SUMMARY

• IT professional with over 20 years of experience in software, network engineering, systems administration and security management.
• Deep knowledge of various UNIX operating systems and TCP/IP based networks.
• Strong analytical and creative skills.
• Extensive knowledge of hardware.
• A passionate open - source enthusiast.

TECHNICAL SKILLS

Operating Systems: Linux (RHEL/CentOS 4/5/6/7/8, Fedora, Ubuntu, Slackware, SuSE, AWS Linux), FreeBSD, Solaris (9, 10).

Programming Languages: C/C++ (including system level), UNIX shell programming (BASH,TCSH), Python, PHP, Intel x86 Assembler.

Network Protocols/Services: HTTP/HTTPS, FTP/SFTP, Mail servers (SMTP, POP, IMAP), DNS, DHCP, Samba/CIFS, NFS, NIS+, LDAP.

Virtualization technologies: VMware ESX, XEN Enterprise Server, KVM/QEMU; Containers Docker / Kubernetes.

Cloud Environments: AWS, GCP, Rackspace.

Storages: Multi-terabyte SAN/NAS (SCSI, iSCSI, FC).

Databases: MySQL, PgSQL, MongoDB; BigData Cassandra, Hadoop.

Tools: Monitoring - MRTG/RRD, Cacti, Nagios, OpenTSDB, LogStash, ElasticSearch; Configuration management - Ansible, Salt stack; Packages maintenance - RPM/YUM, patching and recompiling RPMS.

Kernel: patching, optimization, and recompilation (Linux and FreeBSD)

Version control systems: CVS, SVN, GIT.

PROFESSIONAL EXPERIENCE

Confidential, Austin, TX

Lead Automating Engineer / Linux Architect

Responsibilities:

• Created and deployed dynamic inventory service for Ansible Tower for filtering tens of thousand target servers (Python 3, RESTful interface, VMware ESX / vSphere 6.7).
• Designed new RHEL8 compliant OS image creating process completely controlled by ansible.
• Implemented changes to automating procedures adjusted to control new-style system services.

Confidential, Austin, TX

Senior DevOps Engineer / Linux Architect

Responsibilities:

• Reorganized existed infrastructure (including migration from RHEL6 to RHEL7).
• Redesigned and implemented customized logging / monitoring services for the production environment.
• Designed and led migration of production environment from Rackspace to AWS cloud.
• Developed and deployed provisioning/configuration tools for the automated cloud management.

Confidential, New York, NY

Director of Engineering

Responsibilities:

• Designed and implemented fully-automated provisioning system for multiple datacenters.
• Invented and led development and deployment of new Linux distro, designed to completely match very special production needs.
• Initially designed and maintained production builds of Linux kernel, patched and optimized for particular production environment.
• Developed and deployed in-house automated configuration management tools (Python / bash scripting).
• Designed and led deployment cloud-based distributed virtual subsystem as a component of production SaaS (tens of thousands of virtual guests running).

Confidential, Parsippany, NJ

Senior Linux Engineer/Architect

Responsibilities:

• Designed and implemented new Linux-based corporate infrastructure.
• Planned and led migration existing Windows-based infrastructure to Linux environment (RHEL and CentOS).
• Designed and led implementation of automated bug tracking system for remote storage appliances (Mail servers / Apache / MySQL).
• Designed, planned, and led execution of QA tests related to infrastructure interoperating.
• Designed and implemented multi-level database for automated collecting and analyzing firmware issues.
• Created fully automated process for building firmware releases (shell scripting / automake / ant) .
• Provided 3rd level support for all Linux-related issues.
• Created custom Kernel builds with partially substituted source.
• Worked with RPM sources (patching and recompiling).
• Managed staging environment (VMware ESX vSphere 4/5).

Confidential, New York, NY

Senior Systems Administrator

Responsibilities:

• Administering and troubleshooting production applications in fast-paced production environment.
• Investigated, analyzed, and resolved operating issues with network services (Nagios, Cacti).
• Deployed, administered, and troubleshot Linux services and applications (RHEL 4.6-5.1).
• Created automation tools for application deployment, monitoring, and reporting.
• Compiled, configured, deployed, and maintained LAMP and Tomcat software bundles in production Linux environment.

Confidential, Quito, Ecuador

Systems Engineer.

Responsibilities:

• Responsible for protection of customer's internal subnets from invasions of privacy or unauthorized access to secure information.
• Developed and maintained effective security solutions for banking/money management applications (Linux, Solaris 9).
• Delivered comprehensive (hardware + software) solutions for customer's networks - from infrastructure design and hardware installation to software support, daily maintenance and monitoring (FreeBSD, Linux).

Confidential

Owner, operator.

Responsibilities:

• Owned and operated internet service provider
• Developed data security solutions.
• Development and support of the corporate network infrastructure.
• Administered network and Internet services.
• Provided hardware installation and support services.
• Managed, administered and supported corporate firewall.
• Maintained and supported HTTP, FTP and Mail servers.
• Developed internal accounting system for traffic analysis.