We are


Fortify_Photography_Group_Stairs _2
Fortify_Photography_Group_Stairs _2
Fortify_Photography_Group_Stairs _2

Our Story

Fortify was created to break the cycle of long lead times and inferior materials in traditional manufacturing. The company was founded on research on composite 3D printing by Randall Erb and Joshua Martin at Northeastern University. Their goal was to enable quick and seamless fabrication of composites with optimized microstructures. Through their research, they invented magnetic 3D printing, or Fluxprint.

They established Fortify to bring optimized composites to engineers across the globe. Today, Digital Composite Manufacturing (DCM) has found success in tooling, aerospace, and automotive applications. Now, Fortify is a leader in optimized composites. DCM has transformed the DNA of materials, pushing the boundaries of what’s possible in engineering.

Fluxprint Technology

Fluxprint makes high-performance materials accessible. It’s a patented magnetic 3D printing process that creates optimized composites. It combines magnetics and digital light processing (DLP) 3D printing to produce composite parts with ideal mechanical properties. As a part is additively manufactured, fibers are magnetically aligned voxel by voxel to optimize the microstructure. High-performance components are created significantly faster and at a fraction of the cost compared to traditional manufacturing. With Fluxprint, engineering teams achieve ideal mechanics and bring quality products to market faster.

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Fortify_Photography_Group_BackArea _7
Fortify_Photography_Group_BackArea _7

We move manufacturing forward.

Who We Are

At Fortify, we apply our expertise across disciplines to create products that challenge the status quo. Our culture is inclusive and collaborative. We are a growing team of engineers and business leaders with years of experience in innovation. Together, we develop groundbreaking technology, redefining what’s possible in manufacturing.

Our Team


Josh Martin

CEO, Founder

Josh Martin is a mechanical engineer and materials scientist by training. He received a B.S. in Mechanical Engineering from the University of Delaware, where he was first exposed to composite materials. Josh worked as a materials scientist at the Army Research Labs before moving to Boston to pursue his Ph.D. at Northeastern University under a National Science Foundation Fellowship. His research spun out into Fortify, where he operates as CEO. Outside of the office, you can find Josh rock climbing and taking motorcycle trips.


Karlo Delos Reyes

Director of Business Development

A chemical engineer by training, Karlo Delos Reyes runs business development and strategy at Fortify. Karlo joined the founding Fortify team during his Ph.D. program while serving as president of Origin, a program dedicated to spinning out graduate research into commercial ventures. He holds a dual Bachelor’s Degree in Chemical Engineering and Biochemistry and Cellular Biology from the University of California, San Diego. Previously, he worked at the Genomics Institute of the Novartis Research Foundation in their Advanced Automation and Robotics Department. Outside of work, you can find Karlo going for a run around the Charles River, exploring outside of the United States, or relaxing on a beautiful San Diego beach.


Dan Shores

Software Lead

Dan is an engineer with a multi-disciplinary background in software and mechanics for the development of biomedical devices and consumer products. He joined Fortify while completing his master’s degree at Northeastern University, where he worked on computer-aided design and
analysis of composite material microstructures. In his free time, he enjoys skiing, camping, board games, and taking things apart and putting them back together.


Andrew Caunter

Hardware Lead

Andrew is a mechanical engineer at Fortify. After earning a B.S. in Mechanical Engineering from Northeastern University, he began his career as a medical device product development consultant. He now serves as hardware lead at Fortify, designing 3D printer mechanisms and hardware. He spends his free time in the mountains, where he enjoys skiing, hiking, and mountain biking.


Scott Goodrich

Systems Lead

Scott is a mechanical engineer with product development experience across clean energy, biomedical, consumer electronic, and industrial applications. Scott began designing magnetic control systems and 3D printers with the team that became Fortify while completing his B.S. and M.S. in Mechanical Engineering at Northeastern University. After work, Scott can be found sailing, kiteboarding, skiing, falling off a climbing wall, or playing music.


Randy Erb

Scientific Adviser, Founder

Randy is a professor of mechanical and industrial engineering and the head of DAPS Lab at Northeastern University. He is an expert in colloidal science, additive manufacturing, and magnetic manipulation. He serves as the resident scientific advisor of Fortify.


Noah Tremblay

Materials Lead

Noah received his PhD in Chemistry from Columbia University and then attended Johns Hopkins University for a Post Doctoral Fellowship in Materials Science & Engineering. Noah has since worked in industrial R&D as a chemist, materials scientist, and product engineer for three Harvard-based startups. He has developed chemistries and resin formulations for a multitude of 3D printing, defense, and consumer applications. He has a passion for innovation and for creating a better future for the planet.

Mike Datta
Mike Datta

Mike Datta

Electrical Lead

Mike has 10 years of experience bringing electronic systems through concept, design, certification, and mass market launch. Prior to joining the Fortify team, Mike was a founder and VP of Product Development at 3L Power where he developed a wide variety of power conversion systems in the kilowatt to multi-mega watt range including battery energy storage systems, solar inverters, PM Motor drives, and grid interactive systems. Mike holds a BS in Electrical Engineering and a MS in Electromagnetics and Photonics both from Boston University. In his spare time, Mike enjoys visiting historic homes in New England and beyond.

Ben MacDonald
Ben MacDonald

Ben MacDonald

Applications Engineer

Ben is a mechanical engineer at Fortify with experience in both product development and applications. Ben earned his B.S. in Mechanical Engineering from Wentworth Institute of Technology and as a student worked as a co-op for Fortify. Upon graduation he rejoined the team as an applications engineer focused on printing and injection molding. In his spare time, he enjoys playing baseball, snowboarding, relaxing on the beach, and keeping up with Boston sports.


Hank Goddard

Board Member

Hank is a Managing Director at Mainspring Capital Partners, a family office that provides capital and operating expertise to growing businesses. As an active board member at Fortify, he works with the executive team on market strategy, sales, partnerships, financing and corporate governance. Hank started his career in engineering, designing composite jet engine and automotive components. Since then he has built, bought and sold a variety of companies and invested in many early-stage technology companies. Hank is also on the board of directors at Dauntless Air, an aerial firefighting company, and was previously a board member at Accurate Home Care, Oncology Services International, AL Solutions and Mainspring Healthcare Solutions. When Hank isn’t working, he spends as much time as possible exploring the world with his wife and two teenage children.

Work smart, have fun.

What we do

We work together to develop groundbreaking products, and we have fun doing it. Our workspace is decked out with sitting-to-standing desks, a kitchen stocked with snacks, a ping-pong table, rock climbing holds, and a big screen for movies and video games (and the occasional meeting). Outside of the office, you can find us at the climbing gym down the street or on the ski slopes near Boston.

All teammates have excellent resources on hand. Engineers have access to a full lab, machine shop, and characterization facilities. We’re committed to professional development, providing employees with courses, books, and any other resources they need to reach their goals. Our culture is designed to help each person succeed now and in the long run.


Professional Development

We invest in books, courses, and software for employees to develop their skills, and we leverage our network to find them the best mentorship possible.


Snack Breaks

Our kitchen is filled with healthy (and not-so-healthy) treats. Whatever the beverage of choice—tea, coffee, Soylent—it’s on hand to keep the Fortify team energized.


Staying Active

Yoga, surfing, biking, skiing—our team loves to stay active. Fortify employees get a discount on the nearby rock climbing gym, and we have holds in the office to practice.


Boston Outings

Boston has a terrific bar and restaurant scene. After work, you can often find the Fortify team at one of Boston’s bars to watch a sports game or just hang out.


Join the team.

Working at Fortify

Fortify is an advanced manufacturing company creating a new generation of high-performance products. Digital Composite Manufacturing (DCM), enabled by patented Fluxprint technology, creates composite parts with precise fiber alignment. We bring cutting-edge technology to leading companies in the manufacturing, aerospace, and automotive industries.

Based in Boston, MA, we’re a small, passionate team motivated by curiosity and innovation. We’re hiring high-performing professionals to help build Fortify into a global leader in advanced manufacturing. Join an inclusive, collaborative team of engineers and creatives developing elegant technology that redefines how products are made.

Open Positions

Senior Materials Scientist

| Boston, MA

Duties and Responsibilities

  • Develop cutting edge photoreactive resins that are able to be highly filled, optimizing for mechanical and thermal properties
  • Explore and develop state-of-the-art curing mechanisms (photo, thermal, cationic) for use in SLA/DLP 3D printing
  • Explore various filler materials and determine their effect on material properties
  • Develop, functionalize, or modify filler material for improved processability and enhanced material properties
  • Modify and enhance the rheology and stability of composite dispersions

Candidate Prerequisites

  • Passionate and/or highly curious about 3D printing and composites
  • Doctorate or equivalent degree/experience in Materials Science, Polymer Chemistry, Polymer Physics, Chemical Engineering, or related field
  • Deep knowledge and experience in UV, thermal, and other polymer catalysis pathways
  • Diligent and collaborative worker who independently takes initiative to achieve company goals
  • Experience in coupling agents and surface chemistry modification
  • Flexible across multiple disciplines

Senior Firmware Engineer

| Boston, MA

Duties and Responsibilities

  • Collaborate with electrical and mechanical teams to define and select a robust microprocessor architecture for a system with high I/O capacity
  • Re-write magnetic 3D printer firmware on newly selected processor based off existing subsystem requirements
  • Develop robust communication methods with Fortify’s proprietary printer-host software
  • Select, design, and write firmware for customer user interface
  • Design embedded data-logging capabilities to track and export a broad range of diagnostic data

Candidate Prerequisites

  • At least 5 years of professional experience designing microprocessor architectures and writing firmware
    Experience with:
  • Coding in embedded C
  • Selecting microprocessors based on system requirements
  • Writing firmware to control and coordinate subsystems for industrial processes
  • Designing PID controllers
  • Implementing bootloaders
  • Utilizing communication protocols such as USB, I2C, and serial
  • Passionate about implementing advanced mathematics and algorithms in firmware to control electronic and electro-mechanical systems
  • History of developing firmware from concept through production
  • Can present a strong portfolio of embedded systems and firmware experience
  • Strong communication skills

Software Engineer

| Boston, MA

Duties and Responsibilities

  • Design, develop, and test back-end printing software functionality such as support structure generation, layer slicing, mesh manipulation, and printer communication
  • Contribute to continued development of microstructure optimization algorithms and simulation tools
  • Assist with all aspects of the software development life cycle

Candidate Prerequisites

  • B.S. or M.S. in Computer Science, Software Engineering, or equivalent
  • 2+ years of professional experience developing production software applications
  • Proficiency in Python and/or Node.js
  • Are a diligent and collaborative worker who independently takes initiative to achieve company goals

Our Investors

Mainspring Capital Partners
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Prelude Ventures
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McCune Capital
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NeoTribe Ventures
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Ocean Azul Partners
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River Valley Investors
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