Full Stack Software Developer Contract Jobs in Ontario

Join a world-class investment firm at the intersection of finance and technology

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.

Our Software Development team includes world-class developers with cutting-edge technical and numerical expertise. The Software Development teams work together to create, innovate, and improve a wide range of world-class software, with opportunities to collaborate with our global Portfolio Management and Investment Platform teams to build highly customized solutions in a rapidly evolving environment.

We are looking for a passionate and dynamic Senior Full-Stack Software Developer based in Toronto, who will play a role in the future of business innovation through in-house-built solutions. The individual will have the opportunity to gain meaningful exposure to the industry, allowing for a deeper understanding of how hedge funds function and evolve. Equipping the individual with insights to help contribute to innovative in-house solutions.

What will you do?

• Design, build, and enhance our industry-leading platforms - you will work with a team of experienced Developers and Quantitative analysts on our next generation Trading & P&L platforms, and critical operational infrastructure that are used by internal teams: Trading, Risk, Compliance, Business Development, Operations, and Finance.
• Focus on treasury, trading & new product onboarding -
  you'll have the opportunity to support business growth by facilitating new product onboarding and enhancing system scalability and flexibility. Our software's data and calculations provide the foundation for our portfolio managers to generate profits and run their business.
• Collaborate with your peers - you will have the opportunity to work alongside Portfolio Managers and Investment Teams to improve Trading & Operational software. You will be involved in several new greenfield initiatives within the firm and engage closely with colleagues and internal stakeholders, incorporating continuous feedback to refine solutions. Additionally, you will benefit from coaching, mentorship, and professional development offered by Senior Developers and others in the organization.
  

Who are you?

• You are passionate about coding and problem solving - you have hands on experience with C#, .NET, C++, Java, or any other object-oriented language. You have a good understanding of design patterns and modern user interface paradigms (MVC, MVVM), and experience with parallel and asynchronous programming. You have full-stack experience, having developed a variety of front-ends and backends. Experience building powerful/rich applications that run on desktops are preferred (e.g. WPF or Blazor) as well as using a messaging bus like RabbitMQ or Kafka.
• You seek further understanding -
  you strive to grasp the fundamental principles and trade-offs behind tools, systems, and frameworks, enabling you to make informed architectural decisions.
• You are driven to be a top developer - you have strong technical skills and foster a collaborative approach with your team. You demonstrate intellectual curiosity and are committed to your ongoing growth and improvement as a developer.

• You are interested in finance- You are eager to learn about the financial industry through your professional experience, colleagues, and industry experts. Prior financial experience and product knowledge are helpful but not required.
• You are an excellent communicator - You effectively engage with stakeholders of diverse technical backgrounds to scope, test, and implement projects. Capable of articulating complex concepts clearly, facilitating smooth collaboration and successful project outcomes.

Why work with us?

• 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.

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.

-

This posting is for a position that will become vacant on or around May 2026. The expected start date for this position is on or around April 2026.

-

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.

-

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.

-

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.