Enterprise

Senior Systems Engineer - Site Reliability Engineering

Location
St. Louis - Brentwood, Richmond Heights, Clayton, Maplewood & central areas
Category
Technology - All Other Positions
Job ID
2026-557997

Overview

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.

Responsibilities

The IT Rental Operations Products team is responsible for the development and support of products that provide mission critical rental ticketing business capabilities.  You will be responsible for implementing enhancement changes, monitoring product health, long and short-term capacity planning, resolving production issues and designing initiatives planned to continue to evolve our services to align with our new API-first strategy.  You will work closely with many different client teams such as Greenlight, Frictionless, kiosks, mobile applications, and websites to ensure a consistent experience for our customers.  It is a very exciting time to be a part of the team as we continue to evolve in our support and development of new solutions and enable our business to grow through the implementation of new capabilities. 

 

The Senior Systems Engineer (Engineer 2) is responsible for ensuring the availability, performance, efficiency, change management, monitoring, emergency response, and capacity planning for High Availability (HA) Rental Systems.  These systems are a hybrid collection of Cloud, Web Services, and Legacy solutions.  The ideal candidate will be experienced with Site Reliability Engineering, incorporating aspects of software engineering and applying them to infrastructure and operations support.  This position creates a bridge between development teams and operations by applying a software engineering mindset to system administration topics, and vice versa.

 

As a Senior Systems Engineer you will be expected to use your technical knowledge to routinely monitor solution health to ensure all rental solutions are meeting established SLAs.  You will be called upon to assist with the resolution of production issues that can include performance degradation, capacity concerns, and outage events. In addition, you will be responsible for monitoring and ensuring system health during maintenance events such as patching and upgrades. The eventual comprehension of the complete rental solution ecosystem will be expected to fully participate in problem solving and troubleshooting efforts.  We are looking for a talented individual that can serve as a subject matter expert in their area of focus and represent their department on complex assignments. You will be responsible for evaluating elements of technology's effectiveness, research, investigation, and make recommendations for improvements that result in increased solution consistency and reliability.

  • Contributes to the development of strategic capacity planning for the department
  • Focus is on production infrastructure support and operational strategic activities
  • Monitors key performance metrics; escalates and addresses problems
  • Subject matter expert in more than one area of responsibility; represents team within and outside own department
  • Assists with project planning; provides technical expertise to project teams and/or serves as technical lead on project teams within area/department
  • Works on large, complex assignments
  • Has significant autonomy over completion of day-to-day work and receives general instructions on new projects or assignments
  • Defines, develops, communicates, and implements standards, processes, and procedures for the team or department
  • Establishes, maintains and fosters relationships both within and outside the team and department
  • Collaborates with Architects and recommends adjustments to the architecture to improve the overall capacity, performance, and quality of a solution
  • Provides, develops, and maintains documentation for elements of technology
  • Provides instruction and guidance to less senior team members on new tasks and assignments; ensures deadlines are met
  • Actively explores new technologies and embraces challenges that extend beyond current areas of expertise

As part of a collaborative team, you’ll work closely with peers across disciplines to design, build, and maintain robust solutions. Your expertise in site reliability technologies will be key in driving proactive system improvements and ensuring seamless operations. We're looking for someone who thrives on teamwork, innovation, and solving complex challenges. If you're excited about playing a critical role in providing the best solutions possible, we’d love to hear from you! Apply today!

 

Equal Opportunity Employer/Disability/Veterans

Qualifications

Required:

  • 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
  • Must be able to work a schedule within U.S. Central Standard Time core business hours.
  • 3+ years of experience working in a software development engineering environment supporting languages and technologies such as JAVA, Web Services, C/C++, and PL/SQL
  • 2+ years of experience with Middleware use and configuration with Tuxedo, WebLogic and TomCat
  • 2+ years of experience as an AIX/Linux sysadmin and experience with associated tools
  • 2+ years of experience with scripting for automation, system administration, or application support (e.g., Shell/Bash, Python, Perl, PowerShell, or similar)
  • 1+ years of experience with Splunk, Dynatrace or equivalent tools
  • Must be committed to incorporating security into all decisions and daily job responsibilities

Preferred:

  • Bachelor's degree in Computer Science, Computer Information Systems, Management Information Systems, or related field preferred
  • General network engineering background
  • Knowledge of system/infrastructure testing, problem solving and troubleshooting concepts 
  • Knowledge of capacity planning methodologies
  • Knowledge of hardware concepts as they apply across infrastructure arenas, including networking devices, topologies and resiliency patterns
  • Working knowledge of SQL

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