Portfolio Performance Manager

Onmo; City Of London; On-site; GBP 55,000 - 75,000; Full time

Job summary

A financial technology company in London is seeking a Portfolio Performance Manager to lead forecasting and performance analysis for their credit card portfolio. This role requires strong analytical skills and a deep understanding of credit card mechanics. Candidates should have experience in building scalable forecasting models and a command of tools like SQL and Python. The ideal candidate thrives in a dynamic environment and focuses on creating structured solutions.

Qualifications

• Proven experience in scalable forecasting models.
• Strong understanding of credit card mechanics.
• Analytical mindset with strong problem-solving skills.

Responsibilities

• Build and maintain robust forecasting models.
• Conduct variance analysis to identify performance drivers.
• Support incident resolution requiring expert knowledge of credit card mechanics.

Skills

Analytical mindset

Problem-solving skills

Understanding of credit card mechanics

Command of analytical tools (SQL, Python)

Tools

SQL

Python

Excel

Job description

ABOUT US

Onmo believes that everyone has the right to access, understand and manage their money with confidence. Our ambition is to improve lives by providing better clarity, intelligence and technology to empower every individual in making the smartest financial decisions. We may be young but we have an incredible team in place and big ambitions for the years ahead.

We design our products to help demystify money matters wherever possible, providing customers with more financial control and flexibility in their lives. This helps them get more from what they have, or with smart decisions, make more of the same. It also means people spend less time with the negative aspects of money and more on the positive - enjoying what the world has to offer.

ABOUT THE ROLE

We are looking for a strategic and analytically sharp Portfolio Performance Manager to lead the development of independent, data-driven outlooks and projections for our credit card portfolio. This role is central to enabling the Credit and Commercial teams to understand how actual performance compares to expectations, and to identify actionable levers to improve outcomes. You will work cross-functionally to ensure robust forecasting, insightful variance analysis, and a deep understanding of customer behaviour and credit risk dynamics.

RESPONSIBILITIES

• Independent Forecasting & Outlook Creation
  • Build and maintain robust, transparent forecasting models that simulate portfolio performance under various behavioural and economic scenarios.
  • Develop an unit economics model to assess the impact of customer behaviour changes on profitability and risk.
  • Maintain a validated return outlook model that can be used to make credit limit increase or risk based pricing decisions.
  • Integrate feedback loops from actual customer behaviour into forecasts to continuously refine projections.
  • Reduce reliance on error-prone tools (e.g. complex Excel) by implementing scalable, auditable forecasting solutions
• Performance Monitoring & Variance Analysis
  • Interrogate statement and month end data for accuracy before release to wider analytical audience
  • Create trusted comparisons of actual performance vs. plan, budget, and forecast.
  • Conduct variance analysis to identify root causes and performance drivers.
  • Present insights in a way that enables targeted investigations and interventions by credit and commercial teams.
• Strategic Analytics Support
  • Support incident resolution and deep-dive investigations requiring expert knowledge of credit card mechanics and customer risk.
  • Contribute to return hurdle setting for new and existing lending decisions.
  • Collaborate with Finance to build rolled-up portfolio outlooks during budget and planning cycles.
  • Feed long-term performance expectations into sensitivity analyses for funding trigger tracking.
  • Partner with data science teams to integrate predictive models into portfolio projections.
  • Support provision calculation optimisation by aligning risk models with observed portfolio behaviour and performance trends.
• Coaching and Knowledge Sharing
  • Work with peers on initiatives to upskill colleagues across the business.
  • Coach more junior or new members of the team in relation to technical and non-technical aspects.

FCA Compliance & Consumer Duty

At Onmo we all take collective responsibility for our individual roles in creating the best outcomes for our customers. In this role that involves:

• Highlighting likely customer impacts of strategy change modelled in unit economic and portfolio projections
• Using your in depth understanding of credit cards and impacts to identify and raise risk events timely
• Supporting impact analysis of changes and risk events
• Supporting more complex remediation actions with a focus on good customer outcomes
• Following the FCA Conduct Rules; you must act with integrity, act with due skill, care and diligence, be open and cooperative with the FCA, PRA and other regulators, pay due regard to the interests of customers and treat them fairly, observe proper standards of market conduct

ABOUT YOU

Essential Skills & Experience

• Proven experience in scalable forecasting models, including unit economics and steady state cohort return outlooks.
• Strong understanding of credit card mechanics, including payment calculations, statement generation, due dates, and arrears processes from a data perspective.
• Analytical mindset with strong problem-solving skills and attention to detail.
• Skilled in identifying and explaining performance deviations through root cause analysis and driver-based insights.
• Strong command of analytical tools and platforms (e.g., SQL or Python), with an expert understanding of Excel and potential pitfalls.
• Familiarity with IFRS9 principles and experience supporting provision optimisation through data-driven insights would be beneficial.
• Strong interpersonal skills to work effectively with Finance, Credit Risk and Commercial teams.
• Understanding of regulatory expectations, with an ability to guide analysis for risk events, supporting impact analysis, and ensuring good customer outcomes

Your Working Style

• Highly, with the ability to manage multiple tasks and priorities effectively.
• Strong communicator who can explain technical details clearly and concisely to diverse audiences.
• Collaborative and proactive, thriving in a dynamic and fast-paced environment.
• Focused on creating structured, scalable solutions that can be easily understood and maintained.
• The drive to seek out continuous improvement and resolve potential problems before they arise.