Sr. Engineer, AI Platform

Carex is partnering with a biotech industry partner to identify a Senior AI Platform Infrastructure Engineer to lead the architecture, development, and operation of a scalable, secure, and reliable AI/ML platform supporting cancer diagnostics. This hands‑on technical leadership role is responsible for the cloud and Kubernetes foundation, GPU infrastructure, model serving, workflow orchestration, infrastructure automation, and platform observability. The engineer will collaborate with AI Platform Software and Safety leads to deliver robust infrastructure that supports the full machine learning lifecycle while balancing performance, security, reliability, and cost.

Location:Hybrid onsite in Madison, WI. Candidates must be authorized to work in the United States without employer sponsorship, now or in the future.

• Architect, build, and maintain the platform’s cloud infrastructure and Kubernetes foundation, including network topology, private connectivity, cluster provisioning, upgrades, security, and multi‑tenant isolation.
• Lead platform expansion across clusters and regions, addressing identity federation, data placement, traffic management, failure domains, and multi‑cloud strategies as needed.
• Own infrastructure‑as‑code and Git Ops practices, including reusable modules, state management, environment promotion, drift detection, testing, and rollback strategies.
• Build and operate CI/CD pipelines and deployment tooling in collaboration with the AI Platform Software lead.
• Design and operate production model‑serving and GPU infrastructure for large language models and predictive models, including scheduling, autoscaling, low‑latency inference, performance optimization, capacity planning, and cost attribution.
• Partner with AI Platform Software and Safety leads to support reproducible data, feature, and training pipelines; dataset‑to‑model lineage; promotion environments; controlled rollouts; and automated evaluation and deployment gates.
• Architect and operate workflow orchestration and event‑streaming systems, including scheduling, event‑driven triggers, retries, idempotency, schema management, delivery guarantees, and cross‑region replication.
• Establish infrastructure observability, service‑level objectives, proactive monitoring, and disaster‑recovery strategies aligned with business requirements for recovery time, recovery point, and cost.
• Serve as an escalation point for complex infrastructure incidents and lead post‑incident reviews to drive systemic reliability improvements.
• Own infrastructure security and governance, including identity and access management, secrets management, network policies, workload isolation, auditability, and automated compliance controls.
• Contribute directly to production software development through design, coding, testing, code reviews, and deployment.
• Mentor engineers, represent the infrastructure function in technical design reviews, and contribute to long‑term technology planning.
• Promote accountability, innovation, integrity, quality, teamwork, inclusion, and reliable execution.

• Bachelor’s degree in Computer Science, Artificial Intelligence, Data Science, or a related field.
• Demonstrated expertise designing and deploying AI solutions that deliver measurable business impact.
• Strong understanding of ethical considerations in AI systems.
• At least three years of project leadership experience, including Agile project management and Scaled Agile Frameworks (SAFe).
• Advanced proficiency with machine learning frameworks, Python, and cloud platforms.
• Strong analytical, troubleshooting, and problem‑solving skills, with expertise in AI/ML techniques.
• Production software development experience with Python, Go, and/or Rust.
• Experience leading…