Ai Model Engineer - Remote/nationwide

About You You are a person who is passionate about serving as a core technical leader within the Innovation, Research & Development (IR&D) department. We need someone who is responsible for architecting, optimizing, and operationalizing advanced AI systems that power Signature Performance's WorkflowXM platform, agentic workflow automation tools, and AI-enabled healthcare administrative solutions. In the role of AI Model Engineer, you will design, fine-tune, evaluate, and deploy large language models (LLMs), multimodal models, retrieval systems, and agentic frameworks that support high-volume medical coding, billing, claims processing, health insurance discovery, eligibility verification, customer service support, EDI ingestion, and enterprise automation. About The Position AI Model Development & Optimization (40%) Design, fine-tune, distill, and optimize LLMs and multimodal models to support WorkflowXM and other enterprise AI initiatives. Implement PEFT/LoRA/Q-LoRA fine-tuning strategies for domain-specific healthcare tasks. Develop retrieval-augmented generation (RAG) pipelines using vector databases (e.g., Qdrant). Architect and evaluate model prompting frameworks, system prompts, and agentic prompt templates. Optimize inference speed, accuracy, grounding, and reliability across on-prem and cloud environments. Agentic AI System Engineering 25% Build and maintain tool-using AI agents, orchestrators, governance watchdog agents, and multi-agent workflows. Implement memory systems, shared context, scratchpads, tool-calling logic, and verification loops. Integrate AI agents with internal systems, including MCP servers, WorkflowXM modules, backend microservices, and data ingestion pipelines. Create reusable \"AI capability modules\" for insurance discovery, claims QA, coding assistance, EDI parsing, and document understanding. Model Evaluation, Guardrails & Compliance 15% Develop evaluation datasets, synthetic tests, and red-teaming harnesses for model quality assurance. Implement guardrails for PHI/PII protection, hallucination minimization, and HIPAA-compliant behavior. Monitor model drift, regressions, latency metrics, and accuracy degradation. Work closely with IR&D governance and security partners to align models with Data Ethics & AI Governance Policy (CCP-046). AI Infrastructure & Deployment Support 10% Collaborate with AI Systems Engineers and DevOps to deploy, containerize, and scale models in production. Support GPU/accelerator utilization strategy and model serving frameworks (vLLM, Ollama, HuggingFace, TensorRT-LLM). Assist in designing and maintaining model registries and versioned deployment systems. Ensure high-throughput, high-availability inference services for WorkflowXM and enterprise applications. Cross-Functional Collaboration & Innovation 10% Partner with analysts, developers, QA, clinical SMEs, and business stakeholders to translate operational needs into AI capabilities. Contribute to AI-driven modernization of claims processing, revenue cycle workflows, EHR optimization, and payer service operations. Support rapid prototyping, experimentation, and innovation aligned with IR&D's strategic priorities. Document architectural approaches, model behaviors, and best practices for internal knowledge growth. Minimum Requirements Education & Experience Bachelor's or Master's degree in Computer Science, AI/ML, Engineering, Applied Mathematics, or related field (or equivalent experience). 3--7+ years of hands-on experience designing, training, or deploying machine learning or deep learning models. 2+ years of direct experience with large language models, transformer architectures, or agentic AI systems. Technical Skills Strong proficiency with Python, PyTorch, HuggingFace Transformers, LangChain/LlamaIndex, and vLLM or similar inference engines. Expertise in fine-tuning, PEFT/LoRA tuning, prompt engineering, and RAG architectures. Experience deploying models using Docker, Kubernetes, GPU/TPU compute environments, and model-serving frameworks. Hands-on experience with vector databases (e.g., Qdrant), embeddings, and semantic search. Understanding of NER, NLP, document processing, and multimodal ingestion (audio, text, PDF, EDI). Ability to build agent-based systems with tool-calling, planning, verification loops, and chain-of-thought scaffolding. Preferred Requirements Healthcare Domain Knowledge Experience with health insurance, payer portals, COB/OHI logic, medical billing, claims processing, medical coding, or EDI/HL7/FHIR standards. Understanding of HIPAA, PHI/PII handling, and secure AI practices. Soft Skills Strong problem-solving and analytical mindset. Ability to work in fast-paced environments with ambiguous requirements. Clear communication skills for collaborating with technical and non-technical stakeholders. Passion for innovation and transforming administrative healthcare through AI. About Us You are uncommon. We are, too. We are looking for people to help us in our mission of working hard at lowering healthcare administrative costs for federal government agencies, payers, and providers. At Signature, our mission is to improve the health of our clients' business and make the lives of the people we work with better. As we continue to experience exponential growth, we are looking for uncommon individuals to enhance our vision. We will continue to accomplish our mission by leading with our values of Passion, Courage, Integrity, and Respect in all interactions, making us a consistent annual Best Places to Work organization. We need uncommon leaders with uncommon qualities to shape our uncommon culture and achieve our uncommon mission. Benefits Health Insurance Fully Paid Life Insurance Fully Paid Short- & Long-Term Disability Paid Vacation Paid Sick Leave Paid Holidays Professional Development and Tuition Assistance Program 401(k) Program with Employer Match Security Requirements U.S. Citizenship or naturalized citizenship is required for this position. All work on all positions at Signature Performance must be completed in the continental United States, Alaska, or Hawaii. Work Schedule Monday through Friday, 8am to 5pm CST | Compensation Range $100,000-$140,000/annually | Position Type Full Time Helping all candidates find great careers is our goal. The information you provide here is secure and confidential. We are now directing you to the original job posting. Please apply directly for this job at the employer’s website. #J-18808-Ljbffr