Quick Responder
4.7
(7 reviews)
CISSP, CRISC, OSCE3. Pivoted from Physics to Cybersecurity. Pentester, GRC, Cyber Education, Threat Modelling
Singapore Active this week Usually responds in half a day

Services

$200 / month

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  1. 1 Free intro call
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  2. 2 Ongoing calls + chat
    2 calls per month, unlimited Q&A. Replies in 2 days.
  3. 3 No lock-in
    Month to month, no contract.
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MentorCruise summary

Donavan is a Senior Cybersecurity Consultant with experience in penetration testing, cyber compliance, and threat modeling. He holds CISSP, CRISC, and OSCE3 certifications and has worked across government, aviation, and defense. He helps aspiring cybersecurity professionals build foundational skills, prepare for certifications, and develop conference papers.

Based on 3 verified mentee reviews

  • Two reviewers value his guidance for learning cybersecurity, including beginner-friendly resources.
  • Two people describe him as approachable and available to answer questions promptly.

About

I have managed to help my mentees secure cybersecurity jobs, file successful papers for cybersecurity conferences and have pushed mentees beyond what they thought was possible. Briefly, I advocate an open-ended mentorship style where I would like mentees to take ownership of their goals, whilst I guide them towards them.

I have mentored juniors both within and outside Singapore to obtain jobs and advanced certifications necessary for cybersecurity job roles, from non-tech roles such as plumbing. I have also managed to inspire mentees to present at conferences such as Singapore's SINCON, Romania's DEFCAMP and FIRST in Uzbekistan.

I have pivoted across consultancy and end-user roles. Now, I look at AI security, product security, cyber compliance as well as threat modeling, and penetration tests. My expertise spans government, aviation, transportation, defense, and financial sectors.

I have contributed to the open-source cybersecurity community, including creating vulnerable machines on Vulnhub from 2018 to 2021. I frequently speak at conferences in multiple countries such as SECCON (Japan), DEFCAMP (Romania), GCC 2025 (Taiwan), Seasides 2025 (India), FIRST @ Central Asia (Uzbekistan), SINCON (Singapore) and the inaugurual DEFCON Singapore. I also conduct career talks to inspire students to pursue cybersecurity careers.

At Thales, I led the development of "Defend the Breach" (DTB), a cybersecurity gamification experience where players role-play as CISOs making complex decisions. I have also been on VULNCON's advisory board since 2024, providing technical thought leadership and moderating executive-level panels on cybersecurity's future.

Outside Thales, I co-lead Threat Modeling Connect's Singapore chapter, and am a ISACA Emerging Trends Working Group member. I publish on avenues such as ISACA's blog, newsletter, journal as well as InfoSecurity Magazine.

My credentials include the OSCE3, OSCP, CISSP, and CRISC certifications. I am currently finishing Master's in Cybersecurity at Georgia Tech (OMSCY).

For more information about me, visit my website at https://donavan.sg and my cybersecurity blog at https://donavan.sg/blog, and arrange for an introductory call.

What mentees say

5 out of 5 stars

Anil Kumar

Anil Kumar

Standard Plan • 4 months

5 out of 5 stars

Jason

Jason

Standard Plan • 6 months

5 out of 5 stars

Great mentor. Great person in general. Very helpful and always keen to talk/help and is always there. Loving it!

Ronnie

Ronnie

Lite Plan • 1 month

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What happens when you start

You tell Donavan your goals. They see exactly what you want to work on before session one.

You meet within days. Donavan reviews your application and books your first session, usually within a day or two.

You leave with a plan. Concrete next steps and a weekly rhythm from your very first week.

Start your mentorship