Hello, I'm D*****

Sr. Infrastructure Engineer - DevOps. Experienced in technology, Software Development and operations Specialities: UNIX/Linux (RHEL,CentOS,Ubuntu, Solaris 2.5- 11, SUSE Linux).VMware, Cloud computing AWS, Puppet & Ansible configuration management tools. Scripting expertise in Bash, Python 2.x/3x. Great knowledge on Jenkins.GitHub. Expertise on Network Technologies, TCP/IP stack, Cisco routing and swtiching (VLAN's, Routing OSPF), Storage knowledged on EMC VNX Celerra, Clarion, Unity 500. Great Experience on AWS. Knowledge on Oracle Data Base 8,9,10, 11g, 12c. Web - Apache, Apache-Tomcat

Read More

Skill Index

I am skilled in...

Ruby on Rails
Cisco Certified Network Associate (CCNA)

Industry Density

Top 5 Industry Experience, Expressed in Percentages

Information Technology and Services


Education Management


Financial Services


Career History


Sr. Unix System Administrator @ (HIDDEN)

January 01, 2015 - Current

Role Description

Oportun, formerly Progreso Financiero, is a mission-driven, high growth financial services company serving the credit needs of the growing Hispanic market.


  • Responsible for provisioning EC2 instances in AWS infrastructure, security groups, provisioned EBS,
    S3. Unix Admin, write shell scripts to fix Security vulnerability. Created a based amazon images
    using packer software. Installed and maintain SoftNas (NFS Storage software in AWS). Provide Tech
    support to Unix platforms for developers. Installed Jenkins for the Analytics group. Responsible to
    administer Filer Netapp, creating volumes to provision space to vmware. Worked with the devops team
    creating playbooks using Ansible. Configuration management tool.

Skill Strengths (Breakdown in Percentages)

  • Unix (20%)

  • Ansible (20%)

  • Amazon AWS (20%)

  • vmware (20%)

  • NetApp (20%)

Administrator @ (HIDDEN)

January 01, 2014 - Current

Role Description

This Construction Industry Scheme (CIS) training programme gives delegates an overview of the challenges of the employment status of construction workers and how to protect the engager from an HMRC ‘status challenge.’ This programme will cover the entire life cycle, beginning with registration and continuing on through the engagement and payment of subcontractors. Additionally, the course will cover what should be excluded from reports and the need to make a deduction.Delegates of this programme will receive practical advice regarding how to deal with supplier disputes, particularly those claiming their work is outside the scope of the Scheme. Delegates will furthermore practice with case studies on all aspects of the Scheme and will have time throughout the day to ask questions to the trainers.


  • Willing to learn from others as a team player and share my knowledge with others.

Skill Strengths (Breakdown in Percentages)

  • Ruby on Rails (40%)

  • Cisco Certified Network Associate (CCNA) (30%)

  • Python (30%)


System Engineer-DevOps. @ (HIDDEN)

January 01, 2013 - January 31, 2014

Role Description

he Company’s service offerings are organized around the four main stages of the IT lifecycle: Plan, Design, Build, and Run. Taos’ expertise in leading edge technologies and deep knowledge across all infrastructure, cloud operations, and data center domains allows Taos the ability to plan, design, build, and run its client’s IT infrastructure systems. As part of the nation's IT landscape since 1989, we have the expertise to help our clients achieve the operational excellence demanded of them, and we’ve built the support network to ensure our talented technologists succeed.


  • Responsible for setting up a new infrastructure racked-mounted Oracle SPARC T4-1/T5-1 systems, setup network cross connect via patch panel to Cisco Switches in a Data Center
    Setup a new jumpstart server with Solaris 10 using Oracle Solaris ZFS filesystem. Configured ILOM on T4-1, T5-2 Sun servers
    Configured multiple NICS on Sun Servers to connect to different network segments. Installed and configured Oracle Enterprise Manager Ops Center 12C
    Configured NFS servers to be part of a jumpstart server with Solaris 10. Introduced and configured OSSEC Open Source Host-based Intrusion Detection System that performs log analysis, file integrity, checking policy monitoring on a RHEL 6.3 virtual machine
    Setup and configure a new single sign-on infrastructure using Likewise and AD Windows 2008 R2
    Created bash scripts to install Oracle dependencies (Libraries) prior to Oracle 11g installation. Installed and configured Oracle Database 11gR2 on a RHEL 6.3 virtual machine and on a physical server Dell r610 too.. Install and managed RHEL 6.3 on servers
    Configured and managed both Solaris 10, 11 and RHEL 6.3 servers on a VmWare infrastructure. Setup custom templates, cloned vm’s for a testing environment.
    Managed a VmWare cluster (ESX 5.1). Allocate new datastore in a VmWare cluster environment. Troubleshoot and fix network problems with Solaris

Skill Strengths (Breakdown in Percentages)

  • Linux (30%)

  • EBS (30%)

  • Ksh (20%)

  • Bash (20%)


System Engineer-DevOps @ (HIDDEN)

January 01, 2012 - January 31, 2013

Role Description

People are at the heart of every successful business initiative. At TEKsystems, a leading provider of IT staffing, IT talent management and IT services, we understand people. Every year we deploy over 80,000 IT professionals at 6,000 client sites across North America, Europe and Asia. Our deep insights into the IT labor market enable us to help clients achieve their business goals—while optimizing their IT workforce strategies.


  • provisioning Linux RedHat VM’s in a VMware cluster infrastructure via kickstart using RHEL 6.3. Customize VMware templates to deliver Linux Red Hat systems.
    Modified and cloned VMs in VMware 5.x. Troubleshoot Linux systems in a VMware cluster environment, installing VMware tools, monitoring Unix file systems, setup DNS client, new file systems using LVM after adding new HD’s
    Configured Dell Severs r710, r720 remotely through iDRAC to Configure RAID controllers, troubleshoot RedHat 5.x, 6.x. Network, filesystem, NFS, DNS problems
    Setup NFS in RHEL 6.3 (Linux cluster environment). Implemented access control through Vintela Authentication Services with RHEL 6.5, 6.3 configuring a single sign-on authentication with AD.
    Creating groups, computer objects in AD. Evaluated, implemented a Puppet configuration management tool as a project. Installed a new puppet master-agent infrastructure
    Develop new manifests in a puppet environment. Engaged in a team effort with Architects to deliver Hadoop Linux servers to be part of a cluster.
    Designed file system custom requirements using VM’s VMware 4.x, 5x, physical Dell servers. Verified that hadoop cluster processes were running executing ‘jsp’.
    Ensuring datanode, namenode, job tracker and task tracker were started and running accordingly. Verified ip configuration specification accordingly under core-site.xm file. Obtained reports from hadoop master server.

Skill Strengths (Breakdown in Percentages)

  • Hadoop (30%)

  • RHEL 5.5/5.8/6.3 (20%)

  • VMware 5.x (20%)

  • Red Hat5.x (20%)

  • vmware (10%)

System Engineer-DevOps. @ (HIDDEN)

January 01, 2012 - December 31, 2012

Role Description

As an IT Executive in 1998, Don Peed was fed up with the multitude of staffing companies he had to deal with. They did not understand his requirements and provided little value beyond brokering resources. He was wasting time educating and watching over inexperienced contractors, often having to re-do their work.Realizing there was a gap in the market for a solutions approach to provide true value in providing and managing contingent workers, Don decided to set up a company that made it easy to hire efficient and affordable workers in the tech industry.Techworkers was born.Over the years, Techworkers has developed into a business that provides three offerings – Staffing Solutions, Managed Services and Contingent Workforce Management that focus on resource augmentation, program and project delivery and enterprise-oriented staffing solutions.


  • Building and providing technical and operational support for Unix/Linux RHEL, Solaris10 and ESX/VMware servers.
    Coordinate on a team effort with East Coast SysAdmins creating Unix accounts in a single sign on environment. Migrated home directories via shell scripts using Netapps
    Assist developers in all aspects of Unix, troubleshooting network problems, opened remote gnome-session via vnc to Unix VM’s in a VMware infrastructure
    Provide support for a continuous integration and test platform shared by many internal projects. Assist developer support on a complete suite of integrated developer tools
    Setup project shares using netapps via shell script. Use of NFS, automounter, build Unix VM’s via kickstart, and/or using existing templates and creating new templates in a VMware ESXi 5 cluster. Provide support patching Unix systems via yum from int
    Install Java 1.6, configure JAVA_HOME environment. Assist a DSP group installing, testing Atlas software. Supported several Internal groups at GE in Unix (Healthcare, Aviation, DSP, Analytics).
    Installed Github enterprise appliance. Nodejs ( rpm format). Setup a new testing environment with HP-Proliant 580 Installig ESXi 5.
    Installed new memory and rack systems in a new Data Center. Installed and configured vCenter 5.1.
    Created new VM’s using RedHat Enterprise 6.x. Troubleshoot network issues in a VM network environment. Configure VM, adding cpu, memory, virtual disk.
    Installed VMware tools in VM’s. Racked, and setup a Network appliance FAS3240. Add new hardware to Netapps head controllers to establish communication to shelves/enclosures.
    Experience with rpm’s, yum RHEL 5.X, 6.X, patching, compiling with make and pkgadd in Solaris. Worked with NetApp Engineer to rack, install, cable NetApp Storage System FAS3200 series.

Skill Strengths (Breakdown in Percentages)

  • Java (20%)

  • Linux (20%)

  • Unix (20%)

  • RHEL (20%)

  • VMWare ESXi (20%)


Tech Support- System Engineer @ (HIDDEN)

January 01, 2011 - December 31, 2012

Role Description

Zeus Technology Pty Ltd was first established in Perth in 1989 and has acquired a formidable reputation for:Design, assembly and installation of computer systems;Wholesaling and distribution of computer hardware and software products and Help desk support and maintenance services.Operating from Perth, we offer leading edge, yet cost-effective computing solutions and services to industry, government departments and agencies, schools, and local councils as well as major retail chain stores throughout Western Australia.


  • Providing support and troubleshooting Zeus Traffic Manager (Load Balancer software) running in a multiplatform environment. (VmWare, Linux and Solaris).
    Troubleshoot TCP/IP - Network problems using Wireshark, tcpdump, snoop. Debug custom shell and Perl scripts to redirect traffic to back-end nodes (******, TCP/IP Traffic).
    Setup a labs using VmWare, installing Virtual appliance to test and replicate customer’s problems. Provide support to customers via WebEx and adobe connects.
    Proficient troubleshooting TCP/IP in Unix and Windows. Great knowledge of the OSI model, and TCP/IP stack.

Skill Strengths (Breakdown in Percentages)

  • HTTP (20%)

  • TCP (20%)

  • troubleshooting (20%)

  • IP Traffic (20%)

  • OSI model (20%)


System. Analyst @ (HIDDEN)

January 01, 2007 - December 31, 2011

Role Description

We believe in our vision and values just as strongly today as we did the first time we put them on paper more than 20 years ago. Staying true to them will guide us toward continued growth and success for decades to come. As you read more about our vision and values, you will learn about who we are, where we’re headed and how every Wells Fargo team member can help us get there.


  • Assisted System and DBA Administrators of different departments in a 7X24 environment.
    Host security, performance analysis and corrections, disk space management, responding to network, and hardware failures.
    Provide technical support with Powerbroker security software, and Security Access Software (Vintela Authentication Services) in a multiplatform environment (RedHat, Solaris, AIX, HP-UX), performed TCP/IP network configuration, troubleshooting in UNIX.
    Perl and shell script development (implementation of I/O log encryption detection, worked with shell and Perl scripts for automating regular operational tasks), provided maintenance, enhancement to existing Perl and shell scripts.
    Developed and deployed binary package (RedHat, Solaris) for new releases of Powerbroker software.
    Mentored QA team members onsite/offsite, create step-by-step bug reports, executed and review test cases, logged defects, reported results
    In addition, supported testers by reviewing work providing feedback. Collaborated with a team executing tests and Worked closely with Product Development, Engineering, Support and Operations to ensure specs were completed and catch issues at early stage.
    Participate in a 24x7 on-call support rotation and off-hours maintenance window, OS Security Patch implementation.

Skill Strengths (Breakdown in Percentages)

  • TCP/IP (30%)

  • HP- UX (20%)

  • unlx (20%)

  • Aix (20%)

  • Red Hat (10%)

System Engineer @ (HIDDEN)

January 01, 2007 - December 25, 2007

Role Description

Robert Half is an American human resource consulting firm based in Menlo Park, California. It is a member of the S&P 500, credited as being the world's first and largest accounting and finance staffing firm, with over 400 locations worldwide.


  • Troubleshooting, maintenance, administration of a wide variety of servers in a large highly dynamic environment.
    Installation, configuration of UNIX, Linux, VMware, and Windows servers in VMware Data Center, hardware raid configuration, multi-boot Linux installation (Red Hat, Ubuntu, SuSe, ESX 3.x).
    Along with related networking infrastructure. Troubleshooting hardware, software and network problems. Setup network configuration files (primarily DNS and NIC configuration), hardware maintenance and upgrade (NIC, Memory, HD), racked new servers in a data
    Setup a new patch panel infrastructure, performed cross connects running Ethernet, fiber cables across the data center.

Skill Strengths (Breakdown in Percentages)

  • SUSE (20%)

  • Windows Server (20%)

  • NIC (20%)

  • ESXi 3.x (20%)


System Analyst @ (HIDDEN)

February 01, 2006 - December 25, 2007

Role Description

Considered the founder of the industry, Genentech, now a member of the Roche Group, has been delivering on the promise of biotechnology for over 35 years.Genentech is a leading biotechnology company that discovers, develops, manufactures and commercializes medicines to treat patients with serious or life-threatening medical conditions. We are among the world's leading biotech companies, with multiple products on the market and a promising development pipeline.


  • Supported DBA Administrators to obtain and update asset information utilizing Oracle database, migrating data to SAP.

Skill Strengths (Breakdown in Percentages)

  • SAP (30%)

  • DBA (30%)

  • Administration (20%)

  • Oracle BPM (20%)


Unix SysAdmin @ (HIDDEN)

February 01, 2005 - December 25, 2006

Role Description

Federal Reserve Bank is a regional bank of the Federal Reserve System, the central banking system of the United States. There are twelve in total, one for each of the twelve Federal Reserve Districts that were created by the Federal Reserve Act of 1913.[1] The banks are jointly responsible for implementing the monetary policy set forth by the Federal Open Market Committee, and are divided as follows:


  • providing remote technical support to users performing hardware and software troubleshooting in a Windows environment, setup vpn client configuration for remote users, software installation over the network, perform configuration, troubleshooting for Lotus

Skill Strengths (Breakdown in Percentages)

  • Active Directory (20%)

  • Windows (20%)

  • troubleshooting (20%)

  • setup vpn (20%)

  • NRAS (20%)


Technical Consultant @ (HIDDEN)

January 01, 2004 - December 25, 2005

Role Description

OpSource, Inc. is a cloud and managed services hosting company headquartered in Santa Clara, California. The company also has offices in Ashburn, Virginia, Ireland and India, and data centers in California, Virginia and the United Kingdom.


  • for installing, racking hardware (Cisco, Sun, Intel equipment, ADIC tape libraries).
    Performing cross connect to several pieces of network devices, servers.
    Adding new hardware to different types of servers and Network devices (routers, switches)
    Receiving new hardware, unpacking and have it ready for new installation.
    Performed reboots, new OS and apps installation requested per ticketing system.
    Responsible for setting up hardware raid configuration (disk mirroring) for Dell and Compaq servers previous to OS installation.
    Build new systems through kickstart server over the network.
    Hardware maintenance, and updates (Intel and Sun)

Skill Strengths (Breakdown in Percentages)

  • Sun (20%)

  • Cisco Switches (20%)

  • intel (20%)

  • ADIC (20%)

  • OS (20%)


Sr. UNIX System Administrator Data Center Operations Dept. @ (HIDDEN)

February 01, 2000 - December 25, 2004

Role Description

XO Communications provides the technology that helps business and wholesale customers compete in a hyper-connected economy. In the U.S., XO owns and operates one of the largest IP and Ethernet networks that customers rely on for private data networking, cloud connectivity, unified communications and voice, Internet access, and managed services.


  • IP block assignment from Cisco Catalyst 6509 to customer’s intranet.
    Cisco Hardware Maintenance, IOS upgrades. Performed Cross Connects with Cat 5 UTP cable, DS3 and T1 Lines.
    Implementation of New Patch Panel, wiring for new customers.
    A Cisco switch was configured to attach clients on a non-routed network (back up network) to support several clients (Windows, Linux, Sun) Prepared proper documentation to rotate tapes and send tapes offsite for storage.
    Worked with Network Engineers setting up VLAN’s, providing IP blocks (IP’s class C) when requested by customers, in some circumstances providing two IP blocks to be routed through a firewall (PIX, Checkpoint).
    Worked on a heavy environment doing remote hands for customers in Sun, Linux, Windows and Cisco.
    Provided back up support to Facility Manager and Network Engineer when needed.
    Planned with Facility Personnel, Network Engineers new staging area for new customer areas.
    Participate in a 24x7 on-call support rotation and off-hours maintenance window, OS Security Patch implementation.
    Setup and maintain a backup solution with Legato Networker 6.1.3, ADIC tape library (Scalar1000 and Scalar220) running in a Sun E250 with an A1000 attach to it, configured RAID 5 with Raid Manager 6.22, to keep customer’s data
    Support customers with Apache, Sudo, and DiskSuite, Network configuration (TCP/IP, DNS) in Unix, Linux and Windows.
    Assisted customers installing Oracle 8i (Database) software, providing tech support to customers with Solaris, RH and Windows.

Skill Strengths (Breakdown in Percentages)

  • Linux (20%)

  • Dns (20%)

  • Unix (20%)

  • TCP (20%)

  • RedHat (20%)


Infrastructure System Engineer Field Technical Services Dept. @ (HIDDEN)

January 01, 1999 - December 25, 2000

Role Description

At Oracle, we want to help you shift that spending balance. We help you simplify your IT environment so that you can free up money, time, and resources to invest in innovation. We do this by providing a comprehensive and fully integrated stack of cloud applications, platform services, and engineered systems.


  • Maintaining several Unix/NT Servers (Sparc, Ultra, Enterprise, Dell, Compaq Equipment) as System Administrator. Installation of Sun Solaris 2.6, Oracle 8.0.4; Oracle 8.0.5 and Oracle Application Server 4.0.7.
    Troubleshoot ora.init file by login in as DBA, shutting down and restarting databases when needed.
    Setting up NFS to Sun Systems (Client/Server) to share file information over the network.
    Creation of user accounts including Oracle user per Oracle requirements, implementing security to user accounts and setting up a print services in UNIX Setting up DNS for Sparc, Ultra stations and Enterprise systems to participate on a network environment.
    Hardware upgrades in Enterprise and Ultra Sparc Sun Systems. Disk space added to these systems, formatted to new file system (ufs). Per specific mount point request and needs.
    Provide support for databases running on Unix Sun Solaris 2.x and NT, Migration of Sun 2.5 to 2.6, Oracle Application Server 3.0.2 to 4.0.7.
    Patching Sun servers frequently for a better performance with Oracle software and Databases.
    Tuning and monitoring production UNIX servers to improve performance locally and on a Network environment.
    Responsible for maintaining several Unix/NT Servers (Sparc, Ultra, Enterprise, Dell, Compaq Equipment) as a System Administrator.

Skill Strengths (Breakdown in Percentages)

  • DHCP (20%)

  • ORALCE 8.0.4 (20%)

  • unix Solaris 2.6 (20%)

  • Orace server (20%)

  • OBI (20%)


Technical Support Specialist @ (HIDDEN)

January 01, 1998 - December 31, 1999

Role Description

At Oracle, we want to help you shift that spending balance. We help you simplify your IT environment so that you can free up money, time, and resources to invest in innovation. We do this by providing a comprehensive and fully integrated stack of cloud applications, platform services, and engineered systems.


  • Customer Support first tier support and product support in East, West Coast and Head Quarters locations.
    Responsible for setting up client environment in different classrooms locations in Oracle University. Rebuilding systems over the network and installing
    installing the necessary software for several classes (Oracle Server/Client software to access databases through UNIX and different applications. Setting up Oracle Databases every week for new classes (Oracle University)
    Customer Support first tier and product support of Oracle 8, Application Server.
    Troubleshooting Network Databases (tnsnames, sqlnet.ora files, etc) to access databases running on Sun Solaris 2.6 for different users running on Sun Solaris 2.6 for different users Nation-Wide.
    Customer Support and PC support.

Skill Strengths (Breakdown in Percentages)

  • Oracle (20%)

  • Unix (20%)

  • Network troubleshooting (20%)

  • orcale database (20%)

  • sqlnet (20%)

Education History

Awards & Certificates

  • Software / Hardware Courses Completed