JavaScript Full-Stack Engineer

Wartraf is seeking a JavaScript Full-Stack Engineer to join their Apps Factory product team. The role focuses on building internal platforms that automate creative production, ad campaigns, and growth operations for mobile subscription apps across multiple verticals including utilities, health, education, and AI tools.

• Build and maintain full-stack applications using JavaScript, Vue/React, and Node.js
• Develop APIs, microservices, and serverless functions on GCP / Firebase
• Build Web-to-App / Web-to-Web landing builders and CMS for mobile and web products
• Implement automation for creative workflows and programmatic campaign operations
• Maintain high code quality, reliability, observability, and CI/CD standards
• Collaborate closely with Data, ML, Product, UA, and Creative teams

Required:

• Strong proficiency in JavaScript
• Experience with Node.js
• Experience with Vue or React
• Experience with GCP / Firebase (Cloud Functions, Firestore, Cloud Run)
• Experience with SQL / NoSQL databases (Firestore, MongoDB)
• Experience with analytical databases (BigQuery or ClickHouse)
• Deep understanding of APIs, microservices, and event-driven architectures
• Strong ownership mindset and ability to work cross-functionally

Nice to have:

• Experience with React Native (mobile development)
• Experience with payment services (Stripe / PayPal)
• Experience working with ad platform APIs (Meta / Google)
• Experience with marketing or payment analytics
• Experience with AppsFlyer, Adapty, or RevenueCat