Mainframe Applications Development Sr Programmer Analyst, Citi

Citi

Location:
United States, New Castle

Category:
IT - Software Development

Contract Type:
Employment contract

Salary:

Not provided

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Job Description:

Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

Job Responsibility:

Develop, maintain, and enhance mainframe applications
Analyze business requirements and design technical solutions
Write and test COBOL, JCL, and other mainframe code
Debug and resolve application issues
Optimize application performance
Create and maintain technical documentation
Collaborate with other developers, business analysts, and stakeholders
Participate in code reviews
Stay up-to-date on new mainframe technologies.

Requirements:

Experienced in Financial services and account receivables and payments product processors and kwnoledgable of the various industry standards and file formats specification such as EDI, ACH, XML, BAI/BAI2, Comma or Pipe delimet files as well as Sequential text fomatting
Proficiency in COBOL including a deep understanding of COBOL syntax, data structures, and program control flow
Expertise in JCL for submitting jobs, managing datasets, and controlling the execution of programs on the mainframe
Familiarity with REXX scripting language
Strong experience with DB2 relational database management system including SQL, database design, performance tuning, and data management
In-depth knowledge of CICS for developing online transaction processing applications
Understanding of VSAM file structures and access methods
Knowledge of sequential file processing techniques
Solid understanding of the z/OS operating system
Familiarity with different SDLC methodologies
Strong analytical and problem-solving skills for debugging complex mainframe applications
Experience in optimizing mainframe applications for performance
Understanding of mainframe security concepts and best practices including RACF or other security systems
Experience in testing mainframe applications
Ability to create clear and concise documentation for mainframe applications.

Nice to have:

Experience with DevOps practices and tools in a mainframe environment
Experience in automating mainframe tasks using scripting languages or tools
Knowledge of integrating mainframe applications with cloud platforms
Experience in modernizing mainframe applications using new technologies.

What we offer:

Medical, dental, vision coverage
401(k)
Life, accident, and disability insurance
Wellness programs
Paid time off packages including planned time off, unplanned time off, and paid holidays.

Additional Information:

Job Posted:
October 11, 2025

Expiration:
October 16, 2025

Employment Type:

Fulltime

Work Type:

Hybrid work

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Mainframe Applications Development Sr Programmer Analyst