Software Engineer Full Stack
Remote
Full Time
#Engineering
#3D Printing
#Software
#TypeScript
#JavaScript
#React
#Redux
#ThreeJS
#Machine Learning
#Databases
#Product
We are Flux, an all-remote startup building collaborative 3D design and simulation tools that help teams prototype and iterate faster. We are looking for a senior full-stack engineer who can help us scale our platform to thousands of users while keeping performance and reliability high.
Responsibilities
- Design and evolve platform architecture, including data models, messaging systems, and real-time synchronization features.
- Build and optimize multi-player collaboration, browser compatibility, and performance across desktop and mobile experiences.
- Prototype, implement, and refine new capabilities such as advanced zoom, circuit simulation, and user-behavior prediction models.
- Work across the full stack, from front-end interfaces to scalable back-end services, while maintaining code quality and best practices.
- Collaborate closely with teammates to solve technical challenges autonomously and deliver features that users love.
Must-haves
- Fluency in TypeScript or JavaScript, plus hands-on experience with React, Redux, and Three.js.
- Proven success scaling back-end systems and real-time databases to tens of thousands of users.
- Experience building or deploying machine-learning models that predict user behavior.
- Strong algorithmic skills and prior work with circuit simulation or similar complex domains.
- Track record of shipping and scaling a product from early stage to thousands of active users.
- Startup experience paired with a strong product sense and comfort working as a generalist across the codebase.
- Professional working proficiency in English.
Nice-to-haves
- Familiarity with Netlify, Google Firebase, Google Cloud Functions, AWS S3, Algolia, or PubNub.
- Experience with CI/CD pipelines inspired by large-scale engineering teams (GitHub, CircleCI, RainforestQA).
Benefits
- Fully remote work from any location.
- Compensation and benefits aligned with other high-growth, venture-backed startups.




