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Hi, I’m Vlad Mihalcea, a Senior Mobile Engineer with 14+ years of building high-performance apps for iOS and Android. I specialize in Swift, Kotlin, and modern architectural patterns like MVVM and Clean Architecture to design scalable, maintainable mobile systems that support large user bases. I also work with Flutter and React Native for cross-platform solutions, integrating complex backend services via REST and GraphQL, and focusing on performance, security, and reliability. I enjoy collaborating with product and backend teams to deliver production-grade software in fast-paced Agile environments.…Hi, I’m Vlad Mihalcea, a Senior Mobile Engineer with 14+ years of building high-performance apps for iOS and Android. I specialize in Swift, Kotlin, and modern architectural patterns like MVVM and Clean Architecture to design scalable, maintainable mobile systems that support large user bases. I also work with Flutter and React Native for cross-platform solutions, integrating complex backend services via REST and GraphQL, and focusing on performance, security, and reliability. I enjoy collaborating with product and backend teams to deliver production-grade software in fast-paced Agile environments.

Vlad Mihalcea

App Developer, Web Developer, Front-End Developer, +2

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Hi, I’m Vlad Mihalcea, a Senior Mobile Engineer with 14+ years of building high-performance apps for iOS and Android. I specialize in Swift, Kotlin, and modern architectural patterns like MVVM and Clean Architecture to design scalable, maintainable mobile systems that support large user bases. I also work with Flutter and React Native for cross-platform solutions, integrating complex backend services via REST and GraphQL, and focusing on performance, security, and reliability. I enjoy collaborating with product and backend teams to deliver production-grade software in fast-paced Agile environments.…Hi, I’m Vlad Mihalcea, a Senior Mobile Engineer with 14+ years of building high-performance apps for iOS and Android. I specialize in Swift, Kotlin, and modern architectural patterns like MVVM and Clean Architecture to design scalable, maintainable mobile systems that support large user bases. I also work with Flutter and React Native for cross-platform solutions, integrating complex backend services via REST and GraphQL, and focusing on performance, security, and reliability. I enjoy collaborating with product and backend teams to deliver production-grade software in fast-paced Agile environments.

Available to hire

Hi, I’m Vlad Mihalcea, a Senior Mobile Engineer with 14+ years of building high-performance apps for iOS and Android. I specialize in Swift, Kotlin, and modern architectural patterns like MVVM and Clean Architecture to design scalable, maintainable mobile systems that support large user bases.

I also work with Flutter and React Native for cross-platform solutions, integrating complex backend services via REST and GraphQL, and focusing on performance, security, and reliability. I enjoy collaborating with product and backend teams to deliver production-grade software in fast-paced Agile environments.

Skills

Experience Level

Expert

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Expert

Language

English

Fluent

Work Experience

Senior Mobile Developer at TechNova

January 1, 2022 - February 1, 2026

Led development of high-performance Android and iOS apps using Kotlin and Swift, applying MVVM and Clean Architecture to improve maintainability. Built cross-platform features with Flutter, designed API communication via GraphQL and REST, and implemented secure authentication and data synchronization with Firebase. Created modular, reusable components following Clean Architecture, optimized memory management and UI rendering for responsiveness, and established automated CI/CD pipelines with Jenkins, Fastlane, and Git to streamline releases. Integrated Firebase Crashlytics for crash reporting and collaborated with backend and product teams to define API contracts and improve data flows.

Senior Mobile Application Developer at Innovatech Systems Technology

January 1, 2019 - December 31, 2021

Developed and maintained cross-platform mobile applications using Flutter, React Native, and Dart; implemented native Android features using Kotlin, RxJava, Room, and Retrofit; integrated WebSockets for real-time updates; built Firebase services for authentication, Cloud Firestore, Cloud Messaging, and Crashlytics; designed modular MVVM and Clean Architecture; collaborated with backend teams to integrate REST APIs and real-time data services; optimized memory usage, network efficiency, and UI rendering; automated CI/CD pipelines using Git-based workflows, Fastlane, and Flutter tooling; participated in code reviews and architecture discussions to improve code quality.

Senior Android Developer at DigitalWave

January 1, 2016 - December 31, 2018

Engineered feature-rich mobile applications using Flutter, React Native, Dart, and JavaScript; implemented location-based functionality using Google Maps SDK for real-time map visualization, route tracking, and geolocation services; integrated REST APIs and WebSockets for data synchronization and real-time updates; leveraged Firebase Authentication, Cloud Messaging, Analytics, and Crashlytics; improved performance through network optimizations and UI rendering improvements; collaborated with backend and product teams to deliver scalable features and reliable integrations.

Android Developer at NextGenApps

June 1, 2014 - December 31, 2015

Designed Android applications using Java and Android SDK; integrated REST APIs and JSON-based services; developed local data storage with SQLite for offline functionality; implemented push notifications; collaborated with backend teams to optimize API usage, network performance, and error handling; maintained Git version control and contributed to testing, debugging, and performance optimization across mobile releases.

Junior Android Developer at Softvision Technologies Pvt ltd

January 1, 2013 - March 31, 2014

Developed Android applications using Java and Android SDK; implemented SQLite for offline data management; integrated JSON-based APIs; participated in debugging and troubleshooting; collaborated with senior developers to follow best practices in Android development, lifecycle management, and modular code design; assisted in testing, optimization, and documentation to support production readiness.