Senior Software Security Engineer

About the role

If you're interested in this role, please apply in English and include an English version of your Resume/CV.

The Role

Joining Moderna means advancing mRNA science to transform medicine. Work with exceptional global teams on a broad pipeline and build a career that makes a real difference for patients.

As a Senior Software Security Engineer, you will lead Moderna's code security strategy and provide security architecture guidance across the broader hybrid environment, including cloud, network, and emerging AI use cases.

You will independently assess how software is built, identify risk in custom code and development patterns, and establish practical security controls across source control, artifact management, and CI/CD workflows.

Working with software engineers, architects, security operations, platform teams, peers, and senior stakeholders, you will connect control gaps across layers, guide complex risk-informed decisions, and advance secure-by-design and secure-by-default practices.

Here's What You'll Do

• Own and drive the enterprise code security strategy and roadmap, including technical ownership of the primary code security platform and prioritization of improvements based on risk and engineering needs.
• Lead code security architecture efforts for custom-built applications and services, including secure design reviews, architecture reviews, and risk assessments across the software development lifecycle.
• Lead risk assessments across on-prem and cloud environments, identifying vulnerabilities and recommending mitigation strategies for both COTS products and custom inhouse developed services.
• Conduct threat modeling exercises for applications, APIs, platforms, and supporting infrastructure to proactively identify abuse paths and control gaps.
• Drive security best practices for secure software development, including code security principles, dependency risk management, secrets handling, and secure-by-design engineering patterns.
• Assess and advise on security risks across cloud, network, and AI-enabled architectures, ensuring code-level concerns are evaluated in the broader system context.
• Identify and remediate security misconfigurations across applications and cloud environments, collaborating with security operations and platform teams to improve prevention, detection, and response.
• Provide architectural guidance and technical leadership across multiple security domains, mentor peers, and independently guide complex security decisions, escalating material risks and trade-offs to the appropriate stakeholders.
• Explore opportunities to use approved Generative AI tools to improve productivity, knowledge sharing, and role-relevant workflows while maintaining required quality, confidentiality, and compliance standards.

Here's What You'll Bring to the Table (Basic Qualifications)

• 6+ years of experience in cybersecurity or software engineering, with substantial experience in application and code security architecture and demonstrated ownership of complex security initiatives.
• Demonstrated experience reviewing custom-built applications and services for security risk, including secure design, code-level weaknesses, and architectural flaws.
• Strong understanding of secure software development practices, threat modeling, dependency and package risk, secrets management, and common application security vulnerabilities.
• Ability to work effectively with software engineers and architects, translating security concerns into practical guidance that improves code and system design.
• Broad security knowledge across cloud, network, and AI domains, with the ability to assess risk beyond the codebase and understand how controls interact across layers.
• Experience assessing cloud security architectures and identifying misconfigurations in modern hybrid environments.
• Working knowledge of network security fundamentals, including segmentation, core protocols, and common enterprise security controls.
• Familiarity with AI security risks and architectural considerations, especially where AI-enabled services intersect with application and data security.
• Strong leadership and communication skills, capable of influencing technical decisions and explaining complex security risks to senior stakeholders.
• Exceptional analytical, critical thinking, and problem-solving skills with a strategic mindset.

Pay & Benefits

At Moderna, we believe that when you feel your best, you can do your best work. That's why our benefits and well-being resources are designed to support you-at work, at home, and everywhere in between.

• Competitive healthcare, plus voluntary benefit programs to support your unique needs
• A holistic approach to well-being with access to fitness, mindfulness, and mental health support
• Family building benefits, including fertility, adoption, and surrogacy support
• Generous paid time off, including vacation, bank holidays, volunteer days, sabbatical, global recharge days, and a discretionary year-end shutdown
• Savings and investments to help you plan for the future
• Location-specific perks and extras

The benefits offered may vary depending on the nature of your employment with Moderna and the country where you work.