Mainframe Developer

United States Digital Space LLC; Karnataka; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

United States Digital Space LLC is seeking a skilled Senior Software Engineer to focus on Mainframe development and cloud integration. The role requires robust experience in COBOL, PL/I, and DB2, with responsibilities including designing, developing, and supporting integration solutions between legacy and cloud systems.

The ideal candidate will engage in Mainframe modernization initiatives and facilitate reliable data movement using IBM MQ. A Bachelor’s degree in a related field and a minimum of 5 years of experience are essential for this full-time position.

Qualifications

• 5+ years of experience in Mainframe development, data integration, and enterprise messaging solutions.
• Strong understanding of Mainframe application architecture and system design principles.
• Experience in production support and troubleshooting Mainframe applications.

Responsibilities

• Design, develop, enhance, and maintain Mainframe applications using COBOL, PL/I, and CICS.
• Implement and support messaging solutions using IBM MQ to facilitate reliable data movement.
• Support Mainframe modernization initiatives by integrating legacy systems with AWS services.

Skills

COBOL

PL/I

CICS

DB2

JCL

IBM MQ

Education

Bachelor’s degree in computer science or related field

Tools

IBM App Connect Enterprise (ACE)

AWS Lambda

API Gateway

Job description

Job Title

Senior Software Engineer

Position

Mainframe PL1

Experience

5-12yrs

Category

Software Development/Engineering

Shift

General

Main location

Bangalore/Chennai/Hyd

Employment Type

Full Time

Education Qualification

Bachelor’s degree in computer science or related field or higher with minimum 5 years of relevant experience.

Job Summary

We are seeking a highly skilled Mainframe Integration Engineer with 5+ years of experience in Mainframe development, data integration, and enterprise messaging solutions. The ideal candidate will possess strong expertise in COBOL, PL/I, CICS, DB2, JCL, and messaging technologies, with experience supporting modernization and integration initiatives between Mainframe and cloud-based platforms. This role will focus on designing, developing, and supporting data movement, integration patterns, and coexistence strategies between legacy Mainframe applications and modern AWS-based services.

Responsibilities

• Design, develop, enhance, and maintain Mainframe applications using COBOL, PL/I, and CICS.
• Develop, modify, and support DB2 database components, batch processing modules, and JCL jobs.
• Implement and support messaging solutions using IBM MQ or similar Mainframe messaging technologies to facilitate reliable data movement.
• Collaborate with application, infrastructure, and integration teams to ensure seamless communication between Mainframe and distributed systems.
• Build and support enterprise integration solutions using IBM App Connect Enterprise (ACE) and message flows for data transformation, routing, and orchestration.
• Assist in Mainframe modernization initiatives by integrating legacy systems with AWS services and REST-based APIs.
• Support implementation of Change Data Capture (CDC), asynchronous messaging, and event-driven integration patterns.
• Participate in system analysis, design reviews, performance tuning, troubleshooting, and production support activities.
• Ensure data consistency, reliability, and security during migration and coexistence phases between Mainframe and cloud environments.
• Create and maintain technical documentation, operational procedures, and support materials.
• Work closely with business stakeholders, architects, and development teams to deliver scalable integration solutions.

Required Qualifications

• Strong hands‑on experience in COBOL, PL/I, and CICS development and support.
• Extensive experience working with DB2 databases, Batch Processing, and JCL (Job Control Language).
• Proven expertise in IBM MQ or similar Mainframe messaging and queuing technologies for enterprise data movement and integration.
• Solid understanding of Mainframe application architecture, system design principles, and integration patterns.
• Experience in production support, troubleshooting, debugging, root cause analysis, and performance optimization of Mainframe applications.
• Strong knowledge of Software Development Life Cycle (SDLC) methodologies and experience working in Agile/Scrum environments.

Good to Have

• Experience with IBM App Connect Enterprise (ACE) and Enterprise Service Bus (ESB) solutions.
• Familiarity with AWS services such as AWS Lambda, API Gateway, Amazon SQS, Amazon SNS.
• Understanding of REST APIs and cloud integration concepts.
• Exposure to Event-Driven Architecture (EDA) and Publish/Subscribe messaging models.
• Experience implementing or supporting Change Data Capture (CDC) solutions.
• Knowledge of hybrid architecture patterns involving Mainframe and cloud platforms.
• Experience with data migration, modernization, and digital transformation programs.
• Familiarity with DevOps, CI/CD pipelines, and automated deployment practices.

The company is an equal opportunity employer. In addition, the company is committed to providing accommodation for people with disabilities in accordance with provincial legislation. Please let us know if you require reasonable accommodation due to a disability during any aspect of the recruitment process and we will work with you to address your needs.