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 Business Works to Azure API Management and Azure‑native integration technologies
.

• 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 Business Works 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.

• 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 Business Works, Mule Soft, 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.

• Experience with Azure integration services
  , including:
• 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)

• 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

• $89,800.00 - $

Salary is commensurate to experience, location, etc.

Horace Mann was founded in 1945 by two Springfield, Illinois, teachers who saw a need for quality, affordable auto insurance for teachers. Since then, we’ve broadened our mission to helping all educators protect what they have today and prepare for a successful tomorrow. And with our broadened mission has come corporate growth:
We serve more than 4,100 school districts nationwide, we’re publicly traded on the New York Stock Exchange…