Senior Full Stack Engineer, LLM Integrations

Job Description

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 quicklyWhat 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 adopts a market-based approach to compensation, where base pay varies depending on location and is further influenced by job-related skills and experience. The current expected salary range for this position is $155,000 - $175,000.

Sidecar Health is an Equal Opportunity employer committed to building a diverse team. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status or disability status.

Full-time