Spotlight Series: Alessandra Rizzo, Threat Detection Engineer, Sysdig

Alessandra Rizzo, Threat Detection Engineer, Sysdig

ARTICLE SUMMARY

Alessandra Rizzo, Threat Detection Engineer at Sysdig, shares her journey from threat intelligence consulting in Italy to investigating advanced cloud threats in her current role. Alessandra opens up about the resilience and preparation it took to shift into a more technical role, the pride she feels in publishing impactful research, and the importance of pairing confidence with humility in cybersecurity.

Alessandra Rizzo, Threat Detection Engineer at Sysdig, is a malware and Advanced Persistent Threat (APT) research enthusiast.

She gained expertise as a threat intelligence consultant in Italy with some of Europe’s premier financial institutions. In her current role, Alessandra conducts investigations into emerging Linux and cloud threats and malicious groups’ operations.

How did you land your current role? Was it planned?

I always knew I wanted to move into a more technical role within cybersecurity, and after gaining a solid foundation in threat intelligence, I began to actively work toward that transition. It wasn’t an overnight shift, though – it took deliberate effort and a fair amount of resilience. I had some exposure to technical concepts during my university studies, but I quickly realized that stepping into a hands-on security engineering role would require a deeper level of technical fluency. I dedicated several weeks to intensive preparation (on top of what I’d already learned in university), diving into new material, brushing up on areas I felt less confident in, and practicing how to clearly communicate complex topics during interviews.

Landing my role as a Threat Detection Engineer on the Sysdig Threat Research Team wasn’t easy, but it was worth it. My preparation not only helped me perform well in the interview process, but also gave me a strong start once I stepped into the role. It felt rewarding to see that my effort translated into tangible progress in my career, and it reaffirmed how important it is to be both strategic and adaptable when pursuing new challenges.

What are you most proud of in your career so far?

One of the moments I’m most proud of in my career was publishing an in-depth investigation that exposed a quiet, persistent cyber campaign. The research not only shed light on a threat that had gone largely unnoticed, but also helped break down the complexity of the tactics being used – making them more accessible and actionable for defenders across the cybersecurity community. It was incredibly rewarding to see the report resonate with analysts and security teams, and to know that it contributed to improving real-world defenses across different organizations.

Are there any specific skills or traits that you notice companies look for when you’re searching for roles in your field?

In technical roles, confidence is essential – but I’ve found that pairing it with humility is what really stands out. Cybersecurity is filled with incredibly skilled professionals, and rather than being intimidated by that, I see it as an opportunity to keep learning while also recognizing the value I bring to the table. Staying grounded helps me contribute more meaningfully to the community and collaborate more effectively with others who are just as passionate about the field.

Critical thinking is another trait that companies consistently look for. It’s not just about knowing the technical steps, it’s about knowing when to pause, reassess, and ask whether the current approach is truly the best one. The ability to step back and view a problem from different angles often leads to more elegant, efficient solutions. In a fast-moving industry like cybersecurity, that mindset can make a real difference.

Have you ever faced insecurities and anxieties during your career, and how did you overcome them?

Absolutely, especially when I made the move across continents from Italy to Canada. It was a big life and career shift, and one of the most challenging parts was navigating a completely new job market. The expectations, hiring processes, and even the way people talk about roles can vary so much from one country to another. There were moments when I questioned whether I would find the right fit, or how long it would take to break into a new space.

When I landed my current role at Sysdig, I was met with an incredible level of support from my team, which made all the difference. That sense of belonging and encouragement gave me the confidence to take on new challenges without fear of failing. It reminded me how vital a strong, inclusive environment is, especially when you’re building your footing in a new place.

Entering the world of work can be daunting. Do you have any words of advice for anyone feeling overwhelmed?

I remember how daunting it felt to be job hunting. It took me six months to land my current role, and each rejection along the way felt personal. It’s easy to internalize those rejections and start questioning your worth, but I’ve learned that it often has very little to do with your actual skills or potential. Sometimes, it’s just timing or fit. The key is not to let those moments define you.

What helped me was shifting my mindset: every role I didn’t get made space for the one that was truly right for me. If I had accepted something earlier in the process, I might never have found my place at Sysdig – a role and team that really aligned with what I was looking for. So if you’re feeling overwhelmed, know that it’s okay to take your time. The right opportunity is out there.

What advice would you give other women wanting to reach their career goals in technology?

One piece of advice I’d give to women pursuing careers in tech is this: don’t underestimate how much you know or how much you bring to the table. It can be intimidating to find yourself in rooms where you’re the only woman, but that doesn’t mean you don’t belong there. In fact, your presence is powerful. It means you’re not only pushing forward for yourself, but also helping to carve a path for others who will follow.

I remind myself often that while the journey can feel isolating at times, it’s also part of something much bigger. Every step we take helps shift the narrative, and each one of us plays a role in shaping a more representative future. So whenever you doubt yourself, zoom out and look at the bigger picture: you are part of a necessary and important change.

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