Jobs / United States / Cambridge Mobile Telematics INC
Principal Site Reliability Engineer, Machine Learning
Cambridge Mobile Telematics INC · 🇺🇸 Cambridge, MA
Sponsorship verdict
Sponsorship possible
One solid signal, not two — worth applying, and worth asking about sponsorship early.
- Employer is on a government sponsor recordThe US Department of Labor certified 12 H-1B/E-3 labor condition applications for this employer between Oct 2025 and Jun 2026 (latest May 2026) — the step every H-1B hire needs first. USCIS also records 4 H-1B approvals in FY2023. Source: LCA disclosure data (US Department of Labor (OFLC)).
- The posting doesn’t mention sponsorshipSilence isn’t a refusal — ask the recruiter before investing much time.
- No salary bar for this routeH-1B has no fixed salary bar: the employer must pay at least the prevailing wage for the role and area. Cap-subject employers enter a lottery weighted by wage level. Source: https://www.federalregister.gov/documents/2025/12/29/2025-23853/weighted-selection-process-for-registrants-and-petitioners-seeking-to-file-cap-subject-h-1b, rules effective 2026-02-27.
- What Cambridge Mobile Telematics INC paid sponsored hires in similar roles3 certified filings for “Software Engineer II, Full Stack” (Software Developers) in MA: $116k–$178k, median $155k. Most were filed at wage level I (33%) — 1 lottery entry, ≈15% projected selection odds for cap-subject employers. Source: US Department of Labor LCA disclosure data (Oct 2025 – Jun 2026).
- Confirmed live todayWhen a source last listed this job as open.
US H-1B: cap-subject employers enter a lottery weighted by wage level — Level I gets 1 entry, Level IV gets 4 (DHS projected selection odds ≈15% at Level I to ≈61% at Level IV). Universities and non-profit research employers are cap-exempt. The $100,000 fee for new petitions from abroad is currently blocked by a court order (appeal pending).
A verdict summarises public evidence; it is not legal advice and never a guarantee — the employer and the immigration authority decide. Sign in to factor in where you can already work.
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Sponsor Radar — Cambridge Mobile Telematics INC
The US Department of Labor certified 12 H-1B/E-3 labor condition applications for this employer between Oct 2025 and Jun 2026 (latest May 2026) — the step every H-1B hire needs first. USCIS also records 4 H-1B approvals in FY2023. Source: LCA disclosure data (US Department of Labor (OFLC)).
Past sponsorship or register membership never guarantees sponsorship for this vacancy or for you. Full Sponsor Radar for Cambridge Mobile Telematics INC →
About the role
CMT is looking for a Principal Site Reliability Engineer I, Machine Learning to help us change the world. CMT has helped protect over 65 million drivers and prevent over 126,000 crashes worldwide. We build AI to solve some of the most difficult challenges in mobility — understanding and reducing risk, detecting crashes, and getting people life-saving help. The problems are hard. The impact is real. No matter your role, your work will matter at CMT. CMT is looking for a collaborative, customer-committed, and creative SRE team member who wants to join us in making roads safer by making drivers better! This is a hybrid role based in Cambridge, MA, with two days per week onsite. Responsibilities: • Use independent judgment and discretion to own SLOs, error budgets, and the operational health of Ray clusters running on AWS EKS and Databricks workloads on AWS EC2 across multiple accounts and regions • Maintain the observability of uptime, availability, and scalability of EKS Ray and Databricks workloads using CloudWatch and Datadog, including defining alerting that maps to SLOs • Operate and tune EKS Ray workloads at scale including autoscaling, GPU scheduling, and automated failure recovery • Manage Databricks on AWS including workspace administration, cluster policies, Unity Catalog, job orchestration, and IAM Roles and Policies • Maintain ongoing cost visibility, cost optimization, and capacity planning across EC2 and EKS workloads, including through the use of On Demand Capacity Reservations and Spot lifecycle • Perform ongoing maintenance of the underlying EC2 and EKS infrastructure, including regular security updates and operating system upgrades • Codify everything as infrastructure-as-code using Terraform and CI/CD pipelines, enabling updates through Pull Requests with approval workflows, while also automating maintenance tasks to reduce toil • Lead incident response for Data Science and Machine Learning platform outages, run blameless postmortems, and drive systemic remediation, including participating in an on-call rotation • Complete any additional tasks as they arise Qualifications: • Bachelor’s degree or equivalent years of experience and/or certification in a related field • 7+ years working in Site Reliability Engineering or Information Technology • Design and document systems, including writing and reviewing code, to automate away problems within your team’s domain • Intermediate to expert experience deploying and maintaining AWS services such as EC2, ECS, EKS, SQS, Lambda, Dynamo, RDS/Aurora, S3, and IAM • Intermediate to expert experience monitoring services and applications using tools such as CloudWatch Metrics, CloudWatch Logs, and Datadog, including defining and configuring alerts and SLO reports • Intermediate to expert experience maintaining the uptime and scalability of AWS compute services used for Machine Learning and Data Science workloads, specifically EC2 and EKS • Intermediate to expert coding skills in at least one programming language; we work primarily in Python • Intermediate to expert experience using Infrastructure as Code platforms and CI/CD pipelines, specifically Terraform, to manage AWS infrastructure and services • In-depth knowledge & experience with Linux operating systems (Amazon Linux, Ubuntu) on EC2 and Docker / Kubernetes • Experience with leading projects in system design, architecture changes, and technology selection • Ability to work a hybrid schedule from our Cambridge, MA office two days per week Compensation and 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