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PolymarketPolymarketNew York, NY

Senior Quantitative Developer

Build and operate real-time data pipelines for market events with high reliability and low latency. Requires 5+ years building production data infrastructure, Python proficiency, and experience with Kafka/Flink/Kinesis on AWS or GCP.

Salary not listed
On-site5+ YOEData Engineering

About the role

What You'll Do

  • Build and maintain real-time data pipelines that ingest market events across our platform with high reliability and low latency
  • Investigate and resolve root causes of data gaps, delivery delays, and schema breaks before they compound into larger incidents
  • Ship incremental improvements to ingestion and delivery infrastructure on a continuous basis — not just when something breaks
  • Monitor pipeline health, define meaningful alerts, and reduce the operational overhead of keeping systems running
  • Partner with analysts and engineers to understand how data is consumed downstream and improve the quality and shape of what gets delivered
  • Document systems clearly enough that any engineer on the team can context-switch into your systems without friction

What We're Looking For

  • 5+ years of experience building and operating production data pipelines with real throughput and real consequences when they fail
  • Strong proficiency in Python or a similar language for pipeline development, data transformation, and tooling
  • Hands-on experience with stream processing systems such as Kafka, Flink, or Kinesis in a production environment
  • Track record of debugging hard data reliability issues — schema drift, late-arriving events, ordering anomalies — and getting to root cause without a lot of hand-holding
  • Comfort operating in resource-constrained environments where you own the full lifecycle of what you build, from design through ongoing maintenance
  • Experience working with cloud data infrastructure, particularly on AWS or GCP, including storage, compute, and orchestration tooling
  • (Plus) Experience in financial markets, crypto infrastructure, or other latency-sensitive trading environments
  • (Plus) Familiarity with blockchain event indexing or on-chain data ingestion
  • (Plus) Experience building or maintaining data contracts and schema registries across multiple producers and consumers

Benefits

  • Competitive salary & equity
  • Unlimited PTO
  • Full Health, Vision, & Dental coverage
  • 401k match
  • Hardware setup: new MacBook Pro, big display, & accessories

Skills

PythonKafkaFlinkKinesisAWSGCPData PipelinesStream ProcessingSchema ManagementData Reliability
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