Senior Mainframe Developer
Technical Requirements Core Mainframe: 6+ years of hands-on experience with COBOL, JCL, and VSAM. Frameworks: Advanced knowledge of CSF (Callable Services Framework) for system-level programming and security protocols. Database: Proficiency in DB2 (including stored procedures) and IMS DB/DC. Transaction Management: Solid experience with CICS (Customer Information Control System) for online processing. Utilities & Tools: Mastery of TSO/ISPF, File-Aid, Changeman/Endevor, and SPUFI. Security: Understanding of mainframe security concepts (RACF) and how they interface with application logic. Soft Skills Analytical Thinking: Exceptional ability to deconstruct complex legacy logic and refactor for efficiency. Attention to Detail: Precision in managing mission-critical data where accuracy is non-negotiable. Collaboration: Ability to work effectively within Agile/Scrum frameworks and bridge the gap between legacy systems and modern front-end teams.
Preferred Qualifications
Experience with Rexx or Assembler programming. Knowledge of Mainframe-to-Cloud integration patterns (z/OS Connect, REST APIs). Familiarity with DevOps for Mainframe (IDz, Zowe, or Jenkins integration). At Zensar, we’re “experience-led everything”. We are committed to conceptualizing, designing, engineering, marketing, and managing digital solutions and experiences for over 130 leading enterprises. We are a company driven by a bold purpose: Together, we shape experiences for better futures. Whether for our clients, our people, or the world around us, this belief powers everything we do. At the heart of our culture is ONE with Client - a set of four core values that reflect who we are and how we work: One Zensar, Nurturing, Empowering, and Client Focus. Part of the $4.8 billion RPG Group, we’re a community of 10,000+ innovators across 30+ global locations, including Milpitas, Seattle, Princeton, Cape Town, London, Zurich, Singapore, and Mexico City. Explore Life at Zensar and join us to Grow. Own. Achieve. Learn. to be the best version of yourself. We believe the best work happens when individuality is celebrated, growth is encouraged, and well-being is prioritized. We are an equal employment opportunity (EEO) and affirmative action employer, committed to creating an inclusive workplace. All qualified applicants will be considered without regard to race, creed, color, ancestry, religion, sex, national origin, citizenship, age, sexual orientation, gender identity, disability, marital status, family medical leave status, or protected veteran status. Apply To This Job