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Xperteez Technology

🌎 Full Stack Developer, Remote - Contract

Sorry, this job was removed at 01:04 p.m. (PST) on Friday, Sep 11, 2026
Remote
Hiring Remotely in United States
Junior
Remote
Hiring Remotely in United States
Junior

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Build and review full-stack software environments for AI training. Develop frontend and backend features, integrate APIs, debug issues across UI and data layers, improve code quality, document technical reasoning, and review peer submissions. The role requires frontend and backend development experience with frameworks such as React or Angular and stacks including Node.js, Python, Java, or Go. Prior AI experience is not required.
The summary above was generated by AI

Job Title: Full Stack Developer

Job Type: Contractor

Location: Remote

Required Skills

  • Node.js

  • Typescript

  • React

  • Angular

  • GoLang

  • API Integrations

  • FastAPI

  • REST API

  • React Native

  • Shopify

  • Wordpress

  • Nest.js

In this role, you'll apply your end-to-end development expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your development skills are what matter.

As an expert, you will be creating Reinforcement Learning Environments which test an AI model's ability to solve full-stack software problems, spanning frontend, backend, and the connection between them. You will be tasked with creating a reproducible environment and a golden reference solution for the problem.

Scope of Work

  • Contribute clear code samples, debugging approaches, and development insights across frontend and backend, using languages like JavaScript/TypeScript, Python3, Java, or Go.

  • Identify, troubleshoot, and resolve bugs that span both the UI and the underlying API or database layer.

  • Build small to medium features end-to-end, from the interface through to the data layer, following good coding practices.

  • Improve existing frontend and backend code to make it cleaner, more consistent, and easier to maintain.

  • Document your reasoning, approach, and code decisions to support AI training data quality.

  • Review peer-contributed code and technical submissions for correctness and clarity.

Preferred Qualifications

  • 1+ years of hands-on experience building both frontend and backend applications.

  • Comfortable with at least one frontend framework (React, Vue, or Angular) and one backend stack (Node/Express, Python/Django/Flask, Java/Spring, or similar).

  • Solid understanding of how frontend and backend systems connect through APIs.

  • Ability to debug issues that cross the frontend/backend boundary.

  • Good documentation and communication skills to explain your technical decisions clearly.

  • Interest in or curiosity about AI and its technical challenges (previous AI experience not required).

What you need to know about the Seattle Tech Scene

Home to tech titans like Microsoft and Amazon, Seattle punches far above its weight in innovation. But its surrounding mountains, sprinkled with world-famous hiking trails and climbing routes, make the city a destination for outdoorsy types as well. Established as a logging town before shifting to shipbuilding and logistics, the Emerald City is now known for its contributions to aerospace, software, biotech and cloud computing. And its status as a thriving tech ecosystem is attracting out-of-town companies looking to establish new tech and engineering hubs.

Key Facts About Seattle Tech

  • Number of Tech Workers: 287,000; 13% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Amazon, Microsoft, Meta, Google
  • Key Industries: Artificial intelligence, cloud computing, software, biotechnology, game development
  • Funding Landscape: $3.1 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Madrona, Fuse, Tola, Maveron
  • Research Centers and Universities: University of Washington, Seattle University, Seattle Pacific University, Allen Institute for Brain Science, Bill & Melinda Gates Foundation, Seattle Children’s Research Institute

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