Senior Backend Engineer, Rules Engine & Kafka

Humana Inc; Columbia (SC); Hybrid; USD 107,000 - 147,000; Full time

Job summary

Humana, Inc. on Team Caliber seeks a Senior Software Engineer to build and maintain the NBA platform's rules engine that governs member eligibility, suppression, frequency capping, and consent.

The role uses Java, Spring Boot, and Drools with Kafka integration, delivering backend services and robust APIs. You will design scalable rule processing in a PHI-handling environment, ensure test coverage, and collaborate with product and compliance to meet regulatory requirements.

Qualifications

• Bachelor's degree in computer science or relevant field.
• 5+ years of software engineering experience with strong Java and Spring/Spring Boot skills.
• 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

Drools

Kafka

Kubernetes

Azure

CI/CD

Testing

React/TypeScript

Education

Bachelor's degree in computer science or relevant field

Tools

Drools BRMS

Kafka

Kubernetes

Helm/Terraform

Job description

Humana, Inc. on Team Caliber seeks a Senior Software Engineer to build and maintain the NBA platform's rules engine that governs member eligibility, suppression, frequency capping, and consent.

The role uses Java, Spring Boot, and Drools with Kafka integration, delivering backend services and robust APIs. You will design scalable rule processing in a PHI-handling environment, ensure test coverage, and collaborate with product and compliance to meet regulatory requirements.