Cambridge Mobile Telematics
Principal Security Engineer, Cloud & Infrastructure
Cambridge, MA · Principal
Stay score
odds of building a lasting career here
Sponsors, but it's cap-subject — you still face the weighted lottery (~61% per draw at Level IV). Good if you win; have a cap-exempt backup on your list.
Lottery odds assume a STEM candidate.
Personalize to your clock →H-1B wage level
the lottery is wage-weighted — each level is one more entry
$15,660 more — $186,160 — moves this role to Level IV and 4 lottery entries. That figure is inside the range the employer already advertised.
Based on the DOL prevailing wage for this occupation and worksite, a base salary of $186,160 would place this position at wage Level IV. That figure is within the posted range, and I'd like to target it. This role classifies under "Software Developers" for prevailing-wage purposes.
DOL prevailing wage, 2026-27 wage year · Software Developers (15-1252) · Boston-Cambridge-Newton, MA-NH. Wage level is derived by USCIS from the offered wage, occupation and worksite; the occupation shown is inferred from the job title.
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from this employer's Department of Labor filings
Files H-1B transfers
Sourced from Department of Labor LCA, PERM and prevailing-wage disclosure data. Employer matching is by name, so figures may be split across an employer's legal entities. Absence of a filing means none appears in our copy of the data, not that none exists.
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About the role
- You'll stay hands-on with architecture while shaping security strategy across the organization through technical leadership, collaboration, and sound engineering judgment rather than people management.
- CMT is looking for a Principal Security Engineer I, Cloud & Infrastructure to help us change the world.
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
- Own the AppSec and Product Security roadmap, including technology strategy and prioritization
- Support customer and partner security reviews and mentor engineers on secure design
- Move fast, own outcomes, do work that matters
- CMT enables partners to measure risk, detect crashes, provide life-saving assistance, and streamline claims.
Requirements
- 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 - fluency in the fundamentals, including cloud networking, cloud firewalls, security groups, and IAM policies
- Experience with infrastructure as code, build pipelines, and cloud platform security
- 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
- Working knowledge of AI/ML and LLM security, including secure AI adoption
- Experience with mobile SDK security, reverse engineering, and anti-tampering
- Familiarity with data-intensive architectures and ML-driven products
- Experience in telematics, IoT, connected vehicles, fintech, or other high-trust industries
- Proven ability to provide technical leadership and drive security initiatives through influence
- Experience securing products that process sensitive personal data and support regulatory requirements
- Excellent written and verbal communication skills
- Experience developing AI governance or secure AI adoption programs
Skills
- CMT has helped protect over 65 million drivers and prevent over 126,000 crashes worldwide.
- The problems are hard.
- The impact is real.
Compensation
- Unlimited PTO, flexible scheduling, competitive salary, annual performance bonus, RSUs, and full benefits including medical, dental, vision, and 401k match
- The base salary range for this position is: $170,500 to 213,200. This range is specifically for Cambridge, MA
- To date, CMT's technology has helped prevent over 126,000 crashes worldwide.
- Base Salary Range
- The base salary range for this position is: $170,500 to 213,200.
Benefits
- Fair and competitive salary based on skills and experience, and annual performance bonus
- Equity may be awarded in the form of Restricted Stock Units (RSUs)
- Medical, Dental, Vision and Life Insurance, matching 401k, short-term & long-term disability and parental leave
- Unlimited Paid Time Off including vacation, sick days & public holidays
- Flexible scheduling and work from home policy depending on role and responsibilities
Company info
- Cambridge Mobile Telematics (CMT) is the world's largest telematics and AI company for safer mobility.
- Its mission is to make the world's roads and drivers safer.
- The company's AI-driven platform, DriveWell Fusion®, proactively identifies and reduces driving risk, leading to fewer crashes and injuries.
- To date, CMT's technology has helped prevent over 126,000 crashes worldwide.
- Headquartered in Cambridge, MA, CMT operates globally with offices in Budapest, Hungary; Chennai, India; Seattle, Washington; Tokyo, Japan; and Zagreb, Croatia.
- Learn more at www.cmt.ai.
- Be part of the team inventing the future of mobility and road safety
Equal opportunity
- Commitment to Diversity and Inclusion:
This listing is sourced directly from Cambridge Mobile Telematics's careers page and normalized into a canonical job model.