Security Engineer

Position: Security Engineer Engineering Security 5 Positions Open

Location: Seattle WA (Preferred) / Sunnyvale CA Day 1 Onsite

Experience: 8 Years MUST

Client : Indium

Mandatory Skills : The key focus areas include ERD security and privacy reviews threat modeling and third-party AI Agent security testing

Role Overview

We are looking for Security Engineers to support Engineering Security initiatives across security and privacy reviews threat modeling and third-party AI Agent security testing.

The selected engineers will work closely with engineering security privacy and third-party teams to identify security risks conduct hands-on assessments and provide actionable remediation guidance.

Key Responsibilities

The selected resources will provide immediate execution capacity across ERD reviews Threat Modeling and third-party AI Agent security testing. Core responsibilities include:

1. Conduct security and privacy design reviews of services applications APIs engineering proposals and AI integrations; evaluate architecture data flows access controls trust boundaries and proposed safeguards.
2. Perform threat modeling for critical services and AI agents identifying attack surfaces threat scenarios potential attack paths mitigations and residual risk.
3. Assess third-party AI agents through hands-on adversarial security testing including prompt injection tool misuse data access permissions external integrations excessive agency and sensitive-data exposure.
4. Document actionable findings risk assessments supporting evidence and practical remediation guidance; partner with engineering and security teams through remediation and validation.
5. Support repeatable security assessment processes including review checklists threat models test cases reporting templates and AI-assisted/automation workflows where appropriate.

Minimum Qualifications

• 8 years of professional experience in security engineering application security product security offensive security systems architecture or a related technical security field.
• Demonstrated experience reviewing complex technical designs and identifying security risks in applications APIs cloud services microservices or distributed systems.
• Strong knowledge of threat modeling vulnerability classification risk modeling authentication/authorization least privilege and data protection principles.
• Hands-on experience with security testing vulnerability investigation penetration/adversarial testing or validating security controls.
• Ability to communicate technical findings clearly and collaborate directly with engineering security privacy and third-party stakeholders.
• Preferred qualifications include experience assessing AI/LLM agents prompt injection and unsafe tool use privacy design reviews cloud environments and security automation using Python Go Bash or similar languages.

Good to Have

• Demonstrated hands-on penetration testing and vulnerability assessment experience across applications APIs cloud infrastructure and networks including identifying and validating real-world attack paths and providing actionable remediation guidance.