Job Description

About the Role

Polar Asset Management Partners is an alternative asset manager established in 1991 and headquartered in Toronto. With teams in Canada, US, and the UK, managing strategies across equities, credit, commodities, rates and niche strategies we are committed to generating strong risk-adjusted returns.

The Quantitative Development team at Polar is seeking an exceptional Senior Software Developer to build a state-of-the-art multi-asset investment platform. You’ll design, develop, and maintain critical investment infrastructure and core components for Portfolio Managers, Risk Managers, and the Office of the CIO. You will partner closely with world-class quants and developers to deliver real-time trade analytics and portfolio management systems that the investment team can trust. We value people who thrive in fast-paced environments, communicate clearly, and take full ownership.

Responsibilities

• Design, develop, and maintain scalable, high‑performance systems in C#/.NET for real-time pricing, analytics, and portfolio/risk workflows.
• Own projects end‑to‑end and partner with PMs, Quant Research, Data, and Risk to clarify requirements, produce technical designs, and deliver production software.
• Drive adoption of modern engineering practices and contribute to platform standards (APIs, messaging, data models, testing, deployment, code quality).
• Mentor and unblock teammates; contribute to design reviews and code reviews.
• Improve platform reliability through proactive issue detection, observability, performance tuning, and robust failure handling.
• Participate in a support/on-call rotation, ensuring platform stability and timely responses to user requests.

Qualifications

• 8+ years of professional software development experience in C# and the .NET ecosystem.
• Strong experience in architecting and developing distributed, real-time systems using messaging technologies.
• Strong knowledge of T-SQL and practical experience with data modelling.
• Capital market experience in Rates, Credit, Equity, or Commodities.
• Demonstrated track record of delivering high-quality, reliable software in fast-paced environments.
• Exceptional communication, analytical, and problem-solving skills.

Desirable Skills

• Experience building responsive front ends in React or Angular
• Python experience, including integrating .NET APIs with Python.
• Experience developing Excel-based tooling for financial analytics.
• Exposure to observability/monitoring solutions (e.g. Grafana, Prometheus, OpenTelemetry).
• Hands-on experience with CI/CD systems (e.g. TeamCity, GitHub Actions, Azure DevOps).
• Hands-on experience with containerization and task orchestration technologies (e.g. Nomad and Kubernetes).

What We Offer

• We believe in developing, mentoring, and training our people You’ll join a passionate, high-performing team committed to growing talent from within. We provide exceptional on-the-job learning experiences, encouraging you to challenge yourself for both professional and personal growth. Our priority is to foster a positive work culture that promotes growth, inclusion, and continuous learning. Our developers can work across all stacks (Data/Backend Services/UI) of our software products and throughout the business. With technology leaders who are receptive to ideas for improving the tech stack and the development process.
• We give you the tools you need to succeed – a powerful PC, AI tools and a collaborative environment.
• We provide a competitive compensation and comprehensive benefits package – Our compensation package includes a combination of competitive base salary, bonus, and 20 days’ vacation, comprehensive health/vision/dental benefit package, monthly fitness allowance, and more. We provide a charitable matching program, numerous team-building events, and a work environment that allows you to do your best work.
• At Polar, we strive to attract, develop, and retain an inclusive workforce that embraces different backgrounds, experience, and ideas.

Work Setup: 4 days/week in office

Compensation Polar’s total compensation package includes base salary, discretionary performance bonus, and a comprehensive benefits package. In accordance with Ontario’s Employment Standards Act, 2000, the estimated base salary range for this position is $130,000 to $160,000. The actual base salary pay will depend on several factors, including, but not limited to, the individual’s experience level, the qualifications they bring to the role, business needs, and market demands.

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This posting represents an existing vacancy within our organization.

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This recruitment process may use artificial intelligence tools to help review resumes, identify potential matches, and summarize interviews. All hiring decisions are made by our recruitment team and/or hiring manager.

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We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.

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Polar Asset Management Partners Inc. does not accept unsolicited candidate resumes or profiles from external sources such as recruitment firms, headhunters, or employment placement agencies with whom we do not have a contractual relationship. Any candidate information or resume received, directly or indirectly, from a headhunter, agency or recruiter with whom we do not have a contractual relationship will be disregarded, and, under no circumstance, will we pay any referral, placement, or other fee for the supply of such unsolicited resumes or information.