Senior Mainframe Developer

Overview

Job Purpose

The MSP development community is the heart of MSP Mortgage Technology.  Our focus is to enhance, maintain, and support both internal and client-facing MSP functionality through efficiencies, and associated processes that drive improvements which grow, protect and preserve the integrity of MSP for our clients.

The Senior Software Engineer is a core contributor to the MSP development team, responsible for the design, development, and ongoing support of mainframe-based mortgage servicing solutions. This role leads technically on projects of appropriate scope, delivers quality COBOL/CICS solutions aligned with business requirements and architectural standards, and actively contributes to the growth and capability of the broader engineering team.

Responsibilities

• Interpret, write new, and/or modify existing COBOL Batch and CICS programs timely and efficiently according to business requirements and documented standards
• Familiarity with in-house source-code tools, development tools, development, testing, and implementation processes and procedures.
• Able to collaborate with peers, teams, and departments successfully and respectfully.
• Able to research, analyze, strategize, formulate, problem-solve, and implement coding solutions within expected timelines.
• Serves as technical lead, architect, or principal developer on projects of appropriate scope and complexity.
• Provides and guides production support for in-production applications, including participation in the secondary on-call rotation.
• Mentors and guides less experienced developers, contributing to team growth and knowledge transfer.
• Participates in a secondary on-call schedule to support production operations outside of business hours.
• Perform other related duties as assigned.

Knowledge and Experience

• Bachelor’s degree in computer science, Information Systems, or the equivalent combination of education, training, or work experience.
• 8+ years z/OS mainframe application development technologies such as Batch/CICS COBOL, JCL, IDz, ISPW, REXX, TSO; Java/Java plug-ins, Assembler, C* are a plus.
• Excellent analytical, decision-making, and problem-solving skills - ability to foresee problems, identify/implement solutions that are reliable, scalable, and efficient where applicable.
• Excellent leadership skills (defined as the ability to influence or induce others in a direction, course, action, or opinion to produce positive results for the organization or a client).
• Ability to communicate well with technical and non-technical audiences.
• Knowledge with AI-assisted development tools, particularly with Claude Code knowledge/ experience is considered a strong plus
• Results oriented, business focused, and successful at interfacing across multiple organizational units.
• Self-motivated, proactive, and able to work independently with little guidance or formal training.
• Ability to identify opportunities to create, improve or enhance tools and processes to improve productivity and help minimize Production risk.
• Performs well under pressure/time constraints.
• Adaptable, Approachable, able to give/take direction.
• Continual learner.
• Mortgage/MSP knowledge and understanding of FM a plus.
• Familiarity with FM/MSP production job flows and processes.

Technologies

• COBOL for Z/OS, CICS, IDz, (C*, Assembler, JCL, REXX a plus).
• VSAM/DB2 file structures, ISPW source code/release management
• TSO/ISPF mainframe interfaces
• Utilities (IDCAMS, FILEAID, XPEDITER, QUIKJOB, LIBRARIAN, RDZ - Rational Suite)
• MS Office (WORD, EXCEL, PowerPoint, Visio)