Embedded Software Engineer on the Support team responsible for designing and shipping AI drafting tools, autonomous reply systems, workflow automation, reporting dashboards, and self-service customer tools. Requires 3+ years experience, fluency in Python, Rust, Go, or TypeScript/JavaScript, and experience with semantic search / RAG and building production-quality systems; located in US time zones (ET, CT, MT, PT).

Close is hiring a senior backend engineer for a USA-only, fully remote role. The position focuses on Python/Flask backend services, AI/LLM-backed features and agent infrastructure, working with AWS, Kubernetes, Docker, MongoDB/Postgres/Elasticsearch/Redis, CI/CD, and infrastructure automation (Terraform/Ansible). Candidates will join one of several teams (Agents, Communications, CRM, Growth) and contribute to production-facing APIs, real-time systems, and AI integrations.