Senior Fullstack Engineer (Node/Python + React)

We are looking for a Senior Fullstack Engineer to help take an early-stage AI product from MVP development to a reliable, production-ready solution. You’ll contribute to the architecture and development of the entire platform, spanning a React and TypeScript user interface, server-side applications, data processing workflows, and cloud-based systems. You'll also work with DevOps practices, and deploying LLM-powered solutions at scale will be key areas of focus.

Key Responsibilities

• Build features across the stack, including the React/TypeScript frontend, backend services and APIs, and data pipelines.
• Assess the existing codebase and help decide what to keep, adapt, or rewrite.
• Build and maintain infrastructure and CI/CD pipelines, including deployments into customer AWS and Azure environments.
• Support deployment of AI agents (such as code and document review agents) in production.
• Build and maintain telemetry pre-processing that runs inside the customer’s cloud before data leaves it, including PII filtering and compliance controls.
• Pair with the client’s engineering team, review pull requests, and raise architecture concerns early.
• Work in small, well-communicated increments toward a hardened MVP on a tight timeline.

Core Requirements

• 5+ years of professional full-stack engineering experience, with strong React and TypeScript skills.
• Strong backend experience in Node.js or Python, including relational databases and API design.
• Hands-on DevOps experience with Docker, CI/CD, and infrastructure as code (Terraform or similar).
• Production experience with AWS and/or Azure.
• Experience building or operating LLM or agent-based systems in production, such as tool use, orchestration, evals, or deployment.
• Excellent written and verbal communication skills in English.
• Ability to work independently in a remote, fast-paced environment.

Nice-to-Have

• Experience building GitHub Apps or other developer-tooling integrations.
• Experience with telemetry or data pipelines.
• Security- and privacy-minded architecture experience, especially with enterprise data handling.
• Daily use of AI coding tools such as Claude Code, Cursor, or Codex.

Additional

• US Timezone Overlap: EST
• Contract, full-time, remote.