Senior z/OS Unix & zLinux Integration Engineer
Senior mainframe engineer (8–10+ yrs) who modernizes and integrates z/OS UNIX System Services (USS) and zLinux with modern platforms — using Zowe, z/OSMF, IBM Wazi, Git/Ansible and CI/CD pipelines — while handling performance tuning, observability (SMF, Grafana, Splunk), and third-level support for mainframe Unix/Linux issues.
- Compensation
- Not disclosed
- Location
- Hyderabad, India
- Work setup
- Not specified
- Seniority
- Senior
- Employment
- Full time
- Experience
- 10+ years
- Category
- Software engineering
- Posted
Skills
Must have
- 8–10+ years of mainframe engineering experience
- Advanced knowledge of z/OS UNIX System Services (USS): shell environment, POSIX interfaces, zFS, Unix security model; develop/debug programs under USS
- In-depth understanding of zLinux (Linux on IBM Z): installation, networking, performance tuning
- Familiarity with KVM virtualization, IFL processors, CPU management, and resource sharing on IBM Z
- Hands-on experience with modern mainframe tools: z/OSMF, Zowe (CLI/Explorer/API Mediation Layer), IBM Wazi
- Proficiency in shell scripting, REXX, and Python or C/C++ on z/OS or Linux
- Solid knowledge of SMP/E with proven experience installing, configuring, and migrating product versions
- Good grasp of mainframe networking (TCP/IP on z/OS) and cross-platform security protocols (encryption, RACF rules)
- Experience optimizing USS and zLinux performance; familiarity with mainframe performance tools and logs (SMF, RMF)
- Excellent English communication skills for global collaboration and stakeholder presentations
- Comfortable in a leadership capacity: coordinating initiatives and mentoring colleagues
Nice to have
- Experience porting or integrating open-source tools (e.g., Git, Python) onto USS
- Exposure to infrastructure-as-code (e.g., Ansible on z/OS)
- Knowledge of modernization trends such as containerization on zLinux and cloud integration
Full description
Shift Timing- 1:30 PM to 10:30 PM
We are an equal opportunity employer. All qualified applicants will be considered for employment without regard to caste, colour, creed, religion, gender, gender identity, sexual orientation, age, disability, HIV status, or any other status protected by law. Candidates with disabilities who require accommodations during the recruitment process are encouraged to contact our Talent Acquisition team to place a request.
About Us (Ensono)
Ensono is an expert technology adviser and managed service provider. As a relentless ally, we accelerate clients’ digital transformation to achieve business outcomes that stand to last. Our dedicated team helps organizations optimize today’s systems across any hybrid environment with services such as consulting, mainframe and application modernization, public cloud migration and cloud-native development. With certified experts in AWS, Azure and Google Cloud and recognized as Microsoft Datacenter Transformation Partner of the Year, Ensono has over 3500+ associates globally and is headquartered in greater Chicago.
Your role: As a Senior z/OS UNIX & zLinux Integration Engineer, you will spearhead efforts to modernize and integrate our mainframe with contemporary platforms and tools. We’re seeking an experienced z/OS Systems Engineer with expertise in z/OS UNIX System Services (USS) and IBM zLinux (Linux on IBM Z) to drive innovation in bridging mainframe and distributed systems. In this role, you will:
Design and implement enhancements to our z/OS UNIX and zLinux environments – ensuring robust, secure, and scalable UNIX system services on z/OS and optimizing Linux on IBM Z for enterprise workloads. You will apply best-in-class engineering practices to develop new features, automate manual tasks, and improve the developer experience on the mainframe.
- Accelerate Modernization – Leverage modern interfaces like z/OS Management Facility (z/OSMF), the Zowe framework, and IBM Wazi to integrate mainframe systems into contemporary DevOps and cloud environments. This includes enabling REST APIs and CLI tools that allow distributed teams and modern applications to seamlessly interact with z/OS resources. You will play a key role in making the mainframe a more open and agile platform, bridging the gap between legacy systems and modern development practices.
- Implement DevOps and CI/CD practices for mainframe – Work on integrating z/OS with enterprise DevOps pipelines, enabling efficient use of mainframe capabilities in continuous integration and delivery processes. Introduce and support tools such as for z/OS automation, and promote the adoption of modern mainframe development environments (e.g., using for automation; exploring containerized dev/test frameworks like for z/OS).