Senior Mechanical Engineer

| Greater Boston Area
Join a fast-growing company that is using the Internet of Things (IoT) to transform how organizations sense, monitor, and make decisions. Founded out of MIT in 2005, SmartSense is trusted by more than 3,000 organizations, including Walmart, SpaceX, Apple, CVS Health, Coca-Cola, and the US State Department to make sensor-driven decisions. Our customers rely on our solutions help them do what they do better; we need your help to help us do what we do better.
Disproportionately impact a customer-driven, fast growing division that is transforming the way companies monitor their critical environments and make decisions about safeguarding their key assets. We’re building next-generation IoT products and infrastructure that helps companies measure their world, transmit their valuable metrics to a centralized location, alert when there is something to be concerned about and even predict key events before they happen.
Dive into an empowered mechanical engineering role developing products from concept to design to manufacture. You will design, implement, and deliver high quality mechanical designs which will result in hundreds-of-thousands of SmartSense’s devices. You will be a key member of an Agile Engineering team producing a variety of products, and address a variety of environments. You will learn to work with numerous different sensor and wireless technologies, situated in a variety of environments and applications. Choose when to hack and when to invest. You’ll apply judgment to where we can get the most benefit for our efforts, and you’ll help guide high-level architectural decisions.
SmartSense is an incredibly fast paced customer-driven company and you’ll be performing key role essential to our future success. Our close-knit, cross-functional team is a great chance to grow your knowledge across all layers of our system. You’ll join a team where everyone—including you—is knowledgeable about engineering patterns, with excellent teammates who can be opinionated about the product development process. We all pitch in to help wherever necessary when things are crazy. You’ll be challenged to learn new skills and tools, and you’ll be encouraged to expand your professional comfort zone.

Core Responsibilities

  • Mechanical design, product development, new design validation, design for manufacture, quality oversight
  • Design and analyze complex parts and assemblies in Solidworks, Fusion360, etc. Use FEA simulation to correct or improve designs
  • Perform tolerance stack-ups to ensure mating parts will fit in all scenarios
  • Complete DFM and FMEA studies to ease transition from manufacturing to design and reduce risk
  • Display strong knowledge of manufacturing processes including: CNC, 3D printing, stamping, milling, turning and ultrasonic welding
  • Demonstrate injection molding experience, with knowledge of using slides, lifters, over-molding and insert-molding. Snap fit design experience a plus. Familiar with typical injection molding issues and their causes.
  • Lead environmental testing and formulation of test plans for products. Testing may include: shock test, submersion test, vibration test, thermal shock, ice formation, corrosion, accelerated weathering, compression set and chemical resistance
  • Investigate, quantify and determine root causes of product and manufacturing issues.
  • Contribute to ongoing quality program and improvements.

Core Qualifications

  • BS, MEng, or MS (preferred) degree in Mechanical engineering or equivalent
  • 5+ years of related experience
  • ability to deliver results with little supervision
  • big-picture vision and attention to small details
  • natural curiosity
  • experience in a fast paced environment where priorities change and multiple projects compete for your time


  • Immediately start influencing designs and provide leadership in your domain
  • Working with our contract manufacturers and industrial design consultants to shepard new products to volume production
  • Regularly work closely with Electrical, Firmware, Manufacturing, Program Management and Hardware Engineers to learn the nuts and bolts of SmartSense’s sensor platform (and your teammates).
  • Participate in support engineering, testing and validation of new products.


  • Develop mechanical designs for products and accessories
  • Influence next generation hardware, firmware, and product strategies
  • Be able to own the entire planning, scoping, design, and implementation of new mechanical design projects
  • Participate in team-wide project estimation and scoping


  • Contribute substantially to engineering team efficiency
  • Train, mentor and influence your peers

SmartSense builds internet connected sensors and software that enable organizations to automatically monitor, track, and analyze sensor data for quality control, compliance, and operational efficiency. Our team is motivated to improve the world by providing real-time information that ensures medication and food safety. Our Vaccine Monitoring Initiative donates one system for each system we sell, so that a healthcare clinic in need can monitor life-saving vaccines. We endeavor to be both the best in the world at what we do, as well as, to be the best for the world because of how we do it; if you’re the right candidate, we will reach that goal together – and have a great time doing it!
SmartSense is proud to be an equal-opportunity workplace dedicated to pursuing and hiring a diverse workforce.

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Our office is located in Boston's Leather District, home to many tech startups and just a few blocks from South Station.

An Insider's view of SmartSense by Digi

What’s the vibe like in the office?

The vibe in the office is definitely energetic. People are always working in the functional work spaces rather than at their desks or can be found taking a break and participating in our office foosball league. People are excited about the work we're doing and the people we get to work with.


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What projects are you most excited about?

One of the largest projects SmartSense has been looking forward to is the new gateway which will be able to work with our entire sensor line. This will mean a much easier use case for all involved. It will also mean to the customer a far less complicated setup. This will help us to streamline our product offering, in which we are excited.


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What are SmartSense by Digi Perks + Benefits

SmartSense by Digi Benefits Overview

Comprehensive Health Plan
Dental Plan
Vision Plan
Accident Plan
Critical Illness Plan
Flexible Spending Plan
Life Insurance Plan
Commuter Benefits
Matched 401 k
Stock Purchase Plan
Educational Reimbursement Plan
College Fund "529 Plan"
Travel Assistance Benefit
Employee Assistance Program

Volunteer in local community
Friends outside of work
Eat lunch together
Intracompany committees
Daily stand up
Open door policy
Team owned deliverables
Team based strategic planning
Group brainstorming sessions
Open office floor plan
Health Insurance & Wellness Benefits
Flexible Spending Account (FSA)
Disability Insurance
Dental Benefits
Vision Benefits
Health Insurance Benefits
Life Insurance
Wellness Programs
Retirement & Stock Options Benefits
401(K) Matching
Company Equity
Employee Stock Purchase Plan
Performance Bonus
Child Care & Parental Leave Benefits
Generous Parental Leave
Flexible Work Schedule
Remote Work Program
Vacation & Time Off Benefits
Generous PTO
Paid Holidays
Paid Sick Days
Unlimited Sick Days.
Perks & Discounts
Casual Dress
Commuter Benefits
Company Outings
Game Room
Our game room includes Pool Table, Foosball, Darts and Air Hockey.
Stocked Kitchen
Happy Hours
Professional Development Benefits
Job Training & Conferences
Tuition Reimbursement
Lunch and learns
Cross functional training encouraged
Promote from within
Continuing Education stipend
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