Cambridge Mobile Telematics

Senior Site Reliability Engineer, SecOps

Cambridge Mobile Telematics • $118K — $147K *
Cambridge, MA 02139In-Person
Information Technology
Less than 5 years of experience
Today
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Job Overview by Ladders

Qualifications

  • Bachelor's or equivalent experience in a related field
  • 4+ years in Site Reliability Engineering or IT
  • Proficient in automating problems through coding
  • Expertise in AWS services like EC2, Lambda, and IAM
  • Experience with monitoring tools such as CloudWatch and Datadog
  • Hands-on with AWS security controls and tooling
  • Competency in Terraform for Infrastructure as Code
  • Strong Linux and Docker experience
  • Collaboration experience with security or engineering teams

Responsibilities

  • Implement security tooling and controls in AWS using independent judgment
  • Manage IAM roles, policies, and account-level guardrails in AWS
  • Remediate cloud security issues tracking defined SLAs
  • Oversee the security telemetry pipeline and log management
  • Develop preventive controls like SCPs and configuration rules
  • Establish data protection measures including encryption and access standards
  • Codify infrastructure as code using Terraform and CI/CD pipelines
  • Develop secure Terraform modules for teams and participate in threat modeling
  • Engage in incident response and contribute to postmortems

Benefits

  • Equity in form of RSUs
  • Comprehensive medical, dental, and vision insurance
  • Unlimited Paid Time Off and flexible scheduling
  • Matching 401k and parental leave
  • Innovative workplace focused on impact and mobility safety
  • Team-driven culture with direct access to leadership
Full Job Description
Responsibilities:
  • Use independent judgment and discretion to implement security tooling and controls in AWS as defined by the Security Engineering team, including deployment, configuration, agent coverage, and ongoing tooling health
  • Implement IAM Roles and Policies, account-level guardrails, and secrets management in AWS in line with Security Engineering standards
  • Remediate vulnerability, cloud security posture, and compliance findings across the AWS estate, tracking work to the remediation SLAs defined by the Security Engineering team
  • Own the security telemetry pipeline - org-wide CloudTrail, GuardDuty, Security Hub, AWS Config, VPC Flow Logs, and application/audit logs - including coverage validation, retention and immutability requirements, routing into Lacework and Datadog, and managing ingest/retention cost
  • Implement and maintain preventive controls - SCPs/RCPs, permission boundaries, Config rules and conformance packs, IaC policy-as-code in CI, and secret scanning - including drift detection, auto-remediation, and a documented exception/waiver process with expiry
  • Implement network and data protection controls: security group and egress baselines, VPC segmentation, KMS key lifecycle and rotation, encryption-at-rest/in-transit standards, certificate lifecycle, and public-exposure prevention (S3 Block Public Access, IAM Access Analyzer external findings).
  • 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
  • Provide secure-by-default Terraform modules and self-service paved paths so product teams inherit controls; consult on design reviews and threat models; act as the translation layer between Security Engineering standards and platform/application reality, feeding back where standards are impractical.
  • Participate in incident response for security events, contribute to blameless postmortems and 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
  • 4+ years of experience working in Site Reliability Engineering or Information Technology
  • Write and review 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 implementing and maintaining security controls and tooling in AWS, such as IAM, KMS, Security Hub, GuardDuty, Inspector, and Config
  • Intermediate to expert coding skills in at least one programming language; we work primarily in Python
  • Intermediate to expert experience using AI coding agents (Claude Code) daily for Terraform and Python development, log and finding investigation, and remediation authoring - with the judgment to verify output and keep AI-assisted changes under standard PR and approval controls
  • 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 on ECS / EKS
  • Experience partnering with security or engineering teams to implement and operationalize security requirements

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-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

Base Salary Range
  • The base salary range for this position is: $118,300 to $147,900. This range is specifically for Cambridge, MA

Additional Perks:
  • Work on a mission with real impact: crashes prevented, injuries avoided, lives protected around the world
  • Join an industry leader - 65 million drivers protected, powering 140+ programs across 25 countries
  • Be part of the team inventing the future of mobility and road safety
  • Move fast, own outcomes, do work that matters
  • High ownership, small teams, and direct access to leadership - no layers between your work and its impact
  • Unlimited PTO, flexible scheduling, competitive salary, annual performance bonus, RSUs, and full benefits including medical, dental, vision, and 401k match
  • Summer Fridays provide team members with half days to recharge
  • Join one of our employee resource groups: Black, AAPI, LGBTQIA+, Women, Book Club, and Health & Wellness
  • Comprehensive wellness, education, and employee assistance programs

About Cambridge Mobile Telematics

Cambridge Mobile Telematics (CMT) is a technology company that provides mobile telematics and analytics solutions for insurers, rideshares, and fleets. The company's platform uses sensors and mobile applications to collect data on driving behavior, which is then analyzed to provide insights into risk and safety. CMT's solutions are used by insurance companies to offer usage-based insurance (UBI) policies, by rideshare companies to monitor driver behavior and improve safety, and by fleets to optimize operations and reduce risk. The company was founded in 2010 and is headquartered in Boston, MA.
Learn more about Cambridge Mobile Telematics
Size
201 employees
Industry
Enterprise Technology
Founded
2010
* Ladders Estimates

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