Senior Application Programmer – Mainframe Systems

Job Information

• Date Opened 09/14/2026
• Job Type Full time
• Industry Technology
• Remote Job

Job Description

This is a remote position.

About the Company

At Advancio, we build high-performing technology teams that solve complex business challenges through innovation, collaboration, and technical excellence. We are looking for an experienced Senior Mainframe Application Programmer to join our team and contribute to the development, maintenance, and modernization of critical enterprise systems.

Position Summary

The Senior Mainframe Application Programmer is responsible for designing, developing, testing, implementing, and supporting complex mainframe applications and enterprise systems. This role requires deep expertise in mainframe technologies, strong problem-solving skills, and the ability to lead technical initiatives while collaborating with cross-functional teams.

The ideal candidate has extensive experience in COBOL-based environments, mainframe databases, transaction processing systems, and enterprise application architecture.

Key Responsibilities

• Design, develop, enhance, and maintain complex mainframe applications and software solutions.
• Analyze business and system requirements and translate them into scalable technical solutions.
• Create and maintain application architecture, technical specifications, and program documentation.
• Develop, test, debug, and implement software enhancements and new functionality.
• Work closely with business stakeholders and technical teams to validate requirements and ensure successful delivery.
• Troubleshoot production issues and provide ongoing application support.
• Perform system integration activities between hardware and software components.
• Conduct code reviews and ensure adherence to development standards and best practices.
• Optimize system performance, reliability, scalability, and maintainability.
• Ensure compliance with security, governance, and information assurance standards. Evaluate and recommend emerging technologies and process improvements.

Requirements

Education

• Bachelor's Degree in Computer Science, Information Technology, Software Engineering, or a related field.
• Equivalent professional experience may be considered in lieu of formal education.

Experience

• Minimum of 7 years of hands-on experience in mainframe application development and programming.
• Minimum of 7 years of experience working with IMS, DB2, COBOL, and CICS in enterprise mainframe environments.
• Proven experience in software development lifecycle methodologies including analysis, development, testing, deployment, and support.
• Experience working with large-scale transactional systems and mission-critical applications.

Technical Skills

Programming Languages & Technologies

• COBOL
• Natural / SuperNatural
• IMS DB/DC
• DB2 / SQL
• Assembler
• SAS
• CICS
• MF FOCUS

Mainframe Tools & Utilities

• MVS JCL
• MVS TSO / ISPF
• IBM OPTIM
• FILE Manager
• SPUFI
• ICEMAN / ICETOOLS
• SORT
• VSAM
• CLIST
• FTP
• DYL260 / DYL280
• CA Gen (CoolGen)
• CA Endevor
• CA Spool
• CA OM Web Viewer
• IBM WebSphere
• Debugger
• N2O

Databases

• DB2
• IMS
• ADABAS
• FOCUS

Operating Systems

• z/OS

Additional Technologies

• EntireX
• ASP
• HTML
• Cloverleaf