Barcelona, Spain Remote (Global) Full-time

BHFT is hiring a Market Data Engineer (Domain Trading Expertise Required)

Responsibilities

  • Manage the complete data ingestion workflow from network capture to data lake storage, transforming raw exchange protocols and third-party feeds into a standardized format with precise timing.
  • Develop and maintain batch and streaming data pipelines using Airflow, Spark, and dbt for processing tick-level and reference datasets.
  • Reconstruct Level 2 and Level 3 order books, ensuring accurate handling of gaps and sequence inconsistencies in market data streams.
  • Design and maintain software development kits in Python and Rust for internal systems to consume real-time market data feeds.
  • Oversee the Iceberg-based data lake on S3, optimizing file layout, partitioning, and sorting for high-performance queries.
  • Ensure schema evolution, snapshot management, time travel, compaction, and retention policies are properly implemented and maintained.
  • Maintain slowly changing dimensions for reference data, guaranteeing historical accuracy for backtesting and audit purposes.
  • Implement cost-efficiency strategies including intelligent compaction, storage tiering, and lifecycle management of data snapshots.
  • Build tooling for schema governance, data contracts, validation frameworks, and lineage tracking within the Iceberg catalog system.
  • Develop shared data access services using Spark and Polars to enable consistent, normalized data consumption across research, trading, and simulation workflows.
  • Implement monitoring, alerting, service-level objectives, and continuous integration pipelines across data capture and processing infrastructure running on Kubernetes.
  • Own operational excellence through data quality dashboards, incident response playbooks, and reliability documentation for the data ingestion fleet.

Responsibilities (12)

  • Own the full capture path from wire to lake: decode and normalize raw exchange feeds (pcap, multicast UDP / ITCH / FIX) and vendor sources (OneTick, Refinitiv, Bloomberg, ICE) into a unified canonical model with nanosecond timestamps.
  • Build batch + stream pipelines (Airflow, Spark, dbt) for tick and reference data.
  • Own L2/L3 order-book reconstruction with gap handling.
  • Provide Python and Rust producer SDKs for internal feed handlers.
  • Own the Iceberg-over-S3 lakehouse: design partitioning, sort orders, and row-group layout for fast scans; manage schema evolution, snapshots, time travel, compaction, and TTL.
  • Maintain reference data as slowly-changing tables with point-in-time correctness for backtests.
  • Drive storage cost optimisation via compaction, tiering, and snapshot expiry.
  • Build libraries for schema management, data contracts, validation, and lineage on top of the Iceberg catalog.
  • Develop shared access services (Spark + Polars) so Research, backtesting, and trading share one normalized data layer, including gap detection and pcap-vs-lake reconciliation.
  • Embed monitoring, alerting, SLAs/SLOs, and CI/CD across capture and pipeline layers on Kubernetes (EKS).
  • Own data-quality dashboards and incident runbooks for the capture fleet.
  • Partner with Quant Research, Data Science, Backend, and DevOps to translate requirements into platform capabilities and champion market-data engineering best practices.
About company
BHFT
BHFT is a proprietary algorithmic trading firm that manages the full trading cycle, from software development to creating and coding strategies and algorithms. The firm trades across a broad range of asset classes using both HFT and MFT approaches.
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Job Details
Department Data Engineering
Category Data & ML
Posted 2 months ago