Sergey S.

Experience

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  Foxtrot

  Sept 2005 - Feb 2007

  System Administrator

  • Started as a sysadmin supporting one branch office and 2 shops and grew up to 4 branch offices and 15 shops in the region.• Deployed Internet access proxy/caching/filtering/reporting system to prevent downloading infected files and visiting inappropriate sites.

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  Allo

  Mar 2007 - Aug 2010

  System Engineer

  • Standardized OS and software deployment and patching using Microsoft System Center in HQ and all 400 branch offices, decreasing support time by 70%.• Led email and encryption system migration from Exchange 2000 to Exchange 2007 + Forefront Identity Manager 2007, which allowed to keep access to old encrypted emails and provided better certificate users’ self-management as well as stay on a vendor-supported version.

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  Barclays Capital

  Sept 2010 - Feb 2012

  Windows Support Engineer

  • Automated daily tasks using PowerShell, decreasing the average number of open tickets by 80% (from 150 to 30), thus improving team response time by saving on average about 4h/day per engineer.• Improved English level as well as time, priority, and change management skills which is a must in order to support a huge 25000+ servers environment.

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  Credit Suisse

  Mar 2012 - Jun 2013

  Senior System Architect

  • Led platform upgrade from Windows Server 2008 to 2012 to virtualize servers and be able to perform any firmware upgrade or hardware maintenance with no downtime, which previously took 6 hours to complete.• Redesigned storage/backup solution allowing users to store almost unlimited copies of documents or restore them from the 10 years old backup, instead of having a 7-days retention policy configured before.

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  Cisco Systems

  Aug 2013 - Jul 2021

  DevOps Lead

  • Performed interviews, onboarding, performance reviews, and 1-2-1 meetings, which allowed me to build a team of true DevOps professionals, providing infrastructure support 24x7.• Tracked team performance and built reports slicing data per engineer, ticket type, priority, time-to-response, etc., and their combinations to improve team velocity by 25% and meet SLAs.• Helped the team automate data center deployments with Ansible, achieving a 4x speedup in configuration time, enabling deployment of up to 2 data centers per week.• Supported the development and scaling of a secure tunnel network from 10 VMs to 2500 across the globe, providing comprehensive testing and documentation.• Optimized VM memory usage by removing unnecessary reservations, increasing the ability to host 60% more VMs on the same hardware (2000 servers across 25 data centers).• Led the in-house automation of data center deployments, slashing deployment time by 85%, upgrade time by 93%, and significantly improving security patch application. Show less

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  NDA

  Aug 2021 - now

  Engineering Manager

  • Fostered strong working relationships with stakeholders across various departments, ensuring seamless communication and alignment on technical initiatives.• Grew the engineering team's capacity to support a 5X increase in applications while maintaining a lean and efficient structure, demonstrating effective team management and technical leadership.• Conducted comprehensive technical interviews for DevOps Engineers and Engineering Managers, evaluating candidates' skills, experience, and problem-solving abilities to identify top talent.• Successfully optimized our infrastructure to reduce costs and improve efficiency, resulting in monthly savings of $50,000. Show less