Senior Staff Algorithm Engineer, Recommendation

OKX
Hong Kong, Singapore
Workplace: OnsiteFull timeFunction: Solutions Engineering & Sales EngineeringExperience: 8+ yearsEducation: mastersSkills: ["Communication","Problem-solving","Leadership"]

Lead the technical direction of OKX's next-generation social feed recommendation system, evolving it from content-centric to a unified recommendation engine that surfaces content and platform features for tens of millions of users and drives trading conversions. Own end-to-end recommendation pipelines, cross-domain intent representations, and a roadmap from Transformer-based ranking to generative recommendation, within a large distributed system.

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FursaFursa
OKX
OKX
5 months ago

Senior Staff Algorithm Engineer, Recommendation

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Source: Company careers pageValidated by: Fursa AI
Last checked: 13 hours agoStatus: Live

Job Summary

Lead the technical direction of OKX's next-generation social feed recommendation system, evolving it from content-centric to a unified recommendation engine that surfaces content and platform features for tens of millions of users and drives trading conversions. Own end-to-end recommendation pipelines, cross-domain intent representations, and a roadmap from Transformer-based ranking to generative recommendation, within a large distributed system.
Location: Hong Kong, Singapore
Workplace: Onsite
Employment Type: Full time
Job Function: Solutions Engineering & Sales Engineering
Seniority: Sr. Manager level

Key Responsibilities

  • •Elevate the Ranking System — Drive continuous ranking model iteration with measurable impact on user retention and trading conversion
  • •Unify User Understanding — Build a cross-domain intent framework spanning content consumption, feature usage, and search, shifting the system from “what users clicked” to “what users are trying to do”
  • •Define the Technical Roadmap — Chart and execute a 12–24 month evolution from Transformer-based ranking toward generative recommendation (sequence generation + preference alignment)
  • •Pioneer the Agent Paradigm — Integrate recommendation and search capabilities into an LLM Agent framework, enabling proactive intent fulfillment rather than passive content delivery
  • •Own end-to-end recommendation pipelines at scale (10M+ DAU) and drive real-time feature engineering and model serving

Pay and Benefits

Perks:Learning BudgetWellness StipendMeal AllowanceHealth Insurance

Key Requirements

  • •Master's degree or above in CS / Math from a top university; 8+ years of experience with 5+ years in core recommendation / search roles; track record of owning end-to-end recommendation pipelines at 10M+ DAU scale
  • •Experience designing unified intent representations across heterogeneous domains (content / feature / search); ability to fuse real-time behavioral signals with long-term stable preferences; hands-on experience with tiered user profile systems (cold-start → interest exploration → stable preference)
  • •Deep understanding of Attention mechanisms in sequential behavior modeling and their limitations (DIN / SIM / HSTU evolution); proficiency in ListMLE / Softmax Loss and joint multi-candidate ranking
  • •Expert-level knowledge of MMoE / PLE / ESMM and gradient conflict identification and mitigation; ability to design composite loss function frameworks and bridge offline metrics with online KPIs
  • •Understanding of Semantic Tokenization (FSQ / RQ-VAE) and conditional sequence generation; working-level knowledge of RLHF / DPO applied to recommendation systems
Experience:8+ yearsCryptocurrencyFintechCryptoExchange
Education:Master's
Skills:CommunicationProblem-solvingLeadership
Languages:English
Tech Stack:TransformerRankingLLMFlinkKafkaListMLESoftmax LossRLHFDPOReActGene­rative Recommendation

Company Brief

OKX
Global cryptocurrency exchange and Web3 technology provider offering spot and derivatives trading, custody, wallet services, and blockchain infrastructure to retail and institutional users worldwide.
Industry: Trading Platforms
Company Size: Enterprise (1,001+ employees)
Growth: Established Company
Headquarters: Victoria, Seychelles
Founded: 2017
WebsiteLinkedIn