Senior Software Engineer - Next Best Action - Remote Eligible

Senior Software Engineer

Become a part of our caring community and help us put health first. We are seeking an accomplished Senior Software Engineer to design, implement, and operate mission-critical stateful services that form the backbone of real-time, automated decisioning and personalization platforms. These systems are responsible for maintaining authoritative state, orchestrating lifecycle transitions, and ensuring reliable downstream effects—often in high-concurrency, low-latency environments. This position is ideal for engineers with a strong grasp of state machines, idempotency, distributed systems, and "exactly-once" execution semantics. You will also employ advanced AI-assisted and agentic engineering tools to drive correctness, velocity, resilience, and scalability.

Key Responsibilities

• State Machine Architecture & Implementation
• Transactional State Memory & Exactly-Once Processing
• Reliable Side Effects via Outbox Pattern
• Distributed Systems & Concurrency Management
• AI-Assisted & Agentic Engineering Practices
• Observability, Auditability & Trust
• Collaboration & Technical Leadership

Use your skills to make an impact

Required Qualifications

• 6+ years of experience in backend or platform engineering
• Demonstrated hands-on expertise with state machine modeling and lifecycle management
• Transactional state stores
• Idempotent API and workflow design
• In-depth understanding of exactly-once or effectively-once processing
• Failure modes in distributed environments
• Proficiency in one or more contemporary languages (e.g., Java, Kotlin, Go, Python)
• Experience with AI-assisted development tools for productivity and code quality

Preferred Qualifications

• Experience with outbox, transactional messaging, or event sourcing patterns
• Familiarity with low-latency, high-throughput architectures
• Operational experience in systems requiring strict auditability and correctness
• Background in regulated or mission-critical domains

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

Humana values personal identity protection. Please be aware that applicants may be asked to provide their Social Security Number, if it is not already on file. When required, an email will be sent from Humana@myworkday.com with instructions on how to add the information into your official application on Humana's secure website.

To ensure Home or Hybrid Home/Office employees' ability to work effectively, the self-provided internet service of Home or Hybrid Home/Office employees must meet the following criteria: At minimum, a download speed of 25 Mbps and an upload speed of 10 Mbps is required; wireless, wired cable or DSL connection is suggested. Satellite, cellular and microwave connection can be used only if approved by leadership. Employees who live and work from Home in the state of California, Illinois, Montana, or South Dakota will be provided a bi-weekly payment for their internet expense. Humana will provide Home or Hybrid Home/Office employees with telephone equipment appropriate to meet the business requirements for their position/job. Work from a dedicated space lacking ongoing interruptions to protect member PHI / HIPAA information. Travel: While this is a remote position, occasional travel to Humana's offices for training or meetings may be required.

Scheduled Weekly Hours 40

Pay Range $106,900 - $147,000 per year

This job is eligible for a bonus incentive plan. This incentive opportunity is based upon company and/or individual performance.

About us

Humana Inc. (NYSE: HUM) is committed to putting health first – for our teammates, our customers and our company. Through our Humana insurance services and CenterWell healthcare services, we make it easier for the millions of people we serve to achieve their best health – delivering the care and service they need, when they need it. These efforts are leading to a better quality of life for people with Medicare, Medicaid, families, individuals, military service personnel, and communities at large.

Equal Opportunity Employer

It is the policy of Humana not to discriminate against any employee or applicant for employment because of race, color, religion, sex, sexual orientation, gender identity, national origin, age, marital status, genetic information, disability or protected veteran status. It is also the policy of Humana to take affirmative action, in compliance with Section 503 of the Rehabilitation Act and VEVRAA, to employ and to advance in employment individuals with disability or protected veteran status, and to base all employment decisions only on valid job requirements. This policy shall apply to all employment actions, including but not limited to recruitment, hiring, upgrading, promotion, transfer, demotion, layoff, recall, termination, rates of pay or other forms of compensation and selection for training, including apprenticeship, at all levels of employment. Humana complies with all applicable federal civil rights laws and does not discriminate on the basis of race, color, national origin, age, disability, sex, sexual orientation, gender identity or religion. We also provide free language interpreter services. See our https://www.humana.com/legal/accessibility-resources?source=Humana_Website.