Senior Mainframe Network Infrastructure Engineer

Infrastructure Engineer III- Mainframe Network Engineer

You belong to the top echelon of talent in your field. At one of the world's most iconic financial institutions, where infrastructure is of paramount importance, you can play a pivotal role.

As an Infrastructure Engineer III at JPMorganChase within the Infrastructure Platforms team,  you utilize strong knowledge of software, applications, and technical processes within the infrastructure engineering discipline. Apply your technical knowledge and problem-solving methodologies across multiple applications of moderate scope.
Job responsibilities

 

• Plan, design, install, configure, and support highly resilient mainframe network infrastructure with automation.
• Automate network operations using JCL, REXX, Unix shell scripting, and z/OSMF workflows.
• Develop software systems and tooling to solve complex infrastructure problems through automation.
• Integrate mainframe capabilities via RESTful APIs using Swagger or similar frameworks.
• Install, customize, and evaluate mainframe network products.
• Define, maintain, and modify z/Series network product configurations.
• Manage and support transmission products: FTPs (SSL), sFTP (SSH), and Connect:Direct Secure (NDM).
• Manage and support session manager applications: TPX and Supersession.
• Maintain and engineer core network components: TCP/IP (including DVIPA/DDVIPA), IPSEC, IPFILTER, IDS, Enterprise Extender, SNA, VTAM, APPN, and OSA connectivity.
• Support TCP/IP encryption methods (IPSEC, AT-TLS, TLS) and enforce protocol and cipher policies aligned to company standards.
• Monitor network health and performance using Omegamon, MainView, mainframe tracing tools, and sniffers; develop and refine operational procedures.

 

Required qualifications, capabilities, and skills

 

• Formal training or certification on infrastructure disciplines concepts and 3+ years applied experience
• Demonstrate deep knowledge of VTAM, TCP/IP, IP security, SNA, OSA, FTP, SSH, SNMP, SMTP, JCL, SDSF, VSAM, SMP/E, Unix System Services, Parallel Sysplex, IBM system utilities, and network tools (NDM, TPX, NetView, NetMaster).
• Perform mainframe network product installations, customizations, and evaluations.
• Define, maintain, and modify z/Series network products and related configurations.
• Manage and support transmission products: FTPs (SSL), sFTP (SSH), and Connect:Direct Secure (NDM).
• Manage and support session manager applications: TPX and Supersession.
• Develop mainframe network toolkits using NetMaster, NetView, REXX, and CLISTs.
• Maintain and configure core network components, including TCP/IP (DVIPA/DDVIPA), IPSEC, IPFILTER, IDS, Enterprise Extender, SNA, VTAM, APPN, and OSA.
• Tune performance and develop operational procedures for mainframe networking services.
• Support TCP/IP encryption methods (IPSEC, AT-TLS, TLS) and monitor protocols and ciphers in line with company policies.

 

Preferred qualifications, capabilities, and skills 

• Work with RESTful APIs using Swagger or similar frameworks to modernize infrastructure management.
• Apply one infrastructure technology and foundational programming or database management systems knowledge to enhance automation.
• Align architecture design with business technology drivers and constraints.
• Think creatively to deliver solutions through continuous improvement.

 

Experience Level

Senior Level