ML Data Engineer (100% On-Site |Contract-to-hire)

Machine Learning Data Engineer Opportunity At Potomac, we're not for everyone—and that's by design. We attract people who think critically, communicate clearly, and execute with urgency. People who care deeply about their work and don't need handholding to make things happen. We're a boutique tactical asset manager with a differentiated product that serves the independent broker-dealer and RIA channel. Headquartered in Bethesda, MD, we combine institutional-grade investment expertise with a quantitative process that is Built to Conquer Risk ®. Summary Potomac is continuing to invest in modern data and AI capabilities to support our growing business. We are seeking a Machine Learning Data Engineer to join our team and play a critical role in building and scaling our data infrastructure. This role will focus on designing and maintaining data pipelines, enabling machine learning and analytics use cases, and ensuring high-quality, well-governed data is available across the organization. This position will work closely with Operations, Technology, Analytics, and business stakeholders to translate data needs into reliable, production-ready data solutions. Key Responsibilities Design, build, and maintain scalable data pipelines to ingest data from multiple internal and external sources (APIs, SaaS platforms, databases, files). Develop and manage a centralized data lake / lakehouse to standardize and curate data for analytics, reporting, and machine learning use cases. Implement ELT/ETL processes to clean, validate, transform, and model data into trusted datasets. Build and maintain machine-learning–ready datasets and feature pipelines that support experimentation and production models. Ensure data quality, freshness, and reliability through monitoring, alerting, and automated validation checks. Partner with analytics and business teams to define data requirements, metrics, and reporting outputs. Support downstream data consumption for BI tools, dashboards, operational reporting, and partner data exports. Apply best practices around data governance, security, access controls, and documentation. Collaborate cross-functionally to deliver scalable, maintainable data solutions aligned with business priorities. Continuously improve performance, cost efficiency, and reliability of the data platform. Qualifications Required Bachelor's degree in Computer Science, Data Engineering, Engineering, or a related field (or equivalent experience). 4+ years of experience in data engineering or related roles. Strong proficiency in Python and SQL. Hands-on experience building and operating data pipelines and workflows. Experience with modern data platforms (data lakes, data warehouses, or lakehouse architectures). Familiarity with orchestration tools (e.g., Airflow, Dagster, Prefect) and data transformation frameworks. Solid understanding of data modeling, schema design, and data quality best practices. Experience integrating data from APIs and third-party systems. Strong problem-solving skills and ability to work independently in a fast-paced environment. Excellent communication skills and ability to work with both technical and non-technical stakeholders. Preferred Experience supporting machine learning workflows (feature engineering, training datasets, or ML pipelines). Familiarity with cloud platforms (AWS, Azure, or GCP). Experience with streaming or near–real-time data pipelines. Knowledge of data governance, security, and compliance best practices. Prior experience in financial services, fintech, or regulated data environments. Experience working in a high-growth or startup environment. Potomac is not your typical asset manager. We cut through the industry BS with brutal transparency and an obsession with execution. If you're looking for a slow pace and low volume, this isn't for you. If you want to drive, build, and scale, this is your shot. Please note, we are unable to provide visa sponsorship now or in the future. This is a contract to hire position. Once hired, full time employees are offered a full suite of benefits. Potomac Inc