Senior z/OS Unix & zLinux Integration Engineer

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 Git or Ansible for z/OS automation, and promote the adoption of modern mainframe development environments (e.g., using Zowe CLI and APIs for automation; exploring containerized dev/test frameworks like IBM Wazi for z/OS). Ensure system interoperability – Develop and maintain interfaces between z/OS and distributed (Linux/Unix) systems , enabling smooth data exchange and process integration. This may involve building secure API layers, cross-platform file sharing (e.g. via NFS or Zowe API Mediation Layer), and connecting mainframe services to cloud or hybrid environments. Operational Excellence – Integrate advanced observability and monitoring for USS and zLinux processes, using tools like system logs, SMF data , and modern monitoring dashboards (Grafana, Splunk, etc.) to ensure performance and reliability. You will also provide third-level support for complex UNIX and Linux-related issues on the mainframe, employing deep problem analysis to identify root causes and permanent fixes. Technical leadership – As a senior engineer, you will make high-impact decisions regarding our mainframe integration strategy. You’ll present solution designs and roadmaps to stakeholders and technical leadership , advocating for improvements that enhance agility and align with business needs. You will collaborate with architects and other senior engineers to design hybrid solutions that leverage main…