Principal Software Engineer

Responsibilities

• There is a wide range of opportunities at Rocket across the product portfolio. Responsibilities in this role may vary based on experience and strengths, with the expectation that engineers will grow into broader technical leadership and ownership over time.
• Own and evolve common software components that are critical to multiple Rocket products, ensuring scalability, reliability, and long-term maintainability.
• Provide technical leadership in the design and development of common platform capabilities, setting standards and guiding architectural decisions across teams.
• Act as a subject matter expert , mentoring engineers and enabling teams through training, documentation, and hands-on guidance to effectively leverage common software components.
• Drive cross-team collaboration , partnering with product and engineering teams to deliver strategic solutions-particularly in modernization and middleware layers of the technology stack.
• Identify and address systemic challenges , proactively improving platform capabilities, performance, and developer experience across the organization.
• Required Skills and Experience
• Strong proficiency in C, C++, and Java
• Demonstrated familiarity with IBM mainframe operating systems (z/OS)
• Experience developing, maintaining, or supporting complex, high‑performance software systems
• Highly Desirable Skills and Experience
• High Level Assembler (HLASM) programming experience
• Familiarity with ISPF, REXX and DTL
• Technical knowledge of key mainframe subsystems (e.g., IMS, CICS)
• .
• As part of our commitment to a safe and trustworthy workplace, we include background and reference checks in our hiring process.
• If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

Additional Information

It's fun to work in a company where people truly BELIEVE in what they're doing! Job Description Summary: Rocket Software is seeking a Principal Software Engineer to help design, develop, and support strategic products for IBM z/OS mainframes. In this role, you will act as a trusted technical expert, taking ownership of critical components across one or more products, with support from a globally distributed team of engineering specialists. You will collaborate closely with peers to design, enhance, and maintain our world‑class portfolio of system‑level products. This role is well suited to engineers with a strong foundation in modern programming languages, experience building enterprise software, and a genuine interest in IBM mainframe environments. You will be encouraged to continuously learn, share knowledge, and drive technical excellence across the team.

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