Summary
Overview
Work History
Education
Skills
Awards
Training
Timeline
Generic

Esteban (Steve) De Leon

San Antonio,Texas

Summary

To obtain a challenging position in the software technology space as either a Scrum master, Product Owner, SRE or Development Lead and/or leadership roles that will capitalize on existing skills, create new skills enabling professional growth.

Overview

30
30
years of professional experience

Work History

Senior Solutions Reliability Engineer (SRE IV)

Capital Group
04.2006 - 09.2024
  • Started as contract to hire via Saphire Technologies as a Software Analyst then hired as a Capitol Group full time associate. The latest roles included: Scrum Master for multiple teams (Scrum&Kanban) facilitating all ceremonies for the CI/CD platforms on the DevOps team, creating the Enterprise Agile learning program on the Degreed learning platform and contributing to Capital’s Agile Guild.
  • American Funds Services (AFS)
  • Helped design, develop and support multiple .NET, Java applications. These applications included desktop applications, middle-ware services and batch application.
  • Transitioned to the AFD Rollout team. Team lead of 6. As a lead, I was able to help development teams transition to the standard tool-set and processes for release management.
  • American Funds Distribution (AFD)/AFS and Capital Bank & Trust (CBT)
  • I then transitioned to team lead of 5 of the AFD/AFS (L2) support team. Duties included, 24/7 support. xMatters was used to setup on-call rotations for myself and team members. I was able to ensure team members had appropriate access to all AFS/AFD applications. I contributed to many support documentation to assist team members resolve common issues found in applications, worked with Capital Group vendors to resolve issues impacting Capital Group applications.
  • Internally trained in the ITIL framework and incorporated Capital Groups ITIL based standards into the team.
  • The organization started incorporating Splunk into the enterprise. I was again internal trained in Splunk and help create various alerts and dashboards within Splunk for support purposes.
  • The team also started support for Capital Groups Digital team supporting the capgroup.com applications and services.
  • I was selected as lead to represent all L2 support teams (30+) in the enterprise to help transition from the legacy Remedy solution to ServiceNow for the enterprise.
  • After the enterprise successfully migrated to ServiceNow, I was nominated to the ITG Excellence award for my work performed.
  • I was then selected to represent the L2 supports teams in Capital Group’s Agile Guild (a group of selected individuals to help push Agile across IT departments). At this point I was trained in the Agile methodology and help apply the Agile principles into the support teams.
  • At this point. I started to perform the Scrum Master role for the AFS/AFD team.
  • While performing my L2 and Scrum master roles, I was selected to be part of a DevSecOps POD to learn and apply the DevSecOps mindset within the organization.
  • During my time in the DevSecOps POD, I was able to create the Enterprise Agile Learning program using the Degreed platform.
  • While on the DevSecOps POD, I was also engaged to assist with Digital’s team release management process. During this time, I utilized the existing Capital’s XL Release instance to create a custom XLR template and utilizing an Ansible Tower plug-in to create a standard way of releasing software to capgroup.com. After many late nights of releasing and improving the XLR template, I was able to help reduce release times from an all night event to about 1 hour. This helped the Digital team stream line their process and consistency when releasing software.
  • After my duties on the DevSecOps POD, I was recognized in an internal article from a senior leader involved in the POD, how process and consistency was so important.
  • That year I achieved the highest rating possible with Capital Group in my yearly performance review.
  • I then transitioned to Capitals Release team lead of 6. Here I was asked to lead and execute a project called “Hands-free Release”. The mindset was to eliminate the need to have a dedicated release team and pass ownership of software releases to development teams while adhering to regulatory rules for financial companies.
  • As lead of the Release team, we utilized the services of ServiceNow and XLDeploy to create the “Self-Service Release” effort. Utilizing these tools we were able to successfully implement a process where application developers could leverage these tools to allow development teams to execute their application releases.
  • During this time I was internally trained on AWS.
  • While on this team, we were able to utilize AWS to create an AWS dashboard as a “front-end” to the internal implementation of the “Self-Service Release” effort.
  • I was then asked by senior management to transition to the new DevSecOps team that was struggling to deliver value.
  • DevSecOps team
  • While on the DevSecOps team I was asked to perform the Scrum Master role for the Banzai (CI/CD) product using Harness.
  • On this team I help setup the Agile related components to help the team to deliver value and achieved those goals within my 1st year.
  • I was then asked to perform the Scrum Master role for the DevSecOps Enablement team and DevHub products housing templates and documentation for Harness. This would enable application teams to on-board to Harness quicker.
  • While on this team, I was still involved in the Agile Guild, SRE Guild and now DevSecOps guild to help spread the Agile, DevSecOps and SRE mindsets across the enterprise.

Senior Software Developer

Karta Technologies Inc.
09.2004 - 04.2006
  • Served as a Senior Software Developer on various projects. Lead developer of 3 for the TransTRAK GPS asset tracking system. TransTRAK is a real-time, web based, GPS asset tracking system utilizing technologies such as Java, Resin, JSP, JMS, Hibernate, PostgreSQL and the WebTech WT5000+4000 GPS location units. Lead developer of the Bill of Material Interface Tool (BOM-IT). BOM-IT is a Java web application used to interface with potentially any BOM database implementing our WSDL definition. The BOM-IT application is deployed on the JBoss application server and utilizes technologies such as web service, Java Server Faces, and Hibernate connecting to an Oracle database. I also oversee all company related MS SharePoint Portal/Services development efforts (C# and site template design and development). Other duties include:
  • Setting up and configuring MS SharePoint Portal server for corporate intranet and SharePoint Services for project management.
  • Participated in training, meetings and reviews for the company CMMI efforts.
  • Perform analysis and cost new software development efforts.
  • Interface with client and third party vendors.
  • Troubleshoot and identify system issues.
  • Perform customer support and 24/7 on call duties for the TransTRAK application.
  • Design, implement and deliver software enhancements and release patches.
  • Assist with RFP response efforts (Technical Approach, analysis and presentations).

Software Developer

PROS Revenue Management
10.2001 - 10.2003
  • Worked as a Software Developer on multiple projects. PROS delivers web enabled solutions to maximize client revenue in different business domains. These applications utilize state of the art revenue forecasting and revenue optimization models and are implemented within a Java based framework using XML, XSL, JavaScript, JDBC, Servlets and CORBA. Major emphasis placed on User Interface (MVC Model 2) development using XML, XSL, HTML, JavaScript and Java.
  • Designed and developed Reporting component. Component included DTD for XML, XSL Template, Java class component, and UI layout and functionality using DHTML.
  • Assisted in requirement analysis and prototype creation, and documentation.
  • Performed onsite system installation/configuration, documentation, and provided customer support.
  • Assisted with Oracle database creation scripts and SQL update scripts.
  • Assisted with defect resolutions and presented new enhancements and ideas for the Java framework.

Senior Software Developer

GHG Sub-Contractor at Lockheed Martin
06.2000 - 10.2001
  • As a Senior Software developer, I worked on two different projects at Lockheed. The first project was the Scheduling Web Interface System (SWIS) for NASA. The SWIS project was the scheduling tool used by NASA to schedule antenna time for satellites of NASA’s customers. SWIS was a web-based application consisting of Swing applet clients communicating via HTTPS to an iPlanet web server which then communicated with Oracle via JDBC.
  • Created Swing applet and Servlet prototype using the Apache-Tomcat web server.
  • Led and created the Applet and Java Servlet/JSP framework used in the final product.
  • Created Gnatt timeline display using Java 2D graphics.
  • Migrated server code from Apache-Tomcat to the iPlanet web server.
  • Also assisted with requirement analysis, testing and documentation.
  • The second project at Lockheed Martin was the MCC resource-scheduling tool for NASA. The application managed some of NASA’s resources. The application was a Java Swing application built using the Visual Cafe IDE. The application interfaced with the MS Access database via ODBC.
  • Led the design and development of the MCC resource application.
  • Created the MS Access and ODBC data source.
  • Created all documentation and installation notes for the application.
  • Provided support and maintained defect list and provided updates as needed.

Senior Software Developer

GHG Corporation
09.1999 - 10.2001
  • Served as Senior Software developer on two different contracts at IBM and Lockheed Martin. Also, as a GHG employee, I assisted with in-house training of C++ and X-Windows training classes.

Senior Software Developer

GHG Sub-Contractor at IBM
06.1999 - 06.2000
  • Served as a Senior Software developer on IBM’s Point of Sales system created for the US Post Office. Primary UI developer with the ability to quickly provide solutions for application errors found in the field. The system is a multi-threaded; multi-application based system interfacing with devices such as printers, scanners, scales and touch screen monitors running on Windows NT 4.0. The application is a C++ application built using IBM’s Visual Age class library.
  • Assisted in the costing, design and implementation of the Point of Sales system.
  • User Interface design/implementation using Visual Age and Win32 API’s.
  • Assisted with device driver enhancements to RS-232.
  • Responsible for tendering business logic for the Point of Sales system.
  • Assisted with process improvement, to help IBM achieve an SEI Level 4 rating.
  • Provided customer support and defect resolution.
  • Appointed as moderator for code reviews.
  • Primary contact to the Visual Age compiler team to provide updates and enhancements.

Senior Software Developer

Compaq Computers
08.1996 - 09.1996
  • Served as Senior Software developer and support person. Assisted with the development and supporting efforts of internal inventory management systems. Theses systems were backed systems written C++ to help process out put generated from SAP. The output contained inventory information to help assist other systems determine the best location to assemble PCs for customer orders.

Senior Software Developer

Lockheed Martin
08.1994 - 08.1996
  • Served as Senior Software developer and Sustaining Engineering Lead for NASA’s Consolidated Planning System (CPS). The CPS is the planning system that is used to plan all activities that occur for every Space Shuttle mission and Space Station activities. The system utilizes scheduling libraries that assist with the scheduling of defined resources and conditions. The C++ application is built on top of a UNIX platform using the X-Motif libraries. The application also interfaced with an Oracle database.
  • Sustaining Engineering team lead of 6. Responsibilities included defect analysis and resolution and dividing defects among team members.
  • Served as Configuration and build Manager. All source code was stored in SCCS and then was migrated to Continuous version control.
  • Created UI Designs and conducted presentations to the NASA administrators and users.
  • Designed and developed various system components for the CPS application.
  • Created the Application Integration Test document for CPS.

Education

BS - Computer Science

Southwest Texas State University
01.1994

Skills

    - Team Leadership

    - Agile Mindset

    - DevSecOps Mindset

    - Cross-functional team engagement

    - Mentorship

    - Complex problem solving

    - Process improvement

    - Thinking out-of-the box

Awards

Karta “Can do” recognition (2004, 2005), GHG Personal Achievement Award (2001, 2000, 1999, 1997, 1996), Tier 3 Personal Achievement Award form Loral Space Information, The Lyndon B. Johnson Space Center Group Achievement Award from NASA

Training

  • Guiding Meetings Workshop, Capitol Group, 10/2007
  • Fatwire training, Capitol Group, 8/2006
  • Diminishing Manufacturing Sources and Materials Shortages (DMSMS) for Executives, DLA, 12/2005
  • DLA DMSMS Essentials Course, DLA, 12/2005
  • Introduction to CMMI Training, Karta Technologies Inc., 10/2005
  • Project Server Professional 2003”, New Horizons, 8/2005
  • JavaScript”, GHG Corporation, 7/2000
  • Motif Programming using C”, GHG Corporation, 8/95
  • Software Inspection”, Loral Corporation, 2/95

Timeline

Senior Solutions Reliability Engineer (SRE IV)

Capital Group
04.2006 - 09.2024

Senior Software Developer

Karta Technologies Inc.
09.2004 - 04.2006

Software Developer

PROS Revenue Management
10.2001 - 10.2003

Senior Software Developer

GHG Sub-Contractor at Lockheed Martin
06.2000 - 10.2001

Senior Software Developer

GHG Corporation
09.1999 - 10.2001

Senior Software Developer

GHG Sub-Contractor at IBM
06.1999 - 06.2000

Senior Software Developer

Compaq Computers
08.1996 - 09.1996

Senior Software Developer

Lockheed Martin
08.1994 - 08.1996

BS - Computer Science

Southwest Texas State University

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