Roman Pietrzak
Technical Lead at RentInvesto.app
Lubusz Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolRoman Pietrzak is a seasoned technical lead and builder with 20+ years of hands-on experience delivering high-performance, scalable systems across web, embedded and data-heavy domains. He combines deep low-level expertise (C/C++, embedded Linux, FPGA) with modern cloud-native architectures (Golang, Node.js, Kafka, Kubernetes) to design systems that handle billions of events, sub-5ms latencies and >1TB/day throughput. Roman has repeatedly reduced costs and cycle-times—most notably replacing a third-party data pipeline to save 100k+/month and turning multi-sprint change workflows into minute-level configuration changes—while also leading distributed, fully-remote engineering teams. Equally comfortable shipping code and shaping technical strategy, he’s built end-to-end stacks for crypto, trading-grade GUIs, IoT devices and high-throughput financial systems. An entrepreneur at heart, he blends methodical engineering with pragmatic speed and a persistent focus on developer efficiency, observability and security.
11 years of coding experience
28 years of employment as a software developer
Computer Systems Technician, Computer Systems Networking and Telecommunications, Computer Systems Technician, Computer Systems Networking and Telecommunications at Electronics Technical School in Zielona GóraMSc, Software Engineering, MSc, Software Engineering at Uniwersytet Zielonogórski
English, Polish
Stackoverflow
625reputation
55kreached
42answers
1question
Github Skills (87)
core-package10
scheme10
settle10
zenhub10
ledger9
xrp9
api9
ttk9
ethereum9
translation9
websocket-client8
npm-scripts8
postman8
maths8
symbolic-math8
Programming languages (6)
Github contributions (5)
kemu-studio/bb_code_2
Mar 2015 - Oct 2020
BB Code 2.0 in JavaScript (node.js)
Contributions:58 commits, 15 PRs, 55 pushes in 5 years 8 months
bb-codenode-jsjavascriptnodejsjavascript-node
kemu-studio/evaluate_bundlers
Jan 2021 - May 2022
Contributions:2 pushes, 1 branch in 1 year 3 months
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