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Principal Engineer, Agent Infrastructure & Memory Architecture

OKX

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What infrastructure roles keep asking for: AWS (29%), System design (22%), Kubernetes (21%), Python (21%), Observability (19%), Terraform (15%), CI/CD (13%), Linux (12%) — counted across their open postings here.

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Preparing for this interview

Interviews for infrastructure roles keep coming back to AWS, System design, Kubernetes, Python. Practise those questions before you sit with OKX.

Questions you are likely to be asked

  1. Why do you want to join OKX?
  2. What is your experience with LLMs? Tell me one thing you learned the hard way.
  3. How would you cut the cloud bill of a system without hurting it?
  4. How do you keep secrets and access safe in your infrastructure?
  5. Walk me through how code gets from a commit to production where you work.

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OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa.

Who We Are

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. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.

About the Opportunity

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.

 

What You’ll Be Doing 

  • 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.

What We Look For In You 

  • PhD or Master's in Computer Science, AI, Machine Learning, Robotics or related field with at least 10 years of industry experience.

  • Possess a deep expertise in at least one of the following areas: long-term memory, knowledge graphs, or context management.

Nice to Haves

  • Experience in top-tier AI labs or Tech 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

Perks & Benefits

 

Notice:
All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website.
Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX's Candidate Privacy Notice.

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Listed on greenhouse · posted 2026-03-02. ApplySarthi collects openings and links to application pages; the role is advertised by OKX, not by us.