Senior Java Engineer: Rules Engine & Kafka (Hybrid)

Humana Inc; Concord (NH); Hybrid; USD 107,000 - 147,000; Full time

Job summary

Humana, Inc. is seeking a Senior Software Engineer for Team Caliber to design, build, and maintain the NBA platform's business rules engine. You will work on Java/Spring services, expose REST APIs, and integrate with Kafka events. The role emphasizes correctness, performance, and compliance in a PHI-handling environment.

The position offers remote/hybrid work with occasional travel for training and meetings, and requires strong testing discipline and clear cross-functional communication.

Qualifications

• Bachelor's degree in computer science or relevant field.
• 5+ years of software engineering with strong Java and Spring/Spring Boot.
• Experience building and maintaining backend services and REST APIs in production.
• Comfort designing and reasoning about complex conditional/business logic.
• Working knowledge of event-driven integration and Kafka producer/consumer patterns.
• Experience operating on cloud infrastructure (Azure or equivalent) with containers/Kubernetes and CI/CD.
• Strong testing discipline and attention to correctness.
• Clear communicator across engineering, product, and compliance.

Responsibilities

• Rules engine development — Design, build, and maintain business rules in Java and Drools that govern eligibility, suppression, frequency capping, and consent.
• Backend services — Build and own the Java/Spring services and REST APIs that expose the rules engine to the rest of the platform.
• Event integration — Produce and consume Kafka events to connect the rules engine to upstream signals and downstream decisioning and activation.
• Correctness and testing — Write thorough tests for rule logic and services; treat rule correctness as a first-class, auditable concern.
• Performance — Keep rule evaluation fast and predictable as the ruleset and traffic grow.
• Quality — Run and participate in code reviews, uphold engineering standards, and ship production-ready code in a PHI-handling environment.
• Collaboration — Partner with Product and compliance to turn business and regulatory requirements into clear, maintainable rules.

Skills

Java

Spring/Spring Boot

REST APIs

Kafka

Drools

Testing

Cloud (Azure)

Kubernetes

CI/CD

Communication

Education

Bachelor's degree in computer science or relevant field

Tools

React

TypeScript

Kubernetes

Terraform

Helm

Job description

Humana, Inc. is seeking a Senior Software Engineer for Team Caliber to design, build, and maintain the NBA platform's business rules engine. You will work on Java/Spring services, expose REST APIs, and integrate with Kafka events. The role emphasizes correctness, performance, and compliance in a PHI-handling environment.

The position offers remote/hybrid work with occasional travel for training and meetings, and requires strong testing discipline and clear cross-functional communication.