Senior Mainframe Developer

Role Description

We are seeking an experienced Mainframe Developer Programmer Analyst 3 to support enterprise legacy system modernization and application development initiatives. The ideal candidate will have extensive experience developing, enhancing, and maintaining large-scale mainframe applications using COBOL, Natural, JCL, and DB2 technologies.

The candidate will support all phases of the Software Development Life Cycle (SDLC), including:

• Requirements analysis
• Application design
• Development
• Testing
• Troubleshooting
• Documentation
• Production support

This role will focus on:

• Integrating standardized data exchange processes into existing mainframe environments
• Modifying legacy applications
• Supporting batch processing workflows
• Ensuring reliable system performance

Candidates should have strong analytical skills, experience working with complex legacy systems, and the ability to troubleshoot and optimize highly customized mainframe applications.

Qualifications

• 8+ years of experience developing, testing, and debugging COBOL, Natural, and JCL applications in large-scale mainframe environments.
• 8+ years of experience working with DB2 tables, schemas, relational databases, and data integration.
• 8+ years of experience with mainframe batch processing, scripting, CICS/Map environments, and runtime routines.
• 8+ years of experience with Web API development including SOAP, REST, XML, and JSON integrations.
• 8+ years of experience integrating external web-service data streams into legacy mainframe applications.
• 8+ years of experience analyzing and modifying legacy application workflows and batch processing routines.
• Strong knowledge of Software Development Life Cycle (SDLC) methodologies and application development practices.
• Strong ability to test, debug, troubleshoot, and implement enterprise software applications.
• Experience analyzing complex legacy code and performing impact analysis.
• Experience with secure authentication and authorization technologies including LDAP, SAML, or OIDC.
• Strong problem-solving skills with experience supporting production systems and enterprise applications.

Requirements

• Perform advanced mainframe application development and maintenance activities.
• Develop, enhance, test, and debug COBOL, Natural, and JCL applications within enterprise mainframe environments.
• Analyze business and technical requirements and translate them into effective system solutions.
• Modify and optimize DB2 tables, schemas, and relational database structures.
• Support integration of external data exchange streams into existing mainframe processing architectures.
• Analyze and modify CICS/Map environments, runtime routines, and batch processing jobs.
• Develop and support web service integrations using SOAP, REST, XML, and JSON technologies.
• Perform application testing using data-driven development approaches.
• Troubleshoot complex software, database, and system-related issues.
• Conduct impact analysis and gap analysis on undocumented or highly customized legacy code.
• Create and maintain technical documentation, specifications, and test cases.
• Support system enhancements throughout the complete Software Development Life Cycle (SDLC).
• Ensure compliance with programming standards, security requirements, and project objectives.
• Support secure authentication and authorization implementations using enterprise frameworks.
• Perform additional duties as assigned to support project initiatives.

Company Description

PROLIM is a leading provider of end-to-end IT, PLM, and Engineering Services and Solutions for Global 1000 companies. We understand business as much as technology and help our customers improve profitability and efficiency through high-value consulting, staffing, engineering, and project management services.

• Advisory Services
• PLM Software & Services
• Program Management
• Solution Architecture
• Training & Staffing
• Cloud Solutions
• Infrastructure Services
• ERP Practices
• Quality Assurance Services
• Engineering Services across a wide range of industries