SVP, Principal Python Full Stack Engineer – Margin Calculation and System Integration

BNY Mellon • New York, NY

3d • $120,000 - $200,000 • Onsite

About The Position

BNY is seeking an experienced Full Stack Developer to develop margin systems, with a primary focus on Securities Finance businesses, including Prime Services, Repo, Securities Lending, and Wealth Solutions. The role is located in New York, NY.

The position focuses on Python-based margin calculation and collateral optimization, including dynamic margin methodologies and analytics. It also involves integrating pricing, risk, and collateral platforms; developing and maintaining web applications for margin workflows; and optimizing application performance, automation, and cloud-native deployments. The engineer will partner with Quant, Risk, and Operations teams to deliver scalable production solutions.

Requirements

• Bachelor's degree in computer science, engineering, or a related discipline, or equivalent work experience.
• 9–11 years of software development experience.
• At least 6 years of Python development experience in Capital Markets.
• Hands-on experience with Python, Pandas, NumPy, SQL, REST APIs, and Git.
• At least 3 years of experience building data-intensive web UIs using Angular and/or Next.js, including tabular margin drill-downs and configuration dashboards.
• Hands-on experience developing data pipelines across relational sources such as Oracle and Snowflake and streaming platforms such as Kafka, including real-time market data enrichment.
• Hands-on experience with low-latency REST APIs and gRPC endpoints for calculators.
• Proficiency with AI-assisted development tools such as Codex, Devin, or Claude Code for feature delivery, automated test generation, and agentic code review.
• Experience with distributed caching, such as Hazelcast.
• Good understanding of derivatives, collateral management, repo, securities financing, and margin methodologies such as SIMM and IM/VM.
• Strong quantitative programming skills.

Nice To Haves

• Experience in the securities or financial services industry.
• Exposure to cloud technologies, Docker/Kubernetes, and distributed processing.
• Experience in Prime Services, Repo, and securities lending.
• Experience in Margin and Collateral Management.
• Experience in Java.
• Experience with optimization libraries such as OR-Tools, Pyomo, CVXPY, PuLP, Gurobi, or CPLEX.
• Knowledge of regulatory margin frameworks such as Reg T, FINRA 4210, 15c3-1, and US Portfolio Margin.
• Experience with securities reference data, securities market data, and client account hierarchy.

Responsibilities

• Design and develop Python-based margin calculation and collateral optimization solutions.
• Develop dynamic margin calculation systems, including Rules-Based Dynamic Margin, Stress-Based Dynamic Margin, and VaR-based Margin methodologies.
• Extend the margin rule engine with rules for eligibility, concentration limits, and liquidity add-ons.
• Develop analytics for IM, VM, SIMM, haircuts, eligibility, concentration limits, and liquidity optimization.
• Integrate pricing, risk, and collateral platforms using APIs and distributed processing frameworks.
• Optimize application performance, automation, and cloud-native deployments.
• Build and maintain Angular and Next.js front-end applications for margin calculation workflows, including margin drill-down grids, rule and override configuration dashboards, and intraday alerting views for Margin Operations and Risk teams.
• Partner with Quant, Risk, and Operations teams to deliver scalable production solutions.

Benefits

• Competitive compensation and benefits, including wellbeing programs.
• Flexible global resources and tools.
• Paid leaves, including paid volunteer time; vacation and sick time may be available depending on the position offered.
• Eligibility to enroll in a 401(k) plan.
• Company-sponsored medical, dental, vision, and basic life insurance plans for eligible employees and dependents.
• Eligible employees may participate in an annual discretionary incentive award.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior