Senior Application Security Engineer

Overview We are currently seeking a Senior Application Security Engineer to join our rapidly growing 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. A day in the life might look like: Write, review, debug, and implement tools to help developers avoid security flaws; Build partnerships with development teams and advise on security best practices; Contribute to collective developer education by driving security awareness and knowledge amongst the product organization; Provide detailed guidance and support to teams in vulnerability remediation, and develop frameworks, guidelines, and systematic fixes for recurring vulnerabilities; Resolve issues, navigate ambiguity, and maintain positive working relationships with researchers in our Bug Bounty program; Identify and implement tools for automated application scanning, static analysis and related tools; Perform penetration testing, and offensive campaigns against internal assets; Perform reactive incident response and forensics when a security event occurs; Perform proactive research to detect new attack vectors; Elevate and educate our security culture within Clio, contributing to our cultural values; Qualifications Experience in Application Security, with a strong focus on offensive security and penetration testing; Hands‑on expertise identifying and exploiting complex vulnerabilities (e.g., SSRF, Deserialization, logic bypasses); Proven ability to lead and conduct formal threat modeling sessions; Strong proficiency in at least one major programming language (e.g., Python, .NET, JavaScript); Experience securing applications in modern cloud environments (AWS, Azure, or GCP); Expertise with common application security tools and platforms (e.g., Burp Suite, SAST, SCA); Experience with log aggregation and SIEM technologies; Ability to identify malicious behaviour and emerging threats via log analysis; Bonus Security certifications such as OSCP or OSWE; Active participation in the security community (presenting at conferences, contributing to open-source tools); Experience with Ruby on Rails, Puppet, Kubernetes, Terraform, ELK (Elastic, Logstash and Kibana); Strong AWS security experience on EC2 and managed services; Infrastructure security (WAF, ACLs, authentication, device hardening); Benefits Competitive, equitable salary with top-tier health benefits, dental, and vision insurance; Hybrid work environment, with expectation for local Clions (Vancouver, Calgary, Toronto, and Dublin) to be in office minimum 2 days per week on our Anchor Days; 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; Salary The full salary range for this role is $146,200 to $172,000 to $197,800 CAD. Please note salary bands may differ based on location and local currency. 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. Application instructions Please apply through our Careers portal. We only communicate with candidates through official @clio.com email addresses. #J-18808-Ljbffr