Senior Integration Engineer

U.S. Bank; Ireland; On-site; EUR 70,000 - 90,000; Full time

Benefits offered by this job

Market-competitive compensation

Performance-based incentives

Inclusive benefits focused on financial wellbeing

Job summary

U.S. Bank is looking for an experienced API Engineer to design, build, secure, and operate enterprise-grade APIs that integrate cloud platforms with on-prem banking application suites. The role involves developing reliable integration services for secure data exchange across systems, meeting regulatory and security requirements.

Key responsibilities include implementing RESTful APIs, ensuring security controls, and supporting production deployments. Candidates should have over 5 years of experience in regulated environments, particularly in banking.

Qualifications

• 5+ years developing APIs in regulated environments, preferably in banking.
• Proven experience building hybrid integrations between cloud and on-premise systems.
• Strong hands-on experience with API design and lifecycle management.

Responsibilities

• Design and implement RESTful APIs for banking applications.
• Ensure API security controls and compliance with regulations.
• Automate CI/CD pipelines for deployment efficiency.

Skills

API development

Programming (Java, .NET, Node.js, Python)

API gateways experience

Cloud integration

Security protocols (OAuth2, mTLS)

Education

BA/MBA in IT or relevant experience

Tools

Docker

Kubernetes/OpenShift

Kafka

Job description

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.

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 (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 (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 (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 (MQ, legacy services, SOAP, 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.

Experience and Key Competencies

Knowledge & Experience

5+ years developing APIs and 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 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 (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, data consistency.
• Strong understanding of data formats (JSON, XML, Avro) and schema evolution.
• Experience implementing OAuth2/OIDC, mTLS, certificate management, secrets management (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 (Pact).

Personal Attributes

• Highly organised, proactive, and detail‑oriented.
• Operates effectively at pace and adapts to changing priorities.
• Resilient, calm under pressure, and confident as an extension of the CIO.
• Trusted partner with a collaborative, inclusive leadership style.
• Banking domain knowledge (payments, card processing, AML/KYC, customer onboarding).
• Exposure to 4th‑generation banking platforms (Thought Machine, 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).

Key Competencies

• Excellent communication skills; manage third‑party relationships.
• Influence and deliver through formal and informal collaboration.
• Adapt quickly to changing priorities; create new and better ways for the organization.
• Build partnerships and promote a culture of teamwork to drive on‑time results.
• Maintain high ethical standards; gain confidence and trust through honesty, integrity, authenticity.
• Build a culture of equity and inclusion; welcome diverse ideas, talent, and perspectives.
• Build strong customer relationships and deliver customer‑centric solutions.
• Strong commercial judgment and ability to understand business objectives.
• Proven analytical, decision‑making, and problem‑solving skills; plan and implement appropriate measures to mitigate impacts.

Conduct Standards & Rules

• Act with professionalism and integrity.
• Act with due skill and diligence.
• Act openly and cooperatively with the Central Bank of Ireland and other regulators.
• Disclose appropriately information 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 adjustments are needed at any stage of the application or hiring process, please contact your recruiter for guidance and support.

Total Rewards

• Market‑competitive compensation package with salary range aligned to internal equity and industry benchmarks.
• Performance‑based incentives for eligible employees awarded through transparent, objective criteria.
• Inclusive benefits focused on financial wellbeing, health & wellness.
• Continuous development opportunities: training, education support, career progression pathways.
• Employee recognition programs celebrating achievements and milestones.
• Regular review of compensation and benefits to remain competitive and responsive to employee needs.