Backend Developer ___ Burlingame, CA / Menlo Park, CA / Seattle, WA (Onsite) ___

Backend Developer ___ Burlingame, CA / Menlo Park, CA / Seattle, WA (Onsite) ___ Fulltime FTE

Backend Developer ___ Burlingame, CA / Menlo Park, CA / Seattle, WA (Onsite) ___ Fulltime FTE

3 days ago Be among the first 25 applicants

Role: Full Stack Developer (Backend Engineer)
Onsite Location: Burlingame, CA & Menlo Park, CA (on-site) and Secondary location - Seattle, WA
Fulltime Permanent / FTE
The Role: We’re looking for a contract Full Stack “Ninja” Developer who can move fast across both web and native mobile platforms . You’ll build full-featured, AI-first user experiences using modern full-stack frameworks (e.g. Node.js + React/Next.js) and native mobile stacks (Swift for iOS, Kotlin for Android), all integrated with scalable AI backends and robust cloud infrastructure.
Key Responsibilities

• Build and ship production-grade web apps using Node.js + React/Next.js
• Develop performant iOS apps with Swift/SwiftUI and Android apps with Kotlin/Jetpack Compose
• Integrate AI capabilities: LLM APIs, tool use, vector DBs, memory, retrieval-augmented generation (RAG), and evaluation loops
• Design secure, scalable backend services in JavaScript/TypeScript or Python to orchestrate agentic workflows
• Deploy on AWS or GCP, using Docker, CI/CD, observability tooling, and IA (Terraform or CDK)
• Rapidly prototype, iterate, and polish features in tight collaboration with product, research, and design
  

Qualifications

• Deep experience with Node.js, React, and modern frontend architecture
• Native app development expertise in Swift/SwiftUI (iOS) and Kotlin/Jetpack Compose (Android)
• Backend experience with Node.js, Python, FastAPI, Next.js, LangChain, or similar frameworks
• Familiarity with cloud platforms (AWS or GCP), containerization, IaC (Terraform/CDK), and continuous delivery pipelines
• Strong product instincts and a passion for building clean, performant cross-platform apps
• Demonstrated success shipping AI-first features or applications powered by LLMs or agent frameworks
  

Bonus Points

• Experience using AI development tools like Claude Code, Cline, or Copilot++ in production
• Familiarity with AI/ML infrastructure and workflows, including:
• Model training and fine-tuning pipelines using PyTorch or JAX
• On-device inference with Core ML, NNAPI, or quantized model deployment
• High-performance systems experience with C/C++, Rust, or Go for native modules, low-latency pipelines, or WebAssembly
• Familiarity with the latest developments in AI technologies
  

What We Offer

• A contract role building at the edge of what’s possible in AI-powered applications, across web and native platforms
• The chance to co-create next-generation products inside AI Tech, alongside top-tier engineers, designers, and researchers
• Access to cutting-edge models, tools, infrastructure, and internal research to ship bold, usable features fast
  

If interested, please share resume to

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Information Technology

• Industries

  Software Development

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