Senior Software Engineer, Backend

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Full Time Calabasas, CA, US

4 days ago Requisition

Salary Range: $ To $ Annually

At Ama Waterways, we believe meaningful careers begin with purpose, passion and a shared commitment to delivering unforgettable experiences. For those who value curiosity, connection and personal enrichment, Ama Waterways offers the opportunity to help craft meaningful river journeys that invite travelers to follow their own current. Built on a foundation of heartfelt hospitality, we treat our guests—and each other—with genuine care, warmth and respect.

Ama Waterways fosters a collaborative environment both onboard our ships and across our global network of offices, where team members grow together, support one another and take pride in upholding the high standards and thoughtful service our company is known for.

We invite talented, motivated professionals to explore our career opportunities and begin their journey with Ama Waterways today.

This position is primarily responsible for the design, development, and ongoing maintenance of the backend services that power Ama Waterways' consumer and partner digital products, across all aspects of the project life cycle from inception to implementation. The Senior Software Engineer (Backend) builds scalable, secure, high-performance APIs and services — including inventory, leads, identity, and notification services — that support booking, pricing, and guest experiences.

This role performs duties related to building software applications and the technical architecture of web-based software products. Specific team assignment will be determined based on portfolio needs at time of hire.

• Design, develop, code, test, and debug complex backend services and APIs, or make significant enhancements to existing services, across all layers of a multitier architecture.
• Build and maintain RESTful and GraphQL APIs using .NET (C#) and/or Node.js that expose inventory, pricing, leads, identity, and guest-experience capabilities.
• Take ownership of the configuration, development, and maintenance of services that are critical to the organization's mission and core business operations.
• Design event‑driven and message‑based integrations (e.g., Service Bus queues and topics) with attention to reliability, idempotency, dead‑letter handling, and audit trails.
• Develop and maintain source‑of‑truth and synchronization services, including caching strategies (e.g., Redis) and data consistency across upstream and downstream systems.
• Create and document detailed design specifications, technical design documentation, and unit test cases to ensure all business and functional requirements are met.
• Integrate services with external systems and data sources, including CRM (Salesforce), email/notification providers, and the reservation system of record.
• Optimize services for performance, scalability, and low‑latency read/write paths; profile and performance‑tune applications as needed.
• Implement identity and access controls using Auth0 or equivalent (OIDC/OAuth2, JWT), including role‑based access control and audit logging.
• Adhere to secure coding standards and apply application security principles throughout development; remediate identified vulnerabilities prior to release.
• Perform unit, integration, and regression testing, and apply test‑driven development (TDD) practices to ensure code quality and system stability.
• Build, configure, and maintain CI/CD pipelines and automated build, test, and deployment processes across multiple environments (Dev, UAT, Prod).
• Perform troubleshooting, root‑cause analysis, and escalation for production issues and incidents; participate in on‑call rotation as required.
• Provide project effort estimations and communicate effectively with technical and non‑technical groups, both internally and externally.
• Provide mentoring and technical guidance to junior developers on and off the team.
• Maintain current knowledge of relevant backend technologies, cloud services, and development tools, and evaluate their…