[Hiring] Mobile App Developer @Zion Church

Role Description

We're looking for a skilled Mobile App Developer to join our team and help build the next generation of AI-powered mobile experiences. This role requires deep native and cross-platform mobile expertise, combined with hands-on experience building, integrating, and optimizing AI-driven features inside production mobile apps. You'll be responsible for building and maintaining both the mobile client experience and its connection to the AI models and services that power it.

Essential Duties

• Core Mobile Development
  • Develop and maintain mobile applications for iOS and Android platforms.
  • Build new features for Pocket Discipleship, including user-facing interfaces, local data handling, offline support, and integration with backend and AI services.
  • Conduct bug fixes and refactor code to improve app performance, stability, and responsiveness.
  • Consume and help design robust APIs to facilitate communication between the mobile app, backend services, and AI models.
  • Work closely with product managers and designers to translate product requirements into technical specifications and a polished mobile user experience.
  • Participate in the entire mobile development lifecycle, from concept and design to app store deployment and maintenance.
• AI Integration
  • Collaborate closely with our AI team to integrate AI models and services directly into the mobile experience, including LLM-powered chat and conversational features, recommendation engines, and personalization systems.
  • Build mobile-side logic to consume AI model outputs in real time, including handling streaming responses, latency, and graceful fallback when AI services are unavailable.
  • Optimize on-device performance for AI-powered features, balancing responsiveness, battery usage, and data consumption.
  • Implement and maintain prompt-based or model-driven UI states, ensuring the interface can adapt to dynamic, AI-generated content.
  • Work with the AI team to test, validate, and iterate on AI feature behavior from the mobile client's perspective, including edge cases and unexpected model outputs.
  • Stay current on mobile-specific AI tooling and SDKs and recommend where they can improve app performance or reduce dependency on server calls.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related field.
• 5+ years of professional experience in mobile application development.
• Proficiency in mobile frameworks such as Swift/SwiftUI, Kotlin/Jetpack Compose, React Native, or Flutter.
• Demonstrated, hands-on experience integrating AI/ML models or AI-powered services into mobile applications.
• Familiarity with consuming LLM APIs from a mobile client.
• Working knowledge of on-device machine learning tools such as Core ML, ML Kit, TensorFlow Lite.
• Expertise in consuming backend APIs built with languages such as Python, Node.js, or Java.
• Strong experience with local and remote database technologies (SQLite, Core Data, Realm, and cloud-backed SQL/NoSQL).
• Experience with cloud platforms such as AWS, Azure, or GCP, including AI/ML services.
• Manage app store deployment pipelines, CI/CD automation, and mobile release processes.
• Experience writing and maintaining unit tests, UI tests, and automated test suites.
• Competence in mobile monitoring and crash reporting tools.
• Deep knowledge of secure coding practices, vulnerability mitigation, and encryption techniques on mobile platforms.

Preferred Qualifications

• Prior experience shipping a consumer-facing mobile app with a chat-based or conversational AI feature.
• Experience with vector databases or retrieval-augmented generation (RAG) patterns.
• Familiarity with prompt engineering fundamentals.
• Experience with A/B testing or feature flagging systems specifically for iterating on AI-driven features.

Benefits

• Health, vision, dental, and life insurances; many funded at 90-100% by the organization.
• Selection of elective benefits.
• Education reimbursements for upskilling, degree pursuit, and certifications.
• 401K plan for full and part-time team members with company matches.
• Unlimited PTO for full-time team members.
• 60-hours of PTO for part-time team members prorated depending upon a start date.

Company Description

It is the mission of Zion Church to help people EXPERIENCE God, ENGAGE in connections, be EQUIPPED through training, and EMPOWERED to serve.

All new team members at Zion Church complete a 90-day probationary period. During this time, supervisors assess performance, job readiness, and alignment with Zion’s employment standards.

Zion Church is an equal employment opportunity to all employees and applicants for employment. Zion prohibits discrimination and harassment of any type.