AustraliaPerth, Australia L8, 111 St Georges Terrace Perth, WA 6000L8, 111 St Georges TerracePerth, WA 6000, AUS 21st Century Software is the leader in software solutions for the IBM Z platform, which is the platform trusted by most of worldwide finance institutions, healthcare, insurances, retail and governments.We develop and maintain Mainframe-based software products, partnering with leaders in the Z industry, to service our global customer network. We provide innovative, modern solutions aimed at growing and revitalising the Z platform.About the roleWith a diverse collective of peers and skillsets, the Perth office has a great mix of z/OS experts, UI/UX engineers, QA analysts, as well as automation and translation specialists. We are looking to bring on board additional mainframe development experts to assist with product development.21 CS is seeking a skilled z/OS software developer who can work as part of a team using modern development methods that stress collaboration, transparency, focus on customer value, and constant improvement. This role collaborates in design and code functionality for enterprise-level products that meet business and customer requirements. The Software Developer will perform code modification, analysis, testing, and debugging tasks as well as provide input related to product futures. Strong z/OS skills and a passion for learning are necessary to accomplish company and personal goals.Required SkillsSenior experience in Mainframe (z/OS) development.A comprehensive understanding of ISPF, JCL and IBM utilities.Either Assembler or C++ on z/OS.Candidate should be self-organized, have a strong sense of analysis & troubleshooting skills, and ability to take the lead in problem solving and delivery of development items.Strong interpersonal and communication skills.Desired SkillsSystems Programming experience.Experience in Storage management and DFSMS access methods.Disaster Recovery, GDPS.Web/UI integration experience with z/OS products.Benefits and Perks:Great CBD location, close to amenities and easily accessible via public transport. We offer a friendly, fun work environment and mentorship by experienced and highly skilled team members. We also support flexible working practices.Qualifications:Bachelors or better in Computer Science.