Principal Engineer, Agent Infrastructure & Memory Architecture

Principal Engineer, Agent Infrastructure & Memory Architecture

San Jose, California, United States

At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual’s freedom. OKX is a leading crypto exchange and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves.

Across our multiple offices globally, we are united by our core principles:
We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er.

We are seeking an AI Infrastructure Engineer to design and build the foundational systems that power next‑generation AI agents. This role sits at the intersection of research and production engineering, focusing on scalable long‑term memory
, knowledge graph infrastructure
, and robust context management systems
.

You will transform cutting‑edge research concepts (e.g., Context Graphs, GraphRAG, agent memory architectures) into auditable, maintainable, and production‑grade infrastructure that enables reliable, stateful AI systems.

Architect and implement long‑term memory infrastructure for AI agents, including auditable, versioned, and rollback‑capable middleware that supports persistent, stateful reasoning.

• Design and own end‑to‑end GraphRAG and knowledge graph pipelines, from ingestion and schema design to graph indexing, retrieval optimization, and integration with LLM‑based reasoning systems.
• Build scalable context management infrastructure, elevating context from prompt‑level techniques to structured, maintainable systems such as Context Graphs that enable long‑horizon and cross‑session reasoning.
• Translate advanced agent research into production‑grade systems, prototyping emerging architectures and establishing best practices for memory, retrieval, and infrastructure reliability.
• Ensure reliability, observability, and governance of agent infrastructure, including traceable memory operations, evaluation frameworks, and safeguards against drift and degradation.

• PhD or Master’s in Computer Science, AI, Machine Learning, Robotics, or related field with at least 10 years of industry experience
  .
• Deep expertise in at least one of the following areas:
  long‑term memory
  , knowledge graphs
  , or context management
  .

Experience in top‑tier AI labs or technology industry leaders.

Experience in high‑frequency trading, fintech, Web3, or crypto platforms is a strong advantage.

Startups or research‑intensive environments preferred; must be comfortable operating with ambiguity and speed.

The salary range for this position is $ to $. The salary offered depends on a variety of factors, including job‑related knowledge, skills, experience, and market location. In addition to the salary, a performance bonus and long‑term incentives may be provided as part of the compensation package, as well as a full range of medical, financial, and/or other benefits, dependent on the position offered.

Applicants should apply via Okcoin and OKX internal or external careers site.

OKX is committed to equal employment opportunities regardless of race, color, genetic information, creed, religion, sex, sexual orientation, gender identity, lawful alien status, national origin, age, marital status, and non‑job related physical or mental disability, or protected veteran status. Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.