Senior Software Engineer - Java/Spring/API

Enterprise Mobility is a leading provider of mobility solutions, owning and operating the Enterprise Rent-A-Car, National Car Rental and Alamo Rent A Car brands through its integrated global network of independent regional subsidiaries. Enterprise Mobility and its affiliates offer extensive car rental, carsharing, truck rental, fleet management, retail car sales, as well as travel management and other transportation services, to make travel easier and more convenient for customers. Privately held by the Taylor family of St. Louis, Enterprise Mobility together with its affiliate Enterprise Fleet Management manages a diverse fleet of 2.4 million vehicles and accounted for nearly $39 billion in revenue through a network of more than 9,500 fully-staffed neighborhood and airport rental locations in more than 90 countries and territories.

At the center of it all, our dedicated IT teams innovate, design and develop the technology that is redefining how customers rent, buy and share vehicles from our family of brands. Here, you will be part of a diverse and talented team that creates and delivers powerful technology solutions for our customers and employees across the world with the resources and support to develop in a variety of career paths.

As an Enterprise Mobility team member, we offer an excellent package with market-competitive pay, comprehensive healthcare packages, 401k matching & profit sharing, schedule flexibility, work from home opportunities, paid time off, and organizational growth potential.

This position is eligible for a hybrid work schedule, which includes the ability to work from home, while also requiring to be in person as needed at our Lakeside and/or Clayton Corporate HQ campus locations in St. Louis, Missouri.

About the role

The CarShare team is responsible for delivering and supporting digital experiences that enable vehicle sharing, reservations, and mobility services. The Mobile Services Interface (MSI) platform serves as a critical orchestration layer connecting customer-facing applications with enterprise and third-party services that support booking, reservation, and vehicle-sharing experiences.

As an MSI Engineer 2, you will play a critical role in supporting the reliability, availability, and operational health of the Global Booking Orchestration CarShare platform and related technology ecosystem. This is an exciting opportunity to join a collaborative team where you will work on complex integration technologies, contribute to operational excellence, and play a meaningful role in supporting critical mobility services used by customers around the world.

Responsibilities

• Collaborate with product, infrastructure, security, and vendor teams to deliver enhancements and new features, support maintenance activities, and perform technology upgrades.
• Monitor and support the health, performance, and availability of CarShare applications, Global Booking Orchestration services, and supporting technology platforms.
• Participate in a rotating on-call support schedule (typically every 6 weeks) to provide after-hours support for production incidents, service disruptions, and critical business-impacting issues, ensuring timely response and resolution.
• Lead production support and operational readiness efforts by coordinating incident resolution, supporting releases and deployments, and driving root-cause analysis and preventative solutions that improve platform stability and customer experience.
• Support integrations between booking platforms, vehicle systems, external vendors, and downstream services.
• Maintain technical documentation, including system dependencies, operational procedures, support documentation, and troubleshooting guides.
• Monitor system alerts, performance trends, and operational risks to proactively identify issues, drive resolution, and improve platform stability, scalability, supportability, and overall operational health through enhanced monitoring, automation, and process improvements.

Requirements

• Must be presently authorized to work in the U.S. without a requirement for work authorization sponsorship by our company for this position now or in the future.
• Must reside in St. Louis, Missouri, or immediate surrounding area.
• 3 or more years of experience supporting enterprise Java applications in production environments, especially RESTful web services applications using frameworks such as Spring/Spring Boot.
• Knowledge of source control methodologies and experience using Git-based source control (e.g., Bitbucket) and participating in peer code reviews.
• Knowledge of API design best practices and experience with API testing tools such as Postman and SoapUI.
• Experience troubleshooting APIs, application integrations, and distributed system interactions across multiple platforms.
• Experience with incident management, root cause analysis, and supporting technology changes across multiple platforms.
• Must be committed to incorporating security into all decisions and daily job responsibilities.

Preferred qualifications

• Bachelor's degree in Computer Science, Computer Information Systems, Management Information Systems, or related field.
• Experience supporting customer-facing digital platforms.
• Experience integrating with enterprise services using RESTful JSON and/or SOAP-based APIs.
• Experience with cloud environments and modern, cloud-native application architectures.
• Experience supporting mobility, transportation, fleet management, or connected vehicle technology.
• Experience working with third-party vendors and external technology integrations.
• Knowledge and working experience with Agile methodologies using tools such as Jira and Confluence.

Skills and abilities

• Strong communication skills to effectively collaborate with and communicate technical information to various IT teams, business partners, and vendors.
• Ability to work effectively in a team-oriented environment while also independently managing priorities and responsibilities.
• Strong troubleshooting, analytical and problem-solving skills, including the ability to identify root causes and drive solutions.
• Ability to write clean, maintainable, and testable code following established coding standards and design patterns.
• Strong documentation skills and the ability to create and maintain technical support materials.
• Commitment to incorporating security, reliability, and operational excellence into daily job responsibilities.
• Continuous learning mindset and demonstrated curiosity when evaluating new technologies, tools and approaches.