Vaibhav Khatri
Staff iOS Engineer with 13+ years of experience building scalable mobile applications across fintech, IoT, and consumer products.
I specialize in:
- Swift & SwiftUI
- Scalable iOS architecture
- Performance optimization
- Concurrency & memory management
- BLE integrations
- CI/CD and modularization
- AI-assisted development workflows (Codex, Cursor, Claude Code, Copilot)
I’ve led critical initiatives for fintech systems handling high-volume transactions, architected BLE communication layers for IoT products, and guided engineering teams through large-scale app refactors and rebranding efforts.
I can help with:
- Debugging difficult production issues
- Architecture reviews
- Scaling iOS codebases
- Interview preparation for senior/staff roles
- AI-first development workflows
- Code reviews and performance optimization
- Swift concurrency and clean architecture
My mentoring style is practical and outcome-focused — helping engineers move faster while improving code quality and maintainability.
REVIEWS FROM CLIENTS
Experian (Fintech & Billing): Took ownership of the client-side architecture for a revenue-critical billing module, ensuring stric...
Experian (Fintech & Billing): Took ownership of the client-side architecture for a revenue-critical billing module, ensuring strict transactional integrity and reliability for high-volume daily transactions. Engineered sophisticated edge-case handling and robust local state management to guarantee data accuracy during high-stakes financial checkouts.
• Audi on demand (T eam Leadership & Rebranding): Led a team of 7 engineers through a full-scale architectural overhaul and app rebranding. Successfully coordinated cross-functional delivery between backend and product teams, managing technical debt and ensuring a seamless rollout on schedule.
• Fi.money (Fintech & Investments): Directed the implementation of advanced investment discovery and search features, optimizing for high-performance data filtering. Collaborated closely with backend teams to finalize and implement Protocol Buffers (Protos), creating a type-safe, low-latency communication layer for real-time financial updates.
• Ember (IoT & Connectivity): Engineered high-performance Bluetooth Low Energy (BLE) connectivity solutions, optimizing hardware-to-app communication protocols for real-time synchronization and a seamless user experience.
• Engineering Standards & Mentorship: Raised the technical bar for the iOS organization by creating a high-level technical interview framework and question bank used to evaluate senior candidates on advanced system design, concurrency, and memory management.
• AI-Augmented Productivity: Championed the integration of AI tools and agentic workflows to automate boilerplate implementation and accelerate complex refactoring tasks. Established modern standards for AI-assisted PR reviews to maintain high code quality across the team.