At Unosquare, we are excited to announce that we are looking for a passionate SRE with strong IBM Mainframe experience to join our expanding team. Remote in México, Bolivia, Colombia, or Paraguay BENEFITS AS A UNICORN: Remote work Long-term contract} ️ Paid vacation & holidays Health insurance Career path & growth opportunities COE (Center of Excellence) Program Referral Plan Certification Support English classes 100% remote position MUST HAVE Conversational English IBM z/OS Administration CA-IDEAL COBOL & JCL OCI, AWS, Azure, or GCP REQUIREMENTS: 4 years of experience in Site Reliability Engineering, Systems Administration, or Mainframe Operations. Strong experience with Mainframe technologies such as CICS, IMS, DB2, Datacom, VSAM, RACF, JES2/JES3, SMF, WLM, and z/OSMF. Experience developing automation solutions using Python, Go, REXX, Assembler, CLIST, or similar technologies. Solid understanding of SRE concepts such as SLIs, SLOs, Error Budgets, Incident Management, Root Cause Analysis, and Toil Reduction.



Experience working in hybrid Mainframe and Cloud environments. Strong understanding of distributed systems, networking, databases, high availability, disaster recovery, capacity planning, and performance optimization. KEY RESPONSIBILITIES: Own the reliability, availability, and performance of integrated OCI and IBM Mainframe environments. Define and maintain SLIs, SLOs, and Error Budgets. Automate operational tasks and reduce manual effort. Participate in incident response, troubleshooting, root cause analysis, and postmortems. Administer z/OS environments and support critical Mainframe services. Provide support for CA-IDÓNEO and COBOL-based applications. Optimize batch processing, scheduling, and performance. Troubleshoot integrations between Mainframe and Cloud services. Support disaster recovery and high-availability initiatives. Promote a culture of reliability, automation, and continuous improvement.

📌 SRE with IBM Mainframe (México)
🏢 Unosquare
📍 México