Cognee is building the
memory engine + data plane for AI agents
to plan, reason, and act. Our open-source
Python SDK is in production at 70+ companies
, hit
GitHub Trending
, and runs
550 000 times a month
. We've won early customers (top 10 Pharma etc) and just raised a large
Seed
.
We're hiring a
Principal Engineer
to
own the Cognee SDK as a product surface area
— setting technical direction, raising engineering quality, and scaling adoption.
You'll be coding in Python and Rust.
What You'll Own
SDK architecture, API design, and roadmap (Python now, future SDKs later)
Release engineering: versioning, compatibility, CI/CD, testing, benchmarks
Performance, reliability, observability, and production readiness
Developer experience: docs, examples, reference implementations
Open-source stewardship: contribution workflows, PR reviews, community support
Cross-team leadership: shaping core platform contracts through the SDK
Requirements
What we're looking for
Principal-level ownership of a high-adoption SDK / developer platform / core library
Deep Python skills (packaging, typing, testing, performance, clean APIs)
Experience with production systems
Strong taste for DX and high standards for stability and maintainability
Bonus: open-source leadership, agent/memory/retrieval systems experience
Hands-on experience with LLMs
The SDK is how the world experiences Cognee — you'll define it.
Benefits
Up to 150 000 EUR + Equity
Company sponsored meals
Trips to San Francisco
Fetch breaks with the office dog