Senior Mainframe Developer Vice President

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Job Overview

A Senior Mainframe Developer Vice President ​specializing in Automated Clearing House (ACH) and Electronic Data Interchange (EDI) system experience, along with application Development & Maintenance.

Responsibilities:

• Design, develop, and maintain mainframe applications using languages like COBOL, JCL, and DB2 to support critical banking operations, particularly payments and ACH processing. This includes enhancing and supporting applications using CICS, DB2, OPC Schedular, and Changeman. 

• Implement and optimize EDI solutions to meet business requirements and ensure compliance with industry standards, collaborating with cross-functional teams to translate requirements into technical specifications for EDI integrations. 

• Diagnose and resolve system issues with minimal operational disruption, providing production support for complex applications, including troubleshooting, developing, testing, and implementing fixes. 

• Work with EDI documents and possess hands-on mapping experience. Analyze complex datasets and develop effective solutions for data exchange. 

• Ensure systems comply with NACHA standards for ACH operations and other regulatory requirements. Strong knowledge of EDI standards (ANSI X12, EDIFACT) and protocols (AS2, FTP, SFTP) is essential. 

• Develop documentation, including EDI specifications, mapping documents, and standard operating procedures. Create and maintain technical documentation and user manuals for mainframe applications. 

• Partner with business stakeholders to gather requirements and deliver technical solutions. Collaborate with other developers, business analysts, and stakeholders throughout the software development lifecycle. 

Qualifications:

• 6-10 years of relevant experience in Apps Development or systems analysis role

• Proficiency in COBOL is fundamental, along with experience in JCL, CICS, and DB2. Knowledge of Assembler may also be required. 

• Strong knowledge of mainframe operating systems such as IBM z/OS, and potentially z/Linux. 

• Expertise in DB2 and SQL is crucial. Familiarity with VSAM files management is beneficial. 

• Experience with TSO/ISPF, MQ, z/OS API's, OPC Schedular, and Change man. Familiarity with Xpeditor, SDSF, and SCLM is preferred. 

• Proficiency in JCL development is essential.   

Desirable skills

• Strong knowledge of EDI standards such as ANSI X12 and EDIFACT. 

• Experience with protocols like Connect: Direct (NDM), FTP, and SFTP. 

• Proven experience with EDI mapping tools such as Sterling Integrator (GIS/B2BI), BizTalk, or similar technologies. 

•  Knowledge of XML, JSON, and other data interchange formats.  

• In-depth knowledge of banking processes, particularly ACH transactions and payments. 

• Strong understanding of NACHA rules and ACH operations. 

• Experience with payment systems like ACH PEP+, ACH Exchange is valuable 

Education:

• Bachelor’s degree/University degree or equivalent experience

• Master’s degree preferred

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

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Job Family Group:

Technology

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Job Family:

Applications Development

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Time Type:

Part time

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Primary Location:

New Castle Delaware United States

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Primary Location Full Time Salary Range:

$60,800.00 - $263,760.00

In addition to salary, Citi’s offerings may also include, for eligible employees, discretionary and formulaic incentive and retention awards. Citi offers competitive employee benefits, including: medical, dental & vision coverage; 401(k); life, accident, and disability insurance; and wellness programs. Citi also offers paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays. For additional information regarding Citi employee benefits, please visit citibenefits.com. Available offerings may vary by jurisdiction, job level, and date of hire.

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Most Relevant Skills

Please see the requirements listed above.

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Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.

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Anticipated Posting Close Date:

Sep 19, 2025

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