Build backend systems for Index Exchange’s programmatic advertising platform in Toronto or Kitchener, using strong software engineering and service design skills.
Index Exchange seeks Senior-level software engineers for product and platform teams supporting backend, frontend, and fullstack work. You will help develop systems handling hundreds of billions of daily transactions. The work includes collaborating with product, improving designs, and addressing complex technical challenges.
Key Responsibilities: Design, write, and test robust, reliable code
Develop systems supporting programmatic advertising transactions
Collaborate with product to identify improvement opportunities
Analyze and estimate work within an agile setting




Improve coding standards and engineering practices
Requirements: Strong software engineering skills
Proficiency in Golang, Java, C#, or Typescript with React
Experience designing, developing, and testing high-quality services
Excellent problem-solving and communication skills
Experience leading impactful cross-team technical projects
Apply backend engineering, service design, and practical problem-solving to Index Exchange’s high-scale advertising technology systems.

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📌 Senior Backend Software Engineer (Ontario)
🏢 Index Exchange
📍 Ontario