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Network Security Engineer



Toronto, ON, Canada
Posted on Tuesday, June 11, 2024


Onex is an investor and asset manager that invests capital on behalf of Onex shareholders and clients across the globe. Formed in 1984, we have a long track record of creating value for our clients and shareholders. Onex’ two primary businesses are Private Equity and Credit.In Private Equity, we raise funds from third-party investors, or limited partners, and invest them, along with Onex’ own investing capital, through the funds of our private equity platforms, Onex Partners and ONCAP. Similarly, in Credit, we raise and invest capital across several private credit, public credit and public equity strategies. Our investors include a broad range of global clients, including public and private pension plans, sovereign wealth funds, insurance companies, family offices and high net-worth individuals. In total, Onex has $50.9 billion in assets under management, of which $8.4 billion is Onex’ own investing capital. With offices in Toronto, New York, New Jersey, Boston and London, Onex and its experienced management teams are collectively the largest investors across Onex’ platforms.


Based in our Toronto offices, this is an exciting opportunity to lead the IT security team at Onex. Reporting to the Director, Infrastructure and Service Delivery, you will manage the overall day-to-day security operations at Onex and its businesses. This includes investigations, remediations, improvements, policies, application/cloud applications, alerting, reporting, and metrics


  • Design, implement, and maintain secure network architectures in Azure, utilizing hub-and-spoke topology to connect on-premises and cloud environments.
  • Configure and manage Azure Firewall to protect against unauthorized access and threats, ensuring compliance with security policies and regulations.
  • Collaborate with cross-functional teams to develop and implement security policies, procedures, and best practices.
  • Monitor network traffic and security alerts to identify and mitigate potential security threats.
  • Provide technical support and guidance to internal teams on network security issues and solutions.
  • Stay well informed and current on security trends/threats; assess their potential impact on the organization.
  • Resolve problems independently and understand escalation procedure. Coordinate escalations and collaborate with internal technology teams to ensure timely resolution of issues.
  • Ensure that system maintenance is being performed and we are maintaining current documentation.
  • Monitor and analyze network traffic and security alerts in Azure, identifying and mitigating potential security threats and vulnerabilities.
  • Stay current with emerging technologies and industry trends in Azure networking and network security to continuously enhance our security posture.


  • Degree in Information Technology, Information Security/Assurance, Engineering or related field of study; or at least eight years of prior relevant experience.
  • Proven experience as a Network Security Engineer or similar role, with a focus on Azure networking technologies.
  • Strong proficiency in Palo Alto, Juniper, and Cisco devices, with the ability to design, deploy, and troubleshoot complex network infrastructures.
  • Extensive experience with Azure VPN and ExpressRoute, including configuration, troubleshooting, and optimization.
  • Strong proficiency in designing and implementing hub-and-spoke network architectures in Azure.
  • Good working knowledge of vulnerability remediation practices.
  • Experience with network security protocols, firewall technologies, VPNs, and intrusion detection/prevention systems.
  • Excellent analytical and problem-solving skills, with the ability to identify and resolve complex network security issues.
  • Industry certifications such as CISSP, CCNA, CCNP, Azure Security Engineer Associate, or equivalent.
  • Solid understanding of network protocols, firewall technologies, VPNs, and intrusion detection/prevention systems.

Our team & Commitment:

Onex is led by our CEO, Bobby Le Blanc, as well as experienced leaders at each of our businesses. We have over 170 investment professionals across all platforms, supported by approximately 265 professionals dedicated to our corporate functions and investment platforms, including our institutional and high net worth relationship professionals. Consistent with our One Onex approach, the teams share and leverage sector expertise, and sourcing and origination opportunities across all business lines.

Our culture is guided by our strong commitment to accountability, intellectual honesty and respect for all our partners and stakeholders. Onex was formed on principles of entrepreneurialism and responsible investing and our team is united in recognizing the value of collaboration, diversity of perspective and background, and an inclusive environment. Our team is a critical factor in our success, and attracting and retaining the best people and strongest investors are an important competitive advantage.

Also crucial to our long-term success is the alignment of interests between the Onex management team, shareholders and clients. Members of our management team have a significant long-term ownership in Onex shares and invest meaningfully in our funds. We believe this alignment creates stronger relationships with both clients and shareholders.

Diversity Equity & Inclusion:

Onex recognizes that a diverse team and inclusive environment are vital in contributing to our continued success as an investor and asset manager. We believe that diverse perspectives create better outcomes for us and our stakeholders, including the companies we invest in, our shareholders, investors and clients, as well as the communities we serve.

Onex’ commitment to diversity and inclusion includes increasing our focus on attracting and retaining employees from diverse backgrounds, creating additional awareness of diversity issues and benefits, fostering and inspiring a more supportive environment where inclusivity is expected and prioritized, and embedding accountability for diversity throughout the firm.

Onex’ Diversity & Inclusion Leadership Council, which is co-chaired by our President and our Head of Shareholder Relations and Communications, includes representation from across all business platforms and geographies. The Council is responsible for championing diversity and inclusion across the firm, including supporting the development and success of Onex’ employee resource groups.

Environmental, Social & Governance:

As a public company, we are committed to delivering value for all of our stakeholders – our shareholders, investors, employees, operating companies and the communities in which we operate. Responsible governance throughout Onex and across our platforms is fundamental to the success of our organization. We hold ourselves to the highest standards of good governance, which builds trust and confidence in our stewardship of capital.

Consistent with our long-held belief that responsible investing is both the right approach to investing, as well as a driver of meaningful stakeholder value, we continue to make enhancements to our environmental, social and governance (“ESG”) program. Recent initiatives include the addition of resources to our ESG team and progress on our efforts to measure carbon emissions across Onex and our investment platforms. To remain aligned with emerging best practices, we participate in several industry initiatives, including the ESG Data Convergence Initiative, Initiative Climat International (“iCI”), the Principles for Responsible Investment (“PRI”), the IFRS Sustainability Alliance and FCLT Global, among others. We expect our program to continue to expand in line with this rapidly evolving area, while remaining rooted in our founding principle of responsible investing.