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.
CMT is looking for a collaborative, customer-focused, and creative Principal Software Engineer I to develop a high-performance mobile application framework that powers on-device machine learning models, enabling advanced data processing on Android and iOS platforms.
Responsibilities:
- As part of a small, fast-paced team, tackle complex problems and turn them into effective business solutions.
- Analyze and convert business and functional specifications, as well as change requests, into actionable technical specifications for implementation.
- Independently break down complex technical requirements into manageable, implementable components; develop high-performance software solutions that are maintainable, scalable, reliable, and testable.
- Participate actively in code and design reviews to ensure quality and alignment with best practices.
- Adhere to company-defined development and operational standards and processes.
- Take on additional tasks as they arise, supporting team and project needs.
Qualifications:
- Bachelor’s degree in Computer Science, Electrical Engineering, or a related technical field.
- 7+ years of relevant working experience
- Experience developing platform-independent software libraries in “modern” C++ (C++11 or later dialects)
- Experience optimizing code for CPU and memory efficiency
- Excellent communication and collaboration skills
- Customer obsessed, demonstrates initiative, has a learning mindset, takes ownership
- Proven ability to deliver results
- An analytical mindset
- Experience with real-time streaming systems
Nice-to-Haves:
- Python knowledge, especially with libraries used by data scientists (NumPy, Pandas, SciPy, etc.)
- Familiarity with Machine-Learning libraries (PyTorch, CoreML, TensorFlow, etc.)
- Experience in Android development: Android NDK, Java, Kotlin
- Experience in iOS development: Swift, Objective-C
- Experience in Python extension development such as Pybind
- Signal processing expertise
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
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.”
Life at Cambridge Mobile Telematics
Cambridge Mobile Telematics (CMT) pioneered telematics for usage-based and behavior-based programs making roads and drivers safer around the world. Founded in 2010 by two MIT professors, CMT's accomplished team of expert scientists and experienced entrepreneurs developed DriveWell, an advanced mobile-sensing and big data platform delivering an end-to-end smartphone telematics solution. DriveWell provides valuable feedback to users, helping them to improve driving performance and become more aware of unsafe behaviors.
DriveWell is the first telematics platform in the industry to provide both traditional vehicle-centric, usage-based-insurance (UBI) and driver-centric, behavior-based insurance (BBI) solutions. Through the DriveWell program, CMT's partners can easily measure mileage, time of day, roadways and risky driving behaviors - giving them a complete picture of every trip and allowing them to segment high-risk vs low-risk customers easily.
CMT has a proven track record of changing driver behavior: an average reduction of 35% in phone distraction, 20% in hard braking, and 20% in at-risk speeding all within 30 days of using the program. With DriveWell, users become safer drivers, resulting in fewer crashes and less-costly claims. The average user sustains a 25% reduction in phone usage even after 200 days, and some CMT's insurance partners report as much as 47% reduction in total claims costs, based on studies of more than 100,000 drivers.
For more information about DriveWell, please visit: www.cmtelematics.com/drivewell
Thrive Here & What We ValueCommitment 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. | 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 | 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 | CMT will do all that is possible to support our employees and create a positive and inclusive work environment for all!</s> | Additional Health Insurance | CMT Europe Wellness Reimbursement Program | Voluntary Pension Fund | Educational Assistance Program | Unlimited Annual Leave (Paid Time Off) | Global company & public holidays | Sick Leave | 1. Collaborative Environment | 2. CustomerCommitted | 3. Creative IoT Team Member | 4. Positive and Inclusive Work Environment | 5. Commitment to Diversity and Inclusion</s> | Extensive wellness, education and employee assistance programs | Flexible scheduling and work from home policy depending on role and responsibilities</s> | We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status or disability state.</s> | 1. Commitment to diversity and inclusion | 2. Wellness, education, and employee assistance programs | 3. Unlimited paid time off including vacation, sick days & public holidays | 4. Flexible scheduling and work from home policy depending on role and responsibilities | 5. Extensive wellness, education, and employee assistance programs</s> | 1. Collaborative, customercommitted, and creative work environment | 2. Mission to make roads safer by making drivers better | 3. Headquartered in Cambridge, MA, with offices in Budapest, Chennai, Seattle, Tokyo, and Zagreb | 4. Commitment to creating a positive and inclusive work environment for all | 5. Extensive education and employee assistance programs</s> | 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</s> | 5. Extensive 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 Health & Wellness)</s> | 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.</s> | 1. Commitment to Diversity and Inclusion: At CMT, we believe the best ideas come from a mix of backgrounds and perspectives. | 2. Fair and competitive salary based on skills and experience | 3. Equity may be awarded in the form of Restricted Stock Units (RSUs) | 4. Medical Benefits (Health insurance, Personal accident insurance, Group term life insurance), gratuity, parental leave, sick leave and public holidays | 5. Flexible scheduling and work from home policy depending on role and responsibilities | 6. 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 | 7. CMT will do all that is possible to support our employees and create a positive and inclusive work environment for all!</s> | 2. Flexible scheduling and work from home policy depending on role and responsibilities | 3. 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</s> | 2. Wellness, Education and Employee Assistance Programs | 4. Flexible scheduling and work from home policy depending on role and responsibilities.</s> | 2. Customer Obsessed | 3. Proven Ability to Deliver Results | 4. Analytical Mindset | 5. Commitment to Learning</s> | 4. Private healthcare | 5. Life insurance | 6. Parental leave | 7. Flexible scheduling and work from home policy depending on role and responsibilities | 8. 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</s> | 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. - Fair and competitive salary based on skills and experience, and annual performance bonus | 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.</s> | Extensive wellness, education and employee assistance programs</s> | Focus on Creating an Inclusive Work Environment that Encourages a Diversity of Background and Thought to Produce the Best Products and Services within Our Industry | 5. Extensive perks such as joining one of our many employee resource groups</s> | Private healthcare, Life insurance | Unlimited Paid Time Off (Vacation - 25 days minimum, sick days & public holidays) | Work from home depending on role and responsibilities | Flexible scheduling options depending on role and responsibilities | Additional Perks: Feel great working to improve road safety around the world! World class team and cheerful atmosphere. 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</s> | 1. Commitment to creating a positive and inclusive work environment for all employees | 2. Belief that the best ideas come from a mix of backgrounds and perspectives | 3. Active seeking of candidates from all backgrounds to join their growing team | 4. Equalopportunity employer committed to diversity and inclusion</s> | 1. Fair and competitive salary based on skills and experience | 2. Medical Benefits (Health insurance, Personal accident insurance, Group term life insurance), gratuity, parental leave, sick leave and public holidays | 3. Flexible scheduling and work from home policy depending on role and responsibilities | 4. 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 | 5. Commitment to Diversity and Inclusion: At CMT, we believe the best ideas come from a mix of backgrounds and perspectives. We are an equalopportunity employer committed to creating a workplace and culture where everyone feels valued, respected, and empowered to bring their unique talents and perspectives.</s> | 3. Employees are eligible for flexible allowances which includes Leave Travel Assistance, Telephone/Mobile Expenses, Professional development expenses, Meals Coupon, Vehicle Reimbursement | 5. 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 | 6. Commitment to Diversity and Inclusion: At CMT, we are intensifying our commitment to provide opportunities and career growth to the underrepresented. We are focused on creating an inclusive work environment that encourages a diversity of background and thought to produce the best products and services within our industry. | 7. CMT is an equal opportunity employer and strives to create an inclusive and diverse environment that enriches our employees’ lives in and outside of work.</s> | Demonstrates initiative, has a learning mindset, takes ownership | Strong experience with system design | 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 Health & Wellness | Additional perks such as joining employee resource groups</s>
