Principal Software Engineer

Principal Software Engineer – CAM Studio (Onshape)

Hybrid – Boston, MA (2–3 days/week)

About the Role

PTC’s Onshape CAM Studio team is building modern, cloud‑native CAM capabilities integrated directly into a SaaS‑based CAD platform. CAM Studio enables users to go from design to manufacturing within a single, connected system.

We are looking for a strong software engineer to join the CAM Studio team as an individual contributor. This role is ideal for someone who enjoys working on technically complex, engineering‑heavy products and wants to contribute to the evolution of a mature CAM application using modern software practices.

This is not a greenfield role and not a machinist or CNC programmer role—you will be building and evolving the software behind a CAM system, not operating machines.

What You’ll Do

• Design, implement, and maintain features within the CAM Studio application
• Develop C#/.NET‑based components and services supporting CAM workflows
• Work within an Agile team to enhance an existing, production‑grade codebase
• Collaborate with teammates on architecture, performance, and reliability improvements
• Learn and apply modern SaaS and cloud concepts as CAM Studio continues to evolve

What We’re Looking For

Required Qualifications

• Strong experience as a software engineer building and maintaining production systems
• Proficiency in C# / .NET (desktop applications and/or services)
• Experience working with large or mature codebases
• Solid software engineering fundamentals, including:
• Writing clean, maintainable code
• Debugging and problem‑solving
• Designing and implementing features end‑to‑end
• Interest in or exposure to cloud‑based or SaaS environments
• Curiosity and willingness to learn new technologies and domains
• US Citizen or GC holder requirement due to ITAR specifications.
• Ability to commute to Boston Seaport office 2-3 days a week
• Experience with CAD, CAM, manufacturing, or industrial software

Familiarity with:

• Toolpath generation, CAM engines, or post processors
• Simulation, verification, or geometry‑related problem spaces
• Exposure to:
• Microservices or service‑oriented architectures
• Kubernetes or containerized environments
• RESTful APIs
• Background in mechanical engineering, applied math, or a related technical field paired with strong software skills

Important Clarification

We are seeking software engineers who build CAM software, not CAM users or machine operators.

If your experience is primarily using CAM tools to program CNC machines, this role is likely not a fit.

Level & Growth

• This role is open at the Senior or Principal level, depending on experience
• Level is flexible and will be determined based on skills, impact, and growth potential
• Engineers with strong fundamentals and a desire to grow into broader technical leadership are encouraged to apply

Work Environment & Benefits

• Hybrid work model: Boston office 2–3 days per week
• Collaborative team with experienced engineers and opportunities for mentorship

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

At PTC, we believe in the power of diverse ideas and perspectives. As a global company that values and respects all identities, cultures, and perspectives, we strive to create an inclusive PTC for ALL through an environment where everyone feels like they belong and are empowered to bring their true, authentic selves to work. Proud to be an Equal Opportunity and Affirmative Action Employer, we welcome applicants from all backgrounds and hire without regard to race, national origin, religion, age, color, ethnicity, ancestry, marital status, sex (including pregnancy), sexual orientation, gender identity, gender expression, genetic identity, disability, veteran status, or any other characteristic protected by local, state, or federal laws, rules, or regulations. Life at PTC is about more than working with today’s most cutting-edge technologies to transform the physical world. It’s about showing up as you are and working alongside some of today’s most talented industry leaders to transform the world around you.

If you share our passion for problem-solving through innovation, you’ll likely become just as passionate about the PTC experience as we are. Are you ready to explore your next career move with us?