Senior Integration Engineer

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, enabling the communities we support to grow and succeed in the right ways, all more confidently and more often—that’s what we call the courage to thrive.   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. Try new things, learn new skills and discover what you excel at—all from Day One.

As a wholly owned subsidiary of U.S. Bank, Elavon is committed to building the platforms and ecosystems that help over 1.5 million customers around the world to achieve their financial goals—no matter what they need. From transaction processing to customer service, to driving innovation and launching new products, we’re building a range of tailored payment solutions powered by the latest technology. As part of our team, you can explore what motivates and energizes your career goals: partnering with our customers, our communities, and each other.

We actively uphold transparent and fair hiring practices that support individual opportunity, inclusive culture, and career mobility across all levels of our organisation.

We offer meaningful opportunities for growth, a culture of inclusion, and a strong commitment to transparency and integrity in everything we do.

Job Description

Senior Integration Engineer

We are seeking an experienced API Engineer to design, build, secure, and operate enterprise-grade APIs that integrate cloud platforms with on‑premise banking application suites. The role focuses on developing reliable and scalable integration services, enabling secure data exchange across channels and systems (core banking, payments, fraud, risk, CRM, digital platforms), while meeting stringent regulatory, availability, and security requirements.

You will work closely with solution architects, platform engineers, security teams, and business stakeholders to deliver API products aligned to bank integration patterns, including synchronous REST services and event-driven integrations.

Direct line reporting:

• Head of Architecture and Core Banking – Europe.

1. Accountabilities and Responsibilities

API Design & Delivery

• Design and implement RESTful APIs and integration services connecting cloud services to on‑prem banking systems.

• Create reusable API patterns for common banking capabilities (customer, accounts, payments, transactions, entitlements).

• Define and maintain API contracts (OpenAPI/Swagger), versioning strategies, and backward compatibility.

• Deliver APIs that meet performance, latency, availability, and resiliency expectations (e.g., timeouts, retries, circuit breakers).

Security, Compliance & Controls

• Implement strong API security controls: OAuth2/OIDC, mTLS, JWT validation, request signing, API gateway policies, and rate limiting.

• Apply secure coding practices and align solutions with bank security standards, audit requirements, and regulatory expectations (e.g., least privilege, encryption in transit/at rest).

• Collaborate with security to support threat modeling, pen test remediation, and secure configuration management.

Cloud–On‑Prem Connectivity & Integration

• Build and operate integration flows using enterprise tooling (examples: API gateway, service mesh, ESB/iPaaS, message brokers).

• Implement hybrid connectivity patterns such as VPN/ExpressRoute/Direct Connect equivalents, private endpoints, network segmentation, and secure routing.

• Integrate with on‑prem technologies (e.g., MQ, legacy services, SOAP where required, databases, batch systems) and modern cloud services.

Observability & Operations

• Implement observability: structured logging, distributed tracing, metrics, dashboards, and alerting.

• Support production deployments and incident triage; conduct root cause analysis and introduce reliability improvements.

• Automate CI/CD pipelines and Infrastructure/Configuration as Code where applicable.

Engineering Excellence

• Write clean, testable code (unit/integration/contract tests).

• Participate in code reviews, technical design reviews, and architecture governance.

• Document API products and integration runbooks for support and operational readiness.

2. Experience and Key Competencies:

Knowledge & Experience:

• 5+ years (adjust as needed) developing APIs/integration services in regulated enterprise environments; banking or financial services experience strongly preferred.

• BA/MBA in IT or relevant experience

• Proven experience building hybrid integrations: cloud to on‑prem application connectivity and secure data exchange.

• Strong hands-on experience with API design, implementation, and lifecycle management.

Technical Skills

• Strong proficiency in one or more of: Java (Spring Boot), .NET, Node.js, or Python for API development.

• Strong experience with API gateways (e.g., Apigee, Kong, Azure API Management, AWS API Gateway, Mulesoft, etc.).

• Experience with messaging/eventing platforms: Kafka, MQ, RabbitMQ, Azure Service Bus, etc.

• Experience with containerization and orchestration: Docker, Kubernetes/OpenShift.

• Strong understanding of integration patterns: sync/async, pub/sub, idempotency, retries, backpressure, saga/compensation, and data consistency.

• Strong understanding of data formats (JSON, XML, Avro) and schema evolution.

Security & Quality

• Practical experience implementing OAuth2/OIDC, mTLS, certificate management, secrets management (e.g., Vault, Key Vault, Secrets Manager).

• Experience with SDLC controls: SAST/DAST, dependency scanning, secure CI pipelines.

• Test automation: unit tests, integration tests, consumer-driven contract testing (e.g., Pact).

.

Personal Attributes

• Highly organised, proactive, and detail‑oriented, with the ability to operate at pace.

• Comfortable operating in ambiguity and adapting to changing priorities.

• Resilient, calm under pressure, and confident acting as an extension of the CIO.

• Trusted partner with a collaborative, inclusive leadership style.

• Banking domain knowledge: payments (SEPA/SWIFT), card processing, transaction monitoring, AML/KYC, customer onboarding.

• Exposure to 4th generation banking platforms such as (Thought Machine or 10X)

• Experience with service mesh (Istio/Linkerd) and zero trust patterns.

• Familiarity with TOGAF, enterprise integration architecture, or API product management.

• Experience with data privacy and retention requirements (GDPR), and operational controls.

Key Competencies:

Communications & Relationships:

• Excellent communication skills required to manage third party relationships. Ability to use insights and relationships to influence and deliver. The ability to build connections and partnerships within own business area and beyond, through formal and informal channels, utilising considerable tact, diplomacy and people skills.

Agility and innovation:

• Adapt quickly to changing priorities; create new and better ways for the organization to be successful.

Collaboration:

• Build partnerships and promote a culture of teamwork to drive on U.S. Bank.

Drive for results:

• Hold self and others accountable to consistently achieve meaningful results.

Ethics and trust:

• Maintain high ethical standards; gain the confidence and trust of others through honesty, integrity and authenticity.

Inclusion:

• Build a culture of equity and inclusion in which diverse ideas, talent and perspectives are welcomed and encouraged.

Customer centricity:

• Build strong customer relationships and deliver customer-centric solutions.

Commercial Judgement:

• Strong knowledge of business unit with the ability to understand USBE’s business and deliver the business performance needed to achieve USBE’s purpose and goals.

Managing Programs:

• Proven analytical, decision-making and problem-solving skills, with the ability to plan and implement appropriate measures to mitigate the impact of an event affecting USBE’s ability to achieve its objectives. To complete day-to-day activities in a manner which is consistent with legal, regulatory and stakeholder expectations.

3 Conduct Standards & Rules

• You must act with professionalism and integrity

• You must act with due skill and diligence

• You must be open and cooperative with the Central Bank of Ireland and other regulators

• You must disclose appropriately any information of which the Central Bank of Ireland would reasonably expect notice

Location expectations 

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

Accessibility

We are committed to providing an inclusive and accessible recruitment experience. If you need adjustments at any stage of the application or hiring process, please contact your recruiter for guidance and support.

Total Rewards

U.S. Bank is committed to fair, equitable, and transparent compensation practices in line with local regulatory and legal requirements. Our total rewards approach is designed to attract, retain, and support top talent while ensuring equal pay for work of equal value.

We offer a market-competitive compensation package that includes:

• Clearly defined salary ranges aligned with industry benchmarks and internal equity standards.

• Performance-based incentives for eligible employees (as defined by relevant plan rules), awarded through transparent, objective criteria that recognize both individual and company performance.

• Inclusive equitable benefits that are accessible to all employees and focused around our 3 main pillars of financial wellbeing, health & wellness).

• Continuous development opportunities including training, education support, and career progression pathways based on inclusive and transparent criteria.

• Employee recognition programs that celebrate achievements and milestones for all.

We regularly review our compensation and benefits to ensure they remain competitive, inclusive, and responsive to employee needs and market trends. Further details of the compensation package will be provided upon application.

We encourage candidates to explore the full value of our offer, including monetary and non-monetary benefits, at Employee benefits and development | U.S. Bank | Elavon.

Closing Date

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

We aim to provide timely updates throughout the process and encourage early applications to ensure consideration.