Data Scientist

Hayfin Capital Management
London
We are seeking a technically strong Data Scientist to join our Portfolio Performance Analytics team. You will play a key role in developing and applying quantitative models that enhance decision-making across Hayfin's investment strategies. The initial focus will be on Private Credit , where you will support portfolio management, risk assessment, and performance optimization. Over time, there will be opportunities to extend your work across Liquid Credit and Private Equity Fund of Funds strategies.

Key Responsibilities

1. Quantitative Model Development
  • Design and implement machine learning and statistical models for portfolio analytics, risk evaluation, and alpha generation.
  • Develop robust Python-based pipelines with clear documentation and test coverage.
  • Work cross-functionally with investment, finance, risk, and technology teams to deploy solutions.
2. Data Management & Analysis
  • Analyse large, complex datasets using SQL and Python to support investment research and operational insights.
  • Integrate internal, market, and alternative data sources into modelling frameworks.
  • Conduct exploratory analysis to inform investment decisions and identify signals.
3. Machine Learning & Statistical Techniques
  • Apply supervised and unsupervised learning using frameworks such as JAX (preferred), TensorFlow, or PyTorch.
  • Leverage scientific computing libraries (NumPy, Pandas) and visualization tools (matplotlib/seaborn).
  • Optimize performance with vectorized operations or JIT compilation where appropriate.
4. Financial and Domain Expertise
  • Develop models and tools tailored to private credit investment strategies , including direct lending, special opportunity portfolios.
  • Collaborate closely with the Investment and Risk team to evaluate portfolio exposures, stress scenarios, and downside risk.
  • Support financial analysis across various strategies, including analysis of instruments, financial statements, and risk metrics in the future.
5. Model Delivery & Monitoring
  • Maintain a high-quality model development process including version control (Git), documentation (Sphinx), and testing (pytest).
  • Monitor model performance over time and suggest iterative improvements.
  • Collaborate via workflow tools like JIRA to ensure agile delivery and coordination.
Requirements

Technical Skills
  • Python: Strong programming experience with data science libraries such as NumPy, Pandas, matplotlib/seaborn.
  • SQL: Comfortable querying large datasets and integrating results into Python workflows.
  • Testing & Documentation: Familiarity with tools like pytest and Sphinx.
  • Machine Learning: Hands-on experience with ML frameworks ( preferably JAX , or TensorFlow/PyTorch) and core ML concepts.
Education
  • Bachelor's or master's degree in a quantitative field: Computer Science, Applied Mathematics, Engineering, Physics, or similar.
Preferred Qualifications
  • Experience with numerical modelling in a financial or research environment.
  • Exposure to portfolio modelling or analytics in Private Credit.
  • Knowledge of fixed income instruments, credit risk, or portfolio construction principles.
  • Familiarity with Git, JIRA, and collaborative development practices.
  • CFA Level I or equivalent is a plus.
Posted 2025-08-24

Recommended Jobs

Product Lead - Personal Current Accounts

Starling Bank
London

Hello, we’re Starling. We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way. We’re a fully licensed U…

View Details
Posted 2025-08-01

Band 6 Locum Dietitian - London

Pulse
London

Band 6 Locum Dietitian – London Position: Band 6 Locum Dietitian – London Banding: 6 Start Date: ASAP Hours: Full-Time Duration: Ongoing Rate: £25:00 – £28.00 P/H Job Description…

View Details
Posted 2025-07-31

Interim Internal Audit Manager

Harrison Holgate
London

A leading London city-based insurance company is recruiting for an Internal Manager for a 12-month fixed term contract. As an Internal Audit Manager, you will oversee the end-to-end process for each…

View Details
Posted 2025-07-25

Account Executive, Healthcare

Microsoft
London

As part of Microsoft’s Healthcare Enterprise Account Team, you’ll work alongside passionate professionals dedicated to empowering NHS organisations in England. You’ll help them use Microsoft’s cloud a…

View Details
Posted 2025-08-17

Support Barista,

Bartlett Mitchell
London

We’re a multi award-winning contract catering company, with a team of trained foodies serving over 45,500 satisfied customers every day. We now have an exciting opportunity for a support barista to j…

View Details
Posted 2025-08-20

Estate Agent

Connells Group
Sanderstead, Greater London

Estate Agent At Barnard Marcus , part of the Connells Group, we’re looking for a highly motivated Estate Agent to join our team as a Sales Negotiator to complement our fantastic residential …

View Details
Posted 2025-08-08

Personal Tax Manager (hybrid)

Buckley Consulting
London

Personal Tax Manager London (hybrid working) To £65,000 + Benefits This very successful independent firm continues to be extremely busy and consequently, the portfolios of the existing members …

View Details
Posted 2025-07-25

Operations Associate (£29- £32k + bonus)

Practi
London

Who is Practi? Practi is building the FinTech for UK Healthcare . At a time when the healthcare landscape in the UK is changing rapidly, we're building solutions for both healthcare professionals…

View Details
Posted 2025-08-08

Representations Officer LBS-008

Southwark Council
Southwark, Greater London

Job Category : Environmental Services Location : 160 Tooley Street, Southwark Council Hours Per Week : 36.00 Start Date : Immediate Start Start Time : 08:45 End Time : 17:00 Salary: : …

View Details
Posted 2025-08-13

Python/Go Developer

LinuxRecruit
London

This organisation only hire the very best of the best, without fail. So, if you want to work with a relatively established company who still boast a start-up mentality, working alongside the best eng…

View Details
Posted 2025-07-09