary
👤
Senior🎓
Top SchoolSebastian Nanek is a Senior Software Engineer based in the Cracow Metropolitan Area with 13 years of experience building resilient web and data-driven systems across p2p finance, insurance, e-learning and online meetings. He is a pragmatic full-stack engineer and backend platform specialist who repeatedly delivers production-grade Ruby/Rails services, data pipelines and scalable infrastructure using PostgreSQL, Cassandra, Redis, Docker and AWS. Beyond shipping code, he champions knowledge sharing, collaborative ownership and process improvements that boost team throughput and reduce technical debt. His background includes freelance consultancy and hands-on roles in rapid-growth startups and established platforms, giving him breadth in refactoring legacy systems, API design and Big Data integrations. A practical polyglot, Sebastian pairs deep Ruby expertise with experience in DevOps and ETL work—often stepping into ops and data engineering tasks to unblock product delivery.
13 years of coding experience
13 years of employment as a software developer
Master of Science (MSc) Applied Computer Science System and Software Engineering, Master of Science (MSc) Applied Computer Science System and Software Engineering at AGH University of KrakowA-levels (equiv.) Mathematics Computer Science, A-levels (equiv.) Mathematics Computer Science at 1 Liceum Ogólnokształcące w Bochni
Polish, English, Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (36)
tracks5
authority4
pipenv4
change-detection4
backbone4
logic3
rad3
ruby-on-rails3
atomic3
financial3
project-management3
cassandra3
ruby3
compose2
rails2
Programming languages (4)
Github contributions (5)
sebastian-nanek/maze-sample
Nov 2015 - Jan 2021
Contributions:2 pushes, 2 branches in 5 years 3 months
simplybusiness/simplycop
Mar 2017 - Sep 2020
Shared rubocop configuration for Simply Business applications
Contributions:1 review, 2 PRs, 2 pushes in 3 years 6 months
rubocoprubyrubocop-configuration
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