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Mainframe Legacy Modernization Engineer

Jersey City, NJ, US • Posted 5 hours ago • Updated 17 minutes ago

Contract Independent

Contract W2

Contract Corp To Corp

On-site

Fitment

Dice Job Match Score™

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Job Details

Skills

Cobol
DB2
JCL
CICS
MQ
VSAM
Mainframe Modernization
Mainframe Development
z/OS utilities

Summary

Role: Mainframe Legacy Modernization Engineer

Location: Jersey City, NJ (Onsite from Day 1) - Locals highly preferred

Job Type: Contract

*LOCAL CANDIDATES ONLY*
*THE CLIENT INTERVIEW MAY BE IN-PERSON OR VIRTUAL, CANDIDATES MUST BE OPEN TO BOTH*
*Mainframe - CICS IS A MANDATORY SKILL*]

Skill Metrics:

DB2	Yes
Cobol	Yes
Mainframe CICS	Yes
VSAM	Yes

Job Description:

Analyze complex mainframe applications (COBOL, CICS, JCL, DB2, VSAM, MQ) to understand business rules, data flows, batch cycles, and system interdependencies.
Perform inventory analysis, call-chain analysis, and functional decomposition of monolithic applications.
Extract and document technical and business rules using automated discovery or reverse-engineering tools.
Design and implement modernization strategies including re-host, re-platform, re-factor, re-architect, replace, or retire approaches
Convert or refactor legacy COBOL logic into modern languages such as Java using automated tools or manual re-engineering techniques.
Apply incremental modernization patterns such as strangler-fig and coexistence models to reduce migration risk.
Modernize JCL-based batch processes into cloud-native batch frameworks (e.g., Spring Batch, workflow orchestration).
Support migration or re-engineering of scheduling, file transfer, and output management components.
Ensure functional parity and data integrity between legacy and modernized systems.

Job Requirements:

8 10 years of overall IT experience with a strong focus on mainframe application development and modernization.
Expert-level proficiency in COBOL and CICS transaction programming
Strong command of JCL, z/OS utilities (SORT, IDCAMS, IEBGENER), and batch processing
Deep knowledge of DB2 - SQL optimization, bind/rebind, and performance tuning for large financial datasets
Solid experience with VSAM file structures and access methods
Experience with API design, REST services, and integration middleware.
Knowledge of modernization patterns such as re-host, re-platform, re-write, and strangler-fig approaches.
Experience and knowledge working in Banking domain

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Dice Id: 91091604
Position Id: 2026-3782
Posted 5 hours ago

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