Data Engineer, Alternative Data | Delta One Trading | Experienced Hire
Susquehanna International Group2 days ago
Base Salary
$225k - $250k/yr
Responsibilities
- Own onboarding of vendor and alternative datasets from sample evaluation through ingestion pipelines and production monitoring.
- Build point-in-time-correct datasets that preserve delivered history and handle vendor revisions, restatements, and backfills.
- Design entity-mapping and reference datasets connecting vendor identifiers to tradable instruments.
- Apply LLMs and agentic tooling to extract structure from documents, filings, transcripts, and data dictionaries and automate data-quality workflows.
- Run data-quality and vendor-evaluation studies covering coverage, revision behavior, and panel stability.
- Create research-ready datasets for large-scale historical analysis and backtesting.
- Improve shared ingestion platforms and tooling to accelerate future dataset onboarding.
Requirements
- 5+ years of experience building Python data applications and pipelines over large historical datasets.
- Experience ingesting and normalizing third-party or vendor data at scale through S3, SFTP, cloud data shares, or APIs.
- Strong SQL skills and familiarity with Parquet, Arrow, DuckDB or similar tools, and NumPy, Pandas, or Polars.
- Strong understanding of data modeling, data accuracy, reproducible research workflows, and preferably temporal or versioned data modeling.
- Demonstrated experience operating production data pipelines, including monitoring, alerting, backfills, restatement handling, and incident forensics.
- Ability to collaborate with researchers and scientists to turn ambiguous ideas into robust datasets and scalable workflows.
- Experience applying LLMs to extraction, classification, entity resolution, or data-quality checking is a plus.
- Experience with AWS S3 or Snowflake and prior C++ experience are pluses.
- Quantitative-finance or electronic-trading experience is a plus but not required.
- An advanced degree in Computer Science, Mathematics, Physics, Computer Engineering, or a related field is a plus.
Benefits
- Annual base pay range of $225,000-$250,000, plus discretionary bonus and benefits.
- Collaborative daily work with data engineers, researchers, and traders in a systematic trading environment.
- Direct impact on datasets, research, signals, and production trading strategies.
- Opportunities for continuous learning, innovation, and professional growth.
About Susquehanna International Group
Susquehanna International Group (SIG) is a privately held quantitative trading firm and global market maker that uses proprietary technology and research to trade equities, options, ETFs, fixed income, and other derivatives. It earns revenue from proprietary trading and providing market liquidity, and also operates institutional sales & research and venture capital/private equity businesses. Founded in 1987 and headquartered in Bala Cynwyd, Pennsylvania, SIG has offices across North America, Europe, and Asia.