Marco Reyes
42 Maharlika Avenue, Makati City, Metro Manila 1200
+63 917 845 2341 | marco.reyes@email.com | linkedin.com/in/marcoreyes

PROFESSIONAL SUMMARY

Results-driven Software Engineer III with 8+ years of experience in mainframe application development and support within the financial services sector. Proven expertise in COBOL, CICS, and z/OS environments with a strong track record of delivering mission-critical solutions for banking and insurance applications. Skilled in full software development lifecycle, from technical design through testing and production support, with demonstrated ability to lead offshore development teams and drive complex integration projects.

TECHNICAL SKILLS

Programming Languages: COBOL, Assembler, Java, SQL, JCL (Job Control Language)
Mainframe Technologies: z/OS, CICS, VSAM, ISPF
Development Practices: Systems Design, Technical Design, Architecture, Debugging, Technical Analysis
Testing: Integration Testing, System Testing, Regression Testing, Test Cases
Domains: Banking, Insurance, Credit Systems
Additional: Application Support, Technical Support, Offshore Team Collaboration, Remediation

PROFESSIONAL EXPERIENCE

Software Engineer III
Philbank Systems Corporation, Manila
March 2021 – Present

• Lead the design, development, and maintenance of critical COBOL/CICS applications supporting core banking operations processing over 2 million daily transactions
• Architect and implement technical solutions for business requirements, reducing system processing time by 23% through optimization of batch job streams and VSAM file structures
• Conduct comprehensive technical analysis and create detailed technical design documents for system enhancements and new feature implementations
• Perform complex debugging and root cause analysis on production issues, achieving 99.7% system uptime through proactive monitoring and rapid remediation
• Collaborate with offshore development teams across multiple time zones, providing technical guidance and code reviews to ensure quality standards
• Execute integration testing and regression testing strategies, developing automated test cases that improved defect detection rate by 35%
• Mentor junior engineers on mainframe technologies, COBOL programming standards, and best practices in z/OS environments

Software Engineer II
Insure Tech Solutions Inc., Quezon City
June 2018 – February 2021

• Developed and enhanced insurance policy administration systems using COBOL, CICS, and DB2, supporting 500K+ active policies
• Designed and implemented credit processing modules integrating with external vendor systems via batch and online interfaces
• Created and maintained JCL procedures for daily, weekly, and monthly batch processing cycles
• Participated in full SDLC activities including requirements gathering, technical design, coding, unit testing, and warranty support
• Reduced application defects by 28% through implementation of rigorous code review processes and enhanced testing protocols
• Provided Level 2 and Level 3 application support, resolving 95% of production incidents within SLA timeframes
• Collaborated with business analysts to translate business requirements into technical specifications and system designs

Associate Software Engineer
Metro Financial Technologies, Pasig City
August 2016 – May 2018

• Developed mainframe applications in COBOL and Assembler for banking transaction processing systems
• Performed system testing and integration testing for quarterly release cycles, ensuring seamless deployment of new features
• Maintained and enhanced existing legacy applications, implementing fixes and minor enhancements based on user requests
• Utilized ISPF for source code management and program compilation in z/OS environments
• Assisted in technical support activities, troubleshooting application issues and providing timely resolutions
• Documented technical procedures and created knowledge base articles for common support scenarios

EDUCATION

Master of Science in Computer Science
De La Salle University, Manila
Graduated: May 2016

Bachelor of Science in Computer Engineering
Ateneo de Manila University, Quezon City
Graduated: May 2014

CERTIFICATIONS

• IBM Certified Application Developer – COBOL
• z/OS System Programming Fundamentals

PROFESSIONAL ACHIEVEMENTS

• Recipient of Excellence Award for leading critical system migration project completed 3 weeks ahead of schedule
• Successfully coordinated Year-End processing support for 3 consecutive years with zero critical incidents
• Contributed to architecture review board for mainframe modernization initiatives