Senior Full Stack Engineer (React/Python/3D Visualization)

enior Full Stack Engineer (React/Python/3D Visualization)
Location: Fremont, CA (Onsite/Hybrid Preferred)
Duration: Long-Term
Employment Type: Contract
Job Description
We are seeking a highly skilled Senior Full Stack Engineer with deep expertise in modern web technologies, scalable backend development, and advanced 3D visualization platforms. The ideal candidate will have a strong background in building high-performance, data-intensive applications and experience working across the entire software development lifecycle.
This role requires hands-on development experience with React, JavaScript, GraphQL, Python, FastAPI, Celery, and Pydantic, along with exposure to 3D visualization, spatial design systems, AI-powered applications, and performance optimization.
Required Qualifications
Bachelor's or Master's degree in Computer Science, Engineering, or related field.
6+ years of professional software development experience.
Strong expertise in React.js, JavaScript/TypeScript, HTML5, and CSS3.
Extensive experience building APIs and backend services using Python, FastAPI, Celery, and Pydantic.
Strong knowledge of GraphQL design, implementation, and optimization.
Experience designing and developing scalable, distributed systems and microservices.
Proficiency with modern database technologies (PostgreSQL, MySQL, NoSQL databases).
Experience with cloud platforms such as AWS, Azure, or GCP.
Strong understanding of software architecture, design patterns, and performance tuning.
Experience with CI/CD pipelines, Git, and Agile/Scrum methodologies.
Preferred Qualifications
Hands-on experience with OpenGL, WebGL, Three.js, DeckGL, or similar 3D visualization frameworks.
Experience building applications involving:
Spatial design systems
Interactive visualization platforms
Mapping and geospatial data
Real-time rendering engines
Exposure to AI/ML integrations, including LLM-powered applications and intelligent automation solutions.
Experience optimizing rendering performance, large-scale data processing, and frontend responsiveness.
Familiarity with vector databases, AI APIs, and modern AI application architectures.
Experience collaborating with Product, UX/UI, Data Science, and Engineering teams.
Key Responsibilities
Design, develop, and maintain scalable full-stack applications.
Build highly interactive frontend experiences using React and GraphQL.
Develop robust backend services and APIs using Python, FastAPI, Celery, and Pydantic.
Create and enhance 3D visualization and spatial data applications using WebGL-based technologies.
Integrate AI-powered capabilities into existing and new products.
Optimize application performance, reliability, and scalability across frontend and backend systems.
Collaborate with cross-functional teams to deliver innovative product solutions.
Participate in architecture discussions, code reviews, and technical leadership initiatives.
Mentor junior engineers and contribute to engineering best practices.
Technical Skills
Frontend:
React.js
JavaScript / TypeScript
GraphQL
HTML5, CSS3
Backend:
Python
FastAPI
Celery
Pydantic
REST APIs & Microservices
3D & Visualization:
OpenGL
WebGL
Three.js
DeckGL
Cloud & DevOps:
AWS / Azure / GCP
Docker
Kubernetes
CI/CD Pipelines
Nice to Have:
AI/ML Integration
LLM Applications
Geospatial Systems
Real-time Data Processing