Senior Software Engineer Waltham, Massachusetts, United States

Markforged (NYSE: MKFG) is leading the digital transformation of manufacturing by revolutionizing how engineers and manufacturers create and innovate. Our unique platform combines software, advanced materials (including cutting‑edge metal and composite technologies), and industrial 3D printers to deliver strong, functional parts for various industries. We empower customers to overcome supply chain complexities, reduce costs, and accelerate innovation by producing high‑performance tools, fixtures, prototypes, and end‑use parts in house.

PLEASE NOTE: We are not able to sponsor for this role.

We have an exceptional role in our Waltham, MA headquarters for a Senior Software Engineer. As a Senior Software Engineer focusing on Full‑stack Node.js Web development, you will be building out Markforged’s 3D printer/content management system and web‑based slicer (Eiger).

This is a true full‑stack position, ranging from designing REST APIs, utilizing AWS services, optimizing Postgres queries, and implementing new 3D views in WebGL. This role requires the ability to bridge the gap between engineering and design, leveraging experience in UX principles and design tools like Figma to rapidly prototype, iterate on, and implement exceptional user experiences.

What you will own:

• Full Stack Development: Design, develop, test, and maintain a world‑class scalable, multi‑tenant web application for storing, editing, printing, and managing 3D designs and 3D printers
• Technical Leadership: Contribute to technical architecture decisions, perform code reviews, and drive best practices in coding standards, system design, and performance optimization to deliver new features at scale. Plan for the growth of Markforged’s infrastructure and mentor junior team members
• UX/Design Integration: Apply UX principles to translate user needs into intuitive UIs, and create basic wireframes or prototypes using tools like Figma to rapidly iterate on solutions.
• Collaboration: Work closely with designers, engineers of a variety of disciplines, and customers, to understand project requirements and deliver solutions that meet business goals.

What you have:

• Experience: 5+ years professional experience building and shipping high quality code, with a Bachelor’s degree in Computer Science, or equivalent experience
• UX & Prototyping: Demonstrated experience with UX design principles and the ability to create basic mockups or prototypes using design tools such as Figma
• DevOps & Cloud: Experience with cloud platforms such as AWS, GCP, Azure and CI/CD pipelines, and distributed systems
• Database Expertise: Proficiency with both SQL (e.g., PostgreSQL) and experience with data modeling and query optimization
• Communication: Excellent written and verbal communication skills, with the ability to articulate technical concepts to non‑technical stakeholders.

Bonus Points

• A portfolio demonstrating full‑stack development and design/mock up work
• Design and implement observability tooling for monitoring and alerting
• Experience with web‑based visualization frameworks (e.g., Three.js, Canvas, D3, WebGL and more)
• Experience with CAD/CAM software and 3D modeling libraries

Salary Range

The salary range for this role is expected to be between $146,608 - $198,352. Actual base pay could vary based on factors including but not limited to experience, subject matter expertise, geographic location, certifications, licenses, business needs and the applicant’s skill set. The base pay is just one component of the total compensation package for employees. Other components may include a comprehensive benefits package. The estimated compensation range listed in this job posting reflects base salary only.

Our software technologies and tools empower our customers to configure print‑ready parts, visualize part geometry in 3D, and push to IoT‑connected printers for printing. As part of the Software Engineering team, you will be helping to lead the scaling and growth of our 3D printing platform involving end‑customer applications and IoT services. We move quickly and refuse to compromise on quality. We believe in “doing it right the first time” and investing in code quality, testing, tooling and infrastructure. Your ideas will directly influence the company’s future. You will do interdisciplinary work with cloud and physical systems and learn from best‑of‑the‑best engineers across Materials Science, Mech‑E, EE, and Software. You will have hands‑on experience using our printers and technology.

Why Markforged?

We are reinventing manufacturing so that engineers can build anything they imagine.

We are one team that wins together!

Markforged is an equal opportunity employer and does not discriminate based on race, color, religion, sex, national origin, age, or disability.