Andrew Volozhanin
Senior Software Engineer at Catawiki
Haarlem, North Holland, Netherlands
Summary
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Rockstar🎓
Top SchoolAndrew Volozhanin is a Senior Software Engineer with 11 years of experience building scalable, production-grade systems across fintech, marketplace, and CRM domains. Based in Haarlem, he has led impactful migrations and architecture work at Catawiki—rewriting search with deep Elasticsearch knowledge, introducing ImgProxy for image processing, and helping deprecate a legacy monolith in favor of Kafka-backed microservices. Previously he built PSD2-compliant fintech APIs, tackled large-scale data and file volumes, introduced Elixir and Elm at his company, and established CI/CD, code review, and observability practices. Comfortable across PostgreSQL, Redis, ClickHouse, InfluxDB, Elasticsearch and more, he blends pragmatic engineering with stakeholder collaboration to preserve user experience during major changes. He mentors junior engineers and fosters productive architecture discussions and documentation, bringing both hands-on coding and team-level craft to delivery. Less obvious: he pairs a practical tool-for-the-job mindset with a history of introducing new languages and operational practices to improve long-term engineering health.
11 years of coding experience
10 years of employment as a software developer
Bachelor of Engineering (B.E.), Bachelor of Engineering (B.E.) at Tyumen State Oil and Gas University
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (200)
chainable10
translation10
activemodel10
row10
rails-i18n10
rails-admin10
hanami9
data-model9
luhn9
resize-images9
slime9
streaming-api9
api9
type-validation9
jruby9
Programming languages (11)
Github contributions (5)
scarfacedeb/credit_card_detector
Sep 2016 - May 2018
:credit_card: ruby gem to provide credit card number validation, type detecting and luhn checks
Contributions:25 commits, 6 pushes, 8 branches in 1 year 8 months
creditruby-gemvalidationrailscreditcard
scarfacedeb/ex_swift
Jun 2019 - Jun 2020
An elixir client for OpenStack Swift API
Contributions:19 commits, 7 pushes, 1 branch in 1 year
apielixirelixir-clientswiftopenstack-swift
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