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Mainframe Developer

First Soft Solutions
New York, NY, United States
about 2 months ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience level
Expert
Experience required
7 years minimum
Working hours
Regular working hours
Job source
careerjet.com

Tech stack

Artificial Intelligence Unit Testing Customer Information Control System (CICS) COBOL (Programming Language) IBM DB2 Distributed Systems Mainframes Virtual Storage Access Methods Integration Tests

Job description

We are looking for an experienced Mainframe Developer with strong COBOL and mainframe technologies expertise. The candidate will help modernize and migrate legacy mainframe applications to distributed platforms using AI-assisted migration tools and modernization frameworks. Key Responsibilities

  • Analyze and modernize legacy mainframe applications.
  • Develop and maintain applications using COBOL and mainframe technologies.
  • Support migration of mainframe systems to distributed environments.
  • Utilize AI-based tools to accelerate code conversion and modernization.
  • Work with business teams to gather requirements and design solutions.
  • Perform unit testing, integration testing, and defect resolution.
  • Provide production support and troubleshooting when required.

Requirements

  • 7+ years of Mainframe Development experience.

  • Strong experience with:

  • COBOL
  • DB2
  • IMS
  • VSAM
  • CICS
  • Exposure to IBM Assembler is a plus.
  • Experience with batch and online processing systems.
  • Knowledge of AI-assisted migration or modernization tools is highly preferred.
  • Strong problem-solving and communication skills

Apply for this position

This job is hosted externally. Click below to view the full posting and apply.

Apply on careerjet.com

Good distractions

Talks and stories from around this role — technically off-topic, practically not.

Moments

Explore playlists

4:40 min

Analyzing COBOL mainframe migration challenges with AI

Michael Friedrich Michael Friedrich · WWC Europe 2026

2:55 min

Understanding the chore and effort of unit testing

Ewald Ewald · WWC 2024

6:35 min

Modernizing legacy COBOL mainframe systems using AI agents

Chris Heilmann +2 · LIVE

3:48 min

Modernizing massive legacy mainframe and IBM i codebases

Maximilian Jesch Maximilian Jesch · WWC Europe 2026

4:57 min

Missed edge cases in standard unit testing

Lars Hupel · WWC 2023

7:12 min

How infrastructure evolved from single mainframes to hybrid clouds

Jose Javier Alonso Moya Jose Javier Alonso Moya · WWC 2024

Videos

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Building with IBM Bob thumbnail
28:28
WWC Europe 2026 • about 1 month ago

Building with IBM Bob

Maximilian Jesch

Cloud as the new mainframe: why the cloud hype does not reflect the dev reality thumbnail
23:00
WWC 2023 • almost 3 years ago

Cloud as the new mainframe: why the cloud hype does not reflect the dev reality

Gerta Sheganaku, Waldemar Hummer

Data Fabric in Action - How to enhance a Stock Trading App with ML and Data Virtualization thumbnail
45:58
LIVE • almost 5 years ago

Data Fabric in Action - How to enhance a Stock Trading App with ML and Data Virtualization

Andreas Christian

Are you still programming unit tests or already generating? thumbnail
29:31
WWC 2023 • almost 3 years ago

Are you still programming unit tests or already generating?

Johannes Bergsmann, Daniel Bauer

".Net is too slow" was not an option thumbnail
26:13
WWC Europe 2026 • about 1 month ago

".Net is too slow" was not an option

Tomasz Woznica

Migrating from COBOL with AI: A Moonshot Demo thumbnail
8:23
WWC 2025 • 12 months ago

Migrating from COBOL with AI: A Moonshot Demo

Julia Kordick

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