Engineer, AI Prompt Security

About the position

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.

Responsibilities

  • 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.

Requirements

  • 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.
  • 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.
  • 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.

Nice-to-haves

  • Master's degree

Benefits

  • Annual cash bonus program
  • Cost-effective medical, dental and vision plans
  • Employee Assistance Program and other mental health resources
  • Company paid term life insurance and disability coverage
  • 401(k) plan that includes a company match
  • Employee Stock Purchase plan
  • Holidays – All full-time and part-time with benefits employees receive days off for 8 company-wide holidays, plus 2 additional floating holidays
  • Vacation Time
  • Sick Time
  • 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
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Common Interview Questions And Answers

1. HOW DO YOU PLAN YOUR DAY?

This is what this question poses: When do you focus and start working seriously? What are the hours you work optimally? Are you a night owl? A morning bird? Remote teams can be made up of people working on different shifts and around the world, so you won't necessarily be stuck in the 9-5 schedule if it's not for you...

2. HOW DO YOU USE THE DIFFERENT COMMUNICATION TOOLS IN DIFFERENT SITUATIONS?

When you're working on a remote team, there's no way to chat in the hallway between meetings or catch up on the latest project during an office carpool. Therefore, virtual communication will be absolutely essential to get your work done...

3. WHAT IS "WORKING REMOTE" REALLY FOR YOU?

Many people want to work remotely because of the flexibility it allows. You can work anywhere and at any time of the day...

4. WHAT DO YOU NEED IN YOUR PHYSICAL WORKSPACE TO SUCCEED IN YOUR WORK?

With this question, companies are looking to see what equipment they may need to provide you with and to verify how aware you are of what remote working could mean for you physically and logistically...

5. HOW DO YOU PROCESS INFORMATION?

Several years ago, I was working in a team to plan a big event. My supervisor made us all work as a team before the big day. One of our activities has been to find out how each of us processes information...

6. HOW DO YOU MANAGE THE CALENDAR AND THE PROGRAM? WHICH APPLICATIONS / SYSTEM DO YOU USE?

Or you may receive even more specific questions, such as: What's on your calendar? Do you plan blocks of time to do certain types of work? Do you have an open calendar that everyone can see?...

7. HOW DO YOU ORGANIZE FILES, LINKS, AND TABS ON YOUR COMPUTER?

Just like your schedule, how you track files and other information is very important. After all, everything is digital!...

8. HOW TO PRIORITIZE WORK?

The day I watched Marie Forleo's film separating the important from the urgent, my life changed. Not all remote jobs start fast, but most of them are...

9. HOW DO YOU PREPARE FOR A MEETING AND PREPARE A MEETING? WHAT DO YOU SEE HAPPENING DURING THE MEETING?

Just as communication is essential when working remotely, so is organization. Because you won't have those opportunities in the elevator or a casual conversation in the lunchroom, you should take advantage of the little time you have in a video or phone conference...

10. HOW DO YOU USE TECHNOLOGY ON A DAILY BASIS, IN YOUR WORK AND FOR YOUR PLEASURE?

This is a great question because it shows your comfort level with technology, which is very important for a remote worker because you will be working with technology over time...

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