Jobs in the United States

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Added 20 mins ago
Sr. Infrastructure Engineer -Managed File Transfer
Wells Fargo
CHANDLER, AZ
Wells Fargo is seeking a Senior Infrastructure Engineer for the Infrastructure Engineering & Architecture organization (IEA). This position within the FTS (File Transmission Services) group…
Added 38 mins ago
Senior Staff Full-stack Engineer - Global Payment Network (Remote - Eligible)
Capital One
Jackson, MS
As a Senior Staff Engineer at Capital One, you will be part of a community of technical experts working to define the future of banking in the cloud. You will work alongside our talented…
Added 1 hour ago
Senior Manager, Full-stack Engineer-People Leader
Capital One
Cambridge, MA
Lead teams utilizing programming languages like Java, Scala, Python, Go, Node.js, JavaScript and TypeScript, Open Source RDBMS and NoSQL databases, Container Orchestration services…
Added 2 hours ago
Senior Staff Software Engineer- UKG Ready Payroll
UKG
Lowell, MA · Lowell
UKG is looking for a passionate Sr Staff Software Engineer with web application and platform services experience to join our engineering team.
Added 2 hours ago
Principal/Sr. Principal RF Microwave/Mixed Signal Design Engineer
CORP-Corporate Office
United States
We are looking for you to join our team as a Principal or Sr. Principal RF Microwave/Mixed Signal Design Engineer based out of Baltimore (Linthicum), MD. This is full time onsite position…
Added 2 hours ago
Principal/Sr. Principal RF Microwave Design Engineer (Level 3 or 4)
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United States
Northrop Grumman’s Space Sector is seeking a Principal/Sr. Principal RF Microwave Design Engineer (Level 3 or 4) to join our MEP organization in Goleta, CA.
Added 2 hours ago
Sr. Application Security Engineer
American Express Global Business Travel
Cheyenne, WY
We are seeking an experienced Senior Application Security Engineer to join our team in the corporate travel industry. This remote position requires a unique blend of application development…
Added 2 hours ago
Sr. Application Security Engineer
American Express Global Business Travel
Providence, RI
We are seeking an experienced Senior Application Security Engineer to join our team in the corporate travel industry. This remote position requires a unique blend of application development…
Added 2 hours ago
Sr. Application Security Engineer
American Express Global Business Travel
Frankfort, KY
We are seeking an experienced Senior Application Security Engineer to join our team in the corporate travel industry. This remote position requires a unique blend of application development…
Added 2 hours ago
Software Engineer Sr - E3
Lockheed Martin
Rockville, MD · Littleton, CO · Rockville · Littleton
We're looking for a highly motivated and experienced software engineer to join our fast-paced development effort and contribute to the success of a very challenging and rewarding mission.
Added 2 hours ago
Software Engineer Sr - E3
Lockheed Martin
Rockville, MD · Rockville
Software development experience and proficiency in C++, Linux, and Python
Added 2 hours ago
Systems Engineer Sr - E3
Lockheed Martin
Littleton, CO · Littleton
Direct experience with Cameo add-ons or scripting (TCL, Python) for model automation or custom tool development.
Added 2 hours ago
Systems Engineer Sr - E3
Lockheed Martin
Littleton, CO · Littleton
Strong proficiency in at least one modern programming language (C++, Python, Java, or C#) and associated build tools
Added 2 hours ago
Sr Principal Software Engineer
Northrop Grumman
Remote, United States
Northrop Grumman Mission Systems is looking for you to join our team as a Sr. Principal Software Engineer to join the MS Data & Analytics organization. This is a remote role and can be…
Added 2 hours ago
Principal or Sr Principal Electronics Engineer
Northrop Grumman
Baltimore
We are looking for you to join our team as a Principal or Senior Principal Electronics Engineer based out of Baltimore (Linthicum), MD. This is a fulltime onsite position that offers the…
Added 2 hours ago
Principal/Sr. Principal RF Microwave/Mixed Signal Design Engineer
Northrop Grumman
Baltimore
We are looking for you to join our team as a Principal or Sr. Principal RF Microwave/Mixed Signal Design Engineer based out of Baltimore (Linthicum), MD. This is full time onsite position…
Added 2 hours ago
Principal Electronics Engineer / Sr Principal Electronics Engineer
Northrop Grumman
Baltimore
Northrop Grumman Mission Systems is looking for you to join our team as a Principal Electronics Engineer / Sr Principal Electronics Engineer based out of Baltimore, MD, along with travel up…
Added 2 hours ago
Principal/Sr Principal Software Engineer
Northrop Grumman
Huntsville
Proficiency in Linux-based development and runtime environments. Experience with scripting languages and tools including Bash and Python.
Added 2 hours ago
Principal/Sr. Principal RF Microwave Design Engineer (Level 3 or 4)
Northrop Grumman
Goleta
Northrop Grumman’s Space Sector is seeking a Principal/Sr. Principal RF Microwave Design Engineer (Level 3 or 4) to join our MEP organization in Goleta, CA.
Added 2 hours ago
Modeling Simulation & Analysis Engineer 3 or 4 (Principal or Sr. Principal Level)
Northrop Grumman
El Segundo
Northrop Grumman Aeronautics Systems has an opening for a Modeling Simulation and Analysis Engineer (Principal or Sr. Principal Level) to join our team of qualified, diverse individuals…
Added 4 hours ago
Sr. Application Security Engineer
American Express Global Business Travel
Bismarck, ND
We are seeking an experienced Senior Application Security Engineer to join our team in the corporate travel industry. This remote position requires a unique blend of application development…
Added 4 hours ago
Sr. AI Engineer
CalPrivate Bank
San Diego, CA · Brea, CA · El Segundo, CA · Newport Beach, CA
The Role: Sr. AI Engineer- Data Analytics & Artificial Intelligence
Added 4 hours ago
Sr. Staff Systems Engineer, Perception-Planner Risk
Waymo
Mountain View, CA
Added 4 hours ago
Sr. Systems Engineer – Mainframe API Services
U.S. Bank
Cincinnati, OH
U.S. Bank is seeking a Sr. Systems Engineer – Mainframe API Services to support highly available mainframe API platforms and modernization initiatives. This role requires hands-on expertise…
Added 4 hours ago
Architect
Altimetrik, Inc
Cincinnati, OH
…separations by building permanent cloud-native solutions using Python and AWS to decouple specialized line-of-business metrics between FIS and TRP systems with zero data loss or downstream…

U.S. Bank

Sr. Systems Engineer – Mainframe API Services

Cincinnati, OH, United States

Pay Range: $105,400.00 - $124,000.00

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Job details

Pay: Pay Range: $105,400.00 - $124,000.00
Posting language: English
Posted: Oct 30, 2026

Original job description

At U.S. Bank, we’re on a journey to do our best. Helping the customers and businesses we serve to make better and smarter financial decisions and enabling the communities we support to grow and succeed. We believe it takes all of us to bring our shared ambition to life, and each person is unique in their potential. A career with U.S. Bank gives you a wide, ever-growing range of opportunities to discover what makes you thrive at every stage of your career. Try new things, learn new skills and discover what you excel at - all from Day One.

Job Description

U.S. Bank is seeking a Sr. Systems Engineer – Mainframe API Services to support highly available mainframe API platforms and modernization initiatives. This role requires hands-on expertise with IBM z/OS Connect, Unix System Services (USS), REST APIs, Liberty, and z/OS infrastructure, with a strong focus on reliability, security, automation, and performance.

Key Responsibilities

Configure, administer, and support IBM z/OS Connect and Liberty in enterprise mainframe environments.
Support REST APIs integrating with CICS and z/OS applications and services.
Troubleshoot API, network, TLS, security, performance, and connectivity issues.
Administer z/OS Connect services within Unix System Services (USS).
Configure RACF/SAF, authentication, authorization, TLS certificates, and key rings.
Monitor API availability, performance, system health, and resiliency.
Automate deployment, configuration, monitoring, and operational processes using Jenkins, Git, Python, Java/Groovy, REXX, and shell scripting.
Support z/OS upgrades, software maintenance, disaster recovery, production resiliency, and 24x7 on-call rotation.

Basic Qualifications

Bachelor’s degree, or equivalent work experience
At least 5 years of experience within a total information technology (IT) environment
At least 10 years of experience with the design, development and support of technology

Preferred Skills & Experience

Extensive experience with IBM z/OS and mainframe infrastructure.
Hands-on expertise with IBM z/OS Connect, Liberty, and USS.
Strong knowledge of REST APIs, JSON, HTTP/HTTPS, CICS, TCP/IP, DNS, and TLS/SSL.
Experience with RACF/SAF, key rings, digital certificates, authentication, and authorization.
Experience with SMF, system logs, API monitoring, performance analysis, and troubleshooting.
Familiarity with Datadog or similar monitoring and observability tools.
Experience with Jenkins, Git, Python, Groovy/Java, REXX, shell scripting, and DevOps automation.
Working knowledge of JCL, SDSF, z/OS Sysplex, system operations, and high-availability environments.

Location expectations

This role requires working from a U.S. Bank location three (3) or more days per week.

If there’s anything we can do to accommodate a disability during any portion of the application or hiring process, please refer to our disability accommodations for applicants (https://careers.usbank.com/global/en/disability-accommodations-for-applicants) .

Benefits:

Our approach to benefits and total rewards considers our team members’ whole selves and what may be needed to thrive in and outside work. That's why our benefits are designed to help you and your family boost your health, protect your financial security and give you peace of mind. Our benefits include the following:

Healthcare (medical, dental, vision)
Basic term and optional term life insurance
Short-term and long-term disability
Pregnancy disability and parental leave
401(k) and employer-funded retirement plan
Paid vacation (from two to five weeks depending on salary grade and tenure)
Up to 11 paid holiday opportunities
Adoption assistance
Sick and Safe Leave accruals of one hour for every 30 worked, up to 80 hours per calendar year unless otherwise provided by law

Review our full benefits available by employment status here (https://careers.usbank.com/global/en/benefits/us) .

U.S. Bank is an equal opportunity employer. We consider all qualified applicants without regard to race, religion, color, sex, national origin, age, sexual orientation, gender identity, disability or veteran status, and other factors protected under applicable law.

E-Verify

U.S. Bank participates in the U.S. Department of Homeland Security E-Verify program in all facilities located in the United States and certain U.S. territories. The E-Verify program is an Internet-based employment eligibility verification system operated by the U.S. Citizenship and Immigration Services. Learn more about the E-Verify program (https://careers.usbank.com/verification-of-eligibility-for-employment) .

The salary range reflects figures based on the primary location, which is listed first. The actual range for the role may differ based on the location of the role. In addition to salary, U.S. Bank offers a comprehensive benefits package, including incentive and recognition programs, equity stock purchase 401(k) contribution and pension (all benefits are subject to eligibility requirements). Pay Range: $105,400.00 - $124,000.00

U.S. Bank will consider qualified applicants with arrest or conviction records for employment. U.S. Bank conducts background checks consistent with applicable local laws, including the Los Angeles County Fair Chance Ordinance and the California Fair Chance Act as well as the San Francisco Fair Chance Ordinance. U.S. Bank is subject to, and conducts background checks consistent with the requirements of Section 19 of the Federal Deposit Insurance Act (FDIA). In addition, certain positions may also be subject to the requirements of FINRA, NMLS registration, Reg Z, Reg G, OFAC, the NFA, the FCPA, the Bank Secrecy Act, the SAFE Act, and/or federal guidelines applicable to an agreement, such as those related to ethics, safety, or operational procedures.

Applicants must be able to comply with U.S. Bank policies and procedures including the Code of Ethics and Business Conduct and related workplace conduct and safety policies.

Posting may be closed earlier due to high volume of applicants.

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More about this job

Skills

UNIX
API development
CICS
Troubleshoot
Jenkins
Git
Python
Oracle Java
Apache Groovy
Implement ICT recovery system
Computer technology
DNS
Troubleshooting
Datadog
DevOps
JCL

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