Francois Raminosona

Francois Raminosona

Senior .NET Mobile Engineer

Senior .NET Mobile Engineer with 12+ years of expertise in cross-platform development and technical leadership. Specialized in Xamarin/.NET MAUI, C#, and Azure cloud technologies with a proven track record of delivering innovative mobile solutions for healthcare and enterprise clients. Expert in Bluetooth stack integration, hardware communication, and SDK development. Microsoft Student Partner alumnus and early Xamarin adopter with multiple hackathon victories. Passionate about R&D, emerging technologies, and leading high-performance development teams in complex technical environments.

Professional Experience

Laerdal Medical logo

Software Architect & Developer Experience Lead

Laerdal Medical

Stavanger, Norway 🇳🇴

Apr 2019 - Present

Current Full-time

Responsible for designing cross-platform .NET libraries (MAUI, C#, Bluetooth) used across medical device applications, while driving developer productivity through CI/CD automation, clean code practices, and internal tooling. Act as a technical leader bridging architecture, DevOps, and developer experience, ensuring stability, maintainability, and security in both product code and developer workflows.

Key Achievements:

  • Progressed from contractor to Software Architect & Developer Experience Lead over 6+ years
  • Led a transformation of mobile development principles company-wide
  • Developed and published open-source libraries (Nordic DFU, FFmpeg, USB, BLE...)
  • Created modular reusable libraries reducing code duplication to a minimum
  • Accelerated app development from 2 years to 4 months per app
  • Built internal UI and Charts toolkit for cross-platform consistency
  • Established performance, documentation, and accessibility standards
C#/.NET Xamarin MAUI Android iOS NuGet FFmpeg Bluetooth USB API Nordic DFU Analytics Accessibility Open Source CI/CD
Eyes App logo

Chief Technology Officer

Eyes App

Toronto, Canada 🇨🇦

Jan 2017 - Jun 2018

Full-time

Led the end-to-end technical vision of a social networking startup, architecting a full-stack solution with Azure backend services and Xamarin mobile apps. Managed a team of engineers through agile practices, delivering from prototype to production with integrated CI/CD pipelines and scalable cloud infrastructure. Balanced hands-on development with leadership, regulatory compliance, and investor-facing technical validation to ensure both product delivery and business readiness.

Key Achievements:

  • Architected full-stack .NET solution with Azure Backend and Xamarin mobile apps from prototype to production
  • Assembled & led development team of 5 engineers with continuous mentoring
  • Implemented social login integration for platforms (Facebook, Twitter, LinkedIn, Snapchat, ...)
  • Established CI/CD pipelines and comprehensive monitoring (AppCenter, Application Insights, Azure Analytics)
  • Designed innovative UX solutions including Gravity Spheres navigation and iOS animations
  • Built complete startup infrastructure: IT systems, legal compliance (GDPR), fundraising support
C#/.NET Xamarin Azure iOS Android Azure DevOps AppCenter Office 365 Application Insights CI/CD
Cellenza logo

Mobile Developer/Xamarin Consulting & Expertise

Cellenza

Paris, France

Jun 2016 - Jan 2017

Full-time

Provided cross-platform mobile development expertise for enterprise clients, delivering Xamarin-based applications with native performance on iOS and Android. Led iOS development for Oxford's Scribzee document scanning app and contributed to Rothschild & Co's mobile banking frontend, combining Xamarin.Forms with Azure backend integration. Worked within agile teams, driving UX/UI improvements and ensuring production-ready solutions that balanced technical quality with client needs.

Key Achievements:

  • Led iOS development for Scribzee document scanning app with cross-platform Xamarin architecture
  • Contributed to Rothschild & Co Mobile Banking frontend development using Xamarin.Forms
  • Participated in Scrum methodology with daily meetings in agile development teams
  • Provided UX/UI design consultation and implemented visual improvements
  • Delivered Azure backend integration for mobile applications
Xamarin Xamarin.Forms iOS Android Azure C# UX/UI Design Scrum/Agile
Shapr logo

Xamarin Developer

Shapr

Paris, France

Mar 2016 - Jul 2016

Full-time

Contributed to the early development of Shapr, a swipe-based professional networking startup in Paris. Focused on modernizing the iOS front page and implementing the signature swipe left–right UI at a time when such elements had no open-source libraries. Integrated Xamarin preview features to improve stability and platform compliance, balancing high code sharing with polished native UX. This first full-time role provided hands-on startup experience and the opportunity to deliver impactful features despite limited prior professional experience.

Key Achievements:

  • Modernized the iOS front page and implemented swipe left–right UI
  • Integrated Xamarin preview features for improved stability and compliance
  • Balanced high code sharing with polished native user experience
  • Gained hands-on startup experience delivering impactful features
C#/.NET Xamarin iOS
EPSI - L'école d'ingénierie informatique logo

.NET Developer

EPSI - L'école d'ingénierie informatique

Greater Lyon Area, France

Apr 2015 - Apr 2016

Part-time

Ran the Innovation Lab at EPSI, serving as the go-to technical resource for students and faculty while showcasing emerging technologies such as drones, 3D printers, Kinect, and LeapMotion. Provided training and mentoring for hackathons, led technical demonstrations at fairs, and developed applications including the Kaly.Space gamified contact bot and the Femeco cross-platform suite. Combined hands-on development with educational support and community outreach in a highly creative environment.

Key Achievements:

  • Led EPSI's Innovation Lab as go-to technical resource for students and faculty
  • Conducted tech demos with cutting-edge hardware (drones, 3D printers, Kinect)
  • Provided hackathon training and mentoring for student competitions
  • Organized emerging tech sessions and prepared demo packs for student fairs
  • Animated regional science fair showcasing technology to children (6-16 years)
  • Developed Kaly.Space gamified bot and Femeco cross-platform suite
  • Delivered IT support and digital tools for Lyon team operations
C#/.NET Xamarin Windows Phone Android iOS PHP 3D Printing Kinect LeapMotion RealSense Speech Recognition Speech Synthesis
Sopra Steria logo

.NET Programmer

Sopra Steria

Greater Lyon Area, France

Sep 2014 - Apr 2015

Part-time

Worked part-time on GRDF's gas infrastructure modernization project, developing deployment, monitoring, and maintenance software for next-generation gas meters (Gazpar). Contributed to tools used by field technicians, real-time monitoring dashboards, and maintenance tracking systems, gaining hands-on experience with industrial IoT, utility infrastructure, and enterprise-grade .NET development (.NET 2.0 ... Windows Mobile 6.5 ...).

Key Achievements:

  • Contributed to next-generation gas meter deployment software
  • Developed monitoring tools for field technicians
  • Implemented maintenance tracking systems
  • Worked with industrial IoT and utility infrastructure
C#/.NET Windows Mobile 6.5 Industrial IoT Monitoring Systems Utility Infrastructure
Teliae logo

PHP Developer

Teliae

Taluyers, France

Sep 2013 - Sep 2014

Part-time

Worked part-time while studying, enhancing transport and logistics software products and building internal management tools for a specialized software company. Improved functionality and UX in products such as Teliway and Station Chargeur, while gaining early experience in DevOps workflows and deployment practices. Teliae offers softwares and solutions for last-mile transport and warehouse management (loading transit stations).

Key Achievements:

  • Enhanced Teliway product functionality and user experience
  • Improved Station Chargeur charging station management software
  • Developed custom internal management software solutions
  • Contributed to transport and logistics software ecosystem
  • Gained experience in DevOps practices and deployment workflows
PHP Web Development MySQL DevOps Software Enhancement Internal Tools Development Transport & Logistics Software

Education

Xamarin University logo

Cross-Platform Mobile Development Certification Program

Xamarin University

Online 🌐

Jan 2015 - Nov 2015

Key Achievements:

  • Microsoft Technology Skills
  • Cross-Platform Architecture Skills

Related Diplomas:

Diplomas & Certifications

EPSI logo

Master's degree

EPSI

IT Engineering, major in Mobile/IoT/Robotics • Lyon, France 🇫🇷

Jun 2016

Advanced degree in IT Engineering with specialization in Mobile development, Internet of Things, and Robotics. Completed with distinction while actively participating in Microsoft programs and winning multiple hackathons.

Xamarin University logo

Xamarin Certification

Xamarin University

Cross-Platform Mobile Development • Online 🌐

Dec 2015

Comprehensive Xamarin certification covering cross-platform mobile development with C# and .NET. Completed intensive coursework and practical projects, becoming one of the early certified Xamarin developers.

🔄 Recertified: Sep 2017
ETS Global logo

TOEIC English Certification

ETS Global

English Language Proficiency • Lyon, France 🇫🇷

Jun 2015

Achieved a score of 980/990 on the TOEIC (Test of English for International Communication); near-native English proficiency for international business and technical communication.

📊 Score: 980/990 🎯 Level: C2 - Proficient User
EPSI logo

Bachelor en Informatique

EPSI

Computer Science • Lyon, France 🇫🇷

Aug 2014

Bachelor's degree in Computer Science from EPSI Lyon, completing the foundational phase of engineering education. This program bridged technical skills with advanced computer science concepts in preparation for specialized master's studies.

Académie de Lyon logo

Brevet de Technicien Supérieur (BTS)

Académie de Lyon

Services Informatiques aux Organisations • Lyon, France 🇫🇷

Jul 2013

State diploma in IT Services for Organizations from the Academy of Lyon. This technical degree provided foundational knowledge in computer science, software development, and organizational IT systems.

Hackathons & Competitions

Hack&Fly
Jul 2016 48 hours

Hack&Fly

Aeroports de Paris & Schiphol Airport

Travel automation app that learns user habits and automates airport and travel experiences. Winner of 1st National Prize.

🥇 1st National Prize
.NET Xamarin REST APIs
ClubMed Hackathon
Jul 2016 48h

ClubMed Hackathon

ClubMed

Holiday resort assistant app that allows guests to request anything anytime - the Uber for holiday resorts. Winner of 1st Development Prize.

🥇 1st Development Prize
.NET Xamarin PHP +1 more
ImagineCup 2014
Jul 2014 6 months

ImagineCup 2014

Microsoft

Video editing application using frame-interpolation algorithms to create smooth slow motion effects from regular video footage.

🥇 1st National Innovation Prize
.NET FFMPEG Frame Interpolation +2 more
DevKings 2013
Oct 2013 3 months

DevKings 2013

Microsoft

Tourism app using augmented reality and OpenData to guide users through Lyon's tourist attractions. Winner of 1st National Prize in all categories.

🥇 1st National Prize (All Categories)
.NET REST APIs UWP +4 more

Technical Skills

Programming Languages

C#
expert
Bash
advanced
Kotlin
intermediate
Java
intermediate
Swift
intermediate
Objective-C
intermediate

Web Technologies

PHP
advanced
JavaScript
advanced
HTML5
advanced
CSS/LESS
advanced
jQuery
advanced
Handlebars
intermediate
Babylon.js
intermediate

Frameworks & Platforms

.NET Core/.NET
expert
Xamarin / .NET MAUI
expert
Astro
intermediate

Content Management

Ghost CMS
advanced
WordPress
intermediate

Platforms

Android (Native & MAUI)
expert
iOS (Native & MAUI)
expert
MacCatalyst
advanced
Windows (UWP & MAUI)
expert
Microsoft Azure
intermediate

DevOps & CI/CD

GitHub Actions
expert
Azure DevOps
advanced

GitHub Ecosystem

GitHub Copilot
advanced
GitHub Wiki
advanced
GitHub Repositories
advanced

Atlassian Tools

Jira
advanced
Confluence
advanced
Bitbucket
expert

Development Tools

Visual Studio
advanced
JetBrains Rider / ReSharper
expert
Visual Studio Code
expert
PHPStorm
advanced
WebStorm
advanced
GitKraken
expert

Specialized Technologies

Bluetooth Stack
expert
USB API
advanced
Nordic DFU
expert
NuGet Packaging
expert

Media & Graphics

FFmpeg
intermediate
Skia
advanced
Adobe Photoshop
expert

Architecture & Leadership

Cross-Platform Development (MVVM-MVU)
expert
SDK Development
expert
Game Development
intermediate
Technology Research
expert
R&D Strategy
expert
Team Leadership
advanced
Agile / Scrum
advanced

Languages

🇫🇷 French
expert
🇬🇧 English
expert
🇳🇴 Norwegian
intermediate
🇩🇪 German
beginner
🇷🇺 Russian
learning
Download PDF Resume