Dinesh Margana
Frisco
Summary
IT professional with 2+ years of experience in Mainframe development (COBOL, DB2, JCL) and Network support (LAN/WAN, routers, switches, VPN, firewalls). Skilled in developing, testing, and maintaining core banking applications with a focus on data integrity, security, and regulatory compliance. Proficient in network troubleshooting, performance monitoring, and end-to-end connectivity support. Experienced in collaborating with cross-functional teams, supporting UAT and system testing, and implementing technical solutions aligned with business requirements. Recognized for strong problem-solving abilities, adaptability, and commitment to delivering reliable IT solutions in enterprise environments.
Overview
4
4
years of professional experience
Work History
Application Development Associate
Accenture India
09.2022 - 12.2023
- Developed and maintained COBOL (Batch & Online) programs to support core banking applications, including account processing, transactions, and customer records.
- Designed, executed, and optimized DB2 SQL queries (SELECT, INSERT, UPDATE, DELETE) to ensure accurate and high-performance data processing.
- Worked extensively with JCL to create, schedule, and troubleshoot batch jobs, ensuring timely end-of-day and month-end processing.
- Performed production support activities, including job abend analysis, data fixes, and root-cause analysis in a high-availability banking environment.
- Analyzed business requirements and translated them into technical specifications in compliance with Bank of America banking standards.
- Implemented performance tuning and code optimization to improve batch processing efficiency and reduce run-time.
- Ensured data integrity and security by following banking compliance and audit guidelines, including secure DB2 access controls.
- Used File-AID and SPUFI for data analysis, validation, and DB2 table management.
Network Support Engineer
ROBOMOTO Technologies
08.2019 - 07.2022
- Provided L1/L2 network support for enterprise environments, ensuring high availability of LAN/WAN infrastructure.
- Troubleshot network issues related to TCP/IP, DNS, DHCP, VLANs, VPNs, and routing, reducing downtime and improving user experience.
- Configured and supported routers, switches, and firewalls (Cisco/Juniper) under change management procedures.
- Monitored network performance using network monitoring tools and proactively responded to alerts and incidents.
- Investigated and resolved connectivity issues, including packet loss, latency, Wi-Fi, and VPN access problems.
- Managed and resolved incidents through ticketing systems (ServiceNow/Jira), meeting SLAs and escalation guidelines.
- Assisted with network security operations, including firewall rule reviews, access control, and vulnerability remediation support.
- Supported network upgrades, patching, and maintenance activities during scheduled change windows.
- Conducted root cause analysis (RCA) for recurring network issues and documented preventive actions.
Education
Master of Computer & Information Science -
Southern Arkansas University
08-2025
Bachelor's - Electronics and Communication Engineering
Jawaharlal Nehru Technological University
05-2019
Skills
- Mainframe Application Development
- COBOL / COBOL II
- JCL (Job Control Language)
- DB2 (SQL, Stored Procedures, Performance Tuning)
- CICS (Online Transaction Processing)
- TSO/ISPF
- Batch Processing & Scheduling
- File Handling (Sequential, VSAM)
- Banking & Domain Skills
Banking & Financial Services Applications
Core Banking Systems
Transaction Processing Systems
Regulatory & Compliance Awareness
Data Integrity & Security - Tools & Utilities
IBM Mainframe (z/OS)
Networking: TCP/IP, DNS, DHCP, VLANs, VPN, Routing & Switching
Tools: Wireshark, Ping, Traceroute, ServiceNow, Network Monitoring Tools
Security: Firewalls, ACLs, VPN, Basic Network Security
Platforms: Windows, Linux
Timeline
Application Development Associate
Accenture India
09.2022 - 12.2023
Network Support Engineer
ROBOMOTO Technologies
08.2019 - 07.2022
Master of Computer & Information Science -
Southern Arkansas University
Bachelor's - Electronics and Communication Engineering
Jawaharlal Nehru Technological University