Sergey Kruk
Software Security Engineer at Cresta
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolSergey Kruk is a seasoned software security engineer and architect with 17 years of experience building and hardening distributed systems across startups and scale-ups. Now based in Berlin, he blends deep hands-on expertise in Terraform, Ruby, JavaScript, Go and Python with a language-agnostic approach to designing resilient, production-grade infrastructure and services. He has led founding-engineer efforts to build horizontally scalable data processing pipelines, driven modularization and service maturity as a staff engineer, and now focuses on applying engineering rigor to SIEM, pentest remediation, and security tool integrations. Sergey pairs systems-level thinking with practical product delivery—often owning everything from firmware-adjacent acquisition software to cloud-native deployments—and enjoys translating complex security findings into actionable engineering work. Colleagues describe him as an engineer with a poetic soul: curious, pragmatic, and unusually comfortable moving between low-level hardware constraints and high-level architecture.
17 years of coding experience
19 years of employment as a software developer
Master of Engineering - MEng Conception Mecanique, Master of Engineering - MEng Conception Mecanique at Grenoble INP - UGASpecialist's Degree Applied Mechanics, Specialist's Degree Applied Mechanics at Bauman Moscow State Technical University
Russian, English, French, German
Stackoverflow
588reputation
39kreached
17answers
6questions
Github Skills (118)
maps10
leaflet10
javascript9
wrapping9
testing9
qunit9
highlighting9
tdd9
tflint9
jasmine9
websocket-client8
bdd8
github-api8
browser8
highlight8
Programming languages (10)
Github contributions (5)
lonelyelk/elk-quine
Jan 2018 - Nov 2021
Contributions:25 commits, 23 pushes in 3 years 10 months
lonelyelk/advent-of-code
Dec 2019 - Dec 2022
Contributions:254 commits, 9 PRs, 189 pushes in 3 years 1 month
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