Senior/Staff Application Security Engineer

Nebius Group; Amsterdam; Remote; EUR 120,000 - 180,000; Full time

Benefits offered by this job

Competitive compensation

Career growth & learning

Flexibility & ownership

Collaborative culture

Impactful AI projects

International environment

Job summary

Nebius is seeking a Senior/Staff Application Security Engineer to safeguard our software. You will identify vulnerabilities, implement best security practices, and collaborate with development teams.

Strong background in secure coding, threat modeling, and Secure SDLC is required. Responsibilities include building ASPM at scale, automating SAST/SCA in CI/CD, improving detection rules, and staying ahead of threats with modern mitigation techniques.

Qualifications

• 6+ years of experience in application security.
• Strong knowledge of OWASP Top 10 and mitigation approaches.
• Proficiency in secure coding in Python/Go/Java/JS.
• Hands-on security testing tool experience (Burp, ZAP, Semgrep).
• Understanding of SAML/OIDC authentication protocols.
• Experience conducting threat modeling sessions.

Responsibilities

• Build and maintain Application Security Posture Management at scale.
• Automate SAST/SCA in CI/CD pipelines; reduce false positives.
• Identify, analyze and remediate application security vulnerabilities.
• Collaborate with development teams to embed security in SDLC.
• Develop secure coding guidelines for developers.
• Conduct threat modeling and risk assessments for new and existing apps.

Skills

6+ yrs exp

OWASP Top 10

Secure coding (Python/Go/Java/JS)

Go or Python

Security testing tools

Auth protocols SAML/OIDC

Threat modeling

Tools

Burp Suite

ZAP

Semgrep

Job description

About Nebius:

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.

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.

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.

Application Security

The team is responsible for the security of Nebius's main public offerings: Compute, VPC, Managed K8s, Marketplace, Managed Soperator, and others. This includes building out the Secure SDLC, threat modeling, and vulnerability management platforms.

The Role

We are looking for an Senior/Staff Application Security Engineer who will ensure the security of our software by identifying and mitigating vulnerabilities, implementing best security practices, and collaborating with development teams. The ideal candidate will have a strong background in secure coding, threat modeling and building Secure SDLC.

• Remote - Europe

What you will do

• Build and maintain Application Security Posture Management (ASPM) at the Company scale.
• Automate and support SAST, SCA tools, etc as part of CI/CD pipelines.
• Improving SAST, secrets detection rules. Keeping false positive rate low.
• Identify, analyze, and remediate application security vulnerabilities.
• Collaborate with development teams to integrate security best practices into the software development lifecycle (SDLC).
• Develop and maintain secure coding guidelines for development teams.
• Conduct, run threat modeling and risk assessments for new and existing applications.
• Provide development teams with instruments that facilitate security-related work like threat modelling, vulnerability detection, etc.
• Stay updated on the latest security threats, vulnerabilities, and mitigation techniques.
• Serve as an application security subject matter expert to other teams.

What we look for

• 6+ years of experience in application security.
• Strong knowledge of common application security risks (e.g. OWASP Top 10) and how to mitigate them.
• Experience with secure coding practices in languages such as Python, Go, Java, or JavaScript.
• Proficiency in a common programming language (such as Go or Python) with a willingness to learn Go, if necessary.
• Hands-on experience with security testing tools (Burp Suite, ZAP, Semgrep, etc.).
• Understanding of authentication protocols like SAML or OIDC.
• Experience in conducting threat-modeling sessions.

Bonus points

• Confidence in presenting your ideas and opinions in a manner that can be challenged, while responding well to feedback.
• Experience in designing, building, and maintaining security automation.
• Experience in translating compliance and regulation requirements into technical specifications.
• Experience in exploiting vulnerabilities in web applications, Linux kernels, containers, and networks.
• Security certifications such as OSCP or OSWE.

Benefits & Perks:

• Competitive compensation
• Career growth and learning opportunities
• Flexibility and ownership
• Collaborative and innovative culture
• Opportunity to work on impactful AI projects
• International environment and talented teams

What's it like to work at Nebius:

Fast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI

Applicants must be authorized to work in the country in which they apply and will be required to provide proof of employment eligibility as a condition of hire.