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Re:Build Manufacturing · 3 days ago

Principal Full Stack Engineer - AI Product

United States

Full-time

Remote

Senior Level, Lead/Staff

$185K/yr - $230K/yr

7+ years exp

Re:Build Manufacturing is building an AI-powered platform to transform the engineering services industry. They are seeking a Principal Full Stack Engineer to develop core product features and infrastructure, focusing on high-quality code and architectural decisions.

IndustrialIndustrial AutomationIndustrial ManufacturingMachinery ManufacturingManufacturing

No H1B

U.S. Citizen Only

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

Qualification

Full-stack developmentReact NativeGCP servicesAI coding toolsLLM API integrationAgentic AI frameworksSystem designB2B SaaS experienceDevOps best practicesMLOps best practicesCollaboration skills

Required

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

Ability to balance rapid iteration with maintainable, well-tested code

Preferred

Production experience integrating LLM APIs (OpenAI, Anthropic, etc.)

Experience building agentic AI systems using LangChain, LangGraph, or similar frameworks

Work with vector databases (Pinecone, Weaviate, Chroma) and RAG architectures

Background in B2B SaaS platforms or workflow automation tools

Understanding of engineering, manufacturing, or technical collaboration workflows

Experience with DevOps and MLOps best practices

Benefits

Full health/dental/vision

Bonus program

Generous 401K

Paid time off

Annual learning stipend

Participation in Re:Build's LTIP equity program

Opportunity for founder equity in potential spin-out

Company

Re:Build Manufacturing

Re:Build Manufacturing is a family of industrial businesses combining cutting-edge enabling technologies, operational superiority and strategic M&A to build America’s next generation industrial company.

Founded in 2020

Framingham, Massachusetts, USA

1001-5000 employees