Scan your resume against ATS criteria for this Senior z/OS Unix & zLinux Integration Engineer role at Ensono.
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.
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.
with
and
(Linux on IBM Z) to drive innovation in bridging mainframe and distributed systems. In this role, you will:
to our
– 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.
–
like
, the
framework, and
to integrate mainframe systems into
. 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
, bridging the gap between legacy systems and modern development practices.
for mainframe – Work on integrating z/OS with enterprise
, 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).
– Develop and maintain
, 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.
– Integrate advanced
and
for USS and zLinux processes, using tools like system logs,
, and modern monitoring dashboards (Grafana, Splunk, etc.) to ensure performance and reliability. You will also
for complex UNIX and Linux-related issues on the mainframe, employing deep problem analysis to identify root causes and permanent fixes.
– As a senior engineer, you will make high-impact decisions regarding our mainframe integration strategy. You’ll present solution designs and roadmaps to
, 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 mainframe strengths in a modern IT landscape. Furthermore, you will contribute to our culture by
(e.g., in using new tools or approaches) and by sharing expertise in internal forums and guilds.
crew, working within a specialized
pod. This cross-functional team focuses on evolving the mainframe to support
. You will closely partner with team members in
to develop end-to-end solutions that connect mainframe services with modern platforms. The team operates globally, so you’ll collaborate with colleagues across different regions and time zones, bringing together a variety of skills to modernize our mainframe environment. The working model is agile, emphasizing iterative improvements, quick feedback loops, and continuous learning as we adopt new technologies in the mainframe context.
– Advanced knowledge of
(shell environment, POSIX interfaces, zFS file system management, Unix security model) and the ability to develop and debug programs or scripts running under USS. Experience porting or integrating open-source tools (e.g., Git, Python) USS is an advantage.
–
(Linux running in KVM or LPAR on IBM Z hardware), including system installation, networking, and performance tuning in a mainframe environment. Familiarity with virtualization via
and concepts like IFL processors, CPU management, and resource sharing on IBM Z is expected.
– Hands-on experience with or strong knowledge of
such as
(IBM z/OS Management Facility) for web-based system management,
(Open Mainframe Project’s framework for mainframe integration) — e.g., usage of Zowe CLI/Explorer and API mediation for connecting mainframe services with cloud – and
for cloud-based mainframe development/testing. Your ability to utilize these tools and frameworks is critical for enabling an
environment.
– Proficiency in
, REXX, and programming languages like
on z/OS or Linux, enabling you to create automation scripts, API endpoints, and system utilities bridging z/OS with distributed systems. Exposure to infrastructure-as-code (e.g.,
) is a plus, emphasizing code-driven system management.
– Solid knowledge of SMP/E, with proven experience in installing, configuring, and migrating new product versions.
– Good grasp of mainframe networking (TCP/IP on z/OS) and
. Understanding how to manage secure APIs and connectivity between z/OS and external systems (e.g., leveraging encryption, RACF rules for cross-platform access, etc.) is important for safe integration.
– Experience optimizing the performance of USS workloads and zLinux instances, including resource allocation, workload balancing, and monitoring of key metrics (like CPU, memory usage on IFLs, network throughput) to ensure stable operations. Familiarity with
and logs (SMF, RMF) is expected.
– Passion for
and staying updated on industry trends (for example, containerization on zLinux, cloud integration, DevOps practices for mainframe). Ability to evaluate emerging technologies and incorporate them into the mainframe environment when beneficial.
–
are
, enabling you to collaborate effectively with global teams and to clearly present modernization plans to both technical and non-technical stakeholders. You are comfortable in a leadership capacity, coordinating initiatives across different groups, and nurturing a culture where mainframe and distributed teams collaborate seamlessly on hybrid solutions.
in a dynamic, agile environment. You’ll leverage your deep specialty—be it base z/OS systems, workload automation, or mainframe Unix/Linux integration—to drive high-impact improvements that keep our mainframe systems robust, modern, and aligned with business needs. We value proactive engineering leadership, strong communication, and a commitment to continuous learning and innovation across all these positions. Each role offers the opportunity to take ownership of technical solutions and present them to stakeholders and technology leadership, ensuring your contributions directly influence our organization’s success.
How to apply for Senior z/OS Unix & zLinux Integration Engineer at Ensono?
Click the "Apply on Company Website" button on this page to submit your application directly on the employer's official portal.
What is the salary for this role?
Salary details will be discussed during the interview.
What experience is required?
10+ years of experience is required.
Is this position still open?
Yes, currently active and accepting applications.
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