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.
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)
The successful applicant will bring strong technical judgment, an architectural mindset, attention to detail, and enthusiasm for working in a technically deep, highly collaborative engineering environment, along with a proactive approach to researching, evaluating, and applying new technologies, processes, and engineering practices.
Rocket Software’s Perth office is located in the Elizabeth Quay precinct, overlooking the Swan River, placing it at the heart of the city’s vibrant waterfront and business district. The office is continuing to grow and evolve, reflecting Rocket’s long-term investment in the region. This year marks an important milestone with the introduction of the Next Gen Program, welcoming ten recent graduates into the team and strengthening the office’s focus on developing emerging engineering talent. Together, the location, growth, and commitment to early‑career development make Rocket Perth a dynamic and exciting place to work.