Senior/Staff Backend Engineer, Backend Platform at Remote (US) Close ( https://close.com )
Core
Building foundational backend platform patterns, observability standards, and AI agent infrastructure (Spice) for a Python/Flask-based AI CRM.
Role type
Senior/Staff Backend Engineer (Platform)
Builds
Python/Flask API layer, Flask→FastAPI migration, production observability standards, and AI dev platform (DevDawg, Spice)
Domain
SaaS CRM, AI/LLM, Backend Infrastructure
Deliverable
production ML models | product features | infrastructure
Required skills
deep Python, LLM/agentic work experience, daily coding-agent usage, strong observability instincts, API design
Preferred skills
Rust, TypeScript, Kafka, Redis, MongoDB, PostgreSQL, Elasticsearch, Docker, Kubernetes, AWS
Technologies
Python, Flask, FastAPI, GraphQL, TaskTiger, Rust, TypeScript, Kafka, Redis, MongoDB, PostgreSQL, Elasticsearch, Docker, Kubernetes, AWS
Responsibilities
Design and build paved-road patterns for the Python/Flask API layer (REST + GraphQL, auth, permissions, migrations)
Seniority
Senior/Staff, hands-on IC
