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D

Work

Products shipped, used and improved over time.

A selection of projects that show four dimensions of my work: user impact, mobile depth, technical leadership and product autonomy.

For every project I distinguish the collective outcome from my personal contribution. The case studies detail the context, my role, technical decisions, constraints and available evidence.

  • EdTech · Flutter · Firebase · Product

    Making academic resources accessible to 25,000 students.

    Co-founder · Product & technical lead · 2021 — present

    Co-founder and product & technical lead of an academic support app for Cameroonian students: a bank of past exams, an AI tutor, quizzes, a peer network and a payment flow tailored to the local market.

    25,000+

    registered users

    ≈ 1,000

    daily active users during exam periods

    Flutter GetX Firebase Python

    Read the case study

  • Flutter · WebRTC · IoT · Technical leadership

    Aligning hardware, firmware, cloud and mobile around a single system.

    Technical project lead · Flutter mobile developer · 2023 · At Coding Industry

    Technical lead and mobile developer on an IP-camera system: Flutter app, peer-to-peer WebRTC, MQTT, firmware and real-time cloud. An 8-person team aligned around shared interface contracts.

    < 300 ms

    measured WebRTC latency

    8 people

    team coordinated

    Flutter WebRTC MQTT HLS

    Read the case study

  • Flutter · Multimodal AI · EdTech · Solo product

    Turning a photo or a recording into structured teaching feedback.

    Product founder · Mobile and web development · 2025 — present

    A German exam preparation app built end to end: photograph a handwritten essay, record a spoken answer, get structured feedback against the official rubrics, plus timed drills and spaced repetition.

    3,000+

    users

    1 h 03

    average engagement

    Flutter GetX Firebase Gemini multimodal

    Read the case study

  • Flutter · Firebase · B2B SaaS · Hardware

    Replacing the paper HACCP binder with a tool that keeps up with service.

    Lead mobile developer · Coding Industry · 2024 — present

    Development and maintenance of a Flutter HACCP compliance app: offline operation, thermal label printing, IoT temperature sensors, subscriptions and a trilingual UI with full Arabic RTL. Sole developer from v1.0 onward.

    ≈ 20 releases

    in production over nearly 2 years

    3 languages

    French · English · Arabic RTL

    Flutter Firestore Cloud Functions Firebase Auth

    Read the case study

  • Next.js · Django · AI · Full remote · CTO

    Rebuilding a legacy business platform without stopping the engine.

    Freelance CTO · Full remote · 2023 — present

    Leading the full rebuild of SpotInfo's construction-market intelligence platform: replacing a 2009 ASP system with a Next.js/Express stack 10× faster, migrating 200,000 records, then rolling out AI to cover 80 % of production tasks — with a 4-developer team I recruited and supervised.

    10×

    faster platform

    200,000+

    records migrated

    Next.js TypeScript Express Django

    Read the case study

  • Flutter · Riverpod · Next.js · FreeMoPay · Solo product

    Never lose a sale again.

    Product founder · Solo development · 2025 — present

    A personal product built solo in 2 months: a sales assistant for Cameroonian shopkeepers — shareable online catalogue, compliant PDF invoices, WhatsApp follow-ups pre-written at the right moment. 20 paying shops via Mobile Money, ~13 % download-to-paid conversion.

    20

    paying shops subscribed

    ≈ 13 %

    download-to-paid conversion

    Flutter Riverpod Next.js Firebase

    Read the case study

  • Flutter · Firebase · Geolocation · Social auth

    Gabon's number-one tourism platform, five years later.

    Mobile developer · Two-person team · 2021 — present

    Flutter development of the tourism venue directory for Gabon — eat, sleep, have fun: 1,300+ geolocated venues, 10,000+ downloads, still in production five years after initial delivery.

    10,000+

    downloads

    1,300+

    geolocated venues

    Flutter Firebase Google Maps Google Sign-In

    Read the case study

  • Flutter · Google Apps Script · Construction · BMAD

    Two weeks to ship a construction-parts quote app, published on iOS and Android.

    Project lead and developer · Coding Industry · 2024 · At Coding Industry

    Complete digitisation of the quote request process for a French construction-parts distributor — designed, built and published on iOS and Android in two weeks using the BMAD method. 200+ orders placed, exchange time between site and company divided by 3.

    2 weeks

    from spec to publication

    200+

    orders placed via the app

    Flutter Hive Google Apps Script Google Sheets

    Read the case study

Does one of these projects resemble what your team is building?

Let's talk about the role, your mobile constraints and how I can contribute.