<div class="content-intro"><p><strong>About Nebius:</strong></p> <p>Nebius is leading a new era in cloud infrastructure for the global AI economy. We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure.</p> <p>Built by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI.</p> <p>Listed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D.</p></div><h3><strong><span data-ccp-props="{}">The role</span></strong></h3> <p><span data-contrast="none"><span data-ccp-charstyle="normaltextrun" data-ccp-charstyle-defn="{"ObjectId":"ac0262f4-8a9e-5820-b908-2d943c5f7113|1","ClassId":1073872969,"Properties":[201342446,"1",201342447,"5",201342448,"1",201342449,"1",469777841,"Aptos",469777842,"Arial",469777843,"Aptos",469777844,"Aptos",201341986,"1",469769226,"Aptos,Arial",268442635,"24",469775450,"normaltextrun",201340122,"1",134233614,"true",469778129,"normaltextrun",335572020,"1",469778324,"Default Paragraph Font"]}">Nebius</span><span data-ccp-charstyle="normaltextrun"> is looking for a Head of Proactive Security to</span><span data-ccp-charstyle="apple-converted-space" data-ccp-charstyle-defn="{"ObjectId":"2fd183b4-ad5c-5199-9fc7-89a6d0356079|1","ClassId":1073872969,"Properties":[201342446,"1",201342447,"5",201342448,"1",201342449,"1",469777841,"Aptos",469777842,"Arial",469777843,"Aptos",469777844,"Aptos",201341986,"1",469769226,"Aptos,Arial",268442635,"24",469775450,"apple-converted-space",201340122,"1",134233614,"true",469778129,"apple-converted-space",335572020,"1",469778324,"Default Paragraph Font"]}"> </span><span data-ccp-charstyle="normaltextrun">establish</span><span data-ccp-charstyle="apple-converted-space"> </span><span data-ccp-charstyle="normaltextrun">and lead the Proactive Security pillar. Reporting directly to the CISO, this leader will manage the Red Team, Penetration Testing, Threat Hunting, and Threat Intelligence teams.</span></span><span data-contrast="none"><span data-ccp-charstyle="eop" data-ccp-charstyle-defn="{"ObjectId":"920dbcde-2834-5e15-a5fa-062170b236ba|1","ClassId":1073872969,"Properties":[201342446,"1",201342447,"5",201342448,"1",201342449,"1",469777841,"Aptos",469777842,"Arial",469777843,"Aptos",469777844,"Aptos",201341986,"1",469769226,"Aptos,Arial",268442635,"24",469775450,"eop",201340122,"1",134233614,"true",469778129,"eop",335572020,"1",469778324,"Default Paragraph Font"]}"> </span></span><span data-ccp-props="{"134233117":false,"134233118":false,"201341983":0,"335559738":0,"335559739":0,"335559740":240}"> </span></p> <p><span data-contrast="none"><span data-ccp-charstyle="normaltextrun">The role</span><span data-ccp-charstyle="apple-converted-space"> </span><span data-ccp-charstyle="normaltextrun">is responsible for</span><span data-ccp-charstyle="apple-converted-space"> </span><span data-ccp-charstyle="normaltextrun">anticipating</span><span data-ccp-charstyle="apple-converted-space"> </span><span data-ccp-charstyle="normaltextrun">relevant threats, challenging </span><span data-ccp-charstyle="normaltextrun">Nebius's</span><span data-ccp-charstyle="normaltextrun"> defenses,</span><span data-ccp-charstyle="apple-converted-space"> </span><span data-ccp-charstyle="normaltextrun">identifying</span><span data-ccp-charstyle="apple-converted-space"> </span><span data-ccp-charstyle="normaltextrun">exploitable weaknesses, hunting for adversary activity that may evade existing controls, and converting findings into measurable security improvements.</span></span><span data-contrast="none"><span data-ccp-charstyle="eop"> </span></span><span data-ccp-props="{"134233117":false,"134233118":false,"201341983":0,"335559738":0,"335559739":0,"335559740":240}"> </span></p> <p><span data-contrast="none"><span data-ccp-charstyle="normaltextrun">This is a hands-on leadership position for someone who combines offensive-security depth, threat-led thinking, strong operational judgment, and the ability to influence product, engineering, infrastructure, and security stakeholders.</span></span><span data-contrast="none"><span data-ccp-charstyle="eop"> </span></span><span data-ccp-props="{"134233117":false,"134233118":false,"201341983":0,"335559738":0,"335559739":0,"335559740":240}"> </span></p> <p> </p> <p><strong><span data-contrast="auto"><span data-ccp-charstyle="Strong">Your responsibilities will include:</span></span></strong><span data-ccp-props="{"134233117":true,"134233118":true}"> </span></p> <ul> <li> <p><strong><span data-contrast="none"><span data-ccp-charstyle="normaltextrun" data-ccp-charstyle-defn="{"ObjectId":"ac0262f4-8a9e-5820-b908-2d943c5f7113|1","ClassId":1073872969,"Properties":[201342446,"1",201342447,"5",201342448,"1",201342449,"1",469777841,"Aptos",469777842,"Arial",469777843,"Aptos",469777844,"Aptos",201341986,"1",469769226,"Aptos,Arial",268442635,"24",469775450,"normaltextrun",201340122,"1",134233614,"true",469778129,"normaltextrun",3355720