Hi, I'm Yassir Abousselham - Chief Information Security Officer at Calendly
I thrive on building secure, scalable systems and leading innovative cybersecurity strategies. My passion lies in protecting organizations through strong technical and business-aligned security practices, especially within fast-paced tech environments.
At a glance
Curated signals on strengths, focus areas, and how they can help.
Led corporate data security initiatives at Google, gaining deep experience in large-scale tech environments.
Currently serves as CISO at Calendly, driving information security strategy for a growing SaaS company.
Can provide strategic guidance on building and scaling effective cybersecurity programs and navigating complex compliance landscapes.
🚀 Career trajectory
Foundational Expertise
Began career at EY, building a strong foundation in cyber security consulting and IT audit.
✦ Cyber Security Consulting
✦ IT Audit
✦ EY
In-House Security Pioneer
Drove corporate data security initiatives at Google, gaining deep experience in large-scale tech environments.
✦ Corporate Security
✦ Data Security
Entrepreneurial CISO
Founded and led Silicon Valley Cyber as CISO, developing agile security solutions and strategies.
✦ Startup Security
✦ Founder
✦ CISO
Executive Leadership
Currently serving as CISO at Calendly, leading information security strategy for a growing SaaS company.
✦ SaaS Security
✦ CISO
✦ Calendly
💪🏻 Superpowers
Strategic Security Architect
Building resilient defenses for complex environments.
✦ Designed and implemented comprehensive security programs for global organizations.
✦ Drove product security initiatives from concept through market launch.
✦ Expert in cloud security (AWS, GCP) and compliance frameworks (PCI DSS, SOC2, ISO 27001).
Leadership Catalyst
Cultivating high-impact cybersecurity teams.
✦ Proven track record in recruiting, mentoring, and retaining top security talent.
✦ Fostered collaborative environments to drive innovation and operational excellence.
✦ Empowered teams to tackle sophisticated cyber threats effectively.
Compliance & Governance Champion
Navigating intricate regulatory landscapes with precision.
✦ Successfully achieved and maintained critical certifications like PCI DSS and SOC2.
✦ Developed and executed robust risk management and IT audit strategies.
✦ Ensured adherence to global data privacy regulations (GDPR, HIPAA).
I'm excited about
✦ Exploring strategic partnerships to enhance information security postures.
✦ Seeking opportunities to advise innovative tech startups in their growth phase.
✦ Engaging with a community focused on cutting-edge cybersecurity challenges.
I can help with
✦ Provide strategic guidance on building and scaling effective cybersecurity programs.
✦ Offer insights into navigating complex compliance and regulatory landscapes.
✦ Share expertise on product security and go-to-market strategies for tech companies.
I would love your help on
✦ Connect with emerging technology leaders in the AI and machine learning space.
✦ Gain insights into novel approaches for threat detection and response.
✦ Find potential collaborators for advanced security research initiatives.