Note: The job is a remote job and is open to candidates in USA. Re:Build Manufacturing is a growing family of industrial and engineering businesses focused on revitalizing US manufacturing. They are seeking a Senior Backend Engineer to build core services and AI infrastructure for an AI-powered platform in hardware product development, collaborating with engineering teams to transform unstructured inputs into structured artifacts.
Responsibilities
- Designing and implementing RESTful APIs with OpenAPI specs and auto-generated client SDKs using SQLAlchemy and Postgres
- Developing ingestion pipelines using Celery and Redis that connect to tools teams already use (file storage, messaging, email) and extract structured engineering artifacts from unstructured inputs
- Building and extending agentic AI workflows using LangChain, LangGraph, and related frameworks for structured data extraction, risk detection, dependency analysis, and proactive team coordination
- Integrating LLM APIs (Anthropic Claude, OpenRouter) with streaming (SSE), error handling, and cost optimization
- Deploying and operating services on GCP (Cloud Run, Cloud SQL, Memorystore) with Terraform
- Writing well-tested, maintainable code and participating in code reviews to establish engineering best practices
Skills
- 5+ years building production backend systems, with 3+ years in Python
- Demonstrated proficiency using AI coding tools (Cursor, Copilot, Claude, etc.) to accelerate development
- Strong experience with FastAPI or similar async Python web frameworks
- Production experience with PostgreSQL, including schema design, migrations, and query optimization
- Hands-on experience with task queues and background processing (Celery, Redis, or similar)
- Understanding of API design, authentication patterns (OIDC/JWT), and service architecture
- Experience with containerized deployments (Docker) and CI/CD pipelines
- Ability to balance rapid iteration with maintainable, well-tested code
- Have worked in early-stage 0 to 1 startup environments
- Production experience integrating LLM APIs (Anthropic, OpenAI, etc.) and building AI-powered features with agent orchestration frameworks (LangChain, LangGraph, or similar)
- Hands-on experience with GCP services (Cloud Run, Cloud SQL, Pub/Sub, Secret Manager) and Infrastructure-as-code experience with Terraform
- Experience with data ingestion pipelines and ETL workflows
- Background in B2B SaaS platforms, project management tools, or workflow automation products
- Understanding of hardware development, engineering workflows, or project management concepts (phases, gates, dependencies)
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 Overview
Re:Build Manufacturing integrates design, engineering, and manufacturing to deliver complex, multi-technology products from concept through full-rate production. It was founded in 2020, and is headquartered in Framingham, Massachusetts, USA, with a workforce of 1001-5000 employees. Its website is https://www.rebuildmanufacturing.com.