Senior Security Engineer

Trulyyy; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Trulyyy is seeking a hands-on Security Engineer to secure the frontier AI platform, multi-cloud infrastructure, and execution environments at scale. The role focuses on designing secure runtimes, enforcing tool authorization, and defending against prompt injection within a global cloud setup.

Ideal candidates have 6+ years of security engineering experience, strong Python/Go skills, and familiarity with AI security defenses and recognized security certifications. Shortlisted applicants only.

Qualifications

• Bachelor's degree in CS, cybersecurity, IT or related field.
• 6+ years in product security, AppSec, cloud security or offensive security.
• Strong coding skills in Python, Go or modern backend languages.

Responsibilities

• Design security boundaries for autonomous runtimes including tool call authorization and sandboxing.
• Operate security controls across multi-cloud environments (AWS/GCP), IAM and network security logging.
• Conduct threat modeling early in SDLC, develop incident playbooks and lead root-cause investigations.

Skills

Python

Go

Security tooling

Education

Bachelor's degree in Computer Science, Cybersecurity, Information Technology, or a related technical field

Job description

About the Role

Join a global leader in AI innovation building general-purpose autonomous AI agents that bridge human intent and real-world execution. We are looking for a hands-on Security Engineer to secure the frontier AI platform, multi-cloud infrastructure, and execution environments at scale.

Key Responsibilities

• Design and build security boundaries for autonomous agent runtimes- focusing on tool call authorization, execution sandboxing, sensitive data protection, and prompt injection defenses.
• Implement and operate security controls across global cloud environments (AWS/GCP), covering IAM, workload isolation, secrets management, and network security logging.
• Conduct threat modeling on new features early in the SDLC, develop incident playbooks, and lead technical root-cause investigations.

Requirements

• Bachelor’s degree in Computer Science, Cybersecurity, Information Technology, or a related technical field.
• 6+ years of hands-on security engineering experience in product security, AppSec, cloud security, or offensive security.
• Strong proficiency in developing security tooling or automation scripts using Python, Go, or modern backend languages.
• Experience with LLM/AI security defenses (sandboxing, tool authorization, prompt injection), recognized contributions to bug bounty programs (e.g., HackerOne), or certifications such as OSCP, OSWE, or AWS Security Specialty.

Regrettably, only shortlisted candidates will be notified.

Please note that data provided is for recruitment purposes only.

Business Registration No.: 202004228R | License No.: 20S0118 | EA Registration No.: R2210710