Senior z/OS Network Engineer

Job#: 3030236

Job Description:

Position Description:

• Perform advanced network problem analysis utilizing sniffer traces and TCP/IP packet captures.
• Execute and analyze VTAM network traces to isolate and resolve complex issues within the SNA/APPN environment.
• Provide high-level support for Enterprise Extender (EE) protocols to ensure seamless SNA-over-IP communication.
• Customize and maintain the z/OS Policy Agent (Pagent) to manage network policies and AT-TLS rules.
• Manage secure communication protocols, including SSH and SSL/TLS, ensuring robust data encryption.
• Administer Digital Certificates and Keyrings to maintain mainframe security integrity.
• Support secure file transfer services, including SFTP, FTPS, and Connect:Direct.
• Configure and support IBM 3270 Emulators, including PCOMM, Host On-Demand (HOD), and HACP-EE.
• Customize, and maintain the VPS Enterprise Printing System.
• Manage printer protocols, specifically PCL and PostScript, to ensure reliable output services.
• Generate reports based on SMF records using REXX, CLIST, and Java.
• Utilize IBM utilities, Syncsort, and SMF (System Management Facilities) records for performance monitoring, reporting, and capacity planning.
• Proficiency in mainframe environments: TSO/ISPF, JCL, SDSF (JES2/JES3), and OMVS.
• Experience with distributed tools such as PuTTY, WinSCP, and the Microsoft Office Suite.
• Familiarity with ServiceNow for IT Service Management (ITSM) is highly desirable.
• On-Call Support: Must be willing to participate in a rotational 24x7x365 on-call schedule.
• Flexibility: Ability to work overtime, including various shifts, weekends, and holidays, as required by business needs.
• Collaboration: Proven ability to function effectively both as an independent contributor and as a collaborative team member across cross-functional groups.

Skills Required:

• Mainframe Systems
• Network Protocols & Standards
• Network Security
• Z/OS

Skills Preferred:

• Java
• Linux
• Programming
• TCP/IP

Experience Required:

• Senior Engineer Exp: Prac. In 2 coding lang. or adv. Prac. in 1 lang.; guides.
• 10+ years in IT; 8+ years in development

Experience Preferred:

Minimum 5 years of experience in IBM z/OS Communications Server, with specific expertise in:

• SNA, VTAM, and APPN/Enterprise Extender.
• TCP/IP stack configuration and z/OS Policy Agent.

Education Required:

Certification Program, Master's Degree, Bachelor's Degree

Education Preferred:

Bachelor's Degree

Additional Information :

4 days on site

EEO Employer

Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Employee Services Department at or .

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click for more details.

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Apex team member can provide.