JCL Developer Jobs

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Senior Mainframe Developer

Citi Jacksonville, FL

4h ago

$114k - $171k/yr Full time Senior CICS COBOL

Senior CICS COBOL

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Job Description

We are seeking a Senior Mainframe Developer to lead the design, development, and deployment of new or revised mainframe applications in collaboration with the Technology team. This role focuses on guiding applications systems analysis and programming efforts to deliver impactful solutions.

Responsibilities

Collaborate with multiple management groups to ensure seamless function integration, identify system enhancements for new products, and drive process improvements.
Tackle high impact problems and projects by thoroughly evaluating complex business processes, system workflows, and industry standards.
Provide subject matter expertise and advanced programming knowledge to ensure designs align with the overall architecture blueprint.
Apply deep knowledge of system flow to establish coding, testing, debugging, and implementation standards.
Develop a comprehensive understanding of how business areas such as architecture and infrastructure interconnect to achieve goals.
Carry out in-depth analysis with interpretive thinking to define issues and develop innovative solutions.
Act as an advisor or mentor to mid-level developers and analysts, delegating work as needed.
Assess risk in business decisions, safeguarding Citi, its clients and assets by ensuring regulatory compliance, adhering to policies, exercising ethical judgment, and transparently escalating and reporting control issues.

Recommended Qualifications

5+ years of IBM mainframe development experience
Experience developing batch and online programs in COBOL
Proficiency with IBM utilities and other mainframe tools and data structures such as FileAid, Rexx, JCL, CICS, Changeman, GitHub, Expediter, TSO/ISPF, VSAM, and DB2
2+ years of experience using AI tools such as Devin AI and CoPilot
Extensive experience in system analysis and software applications programming
Experience leading and delivering successful projects
Subject Matter Expert in at least one area of Applications Development
Ability to adjust priorities quickly as circumstances dictate
Proven leadership and project management capabilities
Strong written and verbal communication skills

Education

Bachelor’s degree or equivalent experience
Master’s degree preferred

Job Details

Job Family Group: Technology
Job Family: Applications Development
Time Type: Full time
Primary Location: Jacksonville, Florida, United States
Primary Location Full Time Salary Range: $113,840.00 - $170,760.00

Benefits and Additional Information

Citi offers competitive benefits including medical, dental and vision coverage; 401(k); life, accident, and disability insurance; and wellness programs.
Paid time off packages covering planned time off (vacation), unplanned time off (sick leave), and paid holidays.
Around base pay, Citi may provide discretionary and formulaic incentive and retention awards for eligible employees.
For more details on Citi employee benefits, please visit citibenefits.com.
Available offerings may vary by jurisdiction, job level, and date of hire.

Anticipated Posting Close Date

Apr 12, 2026

Equal Opportunity

Citi is an equal opportunity employer, and qualified candidates will be considered without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any other characteristic protected by law.

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