Senior Full Stack Engineer, LLM Integrations

Sidecar Health is redefining health insurance. Our mission is to make excellent healthcare affordable and attainable for everyone. We know that to accomplish this lofty mission, we need driven people who will make things happen. The passionate people who make up Sidecar Health's team come from all over, with backgrounds as tech leaders, policy makers, healthcare professionals, and beyond. And they all have one thing in common—the desire to fix a broken system and make it more personalized, affordable, and transparent. If you want to use your talents to transform healthcare in the United States, come join us! About the Role We're looking for a Senior Full Stack Engineer with strong JavaScript/TypeScript expertise and experience integrating AI-powered tools to build modern, intelligent applications. You'll work across the stack using Next.js and AWS Serverless technologies to create user-facing features and backend services that leverage large language models and vector databases. This role is ideal for engineers who enjoy building end-to-end applications, experimenting with generative tech, and owning systems from prototype to production. What You'll Do Build scalable, full-stack applications using Next.js, TypeScript, and AWS Serverless (Lambda, API Gateway, DynamoDB, etc.) Integrate with LLM APIs and implement embeddings using vector databases Develop AI-powered product features using RAG architecture, function calling, and conversation memory Design and optimize prompt engineering for reliability and safety Collaborate closely with product and design to prototype and ship impactful solutions quickly What You'll Bring 5+ years of software development experience, with deep knowledge of JavaScript/TypeScript Experience with AWS Serverless development (e.g., Lambda, DynamoDB, SQS) Experience integrating LLM/AI APIs (e.g., OpenAI, Anthropic, etc.) Experience with Next.js Understanding of key AI concepts, including: Temperature tuning Embeddings and vector search Retrieval-Augmented Generation (RAG) Conversation memory management Function calling and chaining Prompt engineering techniques Experience building and deploying full-stack applications Nice to have: Prior experience working on AI/LLM-integrated products Familiarity with tools like Pinecone, Weaviate, or LangChain Knowledge of CI/CD pipelines and infrastructure-as-code What You'll Get Competitive salary, bonus opportunity, and equity package Comprehensive Medical, Dental, and Vision benefits A 401k retirement plan Paid vacation and company holidays Opportunity to make an impact at a rapidly growing mission-driven company transforming healthcare in the U.S.

Sidecar Health is redefining health insurance. Our mission is to make excellent healthcare affordable and attainable for everyone. We know that to accomplish this lofty mission, we need driven people who will make things happen. The passionate people who make up Sidecar Health's team come from all over, with backgrounds as tech leaders, policy makers, healthcare professionals, and beyond. And they all have one thing in common—the desire to fix a broken system and make it more personalized, affordable, and transparent.