Staff Engineer (Flutter)

About Vajro

Vajro is a SaaS startup revolutionizing how modern e-commerce brands connect with their customers through mobile-first experiences. We empower thousands of e-commerce brands worldwide with our app builder, enhanced by cutting-edge social commerce, customer retention analytics, and community engagement tools that transform mobile presence from afterthought to loyalty driver.

We create a comprehensive ecosystem where brands don't just build mobile apps, they build relationships with their customers.

The Opportunity

We're looking for a Staff Flutter Engineer who will lead our mobile platform initiatives and drive the technical vision for Flutter development across our entire product suite. You'll be responsible for architecting a scalable Flutter platform that powers thousands of dynamically rendered mobile apps, while staying at the forefront of Flutter ecosystem advancements and incorporating cutting-edge developments into enterprise-ready solutions.

This is a senior technical leadership role where you'll shape the future of mobile engineering, mentor engineering teams, and solve complex architectural challenges.

What You'll Build

Flutter Platform Architecture

• Architect scalable Flutter frameworks that support thousands of dynamically generated mobile apps with unique branding and functionality
• Design modular component systems and widget libraries that enable rapid app customization while maintaining performance standards
• Build advanced widget generation systems that transform visual markups into enterprise-grade Flutter applications
• Develop sophisticated state management solutions that handle complex e-commerce workflows and real-time data synchronization
• Create performance optimization frameworks that ensure consistent app performance across diverse device capabilities and network conditions

Advanced Mobile Features

• Implement cutting-edge Flutter capabilities, including custom render objects, remote widgets, platform channels, and native integrations
• Build real-time social commerce features like live streaming, interactive shopping, and community engagement systems
• Develop advanced personalization engines that deliver dynamic content and tailored user experiences
• Create sophisticated offline-first architectures with intelligent data synchronization and conflict resolution
• Design push notification systems, deep linking frameworks, and seamless app-to-app communication patterns

Platform Engineering Excellence

• Lead the adoption of the latest Flutter developments, evaluating and integrating new packages, features, tools, and architectural patterns
• Build comprehensive testing frameworks, CI/CD pipelines, and automated quality assurance systems for Flutter applications
• Create developer tools, debugging utilities, and productivity enhancements that accelerate team velocity
• Establish performance monitoring, crash reporting, and analytics systems that provide actionable insights across thousands of apps

Cross-Platform Integration

• Architect seamless integration layers between Flutter apps and backend APIs, ensuring optimal data flow and caching strategies
• Build platform-specific optimizations for iOS and Android while maintaining code reusability and consistency
• Develop sophisticated analytics and tracking systems that provide detailed insights into user behavior and app performance

What We're Looking For

Mobile Development Mastery

• 10+ years of mobile development experience with deep expertise across iOS, Android, and cross-platform technologies
• 4+ years of Flutter development with a proven track record of building and scaling production Flutter applications
• Platform architecture experience, including designing scalable mobile frameworks, component libraries, and development tools
• Advanced Dart programming with expertise in async programming, memory management, and performance optimization
• Native mobile integration experience with platform channels, native modules, and seamless iOS/Android interoperability

Flutter Ecosystem Expertise

• State management mastery across multiple solutions (Provider, Riverpod, Bloc, GetX) with the ability to architect scalable state solutions
• Custom widget development, including custom painters, remote widgets, render objects, and complex UI components
• Flutter architecture patterns with a deep understanding of clean architecture, MVVM, and scalable app organization
• Performance optimization, including widget rebuilds, memory management, and app size optimization techniques

Platform Engineering Skills

• No-code platform development with visual app builders, drag-and-drop interfaces, or configuration-driven UI generation
• Developer tooling experience creating productivity tools, debugging utilities, and development workflow improvements
• CI/CD expertise with Flutter-specific build pipelines, automated testing, and deployment strategies
• Multi-tenant architecture understanding of building platforms that serve thousands of customized applications
• Testing excellence including unit testing, widget testing, integration testing, and automated quality assurance

Technical Leadership

• Cross-platform expertise with deep understanding of mobile platform differences and optimization strategies
• Security implementation with experience in app security, data encryption, and compliance requirements
• Performance monitoring using tools like Firebase Performance, Crashlytics, and custom analytics implementations

Good To Have

Specialized Experience

• Mobile commerce experiences — from cart/checkout and secure payments to dynamic catalogs, social selling, and data-driven analytics.
• Live streaming technology with experience in video streaming, real-time interaction, and social commerce features
• E-commerce platform expertise with deep knowledge of Shopify, WooCommerce, and major e-commerce APIs
• Social features development including chat systems, community building, and user-generated content platforms
• Machine learning integration for personalization, recommendation systems, or intelligent app features

Advanced Technical Skills

• Flutter Web/Desktop development with experience in expanding Flutter beyond mobile platforms
• DevOps and infrastructure with experience in mobile app deployment, monitoring, and maintenance at scale
• Open source contributions to Flutter packages, core framework, or mobile development tools

Why Join Us?

• Our Culture: We are a 50-member team that loves to play just as hard as we work.
• Unlimited Leaves: Your paid time off has no limit. Our only ask is for you to take accountability for your work.
• Health Insurance: 1+5 family health insurance with up to 5L coverage. Additional floater plans are available for low rates.
• Ownership: At Vajro, we look for people who don’t just do the work, but own it end to end. You see an idea through, you stand by it—that’s the kind of spirit we admire.
• Role Scalability: We’re driven by solving problems that can help us empower the e-commerce domain. That means listening closely, spotting the real pain points, and building experiences that bring an impactful and positive experience to our customers.
• Globally Spread Team: You will have the opportunity to travel overseas and work for Vajro globally.
• Employee-Friendly Salary Structure: We have built a salary structure that will help you save on your taxes. Allowances for food, fuel, gym, HRA, etc., will make your life a whole lot easier when it comes to ITRs.