App Senior Developer I Full Time – Avnzor

Avnzor is a Saudi-based, app-first health, beauty, and wellness platform built for the modern GCC consumer. Inspired by the legacy of Ibn Zuhr (Avenzoar), Avnzor combines trust, authenticity, and technology to deliver premium products with local fulfillment, seamless payments, and a high-performance digital experience.

We are building a scalable mobile commerce ecosystem designed to handle 60,000+ SKUs, complex payment integrations (Mada, Apple Pay, Tabby, BNPL), and high transaction volumes. Our ambition is to become one of the leading digital health & wellness platforms in the Kingdom, competing with major regional players through superior app performance, customer experience, and technology execution.

Role Description

This is a full-time, on-site role located in Riyadh for an App Senior Developer at Avnzor.

This role is heavily focused on mobile app architecture, performance optimization, and scalable ecommerce development. The App Senior Developer will take ownership of designing, developing, and continuously improving Avnzor’s mobile applications (iOS & Android).

You will be responsible for:

• Leading end-to-end mobile app development (architecture → build → deployment → iteration)
• Writing clean, scalable, production-grade code
• Building and optimizing high-performance ecommerce flows (catalog, cart, checkout, payments)
• Integrating APIs (Shopify, custom backend, OMS, WMS, payment gateways, loyalty systems)
• Optimizing app speed, stability, and crash reduction
• Managing CI/CD pipelines and release cycles
• Ensuring secure payment integration and compliance
• Monitoring performance metrics and continuously improving conversion

This is not a maintenance role — this is a build-and-scale role for a high-growth ecommerce platform.

Qualifications

• Proven track record of building and scaling production mobile applications (ecommerce apps preferred)
• Strong expertise in Flutter / React Native or native Swift (iOS) & Kotlin (Android)
• Demonstrated experience delivering apps with 50K+ downloads or high transaction volumes
• Deep understanding of mobile architecture, state management, and performance tuning
• Experience integrating payment SDKs (Apple Pay, Mada, BNPL, payment gateways)
• Strong API integration experience (REST / GraphQL)
• Experience with Firebase, analytics, crash reporting, and performance monitoring tools
• Knowledge of secure coding practices and app store deployment processes
• Strong database and backend integration knowledge
• Excellent problem-solving ability and ownership mindset
• Bachelor’s degree in Computer Science, Software Engineering, or related field

What We’re Looking For

We are looking for someone who has already built and shipped real apps, understands ecommerce conversion logic, and can architect for scale — not just someone who can code features.

You should be comfortable handling:

• High SKU catalogs
• Complex shipping and tax logic
• Coupon engines
• Payment retries and authorization optimization
• Real-time inventory syncing