Mortgage Desk Quant

The Opportunity

Mesirow is an independent, employee-owned financial services firm founded in 1937. Headquartered in Chicago with offices around the world, we serve clients through a personal, custom approach to reaching financial goals and acting as a force for social good. With capabilities spanning Private Capital & Currency, Capital Markets & Investment Banking, and Advisory Services, we invest in what matters: our clients, our communities, and our culture. Our employee-owned culture is built on collaboration and shared success, empowering professionals to develop meaningful relationships, pursue growth opportunities, and make a lasting impact for clients and communities. Mesirow has been named one of the Best Places to Work in Chicago by Crain’s Chicago Business multiple times and is one of Barron’s Top 100 RIA firms.

We are seeking a technically skilled and market-focused Mortgage Desk Quant to join our Fixed Income team in New York City. You will work closely with traders and sales to develop analytics, build tools, and enhance trading strategies across mortgage-backed securities (MBS) and rates products. This is an on-site role for candidates with strong programming skills and 1–2 years of experience in fixed income who want to contribute directly to the front office.

Responsibilities

• Build and maintain tools for pre-trade analytics, risk monitoring, and P&L reporting using Python, SQL, and VBA.
• Partner with traders and sales to analyze MBS pools, TBA spreads, and interest rate strategies.
• Automate data workflows and improve infrastructure across trading, market data, and analytics.
• Support pricing, hedging, and relative value models for mortgage and rate products.
• Conduct research and backtesting to validate and improve trading strategies.
• Utilize Bloomberg, Yield Book, or other analytics platforms for market and trade analysis.

Requirements

• 1–2 years of professional experience in fixed income markets, ideally in a trading, quant, or desk analyst role.
• Bachelor’s or Master’s degree in Computer Science, Mathematics, Physics, Chemistry, Engineering, or another STEM field.
• Proficiency in Python, SQL, and VBA.
• Understanding of fixed income products, including bond pricing and interest rate mechanics.
• Strong communication skills and the ability to work closely with traders and sales.
• Familiarity with AI tools.
• Willingness and ability to work on-site 4–5 days/week in Midtown Manhattan (near Grand Central).

Preferred

• Experience with mortgage-backed securities (MBS), including prepayment modeling and TBA pricing.
• Familiarity with Bloomberg, Yield Book, Intex, or similar platforms.
• Prior exposure to front-office or trading desk environments.

Compensation

In accordance with New York City’s Pay Transparency Law, the anticipated hiring base salary for the role will be between $80,000 and $150,000 per year. However, base pay if hired will be determined on an individualized basis and is only part of the total compensation package, which also provides the opportunity for a commission and discretionary performance bonus and the Mesirow benefit program.