Senior AI Engineer

About Us Abacus Insights is transforming how data and AI work for health plans. Our mission is simple: make healthcare data usable, so the people responsible for care and cost decisions can act faster, with confidence. As the AI and Data Platform for Payer Intelligence, we help health plans break down data silos to create a single, trusted data foundation. That foundation powers better decisions—so plans can improve outcomes, reduce waste, and deliver better experiences for members and providers alike. Backed by $100M from top investors, we're tackling big challenges in an industry that's ready for change. Our platform enables GenAI use cases by delivering clean, connected, and reliable healthcare data to support automation, prioritization, and decision workflows—and it's why we are leading the way. Our innovation begins with people. We are bold, curious, and collaborative—because the best ideas come from working together. We embrace the thoughtful use of AI and automation to drive innovation and efficiency, and we look for individuals who are curious and adaptable—those excited to leverage emerging technologies to enhance how we work—while keeping human insight, connection, and our clients at the center of every decision. Ready to make an impact? Join us and let's build the future together. About the Role AI is the engine behind where Abacus is headed next — and this role sits at the controls. We're looking for someone who has been a tech lead before — someone who knows what it feels like to be the senior-most person in the room on a project, and who's comfortable both setting the technical direction and doing the hands-on design work personally when it counts. This role isn't purely about overseeing; you'll be initiating projects, personally designing systems and architecture, and then coordinating with other teams — data quality engineers, platform engineers, DevOps, product owners, and the business — to bring that design to life. Mentorship is a real part of the job, but it's not a replacement for staying technical. You'll grow other engineers through code review, guidance, and coaching, while remaining deeply hands-on yourself — someone others come to because you can actually do the work, not just talk about it. You'll also serve as the liaison between technical capability and business need, helping product and business stakeholders understand what's feasible while making sure technical decisions stay grounded in real business priorities. Your day to day • Serve as the senior-most technical voice on projects you're part of, and act as the liaison between technical capability and business need — partnering with product managers and stakeholders to translate roadmap and customer priorities into technical direction, and translating technical realities back into terms the business side can plan around. • Help shape the direction of our applied AI areas and intelligence features, driving deployment of state-of-the-art AI models and systems that directly impact Abacus's products and services (Abacus Agents, MCP, SQL and RAG agents and tools, and more). • Develop novel data collection, fine-tuning, and LLM techniques, and design ML/AI pipelines for data preprocessing, feature engineering, model training, hyperparameter tuning, and evaluation — enabling rapid experimentation, iteration, and self-healing systems. • Build scalable, reusable backend systems to support GenAI products company-wide, with robust logging, telemetry, and evaluation harnesses to ensure reliable performance. • Shape and guide the work of other engineers on a project — setting technical direction and reviewing approach — and mentor and coach developers as an extension of that work, not a substitute for staying technically hands-on, helping others gr