Qureos

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Full Stack Developer

Garden Grove, United States

NOTE: LOCAL EMPLOYMENT ONLY - Do not apply if you are out of the southern California area. This job requires in office meetings 2 to 3 times a week.

Job Overview
Rank Authority is seeking a highly skilled Full Stack Developer to take ownership of our AI-powered SEO platform. You will help scale and maintain our SaaS application, built on Replit for the frontend and Xano for the backend, while integrating APIs and AI/LLM workflows. The ideal candidate has hands-on experience building SaaS platforms, connecting APIs, and optimizing applications for performance, security, and scalability.

Key Responsibilities

  • Develop, maintain, and optimize the Rank Authority platform (frontend in Replit with React/JavaScript, backend powered by Xano).
  • Build and refine RESTful APIs for efficient data flow between frontend, backend, and external services.
  • Integrate and optimize LLM/OpenAI workflows for SEO automation (prompt engineering, response handling, performance tuning).
  • Manage API integrations with external services (DataForSEO, n8n, Stripe, WordPress, etc.).
  • Collaborate with UX/UI designers to ensure responsive, user-friendly designs.
  • Ensure database performance and security within Xano.
  • Implement best practices for application architecture, code quality, and Agile development.
  • Conduct testing, debugging, and monitoring for reliability and scalability.
  • Participate in code reviews and knowledge sharing.
  • Stay up to date with emerging web and AI/SEO technologies.

Preferred Experience

  • Strong background in JavaScript/React and familiarity with Replit environment.
  • Experience with no-code/low-code backends like Xano (or equivalent API-driven backends).
  • Hands-on integration with OpenAI API (LLMs) and other AI services.
  • Strong understanding of RESTful API design and microservices.
  • Familiarity with workflow automation tools (e.g., n8n, Zapier, Make).
  • SEO knowledge: meta tags, structured data, keyword placement, schema markup.
  • Git or other version control for code management.
  • Nice to have: cloud service knowledge (AWS, GCP, Azure) for scaling/support.
  • Nice to have: experience with subscription-based SaaS and billing integrations (Stripe).

What We’re Looking For

  • A builder who can work end-to-end: from frontend UX to backend APIs.
  • Comfort with scaling SaaS apps across small → enterprise customers.
  • Strong problem-solving skills and attention to detail.
  • Ability to work independently and collaborate in an Agile team environment.

Job Type: Full-time

Pay: $120,000.00 - $140,000.00 per year

Work Location: Hybrid remote in Garden Grove, CA 92840

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