Principal Software Engineer, Backend

Cambridge Mobile Telematics (CMT) is the world’s largest telematics service provider. Its mission is to make the world’s roads and drivers safer. The company’s AI-driven platform, DriveWell Fusion®, gathers sensor data from millions of IoT devices — including smartphones, proprietary Tags, connected vehicles, dashcams, and third-party devices — and fuses them with contextual data to create a unified view of vehicle and driver behavior. Auto insurers, automakers, commercial mobility companies, and the public sector use insights from CMT’s platform to power risk assessment, safety, claims, and driver improvement programs. Headquartered in Cambridge, MA, with offices in Budapest, Chennai, Seattle, Tokyo, and Zagreb, CMT measures and protects tens of millions of drivers across the world every day. 

As a Principal Software Engineer at CMT on the Trip Processing team, you will be responsible for collaboratively delivering technical solutions to the heart of our state-of-the-art telematics pipeline. You will work closely with product and research teams to design, develop, and execute new features and improvements, mentor junior engineers, and continuously improve our codebase. Your role will be pivotal in maintaining high standards of software quality to meet the needs of our insurer customers. 

CMT is looking for a collaborative, customer-committed, and creative Principal Software Engineer II, Backend who wants to join us in making roads safer by making drivers better! 

Responsibilities: 

• Participate throughout the planning process, collaborating with product managers, data scientists, and fellow engineers to balance technical feasibility with customer needs 


• Implement and enhance solutions for telematics insights enabled by our processing pipelines


• Identify and measure key production performance metrics, ensuring scalability and efficiency


• Design, implement, and maintain automated tests for telematics solutions, ensuring safe delivery of features and fixes 


• Ensure high bar for quality within our sphere of influence 


• Provide expert guidance on cloud software architecture 


• Keep the codebase healthy amidst increasing complexity 


• Mentor junior engineers as needed 


• Complete any additional tasks as they arise 

Qualifications: 

• Bachelor’s degree or equivalent years of experience and/or certification in Computer Science, Engineering, or related field 


• 9+ years of relevant professional experience 


• Proven experience with development at scale 


• Fluency in at least one programming language with ability to learn


• Python, optionally C++ 


• Experience with Continuous deployment, and test-driven development (TDD) 


• Experience with relational database (RDBMS) schema design 


• Comfortable with AWS or similar services 


• EC2, S3, Lambda, SNS, SQS, RDS (Postgres), Dynamo 


• Terraform, Terragrunt 


• Knowledgeable of containerization technologies (specifically Docker)

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: $167,200 to $209,000. This range is specifically for Cambridge, MA

Additional Perks: 

• Feel great working to improve road safety around the world! 


• Join one of our many employee resource groups including Black, AAPI, LGBTQIA+, Women, Book Club and Health & Wellness 


• Extensive wellness, education and employee assistance programs 


• CMT will do all that is possible to support our employees and create a positive and inclusive work environment for all!

Commitment to Diversity and Inclusion: 

At CMT, we believe the best ideas come from a mix of backgrounds and perspectives. 

We are an equal-opportunity employer committed to creating a workplace and culture where everyone feels valued, respected, and empowered to bring their unique talents and perspectives. Diversity is essential to our success, and we actively seek candidates from all backgrounds to join our growing team. 

We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status or disability state. CMT is headquartered in Cambridge, MA. To learn more, visit www.cmtelematics.com and follow us on X @cmtelematics.