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cryptodatadefitech
About this role
Join Polymarket as a Senior Data Engineer to scale our data platform, driving analytics and data serving layers for a fast-growing prediction market platform.
Description
About Polymarket
Polymarket is the world's largest prediction market platform. We enable individuals to express views on real-world events by trading on outcomes across politics, economics, sports, culture, and current affairs. Built as a peer-to-peer marketplace with no centralized "house," Polymarket aggregates diverse opinions into transparent, market-based probabilities that reflect collective expectations about the future. We're growing fast — both in terms of volume ($21B traded in 2025) and adoption as an alternative news source. Our ambition is to become a ubiquitous beacon of truth in global media and we need your help adding fuel to the fire.Responsibilities
What You'll Do
- Own the OLAP analytics layer. Drive our columnar warehouse environment end-to-end: raw event ingestion → cleaned facts and dimensions → business aggregates → API-serving views. You'll own materialized view design, refresh cadences, dictionary catalog, query planning, and cost optimization.
- Partner on the OLTP serving layer. Work closely with the team on high-write serving tables that back our product APIs – partition strategy, indexing, trigger pipelines, autovacuum tuning, and bloat monitoring – with sub-100ms read-path discipline.
- Shape streaming and data lake infrastructure. Define Kafka topic schema contracts, evolve the S3 lake layout with modern table formats, and contribute to parity-validation tooling that guards data correctness under migration pressure.
- Design data models at scale. Work with event-sourced, append-mostly data with chain-reorg semantics. Design the derivative analytics – PnL, realized/unrealized position tracking, cohort metrics – and formalize ownership boundaries between upstream ingestion and downstream analytics.
- Coordinate across teams. Negotiate schema contracts with the warehouse-owning team and downstream consumers including frontend, notifications, and third-party integrators.
Requirements
What We're Looking For
- 5+ years of data engineering on production systems serving real users at scale
- Deep knowledge of OLTP/OLAP split architectures: you know when a row store wins, when a column store wins, and when to use both
- Columnar warehouse expertise: ClickHouse strongly preferred; Snowflake, BigQuery, Redshift, or Apache Pinot accepted if fundamentals are solid
- Data lake experience: Parquet, Iceberg (or Delta/Hudi), compaction strategies, S3 layout discipline
- Streaming pipeline experience: Kafka, exactly-once vs. at-least-once reasoning, backpressure, consumer-group patterns, schema evolution
- Strong data modeling fundamentals: star/snowflake, SCD patterns, CDC, idempotent event sourcing, dimensional vs. event-log tradeoffs
- PostgreSQL at scale: partitioning, index design, autovacuum/bloat remediation, query planning, CDC triggers vs. logical replication
- SQL fluency at warehouse scale: window functions, CTEs, dictionary-based enrichment, dialect specifics
- Distributed systems reasoning: consistency models, event ordering, replay semantics, write-once vs. mutable state, reorg handling
- (Plus) EVM indexing experience: rindexer, subgraphs, or comparable – this shortens ramp considerably
- (Plus) Rust: you'll touch indexer and validation tooling codebases; comfortable reading and contributing
- (Plus) Domain knowledge in DeFi, prediction markets, or order-book systems
- (Plus) Observability and SLO thinking: Prometheus metrics design, dashboard discipline, alert-fatigue avoidance
- (Plus) Python for SQL tooling, ad-hoc analysis, and one-off migrations
- (Plus) Track record shipping a platform migration or greenfield data stack under a hard deadline
Conditions & Benefits
Benefits
- Competitive salary & equity
- Unlimited PTO
- Full Health, Vision, & Dental coverage
- 401k match
- Hardware setup: new MacBook Pro, big display, & accessories
Job Details
Market range (est.)$120k–$245k
LocationRemote
AI Score★★★★★★★☆☆☆ 7/10
PostedApr 29, 2026 (113d ago)
Tags & Skills
cryptodatadefitechweb3Data Engineerremote
Tech Stack
OLAPOLTPClickHouseSnowflakeBigQueryRedshiftApache PinotParquetIcebergKafkaPostgreSQLSQLPython