Staff AI Security Engineer

Agoda.com; Singapore; On-site; SGD 122,000 - 182,000; Full time

Job summary

Agoda's AppSec Engineering team seeks an AI Security Engineer to build AI-powered security capabilities in a fast-paced DevSecOps environment. You will own production systems and drive secure-by-design practices for AI agents and LLM-powered tooling.

Bring 3+ years SDLC experience in Python/Go/TypeScript, 6+ years in security, and hands-on cloud/LLM security. You will collaborate with product, data, and engineering teams, advance threat modeling, and defend against prompt injection and data

Qualifications

• 3+ years of SDLC experience in Python, Go, TypeScript/Node.js, Kotlin, or similar.
• 6+ years of security engineering, application security, threat modeling, or related areas.
• 2+ years of cloud environments and hands-on experience with LLM-enabled applications, agents, or evaluation pipelines.
• Strong knowledge of OWASP Top 10 vulnerabilities and secure coding practices.

Responsibilities

• Design, build, and operate AI-powered security engineering systems end-to-end in production.
• Build AI-assisted threat modeling for design reviews and high-risk changes.
• Harden AI developer platforms and agent platforms (Cursor, Codex, Claude).
• Lead security design reviews and threat modeling for AI systems and agents.
• Define and implement security controls and guardrails for AI agents.
• Develop defenses against prompt injection and data exfiltration in AI tools.
• Build agentic security tooling to automate AppSec workflows end-to-end.
• Measure and improve the quality of AI security tooling and pipelines.
• Collaborate with product, platform, data, and AI teams as an embedded security owner.
• Stay ahead of AI security research and share learnings across Agoda's engineering community.

Skills

Software engineering

Python

Go

TypeScript/Node.js

Security engineering

Threat modeling

OAuth 2.0/OIDC

Cloud security

LLM security

CI/CD security tooling

AI governance

Tools

Cursor

Codex

Claude

Job description

About Agoda

At Agoda, we bridge the world through travel. Our story began in 2005, when two lifelong friends and entrepreneurs, driven by their passion for travel, launched Agoda to make it easier for everyone to explore the world.

Today, we are part of Booking Holdings [NASDAQ: BKNG], with a diverse team of over 7,000 people from 90 countries, working together in offices around the globe. Every day, we connect people to destinations and experiences, with our great deals across our millions of hotels and holiday properties, flights, and experiences worldwide.

No two days are the same at Agoda. Data and technology are at the heart of our culture, fueling our curiosity and innovation. If you’re ready to begin your best journey and help build travel for the world, join us.

Get to Know Our Team

The Security Department oversees application security, compliance, GRC, and security operations for all Agoda. We are vigilant in ensuring there is no breach or vulnerability threatening our company or endangering our employees in order to keep Agoda safe and protected. This would be a great challenge for those who want to work with the best technology in a dynamic and advanced environment.

The Opportunity

You will be joining the AppSec Engineering team at a pivotal moment: AI is changing both how we defend Agoda and what we need to defend. As an AI Security Engineer, you will build AI-powered security engineering capabilities that let a lean team secure a fast paced DevSecOps environment where code ships continuously, and you will make sure the AI systems and agents Agoda builds are secure by design. This is a builder's role with a primary focus on security engineering and threat modeling: you will ship and own production systems, not just own one-off scripts.

What You Will Do

• Design, build, and operate AI-powered security engineering systems, such as LLM-driven secure code review, finding triage and de-duplication, and automated fix suggestions, and own them end-to-end in production.

• Build AI-assisted threat modeling that scales our design reviews: drafting threat models from design docs and architecture, flagging high-risk changes, and routing the reviews that need a human in the room.

• Harden the AI developer platforms our engineers use every day, such as Cursor, Codex and Claude, always-on agent platforms including MCP/plugin governance and policy controls.

• Lead security design reviews and threat modeling for the AI systems and agents built at Agoda, including LLM-integrated products, RAG pipelines, MCP/tool integrations, and internal agentic platforms.

• Define and implement security controls and guardrails for AI agents: agent identity and delegated credentials, least-privilege tool access, sandboxing, human-in-the-loop approval for risky actions, and audit logging.

• Develop defenses against AI-specific threats such as prompt injection, data exfiltration through tools, insecure output handling, and model and supply chain risks, and turn them into secure-by-default patterns and standards for engineering teams.

• Build agentic security tooling that automates AppSec workflows end-to-end, from intake and risk scoring to ticketing and remediation tracking, keeping outcomes measurable, auditable, and safe.

• Measure and continuously improve the quality of our AI security tooling (precision, coverage, false-positive rate) by tuning models, prompts, and pipelines.

• Partner with product, platform, data, and AI engineering teams as an embedded security owner, and work closely with AppSec analysts to turn their findings into scalable, automated fixes.

• Stay ahead of AI security research and industry frameworks, and share what you learn across Agoda's engineering community.

What You Will Bring

• Software engineering and production systems: Strong software engineering foundations, with at least 3 years of SDLC experience in Python, Go, TypeScript/Node.js, Kotlin, or similar, and a track record of building and operating production quality systems.

• Security expertise: At least 6 years of relevant experience across security engineering, application security, threat modeling, secure coding, identity and access management, software development, or cloud security. Strong knowledge of secure design for distributed systems and microservices, OWASP Top 10 vulnerabilities and code level remediation, OAuth 2.0/OIDC, service to service authentication, and least privilege.

• Cloud and AI security: At least 2 years of experience with public or private cloud environments, and 1 year of hands on experience building LLM enabled applications, agents, tool calling/MCP, RAG, or evaluation pipelines. Understand key AI and LLM risks, including prompt injection, excessive agency, sensitive data leakage, and insecure output handling, with familiarity with OWASP Top 10 for LLM Applications or MITRE ATLAS.

• Security mindset: Applies an analytical, offensive security mindset to identify and understand how vulnerabilities are discovered and exploited. Uses AI thoughtfully as part of their work, exercises autonomy in ambiguous problem spaces, and communicates technical and nontechnical concepts effectively to diverse audiences.

It is Great if You Have

• Experience securing agentic, code-execution, or LLM-integrated systems in production (sandboxing, isolation, guardrails).

• Experience building developer-facing security tooling or security automation integrated into CI/CD.

• Experience with LLM evaluation or red-teaming of AI systems, or contributions to AI security research, open-source tools, or community frameworks.

• Familiarity with AI governance and risk frameworks such as NIST AI RMF or ISO/IEC 42001.

Salary and Location

This role is based in Singapore.

Monthly base salary: SGD 10,900-16,300

Equal Opportunity Employer

At Agoda, we pride ourselves on being a company represented by people of all different backgrounds and orientations. We prioritize attracting diverse talent and cultivating an inclusive environment that encourages collaboration and innovation. Employment at Agoda is based solely on a person’s merit and qualifications. We are committed to providing equal employment opportunity regardless of sex, age, race, color, national origin, religion, marital status, pregnancy, sexual orientation, gender identity, disability, citizenship, veteran or military status, and other legally protected characteristics.

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