Dwayne Greene
1816 Severn Hills Lane, Severn,MD
Summary
Accomplished Senior Mainframe and Network Systems Programmer with over 30 years of extensive experience within Department of Treasury (Bureau of Engraving and Printing), specializing in Mainframe z/OS installations, maintenance, upgrades, and troubleshooting, alongside data transfer management and system performance monitoring.
Overview
37
37
years of professional experience
Work History
Network System Programmer
Insight Global
05.2023 - 11.2023
- Supporting the MARYLAND Department of TRANSPORTATION (MDOT) using the above tools.
- My responsibilities was to monitor daily Mainframe activities as stated above under Work Experience Summary as well as to support the transfer of data from the Mainframe to a upgraded Destitution System for the decommission of the Mainframe.
- I was also required to be on 24/7 call as was the same for all the below contracts.
Senior Network Systems Programmer
Koniag Technology Solutions
12.2012 - 10.2020
- I supported monitored and troubleshoot daily File Transfers to and from all states for the Department of Child Support using TCP/IP SNA and.
- CONNECT:DIRECT a File Delivery Application by Sterling Commerce.
- Also supported daily, weekly and monthly reports extracting data from the systems security files (TSS) TOP SECRET and FDR to report to Management.
Sr. Systems Programmer
Powertek Corporation
Rockville, Md
02.2007 - 10.2012
- Installed, updated, and maintained z/os operating system using SMP/E for optimal performance.
Managed installation and oversight of multiple software products including JES2, TSO/E, FDR, and HSM.
Supervised project team comprising personnel specialists, contractors, and systems programmers.
Conducted analyses on operational practices and installations for agency-wide systems.
Led technical aspects of complex projects involving Legacy systems and IBM z series configurations.
Performed analysis to resolve issues and enhance systems integration of components and procedures.
Coordinated with mainframe staff and vendors for new hardware/software installation and testing.
Telecommunication Systems Programmer
Paradigm Solutions Corporation
Rockville, Md
01.2000 - 02.2007
- Developed and maintained system software applications for diverse client needs.
- Collaborated with teams to troubleshoot and resolve software-related issues.
- Analyzed user requirements to design efficient programming solutions.
- Optimized existing code to enhance system performance and reliability.
- Conducted system tests to ensure software functionality and accuracy.
- Documented technical specifications for future reference and maintenance.
- Provided training and support to junior programmers on best practices.
- Implemented security protocols to protect sensitive data within systems.
- Established automatic communication pathways between devices and control panels.
- Performed system integration testing of software applications.
- Resolved application issues related to system programming tasks.
- Optimized existing code base by refactoring code where necessary for improved efficiency.
- Established device networks in homes and businesses.
- Troubleshot problems with existing system programs to identify root causes of issues or errors.
- Gathered and reviewed data on system performance and load to identify and prevent issues.
- Configured various computer components such as network devices, switches, routers, firewalls according to customer requirements.
- Provided technical support for system programs and applications.
- Updated documentation detailing changes made to the system programming environment over time.
- Tested new software releases prior to implementation into production environments.
- Input OS programming for needs and applications across locations.
- Implemented security protocols to protect sensitive data from unauthorized access.
- Patched systems with latest firmware to optimize service and functionality.
- Identified areas for improvement in existing system programming codebase.
- Assisted with the deployment of new hardware components into production environments.
- Monitored performance of the systems on a regular basis to ensure optimal performance levels are maintained at all times.
- Developed tests to verify implementation of project requirements and enhance customer satisfaction.
- Delivered software solutions consistent with product roadmap and meeting release plan milestones.
- Implemented security protocols to protect data and ensure compliance with standards.
- Developed and executed comprehensive testing plans to ensure application quality.
- Participated in code reviews to maintain high development standards.
- Designed, developed, and implemented software applications according to specified requirements.
- Provided technical support and guidance to users and other team members.
- Monitored application performance metrics and implemented optimizations.
Telecommunication Systems Programmer
Automated System and Programming
Bethesda, Md
01.1993 - 01.2000
- See above for the current client and the same client mentioned above.
Telecommunication Systems Programmer
Network Solutions
Herndon, VA
01.1987 - 01.1993
- See the above duties. Again, the same client.
Education
Bachelor's Degree - Computer Science, Business Administration
Bishop College
Dallas, Texas01.1978
High School Diploma -
Erasmus H.S.
Brooklyn, NY01.1974
Skills
- Mainframe programming
- Data transfer management
- Software installation
- System performance monitoring
- Security protocol implementation
- Technical documentation
- Systems analysis
- Troubleshooting skills
- Project coordination
- Team leadership
- Effective communication
- Problem solving
- Attention to detail
- Hardware abstraction knowledge
- Documentation expertise
- Customer request management
- Real-time systems experience
- Network programming proficiency
- Software expertise
- System security practices
- Continuous integration tools experience
- Parallel computing skills
- Device installation and configuration
- Network protocols knowledge
- Operating systems understanding
- Customer service orientation
- IT project coordination skills
- Software development proficiency
- User requirements analysis
- Integration testing expertise
- Data integration strategies
References
- Mr. Steven P. Hedlund, Chief, Office of IT Operations Division, Department of the Treasury (BEP), 240-398-4751, steve.hedlund@verzion.net, Professional
- Mr. Cecil Maccannon, Manager, Federal Aviation Administration, 410-227-7366, cecilsenior@yahoo.com, Professional
- Mr. Robert Mungin, Manager, Enterprise Strategic Planning & Management, Department of the Treasury (BEP), 202-874-6111, robert.mungin@bep.treas.gov, Professional
- Mr. Harold Witt, President, Texcom/Sysnet Conglomerate, 202-882-0627, hwitt@sysnetamerica.com, Professional
Work Experience Summary
I have over 32 years’ experience as a Systems Programmer and a Telecommunications Systems Programmer. I have been responsible for installing, updating and maintaining the current software including the production z/OS1.18 operating system using SMP/E. Other Software product that I have installed and am responsible for are JES2, TSO/E, Total DASD Management System (FDR); Hierarchical Storage Management (HSM); Data Facility Storage Management Subsystem (DFSMSdfp); Tape Management System (CA-1); Point in Time Copy (FLASHCOPY); Hardware Configuration System (HCD); Virtual Telecommunications Access Method (VTAM), Transmission Control Protocol (TCP/IP), Network Control Program (NCP), IBM Network Monitor (NetView), VTAM Printer Support (VPS); Job Scheduler (CA-OPERA); Interactive Output Facility (IOF), Joblog Management and Retrieval (JMR); File Delivery Application (CONNECT:DIRECT); Configuration Change Management Software (ChangeMan); System Monitor. Oversee project team that includes personnel specialist, contractors, and computer operators, and less experienced systems programmers and analysts. Plan and conduct analyses of projected work processes, operational practices, installations, and maintenance for an agency-wide system. Lead and direct the technical aspects of complex and large scale development projects involving Legacy systems to include mainframe hardware configurations, documentation and schematics for the IBM z series systems which consist of all IBM TotalStorage DS6000 Systems as well as supporting the IBM TotalStorage 3500 Tape Library with 3592 Tape Encryption. I perform analysis that support problem resolution activities and implement major enhancements for established systems integration of system components, procedures, database policies, software, and hardware by coordinating project activities with mainframe systems software and hardware staff, and IT security staff. Also utilizing support by coordinating with vendor’s representatives in the installation and testing of all new Mainframe hardware and software.
Advanced Technical Training
- Advanced Cisco Router Certification
- CISCO SNA Configuration for Multiprotocol Administrators
- TCP/IP Certification Training
- SNA/IP Integration Certification Training
- IBM Network Control Program Certification
- RACF, Top Secret Security and Audit Training
Affiliations
- Diaster Recovery testing.
· Advanced Cisco Router Certification
· CISCO SNA Configuration for Multiprotocol Administrators
· TCP/IP Certification Training
· SNA/IP Integration Certification Training
· IBM Network Control Program Certification
· RACF, Top Secret Security and Audit Training
Accomplishments
- Installation, upgrades and customization of multiple z/OS systems as well as all required OEM products.
References
References available upon request.
Timeline
Network System Programmer
Insight Global
05.2023 - 11.2023
Senior Network Systems Programmer
Koniag Technology Solutions
12.2012 - 10.2020
Sr. Systems Programmer
Powertek Corporation
02.2007 - 10.2012
Telecommunication Systems Programmer
Paradigm Solutions Corporation
01.2000 - 02.2007
Telecommunication Systems Programmer
Automated System and Programming
01.1993 - 01.2000
Telecommunication Systems Programmer
Network Solutions
01.1987 - 01.1993
Bachelor's Degree - Computer Science, Business Administration
Bishop College
High School Diploma -
Erasmus H.S.