{"id":1261,"url":"https://alion.io/job/okx-seniorstaff-engineer-liquidity-platform-data-engineer-data-platform","title":"Senior Market & Trading Data Engineer","company":{"id":76,"name":"OKX","domain":"okx.com","url":"https://alion.io/company/okx","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":88,"open_postings":312,"ghost_share":0.112,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":84,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Data Science","role_family":"Data Science","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Hong Kong"],"countries":["HK"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":75000,"max_usd":192000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2324},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Iceberg","optional":false},{"name":"Apache Kafka","optional":false},{"name":"ClickHouse","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"LLM","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false},{"name":"gRPC","optional":true},{"name":"Polars","optional":true},{"name":"Rest API","optional":true},{"name":"Spark","optional":true},{"name":"Time Series Forecasting","optional":true},{"name":"WebSockets","optional":true}],"status":"live","first_seen_at":"2026-03-20T10:41:57Z","employer_posted_date":"2026-09-30","last_verified_at":"2026-10-18T05:54:36Z","board_verified":true,"closed_at":null,"days_open":211,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":211},"description":"Who We Are\nAt OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom.\nOKX 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.\nAcross 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.\nOKX 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.\nAbout the Opportunity\nYou will join our Data & Analytics team, which owns two core data domains end to end:\nPublic market data - trades, quotes, funding, and full order-book data continuously captured from global crypto exchanges at petabyte scale.\nProprietary trading data - orders, fills, positions, balances, and settlement activity streamed from internal desks and systems.\nWe are one team rather than separate engineering and analytics functions. The same people build pipelines, model data, validate its correctness, and answer the business questions it supports. You will see data problems through end to end: from the exchange connection or internal source through to the analysis produced from it.\nThis is an exciting time to join. We are rebuilding the platform on ClickHouse, Apache Iceberg, and Kafka while continuing to support live trading. The work combines substantial platform design with hands-on ownership of business-critical data.\nWhat You’ll Be Doing\nBuild and operate pipelines that bring market and trading data into our platform, including ingestion, parsing, normalization, validation, and storage.\nBuild and extend Python- and SQL-based datasets and data models used by trading desks, quants, research, and analytics teams.\nOwn data correctness through source reconciliation, data-quality and completeness checks, gap and duplicate detection, backfills, and replays.\nInvestigate discrepancies end to end. Trace unexpected numbers through the pipeline to the source and fix root causes rather than symptoms.\nOnboard new exchanges, venues, products, and internal data sources, addressing real-world external-feed behaviour including authentication, rate limits, disconnects, missing history, and schema changes.\nSupport data users through query support, data access, APIs, and client libraries.\nOperate what you build, including monitoring, alerting, and incident response for owned pipelines and datasets.\nContribute to the migration toward ClickHouse, Iceberg, Kafka, and Kubernetes by running new and legacy paths in parallel, reconciling results, and cutting over safely.\nUse AI coding assistants and LLM tooling to improve development, debugging, and data investigation, while applying sound judgement and independently validating outputs.\nDepending on team needs and your strengths, develop deeper expertise in either real-time platform and pipeline engineering or proprietary trading-data datasets and analysis. Both are core to the team.\nWhat We Look For In You\nBachelor’s degree or above in Computer Science, Engineering, or a related quantitative field.\n3-5 years of hands-on experience in data engineering, software engineering, or analytics engineering.\nStrong production-quality programming skills in Java, Python, or both.\nSound data-modelling judgement. You can design schemas that scale with evolving data and use cases, including keys, granularity, partitioning, and schema evolution.\nAbility to reason about query behaviour and performance over large datasets.\nDemonstrated production ownership. You have designed, delivered, and operated a pipeline, service, or dataset that other teams depend on, including its reliability, monitoring, and failure modes.\nRigour in data correctness. You validate outputs before they reach users, cross-check against independent sources where possible, and treat silent data errors as serious defects.\nStructured problem-solving under uncertainty. You can decompose ambiguous data discrepancies, form and test hypotheses, and reach defensible conclusions while clearly stating assumptions and outstanding verification needs.\nStrong initiative and persistence. You identify gaps, act without waiting for direction, work through difficult problems, and get up to speed quickly on unfamiliar systems and domains.\nStrong communication skills in both Chinese and English.\nNice to Have\nExperience in crypto, market data, trading systems, or trading operations.\nStrong Java systems-engineering capability, including JVM and concurrency fundamentals, profiling, performance tuning, and reliable high-throughput services.\nStrong Python data-engineering capability, including pandas, Polars, PyArrow, or Spark; experience with vectorisation, memory behaviour, and processing datasets larger than memory.\nExperience delivering tested, packaged Python tooling that other teams depend on.\nDepth in trading-data analysis, such as reconstructing positions from fills, balances from transfers, or PnL across settlement or expiry boundaries.\nExperience reconciling derived trading data against authoritative sources and resolving discrepancies between systems.\nExperience with real-time streaming pipelines, ideally Kafka, including ordering, gap detection, checkpoints, restart recovery, and replay.\nHands-on experience with time-series or analytical databases, including partitioning, retention, and query-performance tuning at scale.\nExposure to Apache Iceberg, Parquet, Spark, gRPC, Kubernetes, or cloud data infrastructure.\nExperience building connectors to external REST or WebSocket APIs.\nWorking Model\nHong Kong, onsite (in-office).\n Perks & Benefits\nCompetitive total compensation package.\nLearning and development programs and education subsidy for employees’ growth and development.\nVarious team-building programs and company events.\nWellness and meal allowances.\nComprehensive healthcare schemes for employees and dependents.\nMore that we would love to tell you about during the process.\nPlease note that Hong Kong is a group-level service hub, and OKXdoes not carry on a business of operating a virtual asset trading platform in Hong Kong.\nNotice:\nAll official OKXvacancies 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.\nInformation 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.","description_format":"text","description_chars":6905,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[{"language":"Chinese","level":"Advanced (C1)","optional":false}]},"benefits":["Company events"],"hiring_locations":[{"name":"Hong Kong","iso":"HK","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Cryptocurrencies","Crypto Exchanges","Crypto Wallets"],"lifecycle":[{"event":"open","at":"2026-03-20T10:41:57Z"}],"visa":[],"liveness":{"score":15,"band":"cold","label":"Long shot","p_open":1,"p_active":0.528,"p_room":0.28,"age_days":210,"expected_fill_days":84,"reasons":["conf:1","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/okx-seniorstaff-engineer-liquidity-platform-data-engineer-data-platform","json_url":"https://alion.io/job/okx-seniorstaff-engineer-liquidity-platform-data-engineer-data-platform.json","meta":{"generated_at":"2026-10-18T07:55:05Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":11819,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":76},"rest":"https://alion.io/mcp/rest/get_company?id=76"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fokx-seniorstaff-engineer-liquidity-platform-data-engineer-data-platform"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fokx-seniorstaff-engineer-liquidity-platform-data-engineer-data-platform"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fokx-seniorstaff-engineer-liquidity-platform-data-engineer-data-platform"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/okx-seniorstaff-engineer-liquidity-platform-data-engineer-data-platform\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fokx-seniorstaff-engineer-liquidity-platform-data-engineer-data-platform"}]}