AI Security Engineer (Offensive & Defensive)

Coins.Ph; Manila; On-site; PHP 1,800,000 - 3,000,000; Full time

Job summary

Coins Philippines, the pioneer crypto brand, seeks a security-focused engineer with 3+ years in offense/defense, including LLM security. You will design AI-based detection tools, perform penetration testing, and contribute to a security operations platform.

Work on cloud-native security across K8S, Docker, and IAM, while collaborating with cross-functional teams to strengthen customer trust as Coins expands beyond APAC. This is a hands-on role with opportunities for impact and growth.

Qualifications

• 3+ years in security offense/defense (penetration testing/red team).
• 1+ years in LLM security offense/defense; practical red team experience preferred.
• Familiar with cloud-native stacks and security (IAM, network isolation).

Responsibilities

• Execute AI agent security reviews and penetration testing across platforms.
• Design and develop AI-based security detection tools and automated alert triage.
• Build agent behavior auditing, anomaly detection, and defense countermeasures for real business scenarios.
• Assess attack surfaces in cloud-native environments (K8S, Docker, cloud) and craft defense-in-depth strategies.

Skills

Penetration testing

Red team

LLM security

Cloud security

Kubernetes security

Docker security

AI security frameworks

Programming (Python/Go/C++)

Tools

LangChain

Kubernetes (K8S)

Docker

AWS

Job description

Join the Pioneer Crypto Brand in the Philippines!

Coins is the most established crypto brand in The Philippines and has gained the trust of more than 18 million users. Through the easy-to-use mobile app, users can buy and sell a variety of different cryptocurrencies and access a wide range of financial services.

Coins is fully regulated by the Bangko Sentral ng Pilipinas (BSP) and is the first ever crypto-based company in Asia to hold both Virtual Currency and Electronic Money Issuer licenses from a central bank.

• Responsible for AI Agent security review and penetration testing, including defense design and implementation against emerging threats such as AI tool misuse, context poisoning, various forms of data/prompt poisoning, and prompt injection.
• Responsible for designing and developing AI-based automated security detection tools, enabling automated alert triage, attack attribution, and improved security operations efficiency.
• Participate in building Agent behavior auditing and anomaly detection systems, identifying abnormal behavior chains during Agent runtime, constructing an AI-driven security operations platform, and exploring, designing, and implementing defense and countermeasure solutions based on real business scenarios.
• Combine security risks of cloud-native infrastructure (K8S, Docker, cloud services) to assess the attack surface of Agent runtime environments and design defense-in-depth solutions.

1. At least 3+ years of security offense/defense experience (penetration testing/red team practice), with 1+ years of experience in LLM (large model) security offense/defense; extensive hands-on red team experience preferred.
2. Familiar with network architecture and cloud-native technology stacks, including K8S, Docker container security, and cloud security (IAM, network isolation, cloud-native threat models, etc.), with the ability to assess security risks in complex infrastructure.
3. Possess practical Agent development capability, able to independently build/modify AI Agents (e.g., based on frameworks such as LangChain), as well as hands-on offensive capability against Agents (practical construction and validation of attack techniques such as tool misuse, prompt injection, context poisoning).
4. Familiar with security frameworks such as OWASP Top 10 for LLM and MITRE ATT&CK, familiar with common AI attack techniques, adversarial logic, and defense solutions, with a strong passion for AI security.
5. Proficient in at least one programming language such as Python/Go/C++, with the ability to develop security offense/defense tools or perform deep secondary development on open-source security platforms.

Nice to Have

1. Familiar with mainstream AI frameworks (PyTorch, TensorFlow, LangChain, etc.), with practical experience in local deployment and optimization of large language models.
2. Hands-on cloud security (AWS) experience or related certifications.

Meaningful Collaborations

The successful candidate will work cross-functionally with other relevant teams to carry out implementations that will improve and create an impact on customer experience.

Scalable Growth

Be part of a fast-growing organization with the vision to expand its territories outside APAC which will provide opportunities for career advancement.

A Space For Bright Ideas

Let your bright ideas be converted into meaningful changes! Coins culture welcomes new ideas backed up by data to create an impact.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.