Senior Software Engineer

About the Role At Carbon, our mission goes beyond 3D printing. This Senior Software Engineer role in Sunnyvale, CA focuses on building high-impact web apps, REST/gRPC APIs, and scalable front-end systems that power our global printer network. You will collaborate with product managers and engineers to deliver resilient, scalable software that supports our cutting-edge hardware and software ecosystem. What You'll Do

• Build High-Impact Web Applications: design and ship customer-facing web apps that integrate with Tier-0 services (Fleet Management, Auth, and Core APIs), helping keep the foundational systems that power our global printer network resilient as we add new features on top.
• Create Modern APIs: design and build REST and gRPC interfaces that power our web applications and expose platform capabilities to other teams. Focus on clean data contracts, thoughtful versioning, and building services others can rely on.
• Scale Web-to-Backend Systems: own significant portions of our front-end and cloud integration. Work with Google Cloud Platform (GCP) and scalable database architectures to build and grow the "Web-to-Edge" bridge, keeping the platform responsive as data volume and printer count climb.
• Have Deep React Expertise: bring very strong React and modern front-end skills to complex, data-heavy interfaces. We are not just building dashboards; we are building control systems that require thoughtful state management and high-performance rendering.
• Own Features End-to-End: take major initiatives from design through production. Contribute to architectural decisions, select the right technologies, and ship code that scales with the business.
• Bring Agency and a Learning Mindset: jump in where the work is. When a problem crosses into an unfamiliar part of the stack, you pick it up, learn quickly, and get it done rather than waiting for the "right" person.
• Collaborate and Mentor: partner closely with product managers to translate customer needs into robust software designs. Support more junior engineers through code reviews, pairing, and design feedback, and contribute to team-wide design reviews. What We're Looking For
• Bachelor's degree in Computer Science, Software Engineering, or related field, or equivalent practical experience.
• 5+ years of professional software engineering experience.
• Strong React and modern front-end skills, including deep experience with component architecture, state management, and performance optimization.
• Proven experience building and shipping web applications that integrate with backend services (REST/gRPC APIs, auth, real-time data).
• Experience designing and building production APIs (REST, gRPC, or similar) that other applications or clients consume.
• Experience scaling a web application in production, whether that means performance, larger data volumes, or a growing user base.
• Working knowledge of at least one modern backend language (Go, Python, Java, C++, TypeScript/Node, etc.); comfortable reading and contributing to backend code when needed.
• Familiarity with cloud platforms (GCP preferred; AWS or Azure equivalent) and modern database architectures.
• Strong communication, debugging, and problem-solving skills.
• Curiosity and willingness to work outside your primary stack when the work requires it.
• You do not need to match every listed expectation to apply for this position. Nice to Have
• Experience working with 3D geometry, web technologies, or Linux.
• Mentoring experience and ability to operate effectively in cross-functional teams.
• Comfortable working in fast-moving environments and contributing beyond your core stack. Compensation & Benefits
• Salary range: $158,400 - $237,600 per year (USD).
• Onsite role based in Sunnyvale, CA (Mon - Fri).
• Additional benefits and perks are described in our standard offerings.