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Why work for us?

A career at Janus Henderson is more than a job, it’s about investing in a brighter future together .

Our Mission at Janus Henderson is to help clients define and achieve superior financial outcomes through differentiated insights, disciplined investments, and world-class service. We will do this by protecting and growing our core business, amplifying our strengths and diversifying where we have the right.

Our Values are key to driving our success, and are at the heart of everything we do:

Clients Come First - Always | Execution Supersedes Intention | Together We Win | Diversity Improves Results | Truth Builds Trust

If our mission, values, and purpose align with your own, we would love to hear from you!

Your opportunity

We are seeking an experienced quantitative professional to join our residential mortgage whole loan acquisition and portfolio management team. This role will focus on modeling, analytics, and data integration to support trading, structuring, and risk management decisions. The ideal candidate will combine deep mortgage market knowledge with strong quantitative skills to forecast borrower behavior, optimize portfolio performance, and enhance analytical infrastructure.

Key Responsibilities

Behavioral Modeling & Forecasting

+ Develop and maintain borrower performance models, including default, delinquency, and prepayment curves for pools of residential mortgage loans.

+ Create and calibrate S-curves and other behavioral models to capture sensitivity to interest rates, credit attributes, and macroeconomic factors.

+ Conduct scenario and stress testing to assess portfolio resilience under varying market conditions.

Portfolio Analytics & Structuring

+ Perform levered cash flow modeling for whole loan pools and securitization structures.

+ Evaluate relative value across loan cohorts and securitization tranches using tools such as Intex, Yield Book, and internal models.

+ Support portfolio managers in trade structuring, hedging strategies, and P&L attribution.

Data Management & Integration

+ Manage large, loan-level datasets and ensure data integrity across acquisition, surveillance, and reporting workflows.

+ Integrate data into internal systems and visualization platforms such as Snowflake, Power BI, and Tableau.

+ Collaborate with technology teams to enhance automation and scalability of analytical processes.

Risk & Performance Monitoring

+ Track portfolio performance against expectations and market benchmarks.

+ Partner with risk management to design and implement hedging programs and monitor exposure metrics (duration, convexity, spread risk).

Market & Research

+ Track all recent whole loan market activity and color.

+ Stay current on mortgage market trends, regulatory developments, and investor behavior.

+ Contribute to research initiatives on borrower behavior, housing economics, and securitization structures.

What to expect when you join our firm

+ Hybrid working and reasonable accommodations

+ Generous Holiday policies

+ Paid volunteer time to step away from your desk and into the community

+ Support to grow through professional development courses, tuition/qualification reimbursement and more

+ Maternal/paternal leave benefits and family services

+ Complimentary subscription to Headspace – the mindfulness app

+ Corporate membership to ClassPass and other health and well-being benefits

+ Unique employee events and programs including a 14er challenge

+ Complimentary beverages, snacks and all employee Happy Hours

Must have skills

+ Education: Master’s or Ph.D. in a quantitative discipline (Finance, Economics, Statistics, Mathematics, Physics, Engineering, or related field).

+ Experience: Minimum 5 years in mortgage analytics, quantitative research, or portfolio modeling within an asset manager, hedge fund, bank, or rating agency.

+ Technical Skills:

+ Proficiency in cash flow modeling and loan-level analytics.

+ Advanced knowledge of Intex, Yield Book, and other mortgage analytics platforms.

+ Strong programming skills in Python, R, or SQL for data manipulation and model development.

+ Familiarity with Snowflake, Power BI, and Tableau for data integration and visualization.

+ Domain Expertise: Deep understanding of residential mortgage products (Prime, Non-QM, Jumbo, second liens, HELOCs), borrower behavior, and securitization structures.

+ Soft Skills: Excellent communication, ability to present complex analytics to senior stakeholders, and collaborative mindset.

Supervisory responsibilities

+ No

Potential for growth

+ Mentoring

+ Leadership development programs

+ Regular training

+ Career development services

+ Continuing education courses

Compensation information

The base salary range for this position is $180,000 - $210,000. This range is estimated for this role. Actual pay may be different. This role will remain open through the end of November, 2025.

At Janus Henderson Investors we’re committed to an inclusive and supportive environment. We believe diversity improves results and we welcome applications from candidates from all backgrounds. Don’t worry if you don’t think you tick every box, we still want to hear from you! We understand everyone has different commitments and while we can’t accommodate every flexible working request we’re happy to be asked about work flexibility and our hybrid working environment. If you need any reasonable accommodations during our recruitment process, please get in touch and let us know at [email protected] .

#LI-CH2 #LI-Hybrid

Annual Bonus Opportunity: Position is eligible to receive an annual discretionary bonus award from the profit pool. The profit pool is funded based on Company profits. Individual bonuses are determined based on Company, department, team and individual performance.

Benefits: Janus Henderson is committed to offering a comprehensive total rewards package to eligible employees that includes; competitive compensation, pension/retirement plans, and various health, wellbeing and lifestyle benefits. To learn more about our offerings please visit the Why Join Us section on the career page here (https://www.janushenderson.com/careers/) .

Janus Henderson Investors is an equal opportunity / Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status.

Janus Henderson (including its subsidiaries) will not maintain existing or sponsor new industry registrations or licenses where not supported by an employee’s job functions (as determined by Janus Henderson at its sole discretion).

You should be willing to adhere to the provisions of our Investment Advisory Code of Ethics related to personal securities activities and other disclosure and certification requirements, including past political contributions and political activities. Applicants’ past political contributions or activity may impact applicants’ eligibility for this position.

You will be expected to understand the regulatory obligations of the firm, and abide by the regulated entity requirements and JHI policies applicable for your role.