Senior Quantitative Developer

About the role

The Senior Quantitative Developer will join the team that runs the data infrastructure powering Polymarket's platform. This includes real-time pipelines, clean market data, and reliable delivery across all systems dependent on it.

Responsibilities

• Build and maintain real-time data pipelines that ingest market events across the 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
• Maintain 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

Requirements

• 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

Qualifications

• Experience in financial markets, crypto infrastructure, or other latency-sensitive trading environments
• Familiarity with blockchain event indexing or on-chain data ingestion

Skills

• 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
• Experience in financial markets, crypto infrastructure, or other latency-sensitive trading environments
• Familiarity with blockchain event indexing or on-chain data ingestion

Benefits

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