Senior Java Engineer: Rules Engine & Backend

Humana Inc; Nashville (TN); Hybrid; USD 107,000 - 147,000; Full time

Benefits offered by this job

Bonus incentive plan

Hybrid work arrangement

Job summary

Humana Inc. is seeking a Senior Software Engineer for Team Caliber to build and maintain the NBA platform's rules engine that determines member eligibility, suppression, frequency capping, and consent prior to actions.

You will work on Java/Spring, Drools, and Kafka-backed services in a backend-focused role with a strong emphasis on correctness and testability. You'll collaborate with product and compliance to translate business and regulatory requirements into reliable rules, while delivering

Qualifications

• Bachelor's degree in computer science or a 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

Kafka

Drools

REST APIs

Testing

Backend services

Cloud (Azure)

Kubernetes

Communication

Education

Bachelor's degree in computer science

Tools

Drools BRMS

React/TypeScript

Kafka

Job description

Humana Inc. is seeking a Senior Software Engineer for Team Caliber to build and maintain the NBA platform's rules engine that determines member eligibility, suppression, frequency capping, and consent prior to actions.

You will work on Java/Spring, Drools, and Kafka-backed services in a backend-focused role with a strong emphasis on correctness and testability. You'll collaborate with product and compliance to translate business and regulatory requirements into reliable rules, while delivering