About League
League is one of the fastest-growing technology companies in Canada and the leading healthcare experience platform. Getting healthcare is often the easy part — finishing it is where things fall apart: people book the appointment and skip the follow-up, fill the prescription and stop taking it, get the referral and never make the call. That gap costs health plans and health systems money, and it costs people their health. League closes that gap — identifying what each person needs to do next, clearing what’s in their way, and getting it done, for the 70 million+ people whose care already runs through our platform. Health plans and health systems trust us to do this at scale. Organizations like Manulife, SCAN, Geisinger, and Medibank on the payer side, and Baptist and Shoppers Drug Mart on the provider side.
League is looking for a Principal Security Engineer to serve as the senior technical leader within our Security Engineering organization. This role entails designing and driving security architecture across a rapidly AI-native engineering environment, in close partnership with Product Security and Security Operations.
Product Security owns day-to-day security reviews and vulnerability management; Security Operations owns detection and response. This role sets technical direction and design for the organization's most complex and novel systems, including AI/agentic architectures, and serves as the connective tissue that makes the broader security function more effective.
The right person for this role doesn't wait for a ticket. They show up in design conversations, ask the right question at the right moment, and leave engineering and security colleagues alike more capable than they found them - all while being a strategic cross-functional partner that people enjoy collaborating with.
AI Fluency & Ways of Working
At League, we are an AI-native organization. We expect all employees regardless of role or level to thoughtfully leverage AI to improve the quality, speed, and impact of their work.
What this means in practice:
- Use AI tools as part of your daily workflow to enhance productivity, problem-solving, and decision-making (e.g., drafting, analysis, coding, research, or process automation)
- Apply judgment and accountability when using AI by reviewing outputs for accuracy, bias, and quality before use
- Continuously learn and adapt as new AI tools and capabilities emerge, incorporating them into your ways of working
- Identify opportunities to improve how work gets done from personal productivity to team-level workflows by leveraging AI effectively
- Operate with strong data responsibility and security awareness, especially when working with sensitive or regulated information
How this scales by level:
- Individual Contributors: Use AI to improve personal productivity and quality of output
- Senior ICs / Managers: Integrate AI into team workflows and improve processes
- Leaders: Drive AI adoption at the organizational level and shape how work is done across teams
What we look for:
- Demonstrated experience using AI tools in a practical, responsible way
- Curiosity and openness to experimenting with new technologies
- Ability to balance efficiency with quality and sound judgment
Our employees come from different backgrounds, and we celebrate those differences. We are looking for the best candidates for our open roles, but do not expect applicants to meet every qualification in order to be considered. If you are excited about what you could accomplish at League and believe you can add value to our team, we would love to hear from you.
We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. If you are an individual in need of assistance at any time during our recruitment process, please contact us at recruitinginfo@league.com.
Our Application Process:
Applying to a role you love can be exhausting, and understanding the next steps can feel vague and uncertain. You have done the hard part of submitting your application; let's do ours by sharing potential next steps
- You should receive a confirmation email after submitting your application.
- A recruiter (not a computer) reviews all applications at League.
- If we see alignment with League's needs, a recruiter will reach out to learn more about your goals. The recruiter will also share the team-specific interview process depending on the roles you are exploring.
- The final step is an offer, which we hope you will accept!
- Prior to joining us, we conduct reference and background checks. Additional checks could be required for US Candidates, depending on the role you are exploring.
Here are some additional resources to learn more about League:
Work Location:
We have a mix of office-centric roles based in our vibrant Toronto office, and remote-eligible roles based anywhere in Canada or US. Each job posting will indicate where the role will be based. Regardless of the role’s posted location, all Toronto-area Leaguers (living within 65 km of our downtown HQ) collaborate in-office Monday through Thursday. Depending on your distance to the office, you’ll enjoy 10 or 20 Flexible Remote Days each quarter for focus and deep-work time. We are committed to fostering a meaningful work environment and connections for all Leaguers regardless of location.
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Use of AI NoticeWe are committed to ensuring fairness and transparency throughout our hiring process. League may use Artificial Intelligence (AI) tools to assist in the screening of applicants for this position. Please check out our stance on using AI in recruitment
here.
Privacy Policy
Review our Privacy Policy for information on how League is protecting personal data. 
