Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I'm Victor Barros, a seasoned mobile designer and developer with extensive experience across iOS, tvOS, macOS, watchOS and Android. I enjoy shaping architecture, shipping robust features, and delivering delightful user experiences using Swift, Objective-C, Kotlin and Java. I value clean code, performance, and scalable mobile backends. Lately I’m exploring machine learning and deep learning, and I’m expanding into React, React Native, Flutter, Python, Rust, WebAssembly and Kotlin Multiplatform to build cross‑platform solutions. I’m excited by problems in fraud detection, security, and modern cloud-backed mobile architectures.…I'm Victor Barros, a seasoned mobile designer and developer with extensive experience across iOS, tvOS, macOS, watchOS and Android. I enjoy shaping architecture, shipping robust features, and delivering delightful user experiences using Swift, Objective-C, Kotlin and Java. I value clean code, performance, and scalable mobile backends. Lately I’m exploring machine learning and deep learning, and I’m expanding into React, React Native, Flutter, Python, Rust, WebAssembly and Kotlin Multiplatform to build cross‑platform solutions. I’m excited by problems in fraud detection, security, and modern cloud-backed mobile architectures.

Victor Barros

App Developer, Developer, Full Stack Developer, +3





I'm Victor Barros, a seasoned mobile designer and developer with extensive experience across iOS, tvOS, macOS, watchOS and Android. I enjoy shaping architecture, shipping robust features, and delivering delightful user experiences using Swift, Objective-C, Kotlin and Java. I value clean code, performance, and scalable mobile backends. Lately I’m exploring machine learning and deep learning, and I’m expanding into React, React Native, Flutter, Python, Rust, WebAssembly and Kotlin Multiplatform to build cross‑platform solutions. I’m excited by problems in fraud detection, security, and modern cloud-backed mobile architectures.…I'm Victor Barros, a seasoned mobile designer and developer with extensive experience across iOS, tvOS, macOS, watchOS and Android. I enjoy shaping architecture, shipping robust features, and delivering delightful user experiences using Swift, Objective-C, Kotlin and Java. I value clean code, performance, and scalable mobile backends. Lately I’m exploring machine learning and deep learning, and I’m expanding into React, React Native, Flutter, Python, Rust, WebAssembly and Kotlin Multiplatform to build cross‑platform solutions. I’m excited by problems in fraud detection, security, and modern cloud-backed mobile architectures.

Available to hire

I’m Victor Barros, a seasoned mobile designer and developer with extensive experience across iOS, tvOS, macOS, watchOS and Android. I enjoy shaping architecture, shipping robust features, and delivering delightful user experiences using Swift, Objective-C, Kotlin and Java. I value clean code, performance, and scalable mobile backends.

Lately I’m exploring machine learning and deep learning, and I’m expanding into React, React Native, Flutter, Python, Rust, WebAssembly and Kotlin Multiplatform to build cross‑platform solutions. I’m excited by problems in fraud detection, security, and modern cloud-backed mobile architectures.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Portuguese

Fluent

Spanish; Castilian

Intermediate

Work Experience

Senior iOS Software Engineer at Oscilar

August 1, 2024 - Present

Designing and developing the Oscilar iOS SDK and iOS backend API from scratch as part of Oscilar’s Device and Behavior solution for fraud detection in cybersecurity, such as in financial institutions.

Senior Mobile Software Engineer at Brightwell

May 1, 2023 - August 1, 2024

Designing and developing the Brightwell Navigator mobile app for iOS and Android, leveraging Swift, Combine, SwiftUI, and Kotlin/Jetpack; implementing CI/CD with Azure, GitHub Actions, App Center and Bitrise.

Senior Mobile Software Engineer at F5

August 1, 2022 - April 1, 2023

Designing and developing the mobile SDK to secure F5’s customers’ mobile applications and their communication with backend APIs; technologies include C/C++, Objective-C, Swift, Kotlin, Java, Python; reverse engineering, ARM assembly, cryptography, hashing, compression/decompression; CI/CD with GitLab.

Staff Mobile Software Engineer at Indigo AG

July 1, 2020 - July 1, 2022

Designing and developing the Marketplace iOS app; responsible for important architecture decisions and improvements toward quality, performance, user experience, and CI/CD.

Mobile Software Engineer at The Walt Disney Company

January 1, 2020 - July 1, 2020

Developing a library for iOS and Android to provide a Single-Sign-On experience across Disney companies (Disney Parks, ESPN, Fox, ABC, etc.); technologies included Objective-C, Swift, Java, Kotlin; Needle, Dagger, WebKit, Retrofit; CI/CD with GitLab.

Mobile Software Engineer at Kinvey

March 1, 2015 - October 1, 2019

Developing a client library for iOS to communicate with Kinvey’s REST API; handling cache synchronization, mobile identity, secure persistence, push notifications, background threading and user sessions.

Founder at HZ APPS

January 1, 2010 - December 1, 2019

Founded HZ Apps to deliver mobile apps for clients including Yahoo Brazil, PayPal Brazil, SBT, Band TV, Pepsi, Fan-ta, Voetbal.NL, Isabella Stewart Gardner Museum and Sweet Systems; led projects end-to-end.

iOS Developer at Boeing Canada-AeroInfo

September 1, 2014 - March 1, 2015

Worked on an iOS project that adds value to Boeing’s products and services; technologies included Objective-C, Swift, Xcode, Java, JEE, JSON, WebSockets, Server Sent Events, Core Data; OpenGL, Bonjour, AngularJS, HTML5.

iOS & Android Developer at Atimi Software

January 1, 2013 - September 1, 2014

Mobile Developer for both iOS and Android; built a brand new Android app for a set-top box; maintained iOS and Android apps; contributed to Atimi’s Mobile Sports Framework used by NHL, CFL, MLS, NBA.

MacOS & iOS Developer at OfficDrop

March 1, 2011 - June 1, 2012

Developed ScanDrop, a Mac app to scan documents and upload to the cloud; contributed to edge-detection feature for scanned documents using OpenCV; remote collaboration.

Java & Android Developer at Atlântico Institute

January 1, 2010 - March 1, 2011

Mixed experiences; contributed to projects including Sony Ericsson devices, and web app to manage optical fiber networks; used JSF, JBoss Seam, RichFaces, EJB 3, RMI.

Mobile Developer at Softsite Technology

August 1, 2005 - December 1, 2010

Developed a mobile suite for sales force, sales management and inventory management across thousands of users; used JavaME, JavaEE and other cross-platform solutions.

MacOS & iOS Developer at OFFICEDROP

March 1, 2011 - June 30, 2012

Developed ScanDrop, a Mac app to scan documents and upload to the cloud; assisted a team to implement document edge detection using OpenCV on iOS.