Abdelrahman Hassan
+249-912-345-678 | abdelrahman.hassan@email.com | Khartoum, Sudan | linkedin.com/in/abdelrahmanhassan

PROFESSIONAL SUMMARY

Results-driven Senior Software Developer with over 15 years of experience specializing in mainframe systems, legacy application modernization, and enterprise software solutions. Proven expertise in COBOL, CICS, and JCL with a strong background in the insurance and financial services sectors. Adept at automating complex business processes, maintaining critical production systems, and delivering high-quality solutions that support millions of transactions daily.


PROFESSIONAL EXPERIENCE

Senior Software Developer
Nexus Financial Systems, Khartoum
March 2018 – Present

• Lead development and maintenance of mission-critical mainframe applications supporting life insurance and credit operations, processing over 2 million transactions monthly with 99.97% uptime
• Design and implement automation solutions using REXX scripts, reducing manual processing time by 40% and minimizing operational errors
• Collaborate with cross-functional teams to modernize legacy COBOL applications while maintaining business continuity and data integrity
• Mentor junior developers on mainframe technologies, CICS transaction processing, and best practices for enterprise software development
• Optimize JCL batch jobs and CICS online programs, improving system performance by 25% and reducing processing windows
• Participate in on-call rotation, providing 24/7 support for production systems and resolving critical incidents within SLA requirements

Software Developer
Blue Crescent Technology Solutions, Omdurman
June 2014 – February 2018

• Developed and maintained COBOL applications for insurance policy administration and claims processing systems
• Created complex JCL procedures for batch processing, data extraction, and system integration workflows
• Implemented automated testing frameworks using REXX, increasing code coverage from 45% to 78%
• Collaborated with business analysts to translate requirements into technical specifications and deliverable solutions
• Performed system analysis, debugging, and performance tuning of mainframe applications
• Supported production releases and participated in disaster recovery testing exercises

Programmer Analyst
Nile Enterprise Systems, Khartoum
August 2010 – May 2014

• Programmed and maintained COBOL/CICS applications for credit card processing and account management systems
• Wrote and debugged JCL for batch job scheduling and data file management
• Assisted in migrating legacy systems to updated mainframe platforms with minimal business disruption
• Conducted code reviews and ensured adherence to coding standards and documentation requirements
• Provided production support and resolved defects within established service level agreements


EDUCATION

Bachelor of Science in Computer Science
University of Khartoum, Khartoum
Graduated: May 2010


TECHNICAL SKILLS

Programming Languages: COBOL, Assembler, REXX, JCL
Mainframe Technologies: CICS, DB2, VSAM, TSO/ISPF, MVS/ZOS
Development Tools: File-AID, Xpediter, Endevor, Changeman
Domain Knowledge: Life Insurance, Credit Systems, Policy Administration
Methodologies: Agile, Waterfall, DevOps principles
Additional: Automation scripting, Batch processing, Performance tuning, Production support


CERTIFICATIONS

IBM Certified Application Developer - COBOL
Mainframe Application Modernization Specialist


PROFESSIONAL AFFILIATIONS

Member, International Association of Software Architects