Engineer, AI Prompt Security

The GCS – Security Architecture function secures Carnival Corp’s adoption of AI by protecting GenAI and agentic systems at the prompt and tool-invocation layer.

This position is a hands-on engineering role centered on scripting, programming, and automation—building the guardrails, detections, evaluation tooling, and reusable libraries that defend large language model and agentic applications against prompt injection, jailbreaks, and tool misuse.

The AI Engineer writes the software and automation that ships these protections into CI/CD and engineering workflows and operationalizes findings from the automated AI red-team / security posture platform to reduce risk to Carnival Corp and customer information assets..

Essential Functions

• Design, build, and maintain prompt-level security controls and guardrails (LLM firewalls, input/output filtering, jailbreak and prompt-injection defenses) for GenAI and agentic applications.
• Develop scripts, programs, and automation (primarily Python) to operationalize prompt-security controls, detections, and policy enforcement across AI applications.
• Build and maintain automated evaluation harnesses and regression test suites that continuously validate prompt and agent behavior against security policies.
• Integrate prompt-security controls and tests into CI/CD pipelines and engineering workflows so protections ship with every release.
• Build reusable libraries, SDKs, and templates that make secure prompting and safe tool-use the default for engineering teams.
• Enforce identity and PHI/PII/data-protection controls at the prompt and tool-invocation layer, ensuring agents respect least-privilege and data-handling boundaries.
• Define and document secure-prompting and agentic-development best practices, patterns, and anti-patterns, and drive adoption across engineering teams.
• Operationalize findings from the automated AI red-team / security posture platform, translating them into prompt-layer fixes and detections.
• Research and pilot prompt-security and LLM-defense tooling aligned to the NIST AI RMF and OWASP Top 10 for LLM.

Knowledge, Skills & Abilities

• Strong software-engineering fundamentals—scripting, programming, and automation (especially Python)—for building security tooling, guardrails, and evaluation harnesses, with sound practices in version control, testing, and CI/CD. Working knowledge of GenAI/LLM and agentic design patterns and protocols (agents, MCP) and prompt-security concepts (prompt injection, jailbreaks, tool misuse). Working knowledge of Identity and Access Management and data security/privacy controls (PHI/PII, encryption). Applied understanding of the NIST AI RMF and OWASP Top 10 for LLM. Strong written and verbal communication, including explaining AI security risks to non-technical stakeholders.

Essential/Minimum qualifications

• Bachelor's degree in Computer Science, Cyber Security, Software Engineering, Artificial Intelligence, or a related field (Master's a plus).
• Strong Python/scripting and general programming ability with sound software-engineering practices (version control, testing, CI/CD). Knowledge of GenAI/LLM and agentic systems, secure MCP configuration, Application/API security, and data protection. Cloud environment (Azure & AWS) security fundamentals.

Essential experience required

• 3+ years (mid-level) in software/security engineering, AI/ML, or platform engineering in a large enterprise setting, with a strong track record building automation and tooling.
• Hands-on Python development and CI/CD integration. Identity and Access Management fundamentals. Applied use of the NIST AI RMF and OWASP Top 10 for LLM.

Travel: No travel

Work Conditions: Work primarily in a climate-controlled environment with minimal safety/health hazard potential.

Physical Demands. Work primarily in a climate-controlled environment with minimal safety/health hazard potential.

This position is classified as “in-office.” As an in-office role, it requires employees to work from a designated Carnival office in South Florida Monday through Thursday each week. Employees may work from their homes on Fridays. Candidates must be located in (or willing to relocate to) the Miami/Ft. Lauderdale area.

Offers to selected candidates will be made on a fair and equitable basis, taking into account specific job-related skills and experience.

At Carnival, your total rewards package is much more than your base salary. All non-sales roles participate in an annual cash bonus program, while sales roles have an incentive plan. Director and above roles may also be eligible to participate in Carnival’s discretionary equity incentive plan. Plus, Carnival provides comprehensive and innovative benefits to meet your needs, including:

• Health Benefits:
• Cost-effective medical, dental and vision plans
• Employee Assistance Program and other mental health resources
• Additional programs include company paid term life insurance and disability coverage
• Financial Benefits:
• 401(k) plan that includes a company match
• Employee Stock Purchase plan
• Paid Time Off
• Holidays – All full-time and part-time with benefits employees receive days off for 8 company-wide holidays, plus 2 additional floating holidays to be taken at the employee’s discretion.
• Vacation Time – All full-time employees at the manager and below level start with 14 days/year; director and above level start with 19 days/year.  Part-time with benefits employees receive time off based on the number of hours they work, with a minimum of 84 hours/year.  All employees gain additional vacation time with further tenure.
• Sick Time – All full-time employees receive 80 hours of sick time each year.  Part-time with benefits employees receive time off based on the number of hours they work, with a minimum of 60 hours each year.
• Other Benefits
• Complementary stand-by cruises, employee discounts on confirmed cruises, plus special rates for family and friends
• Personal and professional learning and development resources including tuition reimbursement
• On-site Fitness center at our Miami campus

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About Us

Carnival Corporation & plc is the world’s largest leisure travel company, our mission to deliver unforgettable happiness to our guest through our diverse portfolio of leading cruise brands and island destinations, including Carnival Cruise Line, Holland America Line, Princess Cruises, and Seabourn in North America and Australia; P&O Cruises and Cunard Line in the United Kingdom; AIDA in Germany; Costa Cruises in Southern Europe.

Join us and embark on a career that offers not only the chance to grow professionally but also the opportunity to be part of a global community that makes a difference.

In addition to other duties/functions, this position requires full commitment and support for promoting ethical and compliant culture. More specifically, this position requires integrity, honesty, and respectful treatment of others, as well as a willingness to speak up when they see misconduct or have concerns.

Carnival Corporation & plc and Carnival Cruise Line is an equal employment opportunity/affirmative action employer.

In this regard, it does not discriminate against any qualified individual on the basis of sex, race, color, national origin, religion, sexual orientation, age, marital status, mental, physical or sensory disability, or any other classification protected by applicable local, state, federal, and/or international law.

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