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Re:Build Manufacturing Logo

Principal Full Stack Engineer - AI Product

Re:Build Manufacturing

$185,000 - $230,000
Nov 20, 2025
Boston, MA, US
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Transform the $2T engineering services industry by building an AI-powered platform to supercharge engineering firms' talents and build products in hard technology spaces

Requirements

  • 7+ years building production software, with 4+ years of full-stack development
  • Demonstrated proficiency using AI coding tools (Cursor, Copilot, Claude, etc.) to accelerate development
  • Expert-level expertise with React and modern JavaScript/TypeScript
  • Production experience with React Native for web and mobile applications
  • Hands-on experience with GCP services (Compute, Storage, Databases) and deploying containerized applications
  • Track record of shipping high-quality code at scale (10K+ users)
  • Strong understanding of system design, API architecture, and database design

Responsibilities

  • Building production-grade React Native applications for web and mobile
  • Architecting and implementing cloud-native services on GCP (Cloud Run, Cloud SQL, Pub/Sub)
  • Developing agentic AI workflows using LangGraph, LangChain, or similar frameworks
  • Integrating LLM APIs (Claude, GPT-4, etc.) with proper error handling, streaming, and cost optimization
  • Building data pipelines for AI/ML workflows including RAG, vector search, and fine-tuning
  • Writing well-tested, maintainable code and participating in code reviews to establish engineering best practices
  • Contributing to technical architecture and system design discussions with customers to validate and refine features

Other

  • US citizenship or lawful permanent residence due to exposure to export controlled information
  • Full health/dental/vision, bonus program, generous 401K, paid time off, annual learning stipend
  • Remote-first work arrangement with preference for candidates in Boston, Seattle, Los Angeles, or other cities with Re:Build offices
  • Bachelor's, Master's, or Ph.D. degree (not explicitly mentioned but implied)
  • Ability to work in a fast-paced environment and adapt to changing priorities