04/29/2026 updated

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Senior Android Developer & Kotlin/KMP Specialist

Bistrita, Romania
Only remote
Master's Degree in Distributed Systems
Bistrita, Romania
Only remote
Master's Degree in Distributed Systems

Profile attachments

CV.pdf

About me

Senior Android/KMP Engineer with 10+ years of experience delivering high-scale enterprise apps (SAP). Proficient in Kotlin Multiplatform, performance optimization (94% load-time reduction), and clean architecture. I deliver business impact through technical autonomy and async reliability.

Java (Programming Language)Android (Software)Android Software DevelopmentAndroid StudioMobile Application DevelopmentData ArchitectureMobile Device ManagementDevice ManagementGoogle FirebaseKotlin
Professional Profile
I am a Senior Android Engineer with over 10 years of experience specializing in high-scale enterprise applications and complex mobile architectures. My core expertise lies in building scalable systems, driving performance engineering, and implementing production Kotlin Multiplatform (KMP) solutions. Having spent a significant part of my career at SAP, I have a proven track record of delivering robust mobile solutions for global industry leaders.
Technical deep-dive
1. Android & Cross-platform architecture
  1. Kotlin Multiplatform (KMP): Architect and sole developer of a production KMP shared library powering business logic across Android, iOS, and Windows, to reduce maintenance costs.
  2. Modern Android stack: Proficient in Kotlin, Jetpack Compose, Coroutines, and Flow. I advocate for Clean Architecture and MVVM patterns, with focus on Feature-based modularization for large-scale projects.
  3. Legacy modernization: Extensive experience in refactoring and migrating massive Java codebases to Kotlin, maintaining application stability during major transitions.
2. Performance engineering
  1. Algorithmic optimization: I have a track record of solving extreme performance bottlenecks. Notably, I optimized a dynamic form engine ("Smartforms") handling 4,000+ elements with JS-logic, reducing load times from 100 seconds to under 6 seconds.
  2. Database & storage: Advanced SQL optimization for high-volume local data; I reduced critical search query execution from 40s to <1s through strategic indexing and data architecture refactoring.
  3. Resource profiling: Expert use of Android Profiler to monitor memory leaks, battery consumption, and network overhead, ensuring high performance on rugged enterprise devices.
3. Enterprise security
  1. Security standards: Implementation of SQLCipher for encrypted databases, Encrypted SharedPreferences, and certificate pinning. Experienced in mitigating vulnerabilities identified through penetration testing.
  2. MDM: Knowledge of Android Enterprise requirements and integration with Mobile Device Management (MDM) systems like AirWatch.
  3. Code protection: ProGuard and R8 to secure intellectual property and reduce APK size.
4. Quality assurance & DevOps
  1. Testing culture: Unit Testing (JUnit, Mockito), PowerMockito, and UI Automation (Espresso).
  2. CI/CD pipelines: GitHub Actions, Jenkins, and Fastlane, including automated distribution via Firebase App Distribution.
  3. Post-release monitoring: Proactive stability management using Dynatrace and Firebase Crashlytics to maintain crash-free rates.
Soft skills
  1. Technical ownership: I am accustomed to taking full ownership of complex features, from initial POC to final production release, with minimal supervision.
  2. Async collaboration: I prioritize proactive communication, clear status updates, and comprehensive technical documentation in Jira and Confluence.
  3. Leadership: Experienced in leading technical calls, conducting deep-dive code reviews, and performing technical interviews.

Experience

Professional experience0 - 5 years
Freelancer since2025

Languages

EnglishFluentRomanianNative speaker

Project history

Senior Android Developer

SAP
Entwicklung und Architektur der SAP Field Service Management Plattform. Erstellung einer KMP-Shared-Library fuer Android, iOS und Windows. Performance-Optimierungen (94% Verbesserung der Ladezeit), Datenbankoptimierungen, Play-Store-Rating-Verbesserung von 2.99 auf 3.72+, Migration von Java zu Kotlin, Code-Review-Standards, AI-Use-Case-Integrationen sowie technische Interviews und Teamfuehrung.

Senior Android Developer - Contractor

SAP (formerly Coresystems)
Fortsetzung der Arbeit an SAP Field Service Management als unabhaengiger Auftragnehmer nach der Akquisition. Sicherheitsaudit und Haertungsinitiative (SQLCipher, Penetration Testing), Integration von Android Enterprise und AirWatch MDM, Architekturverantwortung und grosse Refactoring-Massnahmen.

Android Developer

Rodeapps
Entwicklung von Android-Applikationen fuer mehrere Berliner Startups (Kweekweek, Shopkin, Movmnt, Coresuite). Full-Cycle-Entwicklung von Anforderungsanalyse bis Deployment, MVP-Prototyping, Integration von Drittanbieter-SDKs (Stripe, Firebase, Google Maps) sowie Aufbau von CI/CD-Pipelines.

Junior .NET Developer

TSS-Yonder
Entwicklung benutzerdefinierter UI-Komponenten fuer PinkRoccade PsygisQuarant (WPF-Plattform fuer Krankenhaeuser in den Niederlanden). Grundlegende Erfahrungen in Enterprise-Software, QA-Prozessen und teamuebergreifender Zusammenarbeit.

Certificates

Ethical Hacking: Mobile Devices and Platforms

SAP

2023

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