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Mainframe (Assembler) Developer

United States, McKinney · Job Posted July 04, 2026
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Job Description

This position reports to the IT Application Manager and is responsible for the development, deployment, and support of new and existing applications to meet the current and future needs of the business. Senior Programmer Analysts participate in all phases of the System Development Life Cycle as needed, applying expert knowledge of system interaction and business familiarity to meet business needs. This work is performed as part of a team or as a team lead, depending on the project.

Job Responsibility

  • Coordinate with clients and other I.T. personnel in analyzing system requests, developing specifications for new system development projects or for maintenance to existing mainframe-based applications
  • Adhere to System Development Life Cycle standards, including preparation of project-related documents as requested by the Project Manager
  • Make design changes to programs, either alone or in concert with other programmers
  • Prepare unit and integration test plans for program changes, and in cooperation with clients and other I.T. personnel, perform the testing
  • Conduct thorough problem analysis in regard to technical system and application programs
  • documents findings and proposes problem resolution alternatives
  • Some on-call responsibilities to support production as needed
  • Communicate effectively with technical and non-technical audiences
  • Communicate project progress and issues as needed
  • Prepare user and operational documentation for programming work performed
  • Serve as a Project Lead for smaller or less complex projects
  • Serve as a mentor for less experienced programmer/analysts as needed
  • Serve as a ‘go-to’ resource for complex questions
  • Be a participatory team member, share knowledge, assist with projects as needed and suggest improvements for the system development process

Requirements

  • 8+ years experience performing system development and support for mainframe-based applications
  • 5 +yrs Proven experience in meeting deadlines and managing multiple priorities
  • Proven ability to work with clients in developing system solutions to business needs
  • 5+ yrs Mastery of mainframe development tools: IBM Assembler Language is a must, COBOL, Easytrieve, CICS, VSAM, VSE/DOS
  • Master of VSE tools such as: SyncSort, IDCAMS, CECI, CEDF, FTP, or any other third party toolset
  • Working skills for MS Office suite of products also preferred (Word, Excel, Visio)
  • Working knowledge of systems development life cycle and use of structured methodologies and techniques (Waterfall, Agile)
  • Experience working in a team environment
  • Strong technical, analytical and communication skills
  • Bachelor’s degree in Computer Science, Business Administration or other related field, or equivalent work experience
  • Minimum 8 years Application Management-Migration-Mainframe

Nice to have

  • Client/Server technology skills a plus
  • Working with .TXT, .XLS files and SQL is also a plus
  • Insurance industry experience in life, health and annuity a plus

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