Senior Software Engineer - NBA

Humana is a leading U.S. healthcare company serving members through insurance and healthcare services. The Senior Software Engineer will architect, develop, and maintain real-time action and policy platforms using microservices, resilient data models, enterprise rules engines, and AI-assisted engineering practices. The role also focuses on testing, observability, governance, collaboration, and technical leadership.

Responsibilities:

• Architect, implement, and operate microservices that deliver: Action and variant metadata; Context-aware policy and eligibility evaluation; Versioned, read-optimized APIs for high-performance runtime consumption
• Guarantee that services are: Highly available, with low latency; Horizontally scalable for increased demand; Backward compatible to support safe evolution and upgrades
• Apply industry best practices for API design, schema evolution, service isolation, and secure integration
• Design, deploy, and maintain resilient database schemas to support: Comprehensive action and variant catalogs; Versioning, lifecycle management, and effective dating; Rule bindings and complex metadata relationships
• Select and operate appropriate data stores (relational, document, key-value) tailored to workload and scalability requirements
• Implement and monitor: Schema migration and backward compatibility strategies; Indexing and query optimization for performance; Data integrity, consistency, and reliability; Auditability and traceability for compliance and governance
• Integrate and manage enterprise-grade rules engines to support: Eligibility, constraints, and business policies; Suppression, cooldowns, exclusions, and other operational guardrails; Policy-driven allow/deny logic
• Work with technologies such as Drools (DRL/DMN), IBM ODM, DMN-based services, OPA/Rego, or similar
• Ensure rule execution is deterministic, versioned, stateless, and free from unintended side effects
• Utilize AI-powered and agentic tools to: Generate and refactor database schemas and service logic; Streamline rule authoring, validation, and ongoing refactoring; Detect and address conflicting or redundant rules early in the development cycle; Automatically produce comprehensive test cases and explore edge scenarios
• Apply AI responsibly to reduce manual effort while safeguarding clarity, correctness, and strong governance
• Develop automated tests for: Database migrations and schema changes; Service-level contracts and API backward compatibility; Rules behavior, precedence, and edge cases
• Ensure platforms are fully observable and resilient, featuring: Structured logging, metrics, and alerting; Clear error handling, fallback strategies, and robust incident management
• Support audit and compliance requirements through traceable and reproducible system behavior
• Work closely with platform, data, and machine learning teams to maintain clean integration points and shared standards
• Participate actively in architecture and design reviews to uphold platform quality
• Mentor junior engineers and contribute to technical standards and best practices

Requirements:

• Minimum 6 years of experience in backend or platform engineering
• Proven ability to build:
• Microservices and REST/gRPC APIs
• Database-backed systems with complex, evolving schemas
• Deterministic rules or policy-driven platforms
• Direct experience integrating enterprise rules engines (Drools, ODM, DMN, OPA, or similar)
• Strong proficiency in Java and/or Python
• Experience using AI-assisted development tools for increased productivity and accuracy
• Work from a dedicated space lacking ongoing interruptions to protect member PHI / HIPAA information
• Experience designing versioned schemas and backward-compatible APIs
• Knowledge of high-throughput, low-latency architectures
• Familiarity with systems requiring explainability, auditability, and strong compliance
• Background in regulated or high-compliance domains
• Work Style:** Remote/Hybrid - Preferably Boston, MA