[Hiring] Senior FullStack Developer @Lean Solutions Group

Role Description

You will build IQ Billing end to end — the financial platform treatment facilities rely on every day to manage claims, payments, and revenue. You'll own features from the data layer to the UI: React surfaces on the front, and Node.js services doing the heavy lifting on data manipulation, transformation, and management behind them.

Qualifications

• 4+ years of production full stack experience
• Strong JavaScript/TypeScript and React deep fluency in hooks, component design, and modern React patterns (hard requirement)
• Strong Node.Js, with Nest.Js or Express.Js or similar backend experience
• Solid relational database experience, especially Postgres, including writing and reasoning about non-trivial SQL
• A preference for type-safe code and clean, maintainable architecture across the stack
• Experience building with LLM APIs (Anthropic, OpenAI, or similar), including streaming responses, tool calling, and prompt iteration
• Daily use of AI coding assistants such as Claude Code, Cursor, or GitHub Copilot, with a clear point of view on when to trust them and when to override
• Comfort shipping polished UI: loading, empty, and error states all considered
• A product mindset

Requirements

• Experience with Python data tooling (pandas, Polars) and API frameworks (FastAPI, Flask, Django)
• Data pipeline / ETL experience and exposure to warehouses (Snowflake, BigQuery, Redshift)
• Experience with modern build tooling (Vite, Turbopack) and package managers (pnpm, bun)
• Familiarity with Tailwind CSS, component libraries, and design systems (shadcn, Radix)
• RAG, vector databases (pgvector, Pinecone, Weaviate), or agentic workflow experience
• Experience building or consuming MCP (Model Context Protocol) servers
• Cloud experience (AWS or GCP): serverless, containers, queues
• Exposure to observability tooling (Datadog, Sentry, OpenTelemetry)
• Knowledge of accessibility (WCAG) standards

Soft Skills

• Strong problem-solving and debugging skills
• Excellent communication and collaboration abilities
• Ability to work independently and take ownership of projects
• Leadership and mentorship mindset
• Attention to detail and commitment to high-quality user experiences