Principal Security Architect – Cloud & AI Infra

Cambridge Mobile Telematics; Cambridge (MA); On-site; USD 130,600 - 163,300; Full time

Benefits offered by this job

RSUs

Medical/Dental/Vision/Life Insurance

401k match

Unlimited PTO

Flexible schedule & WFH

Job summary

Cambridge Mobile Telematics is hiring a Principal Security Architect I, Cloud & Infrastructure to own the security architecture across products, from mobile SDKs to services powering the platform. You will drive architectural guardrails, threat modeling, and secure SDLC adoption while keeping hands‑on architectural work.

This role influences engineering teams and defines AI/ML security standards for safe innovation.

Qualifications

• Bachelor’s degree or equivalent years of experience and/or certification in a related field
• 7+ years of experience in security with deep, hands‑on expertise in application and product security architecture
• Broad AWS expertise — cloud networking, cloud firewalls, security groups, and IAM policies
• Experience with infrastructure as code, build pipelines, and cloud platform security
• Proven ability to provide technical leadership and drive security initiatives through influence
• Strong software engineering foundation with experience reviewing code and system architecture
• Deep knowledge of threat modeling, secure SDLC, OWASP, authentication, cryptography, API security, and mobile security
• Experience securing products that process sensitive personal data and support regulatory requirements
• Working knowledge of AI/ML and LLM security, including secure AI adoption
• Excellent written and verbal communication skills

Responsibilities

• Own the end‑to‑end security architecture for CMT's products, including mobile SDKs, backend services, APIs, data pipelines, and partner integrations
• Define security standards, reference architectures, and engineering guardrails, and drive adoption across teams
• Embed security into the SDLC through threat modeling, secure design reviews, and actionable engineering requirements
• Lead threat modeling and translate findings into prioritized engineering work
• Define application security strategy for testing, secure coding, secrets management, and software supply chain security
• Own security architecture for protecting sensitive driver and location data
• Define security architecture and guardrails for AI/ML features and AI development tools
• Own the AppSec and Product Security roadmap, including technology strategy and prioritization
• Serve as the senior security authority for architecture reviews, risk decisions, and technical guidance
• Support customer and partner security reviews and mentor engineers on secure design
• Complete any additional tasks as they arise

Skills

Security architecture

Threat modeling

Cloud security

AI/ML security

Code reviews

Education

Bachelor’s degree or equivalent

Tools

AWS

Terraform

CI/CD pipelines

Job description

Cambridge Mobile Telematics is hiring a Principal Security Architect I, Cloud & Infrastructure to own the security architecture across products, from mobile SDKs to services powering the platform. You will drive architectural guardrails, threat modeling, and secure SDLC adoption while keeping hands‑on architectural work.

This role influences engineering teams and defines AI/ML security standards for safe innovation.