Portfolio

Full Stack Developer

Hello, I'm Nguimnang Wilfried, a passionate Full Stack Developer who specialises in mobile development with Flutter, with 6+ years of experience. I also have experience and knowledge in backend development and web frontend development. I'm currently expanding my skills in LLMs, Cloud Infrastructure, and RAG systems with Azure. I can work as a consultant, employee, or on a contract basis. Working on innovative projects, learning new skills and programming languages is what I like the most. I'm always looking forward to learning, improving my skills, and working on new challenges.

Contact me Download CV

Calgary, Canada chieudjieunguimnang@gmail.com

Experience

MODAFA Sarl

Full Stack Developer

Aug 2024 – Jun 2026

• Developed a real-time tracking system using Flutter, Spring Boot, Kafka event processing and MongoDB. Increased user satisfaction by 20%. • Wrote ETL scripts in Python and created Power BI dashboards using client raw data. Reduced expenses by 9%. • Developed REST APIs and business modules using Node.js, Spring Boot and Symfony for scalable web and mobile applications. • Optimized database entities, ORM queries and pagination strategies in Symfony applications. Improved API response time by 36%. • Built offline-first mobile solutions in Flutter and SQLite with complex synchronization workflows. Increased field operation productivity by 18%. • Developed an offline-first verification system with public key validation and SSL certificate pinning. Reduced verification time by 55%. • Created React.js interfaces integrated with API-driven workflows. Improved application responsiveness by 8%.

MODAFA Sarl

Mobile and Web Developer

Aug 2021 – Aug 2026

• Integrated Firebase Analytics to track user behavior and optimized UI flows. Increased user engagement by 17% and reached 1,000+ downloads. • Automated unit and integration tests using Flutter testing tools and Cucumber. Improved application reliability by 6%. • Integrated third-party services including payment gateways, geolocation APIs and mapping solutions into web and mobile applications. • Configured and deployed 6+ production applications on Google Play Store and App Store. • Built mobile interfaces and prototypes using Flutter for early-stage client applications.

MODAFA Sarl

Mobile Developer Intern

Jan 2020 – Aug 2021

• Developed and deployed the first version of an application in Flutter. Increased search speed by 25%. • Implemented authentication modules using Spring Boot. Improved reusability across projects. • Produced use cases, class diagrams, technical documentation and deployment documentation for software projects.

Education

Certifications

Southern Alberta Institute of Technology

2026 – 2026

• IT Business Analysis • Project Management Essentials • Agile Project Management • Data Concepts • Digital Solutioning • Introduction to Python Programming • Programming with Python • Python and Data Analytics

Master’s Degree in Information Systems & Software Engineering

University of Yaounde I

2022 – 2024

Bachelor's Degree in Computer Science

University of Yaounde I

2018 – 2021

Skills

Frameworks & Libraries

Flutter

React

Spring Boot

NestJS

TypeORM

Node.js

Express.js

Programming Languages

PHP

TypeScript

Java

Python

Databases

SQLite

MySQL

PostgreSQL

MongoDB

Redis

Data & AI

Power BI

Other

Stripe

Gherkin

Selenium

Cucumber

Management & Methodology

Jira

Cloud & DevOps

CI/CD

Docker

Git

Apache Kafka

Projects

Biotropic

Agricultural Data Collection Application (Client: Biotropic) Mobile application designed to digitize agricultural workflows and field data collection. - Developed modular mobile app for digitizing agricultural workflows - Implemented offline data collection and synchronization - Improved field productivity and operational efficiency

WARAP

Transport Tracking Application (Client: Printel SARL) Mobile application for real-time parcel tracking and transport management. - Implemented live tracking using Kafka and OpenStreetMap - Improved user satisfaction by ~30% through real-time delivery visibility

Certifications & Skills

TCF ATTESTATTION

FRANCE EDUCATION INTERNATIONAL

Issued Sep 2025Expires Sep 2027

View certificate

WEB DEVELOPMENT VOCATIONAL QUALIFICATION CERTIFICATE

ISTIA

Issued Aug 2015

View certificate

IT BRIDGING PROGRAM - EMPLOYMENT SKILL TRAINING

CALGARY CATHOLIC IMMIGRATION SOCIETY

Issued Aug 2026

View certificate