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Full Stack Developer (Contractor)
Full Stack Developer (Contractor)Expect Technical Staffing • Denver, CO, US
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Full Stack Developer (Contractor)

Full Stack Developer (Contractor)

Expect Technical Staffing • Denver, CO, US
[job_card.variable_hours_ago]
[job_preview.job_type]
  • [job_card.full_time]
[job_card.job_description]

Job Description

Job Description

Seeking a mid- to senior-level Contract Full-Stack Developer with experience in React, state management, and serverless systems. Will be responsible for integrating our current business logic, persistence, and state layer into a newly generated UI, while also contributing to backend services on Firebase and GCP. This role includes working closely with internal code-generation agents, so familiarity with AI-assisted development workflows is highly valued.

Location : Hybrid (Denver) (70% Remote, 30% In Office)

Employment : Contract

Team : Product Engineering

Tech Stack : React 19, Tailwind CSS v4, Firebase / GCP, Cloud Run, LangGraph, Python, TypeScript

Responsibilities

  • Integrate an existing custom state-management and persistence layer into a newly generated React 19 + Tailwind CSS v4 UI.
  • Extend, refactor, and optimize generated React components, ensuring clean boundaries between generated and handwritten code.
  • Work with Firebase / GCP services such as Firestore, Cloud Functions, Cloud Run, and Identity / Auth.
  • Implement and maintain API layers and data access patterns between the React front-end and Python-based AI agents.
  • Collaborate with AI engineers using LangGraph-powered agents to ensure front-end workflows align with back-end AI functionality.
  • Establish development patterns for working with internal code-generation systems and safely merging generated code with custom logic.
  • Participate in code reviews, architectural discussions, and planning for future releases.

Required Skills & Experience

  • 4+ years of professional experience as a front-end, back-end, or full-stack developer.
  • Strong expertise in React (preferably React 18 / 19) and component-based architectures.
  • Solid understanding of TypeScript , state management (React Contexts, Providers, and Hooks, Redux, Zustand, Jotai, or equivalent), and client-side persistence patterns .
  • Experience with Tailwind CSS (v3 or v4) and modern styling practices.
  • Experience with Firebase (Firestore, Auth, Functions) or GCP serverless tooling preferred, but other serverless environment (AWS, Azure) experience would be considered.
  • Familiarity with Python-based microservices , especially on Cloud Run.
  • Experience working with AI-powered or code-generation agents (e.g., Codex, Copilot, GPT-based tooling, internal codegen systems).
  • Ability to architect clean interfaces between generated and manual code.
  • Strong debugging, refactoring, and system-integration skills.

    • Nice to Have

  • Exposure to LangGraph , LLM-oriented workflows , or agent orchestration systems.
  • Experience interfacing with MCP servers
  • Experience with CI / CD pipelines
  • Understanding of prompt engineering or AI-driven automation workflows.
  • Experience working in fast-moving startup environments.
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