Principal Software Engineer, Cloud

Cambridge Mobile Telematics•Cambridge, MA

3d•$168,000 - $210,000•Hybrid

About The Position

CMT is seeking a collaborative, customer-committed, and creative Principal Software Engineer I, Cloud 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. In this role, you will design and implement scalable architectures to reliably collect and manage telematics data from diverse 3rd-party sources including delivery platforms, automotive OEMs, and telematics service providers transforming these complex datasets into unified, actionable insights that power global safety and risk-assessment programs.

Requirements

Bachelor’s degree or equivalent years of experience and/or certification in Computer Science or a related field
7+ years of relevant working experience in web application development, showcasing an exceptional command of programming concepts
Mastery of contemporary HTML/CSS, jQuery, and an in-depth understanding of their application in modern web development
Proficiency in Python and JavaScript/TypeScript, with a demonstrated ability to architect and deliver solutions across the software stack
Expertise in developing, optimizing, and maintaining web applications, APIs, and databases to deliver top-notch performance and functionality
Comprehensive knowledge of relational database systems and their seamless integration into complex software projects
A deep understanding of the intricate workings of web applications, coupled with the ability to optimize performance

Nice To Haves

Strong knowledge in web security and session management
Experience with the AWS ecosystem
Ability to work independently when needed
Ability to learn quickly
Familiarity with modern JS frameworks such as React or Angular
Hands-on experience with network diagnostics, network analytics tools

Responsibilities

Collaborate closely with development teams, product managers, and stakeholders to conceptualize and innovate software solutions
Architect and oversee client-side and server-side systems, setting the technical direction for complex projects
Act as a mentor and technical leader, providing guidance and knowledge transfer to junior and mid-level engineers.
Spearhead the creation of visually appealing front-end applications while pushing the boundaries of user experience design
Manage and optimize high-performance databases and applications, ensuring seamless data flow and system stability
Develop robust APIs that seamlessly integrate with various components of the software ecosystem
Implement rigorous testing procedures to guarantee software responsiveness, scalability, and efficiency
Diagnose, troubleshoot, and execute software enhancements, elevating system performance.
Establish and maintain advanced security protocols and data protection measures to safeguard sensitive information
Lead the development of innovative features and applications with a relentless focus on mobile-responsive design
Complete any additional tasks as they arise

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
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
Recognized innovator in mobility AI, earning top honors including the TIME Industry Leader in AI, a Gold Edison Award, and the Artificial Intelligence Excellence Award for AI for Social Good. CMT is also Great Place to Work Certified
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