Lead Engineer

Job Title: Lead Engineer for Big Data Risk AggregationLocation: Jersey City, NJDuration: Contract - 6 months (C2H potential)Visa: USC/GC - Only on W2Karat AssessmentTwo Rounds of interview 1st Virtual 2nd In-personJob DescriptionWe are seeking a Lead Engineer, Big Data Risk Aggregation to join our dynamic team. The ideal candidate will have strong experience in large-scale data engineering, Apache Spark, and risk aggregation within Capital Markets and a proven ability to design and operate high-performance, auditable aggregation platforms that deliver reportable risk metrics.Required Skills & Qualifications:10+ years of hands-on large-scale data engineering experience, preferably in Capital Markets or Risk technology.Expert-level Apache Spark knowledge including architecture, performance tuning, shuffle optimization, and partitioning.Deep understanding of risk aggregation for VaR, CCAR, Stress Testing, and FRTB.Strong programming skills in Java and/or Python with expert-level SQL.Experience building semantic layers and data models enabling BI and AI applications.Proven delivery with high-performance OLAP databases such as Apache Pinot or Apache Druid.Degree in Computer Science, Financial Mathematics, Financial Engineering, or a related quantitative field.