Job Description

Head of Quantitative

B2B Financial Services Technology | Global Scale | Sydney (Hybrid)

• Greenfield opportunity to define a global quantitative capability

• Direct influence on product strategy and international expansion

• Work with sophisticated institutional clients at scale

A high-growth B2B financial services technology company is appointing a Head of Quantitative in a newly created role to build and lead its next-generation modelling capability.

Operating at the intersection of wealth management, actuarial science and enterprise software, this business partners with tier-one financial institutions across Australia, the UK and Europe to modernise how financial advice is delivered at scale.

This is a rare opportunity to architect stochastic modelling frameworks from first principles, while building and leading a world-class quantitative function with global reach.

The opportunity

The business is at a pivotal inflection point and is poised for continued market traction.

Having successfully deployed deterministic advice models at institutional scale, the next phase of growth requires the introduction of sophisticated stochastic modelling to unlock new markets, new products and materially improved customer outcomes.

As Head of Quantitative, you will:

• Define the quantitative strategy

• Lead the technical uplift to stochastic modelling

• Build and scale a high-performing team

• Act as the ultimate authority on model risk, integrity and regulatory alignment

This is a genuine player–coach role, with significant hands-on technical ownership.

What you’ll be responsible for

• Architect and deliver stochastic modelling frameworks (Monte Carlo, scenario generation, multi-goal optimisation)

• Lead the transition from deterministic Excel-based models to scalable calculation engines

• Translate complex regulatory and advice policy requirements into robust quantitative logic

• Build, mentor and scale a quantitative team across Australia and global markets

• Partner closely with Product and Engineering to productionise models at scale

• Engage directly with tier-one institutional clients, actuarial teams and regulators

• Own quantitative governance, validation and model risk standards globally

What it will take to make an impact

• Deep expertise in stochastic / actuarial / quantitative modelling

• Strong hands-on background in tools such as Excel, Python or actuarial modelling platforms

• Experience operating in regulated financial services environments (wealth, retirement, insurance or advice technology)

• Proven ability to lead technical teams while remaining hands-on

• Confidence engaging with C-level stakeholders, institutional clients and regulators

• Comfort operating in ambiguity within a high-growth, product-led business

• Advanced qualifications in Actuarial Science, Mathematics, Statistics or a related quantitative field are highly regarded.

If you’re motivated by complex problems, real-world impact and global scale, this is a rare leadership opportunity.  Call Michelle Rubinstein at The Onset on 0413 463 043 for a confidential discussion or apply online.