Jobs › U.S. Bank

Principal Systems Engineer - Enterprise API Platform & GraphQL Engineering

U.S. Bank · WI · $119,765–$140,900 a year · Full time

Posted Oct 2, 2026 · We last checked this listing on Oct 6, 2026

Apply at U.S. Bank

Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a platform modernization you led. What did you learn?

What they are checking: Whether they can lead large technical change and reflect on what worked.

How do you mentor other engineers as a technical subject matter expert?

What they are checking: Whether they spread knowledge so the platform does not depend on one person.

What would you do

A GraphQL query from one client is slowing the whole router. What do you do?

What they are checking: Whether they know about query cost limits, depth limits and observability to find and fix it.

How do you get many application teams to follow API governance standards?

What they are checking: Whether they can drive adoption through tooling and guidance, not only rules.

About the work

How would you plan a migration from Apigee OPDK to Apigee Hybrid on Azure without disrupting critical APIs?

What they are checking: Whether they can plan phased migration, traffic cutover and rollback for high-stakes platforms.

Explain how Apollo Federation works, and what schema governance problems it creates at scale.

What they are checking: Whether they understand subgraph ownership, breaking changes and schema checks across many teams.

How do OAuth 2.0, JWT and mTLS fit together in securing enterprise APIs?

What they are checking: Whether they understand each control's purpose and how they layer for defense in depth.

How would you design API traffic management to protect backend systems during a surge?

What they are checking: Whether they know rate limiting, quotas, spike arrest and caching strategies.

Walk me through how you would automate platform deployments with GitLab CI/CD, Kubernetes and Helm.

What they are checking: Whether they can design repeatable deployments with testing and safe rollouts.

How do you measure the reliability and performance of an API platform?

What they are checking: Whether they define clear SLOs and monitor latency, errors and availability.

Practice this interview out loud.

Offer builds a real interview for this exact role at U.S. Bank from your resume and this job description, asks the questions one at a time, and tells you what landed. The first one is free.

Practice this out loud

The full job description

As published by U.S. Bank.

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 What You'll Do • Act as the technical SME for our enterprise API ecosystem, leading engineering efforts across Apigee OPDK, Apigee Hybrid (Azure), and Apollo GraphQL platforms. • Design and deliver secure, scalable, and highly available API gateway solutions that support critical business applications. • Lead API platform modernization initiatives, including Apigee On-Prem to Apigee Hybrid migrations and cloud-native platform adoption. • Drive GraphQL platform strategy, architecture, and optimization utilizing Apollo Federation, Apollo Router, and schema governance . • Implement enterprise API security controls including OAuth 2.0, JWT, mTLS, traffic management, and API governance standards . • Automate platform deployments and operations using GitLab CI/CD, Kubernetes, Helm, Ansible, and Infrastructure as Code . • Improve platform reliability through monitoring, observability, incident response, performance tuning, and capacity planning. • Partner with Architects, Security, Infrastructure, and Development teams while mentoring engineers and advancing AI-driven engineering practices. Basic Qualifications • Bachelor’s degree, or equivalent work experience • At least 7 years of experience within a total information technology (IT) environment • At least 7 years of experience with the design, development and support of technology infrastructure Preferred Skills/Experience • Experience administring and engineering Apigee OPDK (On-Prem) including API management, proxy development, traffic management, analytics, and platform administration. • Experience engineering and supporting enterprise platforms, middleware, API management solutions, cloud infrastructure, or distributed application environments . • Hands-on expertise deploying and supporting Apigee Hybrid on Azure AKS/Kubernetes environments. • Strong experience with Apollo GraphQL , including Federation, Router, schema design, governance, and performance optimization. • Deep knowledge of API security including OAuth 2.0, OIDC, JWT, mTLS, and enterprise security best practices. • Experience building and supporting cloud-native platforms using Kubernetes, Helm, containers, and Azure services. • Strong automation and DevSecOps skills utilizing GitLab CI/CD, Ansible, Python, Bash, and GitOps methodologies. • Experience with observability platforms such as Datadog , distributed logging, monitoring, and Site Reliability Engineering (SRE). • Proven ability to lead large-scale platform engineering initiatives, influence architecture decisions, and mentor technical teams. This position is not eligible for visa sponsorship 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 . 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 . 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 . 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: $119,765.00 - $140,900.00 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.

Apply at U.S. Bank