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Perseus Group, Constellation Software

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Perseus Group, a division of Constellation Software Inc., specializes in acquiring and nurturing vertical market software businesses, fostering autonomy and long-term growth.

Markham, ON

Software Development
1,001–5,000 people

About

“While other purchasers of business seek economies of scale through centralization, we have taken the opposite approach. We believe that potential is maximized when teams are allowed to remain small. This enables the General Manager of the business to be empowered and remain in control of all levers necessary to guide their business.” -Mark Leonard, Founder, Constellation Software Inc. -- Perseus Group is a global acquirer of vertical market software businesses and one of six operating groups within Constellation Software Inc. (TSX: CSU). Since 1995, our M&A experts have completed over 1,000 acquisitions. Driven by our buy-and-hold investment philosophy, we exclusively acquire software businesses that we intend to own and grow indefinitely. Today, Perseus has become an international organization of passionate Founders, operational experts, and collaborators. We are proud to be the home of dozens of industry-leading brands across multiple vertical markets.

Open positions

Senior Systems Administrator – M365 & Infrastructure

On-site · Markham

The Senior Systems Administrator will manage the Microsoft 365 environment, including identity and access management, endpoint security, and collaboration platforms. They will also oversee infrastructure modernization and ensure secure, scalable technology services across the organization.

Software Developer (Technical Support)

Remote · Canada

Act as the first line of technical defense for production issues by triaging, diagnosing, and resolving problems within a payments platform. Collaborate with engineering teams to identify systemic bugs and contribute to long-term code and configuration fixes.

WordPress Web Developer - Contract

Remote · United States

The developer will be responsible for the ongoing maintenance, security, and optimization of the primary WordPress website, including executing cosmetic and structural changes while protecting the existing codebase integrity. This involves regularly evaluating plugins, applying patches, and supporting a multilingual setup with proper SEO structure.