Sr. Developer, Web Services

The Senior Web Services Developer will work as a member of a team that designs, develops, tests, troubleshoots, and supports web services developed using modern languages and different frameworks. This role can include but is not limited to creating new web services, invoking external web services, modifying existing web services, fine tuning and configuring existing web services host settings.

This position is based at our Corporate Headquarters in Wood Dale, IL, with a planned relocation to the Merchandise Mart (Chicago) in early 2027.

What will you be responsible for:

• Design, develop, maintain, and test RESTful or SOAP web services using Java or Python.
• Work with the backend database and UI development teams
• Participate in the implementation of multiple web service applications
• Follow the change management, source code management, CI/CD practices and support the DevOps initiatives.
• Participate in all the steps in the software development life cycle to create and modify the software, following Agile methodologies.
• Ensure well-written, testable, and high-quality code is produced.
• Peer review code written by other developers.
• Perform testing of code/projects to ensure accuracy, integrity, and completeness to achieve desired results.
• Resolve issues affecting project scope, quality, effort, risk, and timeline.
• Serve as an API resources for guidance, instruction, and direction to API support stafAll other duties as assigned.
   

What you will need to be successful in this role: 

• Experience in JAVA object-oriented language, and familiarity with web frameworks for these languages (like Java Spring Boot for Java), and the ability to use these to create backend RESTful APIs.
• Experience with Docker images, containerization, and Kubernetes clusters.
• Experience with SQL and NoSQL databases, familiarity with ORM tools like Hibernate, database CDC (Data Change Capture), message queues like Kafka, stream processing with Apache Flink and Apache Spark.
• Experience with microservice architecture, distributed systems, and event-driven architecture.
• Experience with API security with authentication and authorization, including API keys, basic authentication, OAuth2, TLS Mutual Authentication, and IP restriction.
• Experience with modern CI/CD pipelines using DevOps tools.
• Familiarity with cloud services, especially Azure cloud: Azure App Services, Azure Kubernetes Service, API Management, Application Gateway, Azure Active Directory, Azure Cache for Redis, Azure Key Vaults, Application Insights, Azure Event Hub, Azure Container Registry, and Azure DevOps, etc.
• Experience using API performance/load testing tools, especially Apache JMeter, to Identify and resolve potential bottlenecks.
• Familiarity with New Relic or a similar observability platform.

The rewards of your career at AAR go far beyond just your salary: 

• Competitive salary and bonus package
• Comprehensive benefits package including medical, dental, and vision coverage.
• 401(k) retirement plan with company match
• Generous paid time off program
• Professional development and career advancement opportunities

Physical Demands/Work Environment:

• The physical demands and work environment characteristics described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.

• Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
• While performing the duties of this job, the employee may be regularly required to sit, stand, bend, reach and move about the facility.
• The environmental characteristic for this position is an office setting.
• Candidates should be able to adapt to a traditional business environment.

AAR provides accommodation in accordance wi