Role Title: Full-Stack Developer (Volunteer, Unpaid) Reports To: Director of IT EST. Time Commitment: 5-10 hrs/ per week About Greater IMPACT Church Greater IMPACT Church is a 100% online, Christ-centered ministry committed to sharing the love, truth, and transforming power of Jesus Christ. We are building a faith-filled community and seek skilled professionals who want to make a lasting impact by serving the mission of the church. Engagement Overview The Full-Stack Developer serves as a lead digital architect for our entire ecosystem. This role bridges internal cloud operations with external-facing mobile and web applications. You will be responsible for building lightweight, responsive front-end interfaces and engineering the backend server logic and databases that power them. This role ensures a seamless digital experience for our global community and administrative teams by optimizing Google Apps Script workflows and architecting Google Cloud SQL databases. Scope of Services · Web App Development: Design and deploy responsive web interfaces hosted via Google Apps Script (HTML Service). Mobile Innovation: Develop and maintain cross-platform mobile application features using Flutter (Dart) and optimize iOS-specific experiences using SwiftUI. UI/UX Implementation: Translate wireframes into functional code using modern design trends such as Material 3 and glassmorphic components. API & Logic: Write clean, scalable server-side code in JavaScript (via Google Apps Script) to process data and orchestrate Google Workspace services. Database Management: Structure and maintain data within Google Sheets while laying the groundwork for future migration to relational databases like Google Cloud SQL or PostgreSQL. System Integration: Connect external and internal tools via RESTful APIs to ensure low-latency data retrieval and high performance. Professional Qualifications · Full-Stack Fundamentals: Proven experience developing both client-side applications (HTML/CSS/JS) and server-side business logic. Mobile Proficiency: Experience developing production-ready applications with Flutter (Dart); familiarity with SwiftUI is a strong plus. Google Ecosystem Expertise: Deep understanding of Google Apps Script and Google Workspace API integrations. Database & Cloud Transition: Working knowledge of relational databases (SQL) and basic cloud architecture (GCP). Ministry Heart: A strong commitment to the vision of Greater IMPACT Church, approaching technical excellence as a form of worship.