Senior API & Integration Engineer

Horace Mann is a purpose-driven company that is passionate about educators. We are seeking a Senior API & Integration Engineer to design, build, and support APIs and application integrations across a complex enterprise environment. This role focuses on modern API development while supporting and gradually modernizing existing middleware and service bus capabilities.

Location: In person - Springfield, IL 
Department: Information Technology

The ideal candidate has hands-on experience with enterprise integration patterns, API lifecycle management, and cloud-based integration platforms, and is comfortable working in hybrid environments that span legacy systems (including mainframe and SOAP services) and modern cloud-native solutions. This role will play a key part in our ongoing migration from TIBCO BusinessWorks to Azure API Management and Azure-native integration technologies.

Key Responsibilities

• Design, develop, and maintain APIs and application integrations supporting business-critical systems.
• Build and enhance RESTful APIs, while maintaining and modernizing existing SOAP-based services.
• Develop and support integrations across:
• Internal enterprise applications
• Mainframe systems
• Vendor and SaaS platforms
• Implement integrations using Azure API Management and related Azure services (e.g., Logic Apps, Functions, Service Bus, Event Grid).
• Support and gradually migrate existing TIBCO BusinessWorks integrations to Azure-based solutions.
• Apply enterprise integration patterns (synchronous, asynchronous, messaging, event-driven).
• Ensure integrations meet security, performance, reliability, and scalability standards.
• Collaborate with architects, product teams, and application developers on integration design and best practices.
• Participate in code reviews, design reviews, and technical troubleshooting.
• Contribute to integration standards, documentation, and reusable components.
• Provide production support and participate in on-call rotation as required.

Required Qualifications

• Bachelor’s degree in Computer Science, Engineering, or equivalent experience.
• 5+ years of experience in middleware, API development, or application integration.
• Strong experience designing and building APIs and services.
• Hands-on experience with SOAP and REST service development and consumption.
• Experience working with enterprise service buses or middleware platforms (e.g., TIBCO BusinessWorks, MuleSoft, IBM Integration Bus, etc.).
• Experience integrating with legacy systems, including mainframe environments.
• Solid understanding of integration patterns, messaging, and distributed systems.
• Proficiency in at least one modern programming language commonly used for integration (e.g., Java, C#, or similar).
• Solid understanding of relational databases (SQL).
• Strong problem-solving skills and ability to work in complex, multi-system environments.

Preferred Qualifications

• Experience with Azure integration services, including:
• Azure API Management
• Azure Logic Apps
• Azure Functions
• Azure Service Bus or Event Grid
• Experience participating in or leading middleware modernization or cloud migration initiatives.
• Familiarity with API security concepts (OAuth 2.0, OpenID Connect, certificates).
• Experience with CI/CD pipelines for integration and API deployments.
• Knowledge of monitoring and observability for distributed integrations.
• Experience in regulated or large enterprise environments. (e.g., Financial Services, Insurance)

What We Offer

• Opportunity to work on enterprise-scale integration modernization
• Exposure to both legacy and modern cloud-native architectures
• Collaborative environment with strong architectural and engineering practices
• Competitive compensation and benefits
• Professional development and growth opportunities

Pay Range:

• $89,800.00 - $125,500.00  

Salary is commensurate to experien