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Hi, I’m Daniel-Iulian Sabău. I’m a senior Android and mobile engineer with over 10 years of experience building native apps in Kotlin and Java. I lead development across fintech, healthcare, sports, and e-commerce, and I currently run TMZ Software, my own contracting company. I’ve helped large codebases evolve, including starting an incremental migration from XML-based views to Jetpack Compose inside a live production app. Beyond Android, I’ve built cross-platform solutions with Flutter and have enjoyed mentoring teams, coordinating requirements, and delivering reliable software at scale. I value clean architecture, testable code, and collaborating closely with product and design teams to ship features that users love.…Hi, I’m Daniel-Iulian Sabău. I’m a senior Android and mobile engineer with over 10 years of experience building native apps in Kotlin and Java. I lead development across fintech, healthcare, sports, and e-commerce, and I currently run TMZ Software, my own contracting company. I’ve helped large codebases evolve, including starting an incremental migration from XML-based views to Jetpack Compose inside a live production app. Beyond Android, I’ve built cross-platform solutions with Flutter and have enjoyed mentoring teams, coordinating requirements, and delivering reliable software at scale. I value clean architecture, testable code, and collaborating closely with product and design teams to ship features that users love.

Daniel-Iulian Sabău

App Developer, Programmer, Developer, +3

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Hi, I’m Daniel-Iulian Sabău. I’m a senior Android and mobile engineer with over 10 years of experience building native apps in Kotlin and Java. I lead development across fintech, healthcare, sports, and e-commerce, and I currently run TMZ Software, my own contracting company. I’ve helped large codebases evolve, including starting an incremental migration from XML-based views to Jetpack Compose inside a live production app. Beyond Android, I’ve built cross-platform solutions with Flutter and have enjoyed mentoring teams, coordinating requirements, and delivering reliable software at scale. I value clean architecture, testable code, and collaborating closely with product and design teams to ship features that users love.…Hi, I’m Daniel-Iulian Sabău. I’m a senior Android and mobile engineer with over 10 years of experience building native apps in Kotlin and Java. I lead development across fintech, healthcare, sports, and e-commerce, and I currently run TMZ Software, my own contracting company. I’ve helped large codebases evolve, including starting an incremental migration from XML-based views to Jetpack Compose inside a live production app. Beyond Android, I’ve built cross-platform solutions with Flutter and have enjoyed mentoring teams, coordinating requirements, and delivering reliable software at scale. I value clean architecture, testable code, and collaborating closely with product and design teams to ship features that users love.

Available to hire

Hi, I’m Daniel-Iulian Sabău. I’m a senior Android and mobile engineer with over 10 years of experience building native apps in Kotlin and Java. I lead development across fintech, healthcare, sports, and e-commerce, and I currently run TMZ Software, my own contracting company. I’ve helped large codebases evolve, including starting an incremental migration from XML-based views to Jetpack Compose inside a live production app.

Beyond Android, I’ve built cross-platform solutions with Flutter and have enjoyed mentoring teams, coordinating requirements, and delivering reliable software at scale. I value clean architecture, testable code, and collaborating closely with product and design teams to ship features that users love.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Romanian, Moldavian, Moldovan

Fluent

English

Fluent

German

Advanced

Work Experience

Freelance Mobile Developer at TMZ Software (own company)

November 1, 2024 - Present

Independent contractor delivering Flutter and Android projects for clients in the sports, financial and e-commerce sectors. Responsibilities include gathering requirements, providing estimates, building to specification, and reviewing code for quality. Notable projects include: Cycling Lifestyle Brand App (Flutter, Android, iOS, BLoC) – rewrote two native apps into a single cross‑platform codebase; Sports Betting Application (Android, Jetpack Compose, MVVM, MVI, DataStore) – contributed to major betslip redesign, migrated legacy screens to Compose, and implemented data storage; Bank Application POC (Android, Jetpack Compose, FlowX, Room, DataStore) – led a two‑month proof‑of‑concept with offline data caching and robust error handling; Investment Application (Flutter, Android, iOS, BLoC); Emerald Road (Web3 / e-Commerce) – improved performance, reduced bugs, and ensured reliable blockchain communication.

Mobile Developer at TMZ Software

January 1, 2024 - Present

Develop native Android and iOS applications; collaborate with design and product teams; implement features, maintain code quality, and publish to stores. Built cross‑platform capabilities and contributed to architecture decisions; focused on performance, UI accuracy, and user experience.

Android Senior Software Engineer at Cognizant

January 1, 2022 - November 1, 2024

Maintained and extended a large native Android codebase (Java/Kotlin) used by doctors and hospital staff. Integrated legacy MVP components with modern Jetpack Compose, migrating toward MVVM while preserving live functionality. Managed local persistence with SharedPreferences and SQLite, and used WorkManager for background tasks. Implemented a more secure messaging system and improved overall messaging performance.

Head of Mobile Development at Cognizant

January 1, 2022 - January 1, 2024

Led mobile development teams (Android and iOS) across projects in health care, finance, and enterprise domains; drove architecture decisions, mentored engineers, and ensured high‑quality deliverables with pixel‑perfect UI and robust transactions.

Head of Mobile Development at Deventure

January 1, 2019 - January 1, 2022

Led the mobile practice across multiple projects (navigation, finance, delivery, e-commerce, AR). Delivered projects on time with strong client feedback, managed distributed teams, gathered requirements, provided estimates, and published apps to the App Store and Play Store.

Senior Software Engineer at Cognizant

January 1, 2019 - January 1, 2022

Developed native Android and iOS apps; contributed to cross‑platform solutions; implemented features, tested, and collaborated with multi-disciplinary teams. Helped shape mobile application delivery and code quality.

Mobile Developer at Deventure

January 1, 2015 - January 1, 2019

Developed native Android (Java) and iOS applications and Xamarin apps using classic Android components. Published solutions to the stores and contributed across healthcare, aviation, finance, and recruiting domains.

Mobile Developer

January 1, 2015 - January 1, 2019

Developed native Android applications; collaborated with teams to deliver mobile features; participated in design and delivery across multiple projects.