Date Posted: 10/23/2026
Hiring Organization: Rose International
Position Number: 509739
Industry: Financial Services
Job Title: Senior Spark Engineer
Job Location: Jersey City, NJ, USA, 07310
Work Model: Hybrid
Work Model Details: Hybrid Model- 3 Days onsite/ 2 days remote
Shift: Standard Working hours
Employment Type: Temp to Hire
FT/PT: Full-Time
Estimated Duration (In months): 7
Min Hourly Rate($): 90.00
Max Hourly Rate($): 100.00
Must Have Skills/Attributes: Apache, API, Java, Python, Spark, Spark SQL, SQL
Experience Desired:
Expert-level, hands-on experience with Apache Spark, including deep knowledge of its internal architecture. (6+ yrs),
Strong programming skills in Java and/or Python, and expert-level SQL. (8+ yrs)
Required Minimum Education: Bachelor’s Degree
**C2C is not available**
Job Description
Required Education
•A degree in a quantitative or technical field such as Computer Science, Financial Mathematics, or Financial Engineering.
Required Qualifications/Skills/Experience
•10+ years of professional experience in hands-on, large-scale data engineering, with a significant portion within the Capital Markets or Risk technology space.
•Expert-level, hands-on experience with Apache Spark, including deep knowledge of its internal architecture, performance tuning, shuffle optimization, and partitioning strategies.
•Deep domain knowledge of risk aggregation methodologies for VaR, CCAR, Stress Testing, and FRTB is essential.
•Strong programming skills in Java and/or Python, and expert-level SQL.
•Experience designing and building semantic layers or data models that bridge the gap between complex physical data and business intelligence/AI applications.
•A knack for solving complex data reconciliation and performance problems at scale.
•You are a rare blend of a deep computer scientist and a savvy financial engineer, with a passion for solving problems from first principles.
Preferred Qualifications/Skills/Experience
•Proven experience with high-performance OLAP databases such as Apache Pinot or Apache Druid.
•An obsession with performance metrics, from CPU cycles and memory footprints to network I/O.
Overview
Are you a computer scientist who loves finance? Do you want to solve high-complexity algorithmic challenges on one of the world's largest financial datasets? This isn't about maintaining legacy systems; it's a green-field opportunity to build a brand-new, best-in-class aggregation engine from first principles, using the most modern tools available. Client is seeking an expert Lead Engineer for Big Data Risk Aggregation to own the core platform that transforms raw calculation output into final, reportable risk numbers. You will be responsible for building and running the industrial-scale data pipelines that sit at the heart of our risk reporting and analytics capabilities.
As the Lead Engineer for Big Data Risk Aggregation, you are the master of large-scale data transformation. You will take the immense output from our pricing and calculation engines—billions of P&L vectors across thousands of scenarios—and apply the complex aggregation logic required for our most important risk measures. Your primary mission is to build a platform that is not only incredibly fast and scalable but also robust, auditable, and intelligent. The code you write and the algorithms you design will directly influence multi-billion-dollar capital decisions and be reported to global regulators. You will lead a team of expert data engineers, setting the standard for big data processing and delivering the results that drive strategic capital and risk management decisions.
Job Duties
•Architect and build a high-performance, metadata-driven aggregation platform using Apache Spark.
•Design and implement novel algorithms to reduce the computational complexity of high-dimensional risk aggregations.
•Design and build a rich semantic layer over the aggregated data, creating a business-friendly data model that can power both traditional BI and next-generation AI-driven queries.
•Solve deep computer science challenges within Spark, choosing the right underlying mechanisms, designing optimal data partitioning strategies, and minimizing network shuffling to ensure extreme performance.
•Build a self-service platform that empowers quants and risk managers to define new aggregations without writing new code.
•Pioneer innovative ways of making data available to users by building high-performance APIs for UIs, and providing curated datasets for Python Notebooks that enable deep forensic analysis and calculation replication.
•Load the final, aggregated risk metrics into high-performance OLAP stores (Apache Pinot, Apache Druid) to serve the analytics and UI layers.
- **Only those lawfully authorized to work in the designated country associated with the position will be considered.**
- **Please note that all Position start dates and duration are estimates and may be reduced or lengthened based upon a client’s business needs and requirements.**
Benefits:
For information and details on employment benefits offered with this position, please visit here. Should you have any questions/concerns, please contact our HR Department via our secure website.
California Pay Equity:
For information and details on pay equity laws in California, please visit the State of California Department of Industrial Relations' website here.
Rose International is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, sexual orientation, gender (expression or identity), national origin, arrest and conviction records, disability, veteran status or any other characteristic protected by law. Positions located in San Francisco and Los Angeles, California will be administered in accordance with their respective Fair Chance Ordinances.
If you need assistance in completing this application, or during any phase of the application, interview, hiring, or employment process, whether due to a disability or otherwise, please contact our HR Department.
Rose International has an official agreement (ID #132522), effective June 30, 2008, with the U.S. Department of Homeland Security, U.S. Citizenship and Immigration Services, Employment Verification Program (E-Verify). (Posting required by OCGA 13/10-91.).
Working for Rose International was the most pleasant assignment I have ever had. They were always on top of situations when necessary, and very helpful. I was very proud to be an employee of Rose International, and would recommend anyone to try to work with them.
Melvon, Consultant
I am very happy with the Rose International, and the professionalism of the employees.
Robin, Consultant
The interactions that I have had with your representatives have always been prompt and very professional. I am very pleased and impressed with your company and services.
Sioe, Consultant
Rose is an assembly of people grounded in honesty, truth and dignity for all of its employees and contractors.
Samba, Consultant
It was great working for Rose International. Everyone was extremely helpful.
Rosann, Consultant
EMPLOYEE COMMENTS