Walter E. Fles
Crown Point,USA
Summary
A skilled and resourceful IT professional utilizing the Unix/Linux operating system, with experience in Automation, DevOps, UNIX scripting, Software Configuration Management, Development, reliable and repeatable software build and release methodologies.
Overview
16
16
years of professional experience
Work History
Site Reliability/Devops Engineer
CHICAGO MERCANTILE EXCHANGE GROUP
01.2020 - 01.2024
- Company Overview: Global trading company enabling clients to trade futures, options, cash, and OTC markets, optimize portfolios, and analyze data – empowering market participants worldwide to efficiently manage risk and capture opportunities.
- Implemented requested configuration changes in various environments up to and including production.
- Wrote, modified, and supported terraform configurations (via terraform) for applications deployed to the Google Compute Environment system for environments ranging from development up to and including production.
- Created/modified UC4 jobs for scheduled automation.
- Performed incident response and management for various environments.
- Requested new (on-prem) servers as needed with custom configurations.
- Created and updated chef cookbooks as needed and tested in a test kitchen environment.
- Wrote ansible playbooks for monitoring multiple server statistics such as CPU and disk space usage.
- Created and maintained python scripts to check the integrity of deployed applications.
- Created a tool to derive information of deployed applications which created/updated Confluence wiki pages with up-to-date status/information.
- Deployed applications to various environments (Dev through production) based on developer’s and QA’s request and ensured they were starting and operating correctly.
- Collaborated with Linux system administrators to ensure servers were working properly for various environments.
DevOps Architect (Consultant)
CAPGEMINI AT TRANSUNION
12.2019 - 06.2020
- Company Overview: A leading strategic partner to companies around the world, leveraging technology to enable business transformation addressing the entire breadth of business needs, from strategy and design to managing operations.
- Designed a Proof of Concept to replace Splunk using Elastic Stack running in an AWS EC2 environment to capture Jenkins Pipeline Data, Application output logs, system metrics and Key Performance Indicators (KPI), and to display this information on a Kibana Dashboard, wrote documentation for the end-client to Implement in production.
DevOps Automation Engineer (Contract)
SIGNATURE CONSULTANTS AT BANK OF AMERICA
06.2019 - 12.2019
- Company Overview: Financial services arm of large multinational bank.
- Evaluated the needs of escalated access for Active Directory and Powerbroker roles required on automation servers, submitted access request tickets to allow the ansible scripts to be executed, and tested to ensure proper operation.
- Evaluated the needs of automation and designed/implemented ansible roles and tasks as well as templates for automation scripts.
DevOps Build & Deploy Engineer
JP MORGAN CHASE GLOBAL COMMERCIAL CARD IT
01.2013 - 01.2019
- Company Overview: American multi-national banking and financial services holding company.
- Analyzed from Application Development engineers the requirements for new build and deploy procedures, and implemented using Ant, Maven, Perl script and Jenkins.
- Investigated manual/cumbersome or impeding steps of the build/deploy process and implemented changes for automation and performance improvement.
- Coordinated and executed deployments into all environments, up to and including production enterprise releases.
- Administered and upgraded Jenkins build instances used by the Application Development and Deployment teams ensuring 100% availability world-wide to in the Commercial Card organizations.
- Migrated Jenkins/ant build processes from SVN to git ensuring build artifacts were produced successfully with no loss in functionality.
- Maintained and modified as needed a deployment dashboard written in PHP to manage and invoke automated Jenkins deployments (jobs), and to convey to organizations the status and history of automated deployments.
Source Control Administrator / Enterprise Application Support Engineer
PEAK6 INVESTMENTS
01.2008 - 01.2012
- Company Overview: Investment management firm with proprietary trading and capital investment businesses.
- Optimized build processes to work with the version control systems AccuRev and git to provide continuous integration builds, migrate the firm of 100+ developers to AccuRev and git version control systems as needed, wrote triggers hooks for the version control systems to enforce company policies, and aided users of the version control systems and provided tutorials.
- Supported and maintained enterprise applications which are used firm wide: Source Control, Jira, Confluence Wiki, migrated Jira and Confluence applications off from virtual to physical servers, performed the migration with minimal downtime and without the loss of any content and eliminating bottlenecks caused by application Java garbage collections.
- Aided users in utilizing enterprise applications, evaluate and implement product upgrades including new versions and either custom develop (in Java) or utilize off the shelf plugins to provide a custom yielding better productivity firm wide.
Education
BS - Computer Engineering
Purdue University
West Lafayette, INAAS - Electrical Technology
Purdue University
West Lafayette, INSkills
- Linux, Unix, C Shell (bash/ksh) Perl and Python scripting Automation
- Terraform, Chef, Kafka, Splunk, Elastic Stack
- AWS and Google Cloud
- Monitoring and logging
- Containerization technologies
- Configuration Management with git, CI/CD with Jenkins, Ansible, UC4, Autosys, GECS Job Scheduler
- LAMP Web development, Atlassian Tools (Jira, Confluence) administration and development
ADDITIONAL EXPERIENCE
- APEX SYSTEMS AT CME GROUP Software Engineer (Contract)
- DATALOGICS, INC. Development Engineer
- ENCORE CONSULTING AT CHECKFREE INVESTMENT SERVICES Data Transmission Developer (Contract)
- ORBITZ, LLC Release Configuration Management Engineer
- COGNIZANT TECHNOLOGY SOLUTIONS/TRANSUNION Build/Release Engineer
- VINZANT SOFTWARE Technical Analyst
- LUCENT TECHNOLOGIES/AT&T, Naperville, IL Software Configuration Management & SESS ODA and Database Design Engineer
Timeline
Site Reliability/Devops Engineer
CHICAGO MERCANTILE EXCHANGE GROUP
01.2020 - 01.2024
DevOps Architect (Consultant)
CAPGEMINI AT TRANSUNION
12.2019 - 06.2020
DevOps Automation Engineer (Contract)
SIGNATURE CONSULTANTS AT BANK OF AMERICA
06.2019 - 12.2019
DevOps Build & Deploy Engineer
JP MORGAN CHASE GLOBAL COMMERCIAL CARD IT
01.2013 - 01.2019
Source Control Administrator / Enterprise Application Support Engineer
PEAK6 INVESTMENTS
01.2008 - 01.2012
AAS - Electrical Technology
Purdue University
BS - Computer Engineering
Purdue University
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