Image of Sergey Topchiy

Sergey Topchiy's email & phone number

DevOps/SRE at TigerConnect

Sergey Topchiy's Email Addresses & Phone Numbers

Sergey Topchiy's Work Experience

TigerConnect

DevOps/SRE

San Jose, CA

EPAM Systems at Google Inc.

Senior Software Maintenance Engineer

April 2013 to October 2016

Mountain View, CA, USA

Freelance; Self-employed IT professional

sr. System Engineer

July 2006 to February 2012

Kharkiv, Ukraine

Sergey Topchiy's Education

Okhtyrska Secondary school I-III of number 1

1987 to 1997

National Technical University "Kharkiv Polytechnic Institute"

Bachelor's degree, Metrology and measuring equipment

1997 to 2003

Sergey Topchiy's Professional Skills Radar Chart

Based on our findings, Sergey Topchiy is ...

Leader
Expedient
Quiet

What's on Sergey Topchiy's mind?

Based on our findings, Sergey Topchiy is ...

56% Left Brained
44% Right Brained

Sergey Topchiy's Estimated Salary Range

About Sergey Topchiy's Current Company

Softerra

Company IT infrastructure support

Frequently Asked Questions about Sergey Topchiy

What company does Sergey Topchiy work for?

Sergey Topchiy works for Softerra


What is Sergey Topchiy's role at Softerra?

Sergey Topchiy is System Administrator


What is Sergey Topchiy's personal email address?

Sergey Topchiy's personal email addresses are and s****[email protected] and s****[email protected]


What is Sergey Topchiy's business email address?

Sergey Topchiy's business email address is [email protected]***.***


What is Sergey Topchiy's Phone Number?

Sergey Topchiy's phone (213) ***-*396


What industry does Sergey Topchiy work in?

Sergey Topchiy works in the Computer Software industry.


About Sergey Topchiy

💼 Past Experience

Implemented widespreaddomain-wide intrusion detection/prevention system based on openHVM. Sr. SYSTEM administrator at Prucom Services from March 2007 to December 2007 (1 year 5 months) in Kiev, Ukraine. Russian partner of RightManagement Solutions Ltd.Responsibilities and Contributions:• tsp File Distribution and Sharing (SFDoS) solutions• Spam Filtering and Signature Generation (SGS) for email clients• detecting and stopping spam rushes• actively monitoring reverse proxy, proxy server for security and access control• Protection of dataagainst spoofing and man-in-the-middle attacks• Protection of communication from unauthorized intrusions• Protection of online services from server crashes and data loss.Implemented a spam filter for email clients and designed spam signature generation algorithms. Implemented spam filtering solutions for email clients. Responsible for spam filters for email clients and developing spam signatures for email clients. Implemented email filters for email clients. Developed and implemented spam filtering solutions for email clients. led email filters development project for email clients. Implemented spam filtering algorithms for email clients.Implemented SPDO file sharing solution. Sr. SYSTEM administrator at Centric Networks from January 2006 to December 2006 (1 year 2 months) in Kiev, Ukraine. Russian partner of Right Management Solutions Ltd.Responsibilities and Contributions:• Real-time monitoring of SFTP and SCP sessions• Monitoring of SFTP and SCP files• Supports multiple platforms and configurations• Sharing of SFTP and SCP files over RS-485


🎓 Education

Sergey Topchiy has a Bachelor's degree in Metrology and measuring equipment from the National Technical University "Kharkiv Polytechnic Institute".


💡 Technical & Interpersonal Skills

Implemented failover databases system using MySQL Multi-Master Manager. Developed and deployed Continuous Integrated system with subversion. Installed andconfigured media server based on Wowza Media Server for video streaming. Established communications between developers, QA and deployment team using mantis bug tracking system. Implemented monitoring system for all equipments based on Zabbix. sr. Network, System Administrator at Lana Pro Ltd. from June 2006 to December 2008 (2 years 7 months) in Kharkiv, Ukraine. Ukrainian partner of Corrigo, Inc. San Mateo, CA, USA (http://www.corrigo.com)Responsibilities and Contributions:• IIS development and QA servers administrations• MSSQL server maintenance and support• Corporate portal support• Local FreeBSD gateway administration• Corporate mail server (postfix) administration• Network hardware maintenance• Communication with US based company office• Creation and maintenance virtual development environment on VMwareImplemented Solutions:Implemented IIS web farm for development environment. Proposed and implemented corporate portal for employees' communications based on Postnuke CMS and SharePoint. Created VPN based on mpd for home office works to main office using Active Directory authorization. devOps/SRE at TigerConnect in San Jose, CA. Support of infrastructure for dev, qa, uat and production environments including:- AWS: EC2, VPC, ELB, ECS, Route53, RDS, S3, EBS, Lambda, API Gateway- Real-time monitoring service with Sensu, Graphite, Grafana, statsd, Prometheus, Cloudwatch- Real-time logging service with ELK stack- Configuration management with Chef- Infrastructure management with Ansible and Terraform (with Terraform Cloud)- Containers: Docker, AWS ECS, Kubernetes via Kops on AWS- Managing variety of Elasticsearch clusters- Databases: Cassandra, Redis, RDS Aurora MySQL - Managing software stack for analytics: Kafka, Hadoop, Looker- Scripting: Python, Bash, Ruby- Ci/CD: Travis CI, Jenkins, AWS CodeDeploy, GitHub ActionsBesides of that: - Created number of automated test environments on AWS with Ansible, Chef and Jenkins - Created and tested DR plan in a different AWS region - Migrated all components to multiple AZ - Manage releases to production - Participating in on-call rotation for production environments - Improving production uptime to be within SLA - Participating in production issues RCAs/Post mortems and deciding preventive actions to avoid similar issues in the future - Improving monitoring system to detect potential production issues in advance. Senior Software Maintenance Engineer at EPAM Systems at Google Inc. from April 2013 to October 2016 (3 years 7 months) in Mountain View, CA, USA. Working on various customer’s projects.


Sergey Topchiy’s Personal Email Address, Business Email, and Phone Number

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Sergey Topchiy's Ranking

Ranked #1,493 out of 29,860 for System Administrator in California

Sergey Topchiy's Personality Type

Introversion (I), Intuition (N), Thinking (T), Judging (J)

Average Tenure

2 year(s), 7 month(s)

Sergey Topchiy's Willingness to Change Jobs

Unlikely

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