26 years of UNIX and Linux experience - 3 years of Python programming

Ricardo Corrieri

**** ********* *****, **********, ** 60565 ● 630-***-**** ● *******.********@*****.***

Python Automation Engineer

Automation ~ Support ~ Infrastructure Projects ~ Solution Development ~ Documentation

Troubleshooting ~ Systems Administration & Integration ~ Performance Tuning ~ Bash Scripting

Profile

Seasoned IT professional with proficiency in programming and scripting with Python to solve complex problems and deliver robust functionality.

Broad-scope technical background spans programming/scripting, VMware and Infoblox devices, storage servers (3PAR and NetApp), automation, infrastructure optimization, and supporting Oracle business environments running on Linux, Solaris, and VMware platforms.

Excel at planning, analyzing, and coding Python modules to manage a wide range of processes.

Proven success in coding automation using Bash and Python for Linux Debian servers, and leveraging Python to program APIs for VMware, 3PAR and Infoblox.

Highly respected by management and peers for innovation, resourcefulness and integrity, as well as the ability to resolve issues quickly and deliver genuine results.

Diligently focus on optimizing software performance, reliability, security, scalability, and compliance.

Professional Experience

Enova International, Chicago, IL, 2013 to Nov. 2016

Systems Engineer II

As integral member of IT infrastructure services team, supported and continually enhanced all software and systems within IT department.

Leveraged sharp troubleshooting skills to analyze, diagnose, and swiftly resolve issues involving operating systems (Debian Squeeze and Wheezy) and automation code (Bash and Python).

Devised and implemented automated solutions for VMware, Infoblox, and 3PAR via Python API.

Prepared comprehensive technical documentation for scripts, solutions, and software artifacts created.

Maintained and periodically upgraded GitHub Enterprise Appliance used by more than 200 engineers.

Configured Python application to automatically build VMware templates (virtual machines) for Debian Wheezy and Ubuntu Xenial operating systems.

Performed complex scripting to automatically remove useless network interfaces from virtual machines already in staging and production environments.

Wrote Bash script featuring 1,200+ lines of code to automatically upgrade Debian Lenny server to Debian Squeeze.

IT Convergence - USA, 2008 to 2013

Senior UNIX Engineer (2012 to 2013)

Delivered level II support for critical issues involving operating systems (Solaris, Red Hat Linux, VMware, and Oracle VM servers) and storage (3PAR and NetApp) as valuable member of core engineering team.

Wrote customized scripts in Bash, Perl, and Ruby to facilitate software automation for Linux O/S and storage systems.

Created Distributed Ruby application for Exterran involving 6,000 lines of code which completely refreshed 9 TB of storage from NetApp SAN within eight minutes, took a snapshot of PROD Cluster environment, and applied it to Oracle Reporting Server.

Coded 5,000-line automation solution for Riverbed which refreshed 4 TB of storage from Oracle Disaster Recovery environment on demand, according to customer needs.

Continued …

Professional Experience continued … Ricardo Corrieri – Page 2 of 2

Devised automated mechanism in Perl for PICO Holdings to centralize users management, within a secure environment running SSH authentication with automated certificate deployment for each user.

Programmed script in Perl for GexPro which automatically received all types of encrypted FTP transfers, located files in different directories, and facilitated decryption.

Optimized NetApp SAN by masterminding solution which scanned filesystems for all 1,000+ servers in ISS Network to detect file systems misalignment.

Generated solution which automated delivery of performance statistics by email according to internal needs.

Coalesced nmap, Ruby and MySQL to develop application which automatically updated hosts inventory each day within internal infrastructure.

Steered automation efforts for ITC 3PAR SAN including monitoring of iSCSI sessions to reveal problems.

Spearheaded process to enhance performance analysis activities on hosted Linux servers.

Increased infrastructure functionality and security by implementing NFS v4 involving Active Directory, Linux LDAP, and NetApp ONTAP.

Applied strong documentation skills toward preparing SOPs for operations, change management requests for internal hardware/software, and root cause analysis reports for Severity-1 events.

Operations Team (2008 to 2012)

Supported IT Convergence Hosting Operations across US, India and Puerto Rico offices by maintaining, analyzing, and optimizing operating environments, applications, and storage systems.

Championed installation, configuration and troubleshooting of networked Red Hat Linux 4.x and 5.x, VMware ESXi 4.x and 5.x servers, and VMware Guests (Red Hat Linux).

Installed and maintained Oracle OCFS2 stack for each new Oracle RAC environment, EMC Networker 7.6.x Backup, Nimsoft Nimbus, Sendmail and Oracle Workflow, and SFTP/FTP packages for FTP Servers.

Effectively configured Load Balancing through BigIP F5 for Oracle Web Application Layer servers.

Orchestrated configuration, troubleshooting, and tuning of Fibre Channel and iSCSI services for Linux and VMware servers connecting to NetApp and 3PAR nodes.

IT Convergence - Argentina, 2006 to 2008

Senior UNIX Administrator

Performed system administration and Bash/Python programming to support client’s 24/7/365 operations in San Francisco.

Adeptly installed, configured, and maintained Solaris servers, NFS, Sendmail, Apache and JBoss.

Troubleshooted and resolved application errors, and managed performance tuning and load assessment.

Used Python scripts to automate Oracle monitoring tasks and Brocade switches operations, and maintained Bash shell scripts consisting of more than 10,000 lines of code, critical to customer operations.

Societe Generale Bank - Argentina, 1994 to 2006

Senior Core Support Specialist

Resourcefully designed scripting tool to efficiently receive, process, and send information to leading credit card brands such as MasterCard and Visa.

Produced application coded in ANSI C to interact with bank’s XCOM product, thereby enabling automation of data transfer for multiple processes.

Technology

Python, Bash, Travis, Jenkins, Git, HTTP, JSON, Ruby, DNS, Debian Linux, Packer, Chef, CFEngine, PostgreSQL, Infoblox, VMware, NetApp, MySQL, sqlite3, Linux/UNIX, Oracle RAC, EMC Networker, Nimsoft Nimbus, Sendmail, Oracle Workflow, Active Directory, Windows O/S, BigIP F5, Java, C#, Perl, Apache, JBoss, SiteScope, Nagios

Education, Training & Certifications

NetApp Certified Data Management Administrator (NCDA), NetApp License NETAPP00039261

Object-Oriented Application Analysis and Design for Java (UML), SUN Microsystems

Distributed Programming with Java Technology, SUN Microsystems

Associate Degree in Programming, NCR Institute of Computer Science, Buenos Aires, Argentina

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