Senior Data Engineer - Next-Gen Data Platform

Group One Trading; Chicago (IL); On-site; USD 175,000 - 225,000; Full time

Benefits offered by this job

401(k) + Roth 401(k)

Medical, dental, vision

Job summary

Group One Trading is seeking a Senior Data Engineer to design and operate a next-generation data platform that powers trading analysis and decision-making. You will work closely with traders, risk, finance, and technology to translate data needs into reliable systems.

You will help migrate workloads to modern architectures using cloud data warehouses and lakehouses, implement CI/CD, data quality controls, and observability, and contribute to architectural decisions that scale with the firm.

Qualifications

• Significant professional experience building and operating production data platforms, ideally in financial services or another environment where data accuracy has direct business consequences
• Deep hands-on experience with modern data architectures, including cloud data warehouses or lakehouses, orchestration, transformation frameworks, and streaming or event-driven ingestion
• Expert-level SQL and strong proficiency in Python or another language used to build production data pipelines and tooling
• Strong data modeling skills across analytical and operational use cases, including dimensional modeling and modern alternatives
• Experience building reliable production data systems with automated testing, observability, data quality controls, CI/CD, and infrastructure-as-code
• Working familiarity with the Microsoft data stack-including MSSQL, SSIS, SSAS, SSRS, and Power BI-sufficient to understand and migrate existing workloads
• Ability to contribute meaningfully to architectural decisions, identify trade-offs, and turn agreed-upon designs into production systems
• Sound judgment around implementation choices, migration sequencing, reliability, and production change risk
• Strong communication skills and the ability to work directly with business users to understand how data is actually used

Responsibilities

• Build and operate the data platform powering trading analysis, reporting, and decision-making
• Collaborate with traders, risk, finance, and technology teams to understand data needs and model data systems
• Migrate workloads to a modern data environment and establish engineering standards for ingestion, orchestration, testing, observability, and data quality
• Contribute to architectural decisions and turn designs into production systems
• Maintain reliability, evolvability, and governance as data usage scales

Skills

Production data pipelines

SQL

Python

Data modeling

CI/CD

Data governance

Power BI

Analytical thinking

Communication with users

Tools

MSSQL

SSIS

SSAS

SSRS

Power BI

Job description

Group One Trading is seeking a Senior Data Engineer to design and operate a next-generation data platform that powers trading analysis and decision-making. You will work closely with traders, risk, finance, and technology to translate data needs into reliable systems.

You will help migrate workloads to modern architectures using cloud data warehouses and lakehouses, implement CI/CD, data quality controls, and observability, and contribute to architectural decisions that scale with the firm.