At a Glance
- Tasks: Lead innovative projects and mentor teams in building scalable full-stack solutions.
- Company: Join CMT, a leader in AI-driven mobility solutions with a mission to save lives.
- Benefits: Enjoy competitive salary, unlimited PTO, flexible work options, and comprehensive health benefits.
- Other info: Be part of a diverse team committed to innovation and excellence.
- Why this job: Make a real impact on road safety while working with cutting-edge technology.
- Qualifications: 7+ years in software engineering with expertise in web technologies and cloud platforms.
The predicted salary is between 60000 - 80000 £ per year.
We are seeking an experienced Principal Software Engineer to lead complex projects and mentor teams in building scalable and reliable full-stack solutions. The person in this role will play a pivotal role in shaping the technical direction of our platform and ensuring its continued success.
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.
Responsibilities:
- Lead the development of critical features and components, ensuring high quality and timely delivery.
- Provide technical guidance and mentorship to engineering teams, fostering a culture of excellence.
- Identify and resolve complex technical challenges, proactively mitigating risks.
- Lead cross-functional technical projects.
- Evaluate and recommend new technologies and approaches to improve system performance and efficiency.
- Design and implement robust, scalable, and maintainable architectures for complex systems.
- Collaborate with product and engineering leaders to define technical roadmaps and strategies.
- Anticipate future technical needs and ensure the platform is prepared for growth.
- Contribute to the development of best practices and standards for software development.
- Ensure the reliability and performance of production systems, providing on-call support as needed.
- Drive continuous improvement initiatives to enhance operational efficiency.
- Troubleshoot and resolve complex production issues, minimizing downtime.
- Follow company-defined development and operational standards and processes.
- Mentor and guide senior and junior engineers, fostering their technical growth.
- Lead code and design reviews, ensuring adherence to best practices.
- Collaborate effectively with cross-functional teams, including product, QA, and operations.
- Participate heavily in the hiring process and improve the hiring process.
- Complete any additional tasks as they arise.
Qualifications:
- Bachelor’s degree or equivalent years of experience and/or certification in a technical field.
- 7+ years of relevant professional experience.
- Deep expertise in web technologies (HTML, CSS, JavaScript, TypeScript) and modern web frameworks (e.g., React, Django).
- Extensive experience designing or developing Restful APIs or web services.
- Strong proficiency in a backend development language (e.g. Python, Java).
- Expertise in cloud platforms (e.g., AWS), including services like EC2, S3, Lambda, SNS, SQS, RDS (Postgres), and NoSQL databases.
- Proven ability to design and implement scalable and resilient systems.
- Strong understanding of software development best practices, including testing, CI/CD, and DevOps.
- Understanding of Agile development methodologies (specifically Scrum).
- Excellent communication and collaboration skills.
- Customer obsessed, demonstrates initiative, has a learning mindset, takes ownership.
- Demonstrated ability to drive technical initiatives and influence architectural decisions.
- Strong experience with system design.
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: $177,700 to $209,000 (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.
- 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.
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 Instagram @cmt.ai.
About Cambridge Mobile Telematics:
Cambridge Mobile Telematics (CMT) is the world’s largest telematics and AI company for safer mobility. Its mission is to make the world’s roads and drivers safer. The company’s AI-driven platform, DriveWell Fusion®, proactively identifies and reduces driving risk, leading to fewer crashes and injuries. To date, CMT’s technology has helped prevent over 126,000 crashes worldwide. CMT enables partners to measure risk, detect crashes, provide life-saving assistance, and streamline claims. Headquartered in Cambridge, MA, CMT operates globally with offices in Budapest, Hungary; Chennai, India; Seattle, Washington; Tokyo, Japan; and Zagreb, Croatia. Learn more at www.cmt.ai.
Principal Software Engineer I, Full Stack in Cambridge employer: Cambridge Mobile Telematics
CMT is an exceptional employer, offering a dynamic work culture where innovation meets impact. As a Principal Software Engineer I, Full Stack, you will not only lead critical projects but also mentor teams in a collaborative environment that values diversity and inclusion. With competitive compensation, unlimited PTO, and a commitment to employee growth, CMT empowers you to make a real difference in mobility safety while enjoying a flexible work-life balance in the vibrant city of Cambridge, MA.
Contact Details:
Cambridge Mobile Telematics Recruitment Team
StudySmarter Expert Advice🤫
We think this is how you could land Principal Software Engineer I, Full Stack in Cambridge
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Cambridge Mobile Telematics or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
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We think you need these skills to ace Principal Software Engineer I, Full Stack in Cambridge
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Cambridge Mobile Telematics.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Cambridge Mobile Telematics and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Cambridge Mobile Telematics
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Cambridge Mobile Telematics uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
