Quantitative Engineer

Challenger; Sydney; Hybrid; AUD 180,000 - 240,000; Full time

Benefits offered by this job

Discretionary bonus scheme

Eighteen weeks paid parental leave

Flexible parental leave timing

Challenger Day – extra day off each vг

Job summary

Challenger Limited in Sydney is seeking a Quantitative Engineer who blends software development with quantitative modelling in financial markets. The role focuses on modernising pricing, valuation and risk platforms using C#/.NET.

You will translate complex mathematical concepts into robust production code, build core libraries, and collaborate with analysts and developers to deliver scalable solutions in a hybrid work environment.

Qualifications

• Degree in Computer Science, Mathematics, Engineering, Actuarial Studies, Physics or another quantitative discipline.
• 5+ years of professional software development experience.
• Strong ownership mentality with a track record of delivering production systems.
• Understanding of financial markets, particularly fixed income, interest rates and/or derivatives.
• Exposure to pricing, valuation, risk, modelling or quantitative systems.
• Experience working with AI-assisted development tools and modern software engineering practices.

Responsibilities

• Collaborate with analysts, actuaries and developers to design and enhance investment, pricing and risk systems.
• Develop and maintain quantitative pricing, valuation and risk functionality using C#/.NET.
• Implement financial models and business logic across fixed income, interest rates, FX, derivatives, annuities and reinsurance.
• Translate spreadsheet-based and prototype models into robust, maintainable production code.
• Build and maintain core quantitative libraries, market data components and valuation infrastructure.
• Develop tools that support actuarial modelling, ALM strategies, risk analytics and investment decision-making.
• Investigate and resolve issues in production calculations and modelling systems.
• Contribute to testing, model validation, peer reviews and continuous improvement of engineering practices.
• Explore the use of AI-assisted development, agentic tooling and automation to improve development productivity, model quality and user experience.

Skills

C#/.NET development

Production software

Object-oriented design

Unit testing

Git version control

SQL databases

Education

Degree in Computer Science or related quantitative field

Tools

Azure DevOps

REST APIs

CI/CD

Python

Snowflake

JavaScript/TypeScript

Job description

Challenger Limited is an ASX-listed investment management firm managing $120 billion in assets (as at 30 June 2026). Life with us is fast moving and always exciting. Together we’re driving to deliver our vision to provide our customers with financial security for a better retirement.

We achieve this goal by providing a work environment where people from diverse backgrounds, with a range of skills and experiences can contribute and succeed.

Quantitative Engineer | Sydney

We’re looking for someone who enjoys working at the intersection of software engineering, quantitative modelling and financial markets.

This role would suit a strong C#/.NET developer with experience building financial systems and a practical understanding of pricing, valuation and risk concepts. You may come from a banking, capital markets, treasury, risk technology or quantitative development background.

You do not need to be an expert in every asset class or actuarial discipline. What matters most is your ability to understand quantitative requirements, collaborate with subject matter experts, and translate complex financial concepts into robust, maintainable production software.

We’re particularly interested in people who are curious, pragmatic and excited by the opportunity to modernise quantitative platforms using modern engineering practices and AI-assisted development tools.

What You’ll Be Doing

• Collaborate with analysts, actuaries and developers to design and enhance investment, pricing and risk systems.
• Develop and maintain quantitative pricing, valuation and risk functionality using C#/.NET.
• Implement financial models and business logic across fixed income, interest rates, FX, derivatives, annuities and reinsurance.
• Translate spreadsheet-based and prototype models into robust, maintainable production code.
• Build and maintain core quantitative libraries, market data components and valuation infrastructure.
• Develop tools that support actuarial modelling, ALM strategies, risk analytics and investment decision-making.
• Investigate and resolve issues in production calculations and modelling systems.
• Contribute to testing, model validation, peer reviews and continuous improvement of engineering practices.
• Explore the use of AI-assisted development, agentic tooling and automation to improve development productivity, model quality and user experience.

Your Background Includes

• Degree in Computer Science, Mathematics, Engineering, Actuarial Studies, Physics or another quantitative discipline.
• 5+ years of professional software development experience.
• Strong ownership mentality with a track record of delivering production systems.
• Understanding of financial markets, particularly fixed income, interest rates and/or derivatives.
• Exposure to pricing, valuation, risk, modelling or quantitative systems.
• Experience working with AI-assisted development tools and modern software engineering practices.

Technical Skills Required

Essential

• Strong C#/.NET development experience.
• Experience building and supporting production software systems.
• Solid understanding of object-oriented design and software engineering principles.
• Unit testing and source control (Git).
• SQL and relational database development.
• Strong analytical and problem-solving skills.

Highly Regarded

• Fixed income, interest rate or derivatives pricing knowledge.
• Experience with quantitative libraries, market data, valuation engines or risk systems.
• REST APIs and service-based architectures.
• Azure DevOps and CI/CD practices.
• Python and/or JavaScript/TypeScript.
• Snowflake or cloud-based data platforms.

Nice to Have

• Actuarial modelling, annuities, reinsurance or insurance risk experience.
• Asset-liability management (ALM) knowledge.
• C++ exposure within quantitative or pricing environments.

Additional Information

At Challenger, we support your growth and development, offering flexibility and a culture that values your unique contributions. You’ll be part of a supportive team that encourages learning, innovation, and making a real impact.

Working at Challenger means being part of a diverse, connected team that has fun and loves what they do. We’re small enough, but big enough to accelerate bold ideas, realising what’s possible for our customers and partners.

At Challenger, we provide access to a range of exclusive employee benefits that will support you both personally and professionally and a hybrid work environment including.

• Discretionary bonus scheme.
• Eighteen weeks paid leave for all new parents.
• Flexibility on when, and how, parental leave is taken.
• Challenger Day – one extra day off every year in recognition of the effort our people make.
• Additional support leave (fertility treatment leave, gender affirmation leave).
• Extra superannuation contributions.
• Employee share plan.

Visit our benefits page for more information –

https://www.challenger.com.au/about-us/careers/our-benefits

Challenger’s employee value proposition guides how we work: Grow and realise your potential, supporting each other, stronger together and making things happen. Our culture encourages curiosity, considered thinking and meaningful contribution, with opportunities to build a broad and rewarding career.

We are committed to fostering a safe, inclusive and respectful workplace where people of all backgrounds, identities and ways of thinking can thrive, and promoting flexible working to support work-life balance.

Challenger is proud to be a Workplace Gender Equality Agency (WGEA) Employer of Choice for Gender Equality, a Family Friendly Workplace and recognised as a Bronze Employer in the Australian Workplace Equality Index (AWEI), the national benchmark for LGBTQ+ workplace inclusion.

Job type

Permanent

Posting Close Date

30/10/2026