Ankit Kumar
Verified Expert in Engineering
Mobile and Back-end Developer
Bengaluru, India
Toptal member since August 14, 2026
Ankit is a senior mobile engineer with 12+ years of experience building scalable mobile applications across logistics, fintech, transportation, and enterprise domains. He specializes in Flutter, React Native, Android, Kotlin, and iOS, with expertise in mobile architecture, performance optimization, API integration, and cross-platform development.
Portfolio
Experience
- Android - 12 years
- Mobile Applications - 12 years
- Mobile Development - 12 years
- React Native - 10 years
- Flutter - 9 years
- Kotlin - 8 years
- iOS - 8 years
- Java - 8 years
Preferred Environment
Agile, Java, Flutter, Kotlin, React Native, Android, iOS, Kotlin Multiplatform Mobile (KMM), Dart, API Integration, CSS, Billing, Amazon Web Services (AWS), Integrations
The most amazing...
...thing I've built is a real-time logistics platform connecting drivers and customers, transforming shipment tracking across critical transportation operations.
Work Experience
Technical Lead
Saksoft Ltd
- Led a cross-functional engineering team of 10 to 12 developers, owning architecture decisions, sprint planning, and end-to-end delivery across Android, Flutter, FlutterFlow, and React Native projects.
- Drove Agile and Scrum delivery as a module lead, coordinating with product management and QA teams to ship features on schedule across multiple concurrent mobile applications.
- Championed the adoption of AI-assisted development workflows using Claude and related LLM tools to accelerate code review, refactoring, and technical documentation, improving team velocity and code quality.
- Owned technical architecture and design-pattern decisions (MVC, MVP, BLOC, Clean Architecture) across the mobile engineering portfolio, including REST API integration strategy for client-server communication.
Team Lead
Freelance Clients
- Developed and enhanced cross-platform mobile features for Doodle – Easy Scheduling, using React Native and TypeScript, supporting a product used by 5+ million users across Android and iOS.
- Implemented REST API integrations and asynchronous data flows to support scheduling, user interactions, and synchronization between the mobile application and back-end services.
- Optimized application performance and code maintainability by improving component reuse, reducing unnecessary rendering, and following modular TypeScript-based development practices.
- Collaborated with product, design, and back-end teams to deliver production-ready mobile features and enhancements for a high-scale scheduling platform with 5+ million users.
Senior Flutter Developer
Freelance Client
- Developed cross-platform mobile features using Flutter and Dart for a driver and fleet-management application supporting load assignments, mileage, fuel, settlements, availability, and operational workflows.
- Implemented REST API integrations and data-driven dashboards for displaying loads, miles, fuel, settlements, active-load status, and historical activity across weekly, monthly, and pay-period views.
- Built safety-reporting workflows that enabled drivers to submit breakdown and accident reports with GPS location, photos, and supporting details, improving the digital reporting process.
- Implemented role-based mobile experiences for drivers, fleet owners, and owner-operators, providing access to fleet tracking, driver activities, load assignments, safety reports, and settlement information based on user responsibilities.
- Collaborated with product, backend, QA, and business stakeholders to translate transportation and fleet-management requirements into production-ready mobile features.
Senior Developer
Database Infotech Pvt Ltd
- Designed application architectures using MVP and MVC design patterns for enterprise mobile applications.
- Built hardware-integrated Android applications, including Bluetooth scanners and mobile printers, for enterprise clients.
- Designed and developed in-house mobile applications for automotive service management, enabling seamless vehicle pickup and drop scheduling, service request tracking, customer notifications, and technician coordination.
Android Developer
Aqwire Mobile Applications
- Developed native Android applications from UI implementation through back-end API integration.
- Built custom camera and hardware integration features for client-facing mobile applications.
- Architected production-ready native Android applications from concept to deployment, implementing responsive user interfaces, RESTful API integrations, local data storage, and custom camera features.
Experience
TransUnion CIBIL App
https://play.google.com/store/apps/details?id=com.transunion.hkmobileDoodle – Easy Scheduling
Bolt-Express Driver App
https://play.google.com/store/apps/details?id=com.boltexpress.driverconnectEducation
Master's Degree in Computer Science
Mahamaya Technical University - Greater Noida, India
Bachelor's Degree in Computer Applications
Chaudhary Charan Singh University - Meerut, India
Certifications
AI Fluency: Framework and Foundations
Anthropic
Skills
Libraries/APIs
Node.js, React, REST APIs, Stripe, WebRTC, Claude API, GetX
Tools
Claude, Auth0, Expo
Languages
Java, Kotlin, JavaScript, TypeScript, CSS, Swift, HTML, Dart, SQL
Frameworks
Flutter, React Native, Next.js, Tailwind CSS, OAuth 2, Express.js
Paradigms
Clean Architecture, Agile, Scrum, Mobile Development, Microfrontends, Role-based Access Control (RBAC), HIPAA Compliance
Platforms
Android, FlutterFlow, iOS, Firebase, Mobile, Android TV, Amazon Web Services (AWS)
Storage
SQLite, PostgreSQL, MySQL
Industry Expertise
Project Management
Other
MVC Frameworks, Express, CI/CD Pipelines, Full-stack Development, Fractional CTO, Leadership, Technical Leadership, APIs, Cross-platform App Development, Kotlin Multiplatform Mobile (KMM), React Hooks, Architecture, System Architecture, User Experience (UX), User Interface (UI), Front-end Development, Full-stack, API Integration, Mobile Applications, Front-end, Web Applications, Code Review, Attention to Detail, Communication, Written Communication, Team Leadership, Screeners, Payment Gateways, Webhooks, Integration, MVP Design, Billing, Google Play Store, Mobile App Development, Development, Technical Project Management, Meetings, Finance, Logistics, In-app Purchase (IAP), Analytics, In-app Purchases, App Store Acceptance Process, Performance, Push Notifications, User Authentication, Subscription Management, Security, Scalability, Subscriptions, Technical Documentation, Authentication, Lovable, Authorization, Android Development, Speech-to-Text (STT), Third-party APIs, Data Encryption, Cloud Infrastructure, Application Security, Source Code Review, AI Tools, Open Source, Data Analysis, Fintech, Data Visualization, AI Agents, Agentic AI, Integrations, Offline Data Synchronization, Agentic Coding, Kotlin Multiplatform, Artificial Intelligence (AI), Vite, Supabase, Large Language Models (LLMs), Minimum Viable Product (MVP), Bluetooth, Applications, AI
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