Senior Software Engineer - NBA

Humana; United States; Hybrid; USD 140,000 - 170,000; Full time

Job summary

Humana is seeking a Senior Software Engineer to join Team Caliber, building and maintaining the NBA platform's rules engine. You will implement business rules in Java/Drools, expose them via REST APIs, and connect through Kafka events within a HIPAA-compliant environment.

You will design scalable backend services, ensure correctness and performance, and collaborate with Product and Compliance to translate regulatory needs into maintainable rules.

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 Boot

REST APIs

Kafka

CI/CD

Testing

Communication

Education

Bachelor's degree in computer science or relevant field

Tools

Drools

React

TypeScript

Kubernetes

Helm

Terraform

Azure

Job description

Become a part of our caring community

The Senior Software Engineer on Team Caliber builds and maintains the NBA platform's business rules engine - the system that determines member eligibility, suppression, frequency, and consent before any action is taken. Team Caliber is built in Java with the Drools rules engine and integrates with the rest of the platform through APIs and a Kafka event backbone. This is a hands-on backend-leaning full stack role for an engineer who writes clean, well-tested Java, reasons carefully about complex conditional logic, and cares about getting correctness right in a system where rules carry compliance weight.

Key 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.

Required 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.

Preferred Qualifications

• Hands-on experience with the Drools rules engine or another business rules management system (BRMS).
• Familiarity with front-end work (React/TypeScript) to support rule-authoring or admin interfaces.
• Experience in healthcare, insurance, or another regulated industry where business rules encode compliance requirements.
• Familiarity with Helm/Terraform for Kubernetes deployment.

Success Indicators

• State transitions are precise, deterministic, and resilient to retries
• Side effects reliably occur exactly once, even during failures or replays
• Systems recover gracefully from crashes and redeployments
• AI-driven tooling decreases defect rates and expedites debugging
• The state layer is trusted as the definitive source of truth across engineering teams

Why This Role is Critical

In contemporary automated platforms, correctness and reliability hinge on the integrity of state, not just requests. This role ensures that every state transition and side effect is executed once-and only once-providing a solid foundation for trust, reliability, compliance, and scalability throughout the system.

Additional Information

Qualified candidates are required to currently live in, or be willing to move to, a commutable distance for a hybrid (~3 days in-office) work arrangement

Location options are currently

• Washington, D.C. metropolitan area
• Louisville, KY metropolitan area
• Denver, CO metropolitan area
• Dallas, TX metropolitan area
• Ft. Lauderdale, FL metropolitan area

Work Style: Remote/Hybrid

Occasional travel to Humana's offices for training or meetings may be required.

Work Hours : Typical business hours are Monday-Friday, 8 hours/day, 5 days/week-- some flexibility might be possible, depending on business needs.

Very minimal travel might be required for training, meetings, and/or conferences

Interview Format

As part of our hiring process, we will be using on-demand technology provided by Hire Vue, a third-party vendor. This technology provides our team of recruiters and hiring managers with an enhanced method for decision-making through on-demand candidate assessments.

If you are selected to move forward from your application prescreen, you will receive correspondence inviting you to participate in an on-demand assessment with pre-determined questions. You should anticipate the assessment to take approximately 10-15 minutes.

Your on-demand assessment will be reviewed, and you will subsequently be informed if you will be moving forward to next round of interviews.

SSN Task via Workday

Should you be extended a formal employment offer you will receive a request to enter your SSN into our Workday system to scan for duplicate profiles