Mainframe Developer - z/OS, Agile & High-Performance

Valiant Technologies LLC; Jacksonville (FL); On-site; USD 90,000 - 120,000; Full time

Job summary

Valiant Technologies LLC is seeking a software professional to develop and maintain critical Mainframe applications on the IBM z/OS platform. You will participate in the full SDLC, from analysis and design to testing and documentation, while supporting production systems.

The role emphasizes performance, security, and collaboration with other developers in an Agile environment. Prior experience with IDz or related tools is a plus, and growth in IBM Mainframe architecture is encouraged.

Qualifications

• Experience with Agile development using tools like IDz or CoPilot.
• Interest in expanding knowledge of IBM Mainframe technology, z/OS.
• Demonstrated technical and business leadership capabilities with a strong aspiration to learn new processes.
• Familiarity with structured change management and software rollout processes.

Responsibilities

• Create high-performance, mission-critical mainframe applications to support business operations.
• Analyze user requirements and translate them into functional software solutions.
• Ensure all developed software applications meet strict performance and security standards.
• Collaborate with other developers to design and deliver scalable, high-performance systems.
• Research new technologies and software development trends to improve existing systems.
• Provide technical support and troubleshoot system issues to ensure operational continuity.
• Write detailed technical documentation for software design and system configurations.

Tools

IDz

CoPilot

Job description

Valiant Technologies LLC is seeking a software professional to develop and maintain critical Mainframe applications on the IBM z/OS platform. You will participate in the full SDLC, from analysis and design to testing and documentation, while supporting production systems.

The role emphasizes performance, security, and collaboration with other developers in an Agile environment. Prior experience with IDz or related tools is a plus, and growth in IBM Mainframe architecture is encouraged.