Principal Social Media Manager
cambridgemobiletelematicsSomerville (MA)
Principal Social Media Manager
Posted today
cambridgemobiletelematicsSomerville (MA)
SENIORITY
Manager
About the role
This role blends the tech and human story. As our Principal Social Media Manager, you'll show what an AI leader in mobility looks like to the insurance, automotive, and public-sector leaders who depend on us, the AI talent who want to build here, and the wider industry watching where mobility AI goes next. You'll put road safety in front of millions of people: drivers, families, and the companies that can change what happens on the road. Behind every number in our data is a person who made it home. Your job is to make people see it, share it, and act on it. Your work will help save lives.
You will build CMT's social presence from the ground up: start our paid social program, make LinkedIn the place industry leaders follow for mobility AI, and use Instagram and Facebook to show the people and culture behind the work. You'll create amazing content yourself, shape it for each platform, put paid behind what wins and works, and use AI to move faster than teams twice our size.
You’ll have a design team, a paid budget, and direct access to leadership. You'll report to the Director of Marketing and work daily with Communications, Design, Product Marketing, Events, and People Operations.
CMT is looking for a Principal Social Media Manager I 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.
Responsibilities:
Use independent judgment and discretion to develop and execute CMT's organic and paid social media strategy across LinkedIn, Instagram, and Facebook, aligning content with business goals and growth opportunities
Own and manage the social media calendar, supporting product launches, research, company news, events, recruiting, and industry trends
Create and publish engaging, platform-specific content, including short-form videos, carousels, graphics, and photography
Partner with AI, Data Science, Product, and Marketing teams to translate CMT's technology, products, and research into compelling, accessible content
Collaborate with Design and Employer Brand to maintain brand consistency, elevate creative content, and support talent acquisition initiatives
Plan, execute, and optimize paid social campaigns, including audience targeting, creative testing, budget management, and performance analysis
Develop employee advocacy initiatives and partner with Sales to expand CMT's reach and engagement with target audiences
Manage social media engagement, community relationships, and social listening to identify emerging trends, opportunities, and potential issues
Establish and track social media KPIs, analyze performance, and provide actionable recommendations to Marketing leadership
Leverage AI tools to streamline content creation, optimize performance, and develop scalable workflows for the Marketing team
Stay current on platform trends, emerging technologies, and social media best practices to continuously improve CMT's social presence
Complete any additional tasks as they arise
Qualifications:
Bachelor's degree or equivalent years of experience and/or certification in marketing, communications, journalism, film, or a related field
7+ years of relevant working experience running social media for B2B technology or AI companies, in-house or at an agency, including paid social
A portfolio of content you produced yourself, with results for each platform
Proven record growing audience and engagement on LinkedIn, Instagram, and Facebook, with numbers to show it
Hands-on experience running paid campaigns in LinkedIn Campaign Manager and Meta Ads Manager, with budgets you owned
Strong video skills: plan, shoot on a phone or camera, edit in Premiere, CapCut, Descript, or similar, and caption for each platform
Expert in the native analytics for each platform; can pull a report, explain what it means, and say what to do next
At the cutting edge of AI for social: you use Claude, ChatGPT, Gemini, and AI image and video tools every day to make content and improve results
Fluent in AI and data: you learn complex technology fast, explain how models and data work in plain words, and spot the story in technical work; strong writer and editor
A self‑starter who finds the next idea, tests it, and reports back without being asked
Experience building or running an employee advocacy program
Experience with social tools such as Sprout Social, Hootsuite, or Sprinklr, plus Canva and HubSpot
Good judgment on brand voice, timing, and risk; calm and fast when something goes sideways
Able to work from the Cambridge office three days a week and travel up to 15% for events
Nice to Haves: Experience marketing AI, data, or deep-tech prod
Before you apply
Applying takes about a minute. These four things decide how fast it moves after that.
Your profile is current
It's what we read first. Occupations, seniority and locations matter more than a long history.
Two examples you can talk through
Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.
A number in mind
What you're on now and what would make you move. We negotiate better when we know both.
Your notice period
Employers plan around it, and it's the question that stalls offers most often.
Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.