Francisco José Rosso
Villa María, Córdoba, Argentina

Francisco José Rosso

Mobile Engineer & Tech Lead · 7+ Years of Experience

Building robust, scalable, and user-centric mobile applications. Specialized in iOS development with experience across Android, backend, and CI/CD. Passionate about clean architecture, performance, and delivering high-impact solutions.

7+
Years of Experience
12+
Published Apps
6
Countries Served

What I Do

📱

iOS Development

Native iOS apps with SwiftUI and UIKit. From greenfield builds to Objective-C migrations, offline-first architectures, and App Store optimization.

🤖

Android Development

Android apps with Kotlin and Java. Multi-flavour builds, white-label architectures, and Play Store publishing across markets.

Full-Stack & Backend

End-to-end product delivery with Spring Boot, PostgreSQL, and Angular. REST APIs, third-party integrations, and cloud infrastructure.

🏗️

Tech Leadership

Team leadership, architecture decisions, CI/CD pipelines, code reviews, and mentoring. Driving quality with TDD, SonarQube, and agile methodologies.

Professional Experience

Feb 2026 — Present
Senior iOS Engineer
San Francisco, CA — Remote
Working on the iOS app for AllTrails, the world's most popular outdoor navigation platform with 50M+ users. Developing new features and migrating legacy Objective-C code to Swift and SwiftUI.
Jun — Dec 2025
Senior iOS Engineer
Buenos Aires — Hybrid
Developed new features for the Checkout process in PedidosYa, LATAM's leading delivery app with 20M+ users and part of Delivery Hero. Built scalable, backend-driven solutions with UIKit ensuring flexibility across markets.
Nov 2023 — May 2025
Senior iOS Engineer / Tech Lead
Kaufering, Germany — Remote
Led a remote iOS team delivering Hilti CrewCenter, an enterprise workforce management app for the construction industry — enabling time tracking, crew attendance, and jobsite management across multiple locations with offline support and GDPR compliance. Available in 20+ languages. Developed new features and migrated legacy code to SwiftUI with offline-first architecture. Achieved 80%+ test coverage and implemented CI/CD with GitLab.
Jul 2019 — Jul 2025
Mobile Software Engineer / Manager
Córdoba — Remote
Single-handedly built the entire FORZE platform — a smart access control system for hotels now active in 100+ hotels with 5,000+ locks installed and 1M+ managed accesses. Developed both mobile apps (iOS & Android), the Spring/PostgreSQL backend, and the Angular web management panel. The system enables Bluetooth door unlocking, RFID card management, PMS/ERP integration, real-time monitoring, and audit reporting — all running 99.9% uptime in the cloud. Built and maintained multiple white-label app flavours for hotel chains including Wyndham Pettra, Del Bono Hotels, Apartur, and Grand Hotel Río IV. Also developed the Apple Watch app and App Clips for instant access. Expanded to international markets including Chile and Uruguay.
Mar 2022 — Oct 2023
Senior iOS Engineer
Aventura, FL — Remote
Contributed to the core iOS app for Care.com, the world's largest platform for finding and managing family care — connecting millions of families with 17M+ caregivers for child care, senior care, pet care, and housekeeping. Integrated secure payment systems, messaging, and scheduling tools. Migrated legacy UIKit to SwiftUI, improving performance and maintainability.
Jul 2021 — Feb 2022
iOS Engineer
Los Gatos, CA — Remote
Designed and developed iOS features for a secure document organization platform — enabling users to store and manage bank statements, financial records, and important files. Focused on encryption and data security to protect sensitive user information.
May 2018 — Jul 2021
Mobile Developer
Córdoba — Hybrid
Developed Android and iOS apps for América GIS's vehicle tracking platform — a real-time fleet monitoring system rated 4.4★ on Play Store, enabling 24/7 GPS tracking and data visualization with Google Maps SDK. Optimized performance for handling large datasets and real-time map updates. Also built Agis Ventas, an Android app for sales agents to manage orders, collections, and delivery routes with offline-first sync — fully integrated with the company's ERP system for distributors and wholesalers. Contributed to backend (Groovy on Grails) and frontend (Angular) development.
Jun 2017
Intern
Mostar, Bosnia and Herzegovina — On site
Developed a business model for internet services at one of Bosnia's leading telecom providers. Configured network infrastructure and conducted network surveys.

Teaching Experience

Instructor — Introduction to Java Programming

Universidad Tecnológica Nacional — Villa María
Jul — Dec 2021 · Diploma issued by the Ministry of Science and Technology

Why Work With Me

🚀

Ship-to-Store Track Record

12+ apps published across App Store and Play Store for companies like AllTrails, PedidosYa, Care.com, and Hilti — reaching tens of millions of users worldwide.

🔄

Full Product Ownership

I don't just write features — I single-handedly built the entire FORZE platform: iOS & Android apps, Spring/PostgreSQL backend, Angular web panel, Apple Watch app, and App Clips. Now active in 100+ hotels with 1M+ managed accesses.

🌎

Global & Remote Ready

Years of experience working remotely with distributed teams across the US, Germany, Mexico, and LATAM. English C1, IELTS 8.0.

🧹

Clean Code Advocate

80%+ test coverage, SonarQube-driven debt reduction, CI/CD automation, and architecture patterns like MVVM, VIPER, and Clean Architecture.

📐

Migration Specialist

Deep expertise migrating legacy Objective-C and UIKit codebases to modern Swift and SwiftUI, with offline-first and enterprise-ready architectures.

🔐

IoT & Hardware Integration

Bluetooth Low Energy, NFC smart locks, Core NFC, and real-time GPS tracking. Building the bridge between software and the physical world.

Technical Skills

📱 iOS & Swift

SwiftUIUIKitObjective-CCoreData CombineAsync/AwaitARKitCoreML WatchKitApp ClipsMapKitBLE XCTestSwift TestingFastlaneSPM

🤖 Android

KotlinJavaJetpack ComposeRetrofit FirebaseRxJavaDaggerGoogle Maps SDK

⚙️ Backend & Cloud

Spring BootPostgreSQLAWS GrailsAngularJavaScriptPython

🚀 DevOps & Tools

GitLab CI/CDGitHub ActionsJenkins FastlaneBitriseSonarQube SentryCrashlyticsLaunchDarkly

🏗️ Architecture

MVVMMVVM+CVIPERClean Architecture TDDScrumKanbanXP

🌐 Languages

🇪🇸 Spanish — Native 🇬🇧 English — C1 / IELTS 8.0 🇮🇹 Italian — Basic

Published Apps

iOS — App Store

Android — Play Store

What People Say

Francisco has been a key part of the front-end technology development at IUNOK. What sets him apart is not only his technical expertise, but his strong strategic mindset. Fran has a natural ability to quickly identify issues, propose effective solutions, and bridge the gap between technical execution and high-level business objectives. From developers to executive leadership, Fran communicates with clarity and intelligence, ensuring alignment across all levels of the organization.

GC
Guillermo Chávez, MBA
Co-Founder | CEO @ IUNOK

I had the pleasure of working closely with Francisco for nearly two years, and I can confidently say that he is an exceptional professional in the field of iOS app development. Francisco possesses a deep and comprehensive understanding of the Apple ecosystem, which is truly impressive. He consistently demonstrated a remarkable ability to translate his knowledge into tangible results.

BS
Boris Sortino
Senior Mobile Engineer at Utility

I had the pleasure of managing Francisco, a remarkable Sr. iOS Developer. His technical acumen is only surpassed by his kindness and infectious positivity. Always ready to lend a hand, Francisco's vast knowledge and eagerness to help made our team more collaborative and effective. Any team would be elevated with him on board.

JG
Juan Pablo Ghelfi
Technical Manager & Agile Evangelist

I had the pleasure of working with Francisco when he was the iOS Tech Lead at our company. He always showed great patience when teaching things I didn't know, something I value enormously. His position as a technical leader speaks for itself about his ability to lead teams and deliver concrete results in software development. Beyond the technical side, Francisco always brought joy and camaraderie to the work environment.

CM
Conrado Mendez Colomer
iOS Software Development Engineer in Test @ Solvd

Fran is an excellent professional, responsible, smart and proactive, it's a great privilege to work with him, is fully dedicated to his projects and always looking for the best solution. Whether you are looking for a good software development then I've described you where you may find it.

RG
Rodrigo Gras
Sr. Mobile Engineer at Utility

Education

Information Systems Engineer

Universidad Tecnológica Nacional — Villa María
Graduated October 2019 · GPA 8.79/10 · Academic Excellence Mention