Senior/Staff Backend Engineer
Close · CRM
seniorRemote
Salary Range (USD)
Negotiable
Location
USA
Visa Support
Not mentioned
Funding Stage
bootstrapped
Job Responsibilities
- • Build paved‑road patterns for other engineers across the Python/Flask API layer (REST + GraphQL, auth, permissions, migrations)
- • Develop the Flask→FastAPI migration path and production observability standards
- • Contribute to the AI dev platform (DevDawg) and the agent layer (Spice) with a focus on safety and PR automation
- • Define and maintain backend platform standards and tooling for the engineering organization
Required Skills
deep Python expertiseexperience shipping LLM/agentic features to real usersstrong API design instinctsobservability and monitoring expertise
Engineering Culture & Tech Stack
PythonFlaskFastAPITaskTigerRustTypeScriptKafkaRedisMongoDBPostgreSQLElasticsearchDockerKubernetesAWS
influence over platform direction
building for other engineers
remote‑first environment
fast‑paced product development
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Remote (US) Close (https://close.com) | Senior/Staff Backend Engineer, Backend Platform | Full-time
We're bootstrapped, profitable, and 130 people, all remote, building an AI-powered CRM. We're spinning up a new Backend Platforms team and you'd be one of the first hires — unusual influence over what it owns.
You'd build for other engineers: the paved-road patterns under our Python/Flask API layer (REST + GraphQL, auth, permissions, migrations), the Flask→FastAPI path, production observability standards, and our AI dev platform — DevDawg (cloud dev environments for the whole stack) and Spice (our agent layer that already auto-approves simple PRs). Making Spice safe across more of our review surface is the team's biggest project.
Stack: Python, Flask, FastAPI, GraphQL, TaskTiger, Rust, TypeScript, Kafka, Redis, MongoDB, PostgreSQL, Elasticsearch, Docker, Kubernetes, AWS.
Looking for: deep Python, shipped LLM/agentic work to real users, daily coding-agent use with a real POV, strong observability and API design instincts.
Also: ~5 weeks PTO + winter break, optional 4-day week at 80% pay, 1-month sabbatical every 5 years, 99% of medical premiums covered, 401k match to 6%.
Our code: https://github.com/closeio (TaskTiger, SocketShark, ciso8601)
Eng blog: https://making.close.com
Apply: https://jobs.ashbyhq.com/close/5bf4629b-d2ee-4129-980f-e31b9...
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