Senior Software Engineer

Carbon, Inc.; Sunnyvale (CA); On-site; USD 158,400 - 237,600; Full time

Benefits offered by this job

Equity

Comprehensive benefits

Time-off programs

Job summary

Carbon, Inc. is hiring a frontend software engineer in Sunnyvale to build customer‑facing web apps and APIs. You will own significant portions of the UI, leverage React, and integrate with Tier‑0 services. You will improve performance and scalability while collaborating with product managers and engineers.

The role emphasizes deep React knowledge, modern frontend patterns, and end‑to‑end ownership in a fast‑moving hardware/software environment in Sunnyvale, CA.

Qualifications

• Bachelor's degree in CS/SE or equivalent practical experience.
• 5+ years of professional software engineering experience.
• Strong React and modern front-end skills with state management and performance optimization.
• Experience building web apps that integrate with backend services via REST and gRPC APIs, with auth.
• Experience designing and building production APIs (REST, gRPC, or similar).
• Experience scaling a web application in production.

Responsibilities

• Build high‑impact web applications that integrate with Tier‑0 services.
• Create modern REST and gRPC APIs powering web apps and platform capabilities.
• Scale front‑end and cloud integrations using GCP and scalable databases.
• Demonstrate deep React expertise to develop data‑heavy dashboards.
• Own features end‑to‑end from design through production and ship scalable code.
• Collaborate with product managers, mentor junior engineers, and participate in design reviews.

Skills

React

Frontend architecture

Performance optimization

REST APIs

gRPC

State management

Debugging

Education

Bachelor's degree in Computer Science or related field

Tools

Go

Python

Java

C++

TypeScript/Node

Job description

At Carbon, our mission goes beyond 3D printing. We are enabling creators everywhere to make what the world needs, right now. Our company is built on the idea that diverse fields of study must come together to solve intractable problems. We have grand ambitions to create technology that will influence industry around the world.

Help us change the world and we will help you change yours.

Working at the intersection of hardware, software, and molecular science, Carbon is committed to delivering on the promise of 3D printing, enabling commercial customers to go beyond basic prototyping to produce products with real‑world applications.

You’ll be joining a close‑knit team, working with experts in 3D geometry, web technologies, Linux, and everything in between.

This role is based in our Sunnyvale, CA location and is onsite Monday–Friday. This role is not eligible for current Visa sponsorship. This role is not eligible for relocation.

Job Responsibilities

• Build high‑impact web applications: Design and ship customer‑facing web apps that integrate with our Tier‑0 services (Fleet Management, Auth, and Core APIs), helping keep the foundational systems that power our global printer network resilient as new features are added.
• Create modern APIs: Design and build REST and gRPC interfaces that power our web applications and expose platform capabilities to other teams. Care about 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 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. Build dashboards, 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 for the job, 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, 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 review, pairing, and design feedback, and bring your perspective to team‑wide design reviews.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
• 5+ years of professional software engineering experience.
• Strong React and modern front‑end skills, with deep experience in 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.

Compensation & Benefits

The compensation bracket for this position is $158,400 – $237,600 per year. In order to maintain equitable internal pay practices, we aim to hire new employees near the midpoint of $198,000, taking into account your experience, work location, certifications, and the unique skills you bring to the role.

Carbon also offers a comprehensive total rewards package that includes equity, benefits, and time‑off programs. For details on our total rewards package, visit https://www.carbon3d.com/about/life-at-carbon.

EEO Statement

Carbon, Inc. is an equal‑opportunity employer. We do not discriminate on the basis of race, color, religion, sex, gender identity, sexual orientation, national origin, age, disability, veteran status, or any other status protected by law. All qualified applicants will receive consideration for employment without regard to these factors.