Fedor Osseliy
@fedorosseliy
DevOps & Monitoring Team Lead building Zabbix-based observability and high-load trading infrastructure with reliability and leadership.
CyprusWhat I'm looking for
I’m a DevOps & Monitoring Team Lead with strong hands-on experience in building and operating high-load, mission critical infrastructures for Trading and Gambling platforms. I combine engineering with leadership—designing architectures and implementing monitoring and observability while running SLA-driven operations.
My key strengths are monitoring systems (Zabbix-focused), automation, and reliability engineering. I take ownership of complex infrastructures, stabilize them, and make systems more transparent, predictable, and easier to operate, especially during market hours.
In my roles, I led and managed monitoring teams and continuously optimized monitoring processes to reduce downtime. I also completely redesigned the infrastructure monitoring system based on Zabbix, automated Zabbix administration with Ansible + Semaphore, and migrated the Zabbix database to Percona XtraDB Cluster to improve high availability and performance.
Experience
Work history, roles, and key accomplishments
Monitoring Team Lead
Just2Trade
Mar 2024 - Present (2 years 4 months)
Led and managed a monitoring team for mission-critical trading infrastructure with strict uptime requirements. Owned Zabbix-based reliability and observability, including alerting, dashboards, and integrations, and redesigned the monitoring system to reduce incident response time.
DevOps Team Lead
Gambling StartUp
Apr 2024 - Jan 2025 (9 months)
Joined as a DevOps Engineer and gradually took ownership of infrastructure and production readiness for product implementation. Led infrastructure preparation, built monitoring, and designed network infrastructure including VPN solutions, while launching multiple products into production.
MetaTrader Engineer
Just2Trade
May 2022 - Mar 2024 (1 year 10 months)
Administered and optimized infrastructure servers and developed/support new features for MetaTrader 4/5 across server and client components. Improved performance and stability through refactoring, integrated MetaTrader API with external services and databases, and enhanced Zabbix monitoring to speed up troubleshooting.
Education
Degrees, certifications, and relevant coursework
Fedor hasn't added their education
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Tech stack
Software and tools used professionally
Availability
Location
CyprusAuthorized to work in
Portfolio
github.com/cross17-artJob categories
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