Sr. Engineer, AI Cyber Security

Job Title: Sr. Engineer, AI Cyber Security
Job Location: Remote, USA
Job Location Type: Remote
Job Contract Type: Full-time
Job Seniority Level:
About This Role

As Biogen's AI Security Engineer, you are a hands-on technical specialist responsible for securing the organization's rapidly expanding use of artificial intelligence, machine learning, and generative AI technologies. This role operates at the intersection of cybersecurity engineering and AI/ML systems — ensuring that AI deployments across Biogen are resilient against adversarial threats, data poisoning, model manipulation, prompt injection, and unauthorized data exposure.

The AI Security Engineer will design, implement, and operate security controls purpose-built for AI workloads — spanning model development pipelines, inference endpoints, training data protection, and AI-assisted automation platforms. This role is responsible for translating emerging AI threat frameworks (MITRE ATLAS, OWASP AI Top 10, NIST AI RMF) into actionable engineering controls that protect Biogen's AI investments without impeding innovation velocity.

This position requires a rare combination of software engineering depth, AI/ML systems knowledge, and cybersecurity expertise. The scope demands:

Deep technical proficiency across AI/ML security, cloud security, and application security — with the ability to build production-grade security tooling, not just assess or advise

Autonomous execution — independently identifying AI security gaps, designing solutions, and implementing them end-to-end without requiring constant direction

Adversarial mindset — thinking like an attacker to identify how AI systems can be subverted, manipulated, or exploited before threat actors do

Cross-domain fluency — bridging the gap between data science teams building AI and security teams protecting the enterprise, translating between both worlds.

What You’ll Do

AI Threat Detection & Response Engineering

Design, build, and operate detection capabilities for AI-specific threats including prompt injection, model extraction, training data poisoning, and adversarial input attacks

Develop and maintain AI security monitoring pipelines that correlate signals across LLM interactions, API gateways, and model inference endpoints

Engineer automated response playbooks for AI security incidents — including model quarantine, token revocation, and session termination

Continuously research emerging AI attack vectors and translate findings into detection signatures and prevention controls

Operate and tune CrowdStrike AI Runtime Defense (AIRD) and Microsoft Purview AI governance controls across the environment

AI Platform Security Engineering

Implement security controls across AI development and deployment platforms (AWS SageMaker, Azure OpenAI, Databricks, internal ML pipelines)

Secure model training environments — including data access controls, compute isolation, artifact signing, and pipeline integrity verification

Engineer guardrails for generative AI usage — content filtering, DLP integration, output validation, and session-level access controls

Design and enforce AI model governance controls including model registry security, version control integrity, and deployment approval gates

Perform security architecture reviews of new AI services and integrations before production deployment

AI Risk Assessment & Framework Implementation

Conduct technical risk assessments of AI systems using MITRE ATLAS, OWASP AI Top 10, and NIST AI RMF frameworks

Perform adversarial testing (red teaming) of AI models and AI-integrated applications to identify vulnerabilities before production deployment

Develop and maintain AI security standards, reference architectures, and secure development guidelines for AI/ML teams

Evaluate third-party AI services and vendor AI integrations for security posture, data handling practices, and supply chain integrity

Security Automation & AI-Augmented Defense

Build and maintain AI-powered security tools that augment the cybersecurity team's detection and response capabilities

Develop integrations between security platforms (CrowdStrike, Microsoft Defender, Okta, Zscaler) and AI/ML systems for intelligent threat correlation

Engineer automated security workflows using LLMs and agentic AI for threat hunting, alert triage, and incident investigation acceleration

Contribute to the security team's internal AI capabilities — including MCP server development, agent frameworks, and security data pipelines

Build and maintain security scoring engines and risk quantification models that drive prioritization decisions

Required Skills

5+ years of combined experience in cybersecurity engineering, software engineering, and/or AI/ML systems

Demonstrated expertise in at least three of the following domains:

AI/ML Security: LLM security, prompt injection mitigation, model robustness testing, adversarial ML, AI supply chain integrity

Cloud Security Engineering: AWS, Azure, or GCP security architecture and controls implementation at scale

Application Security: Secure SDLC, API security, code review, penetration testing, threat modeling

Security Operations: Detection engineering, SIEM/SOAR development, incident response, threat hunting

Hands-on proficiency with Python and demonstrable experience building production security tooling and automation

Experience with AI/ML frameworks (PyTorch, TensorFlow, Hugging Face, LangChain) and AI cloud services (SageMaker, Azure OpenAI, Bedrock, Databricks)

Working knowledge of AI security frameworks: MITRE ATLAS, OWASP AI Top 10, NIST AI RMF

Experience with enterprise security platforms (CrowdStrike, Microsoft Defender, Okta, Zscaler, CyberArk, or equivalent)

Strong understanding of LLM architectures, retrieval-augmented generation (RAG), fine-tuning security implications, and agentic AI patterns

Bachelor's Degree in Computer Science, Cybersecurity, Data Science, or related technical field required

Job Level: ManagementAdditional Information
The base compensation range for this role is: $140,000.00-$187,250.00Base salary offered is determined through an analytical approach utilizing a combination of factors including, but not limited to, relevant skills & experience, job location, and internal equity.

Regular employees are eligible to receive both short term and long-term incentives, including cash bonus and equity incentive opportunities, designed to reward recent achievements and recognize your future potential based on individual, business unit and company performance.

In addition to compensation, Biogen offers a full and highly competitive range of benefits designed to support our employees’ and their families physical, financial, emotional, and social well-being; including, but not limited to:

Medical, Dental, Vision, & Life insurances

Fitness & Wellness programs including a fitness reimbursement

Short- and Long-Term Disability insurance

A minimum of 15 days of paid vacation and an additional end-of-year shutdown time off (Dec 26-Dec 31)

Up to 12 company paid holidays + 3 paid days off for Personal Significance

80 hours of sick time per calendar year

Paid Maternity and Parental Leave benefit

401(k) program participation with company matched contributions

Employee stock purchase plan

Tuition reimbursement of up to $10,000 per calendar year

Employee Resource Groups participation

Why Biogen?
We are a global team with a commitment to excellence, and a pioneering spirit. As a mid-sized biotechnology company, we provide the stability and resources of a well-established business while fostering an environment where individual contributions make a significant impact. Our team encompasses some of the most talented and passionate achievers who have unparalleled opportunities for learning, growth, and expanding their skills. Above all, we work together to deliver life-changing medicines, with every role playing a vital part in our mission. Caring Deeply. Achieving Excellence. Changing Lives.

At Biogen, we are committed to building on our culture of inclusion and belonging that reflects the communities where we operate and the patients we serve. We know that diverse backgrounds, cultures, and perspectives make us a stronger and more innovative company, and we are focused on building teams where every employee feels empowered and inspired. Read on to learn more about Biogen.

All qualified applicants will receive consideration for employment without regard to sex, gender identity or expression, sexual orientation, marital status, race, color, national origin, ancestry, ethnicity, religion, age, veteran status, disability, genetic information or any other basis protected by federal, state or local law. Biogen is an E-Verify Employer in the United States.

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Originally posted on Himalayas