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Senior Software Developer, Defensive Security

Job in Toronto, Ontario, C6A, Canada
Listing for: Themis Solutions Inc.
Full Time position
Listed on 2026-02-28
Job specializations:
  • IT/Tech
    Cybersecurity
Salary/Wage Range or Industry Benchmark: 149600 - 176000 CAD Yearly CAD 149600.00 176000.00 YEAR
Job Description & How to Apply Below

Senior Software Developer, Defensive Security

Clio is the global leader in legal AI technology, empowering legal professionals and law firms of every size to work smarter, faster, and more securely.

We are currently seeking a Senior Developer to join our rapidly growing Defensive Security team. The Application Security team is responsible for emulating real-world adversaries to proactively discover, exploit, and help remediate critical security vulnerabilities across our applications. We provide an essential adversarial perspective, challenging our defences and partnering with development teams to eliminate flaws before they can be abused.

This role is for someone who is passionate about building innovative solutions and being exposed to new challenges and technologies while making an impact. This role is available to candidates across Canada. If you are local to one of our hubs (Burnaby, Calgary, or Toronto) you will be expected to be in office minimum two days per week for our Anchor Days.

What you’ll do:
  • Bring strong, senior level development experience to the Application Security Team
  • Develop and implement tools to help educate, reduce toil, and prevent security flaws
  • Provide detailed guidance and support to teams in vulnerability remediation along with remediating vulnerabilities in core codebases
  • Bring experience into Clio’s application security teams and advise on security best practices
What you may have:
  • Experience in secure software development; application security; and security tools development and implementation, especially in the CI/CD environment
  • Experience in some combination of the following disciplines: cloud security, threat modelling, and architecture review
  • A love for learning and developing creative security solutions for a fast growing, continuous integration environment that hits upwards of 50 deployments a day
  • Contribute to growing security awareness and knowledge amongst the product organization
  • Identify, improve, and implement tools for automated application scanning, static analysis, and custom tooling
  • Elevate and educate our security culture within Clio, contributing to our cultural values of “Lead with Context” and “Get Better Every Day”
  • 5+ years experience with Ruby, Python, Java script or other equivalent modern languages and tools
  • A keen interest in improving your craft using AI
Compensation & Benefits
  • Competitive, equitable salary with top-tier health benefits, dental, and vision insurance
  • Hybrid work environment, with expectation for local Clions (Vancouver, Calgary, Toronto, Dublin and Sydney) to be in office min. twice per week.
  • Flexible time off policy, with an encouraged 20 days off per year.
  • $2000 annual counseling benefit
  • RRSP matching and RESP contribution
  • Clioversary recognition program with special acknowledgement at 3, 5, 7, and 10 years
  • Expected salary range for this role is $149,600 to $176,000 to $202,400 CAD.
Diversity, Inclusion, Belonging and Equity (DIBE) & Accessibility

Our team shows up as their authentic selves, and are united by our mission. We are dedicated to diversity, equity and inclusion. We pride ourselves in building and fostering an environment where our teams feel included, valued, and enabled to do the best work of their careers, wherever they choose to log in from. We believe that different perspectives, skills, backgrounds, and experiences result in higher-performing teams and better innovation.

We are committed to equal employment and we encourage candidates from all backgrounds to apply.

Clio provides accessibility accommodations during the recruitment process. Should you require any accommodation, please let us know and we will work with you to meet your needs.

Disclaimer

We only communicate with candidates through official  email addresses.

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Position Requirements
10+ Years work experience
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