Mainframe Developer

Delan Associates, Inc; Bloomington (IL); On-site; USD 100,000 - 130,000; Full time

Job summary

Delan Associates, Inc is looking for an experienced Mainframe Developer to work onsite in McLean, VA. Candidates must be available for face-to-face interviews and ideally have expertise in the Banking domain. This role involves designing, developing, maintaining, and supporting critical mainframe applications.

The ideal candidate will possess strong skills in COBOL, JCL, and DB2, among other mainframe technologies, to deliver robust solutions that enhance banking processes.

Qualifications

• Strong expertise in COBOL, JCL, DB2, CICS, and VSAM.
• Hands-on experience in developing mainframe applications.
• Solid understanding of banking processes like deposits and loans.

Responsibilities

• Design, develop, test, and maintain IBM Mainframe applications.
• Analyze business requirements and convert them into technical solutions.
• Troubleshoot production issues and optimize application performance.

Skills

COBOL

JCL

CICS

DB2

VSAM

IMS (preferred)

TSO/ISPF

IBM z/OS

File-AID

Endevor, Changeman, or ISPW

SDSF

SPUFI

Database

SQL

Version Control

Git (preferred)

Scheduling Tools

CA-7

Control-M

OPC/TWS (preferred)

Job description

Position: Mainframe Developer (Banking Domain)

Location: McLean, VA (Onsite, 5 days/week)

Note: This position is open to local candidates in McLean, VA only. Face-to-face (F2F) interviews are mandatory, so candidates must be available to attend an in-person interview.

Job Summary

We are seeking an experienced Mainframe Developer with strong expertise in the Banking domain to design, develop, maintain, and support mission‑critical mainframe applications. The ideal candidate should have hands‑on experience with COBOL, JCL, DB2, CICS, VSAM, and IBM mainframe technologies, along with a solid understanding of banking processes such as deposits, loans, payments, cards, or core banking.

Key Responsibilities

• Design, develop, test, and maintain IBM Mainframe applications
• Analyze business and functional requirements and convert them into technical solutions
• Develop and enhance applications using COBOL, JCL, CICS, DB2, and VSAM
• Create and modify JCLs for batch processing and job scheduling
• Perform code reviews, unit testing, integration testing, and production support
• Troubleshoot production issues and perform root cause analysis
• Optimize application performance and improve batch processing efficiency
• Work with business analysts, QA teams, and stakeholders throughout the SDLC
• Participate in system upgrades, migrations, and application modernization initiatives
• Maintain technical documentation and follow development standards

Required Skills

• COBOL
• JCL
• CICS
• DB2
• VSAM
• IMS (preferred)
• TSO/ISPF
• IBM z/OS
• File‑AID
• Endevor, Changeman, or ISPW
• SDSF
• SPUFI
• Database
• SQL
• Version Control
• Git (preferred)
• Scheduling Tools
• CA-7
• Control‑M
• OPC/TWS (preferred)