Sr. Staff AI Engineer
Zscaler is seeking a Sr. Staff AI Engineer for their Red Teaming department in Zagreb or Split, Croatia. This role involves leading the design and execution of red team exercises against generative AI systems, focusing on prompt injection and adversarial inputs. The successful candidate will also own the technical vision and development of red teaming tools, converting research into production-grade solutions.
Zscaler accelerates digital transformation to ensure our customers can be more agile, efficient, resilient, and secure. As an AI-forward enterprise, we are constantly pushing the envelope, leveraging the world’s largest security data lake to power our cloud-native Zero Trust Exchange platform. This innovation protects our customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location.
Here, impact in your role matters more than title and trust is built on results. We say, impact over activity. We seek innovators who actively use AI to amplify their impact and who thrive in an environment where we leverage intelligent systems to stay ahead of evolving threats. We believe in transparency and value constructive, honest debate—we’re focused on getting to the best ideas, faster. We build high-performing teams that can make an impact quickly and with high quality. To do this, we are building a culture of execution centered on customer obsession, collaboration, ownership, and accountability.
We are looking for a Sr Staff AI Engineer to join our Red Teaming department in a hybrid capacity in Zagreb or Split, Croatia, reporting to the Manager, Machine Learning. We are looking for a technically exceptional AI Engineer to join our Croatia-based team and take a leading role in building the products that define how AI systems are secured. You will not only execute red team work, but also own projects end-to-end, from technical architecture through delivery, and help set the strategic direction of what we build.
Posted June 10, 2026