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Available for new projectsYaoundé · İstanbul · Remote

I build softwarethat keeps workingwhen the network doesn't.

Senior Full-Stack Developer, Software Architect, FinTech Engineer, AI Engineer, Security Consultant

Senior full-stack developer and software architect. Since 2020 I have been shipping products at DylaneCodeur that are live in Africa and on international markets: offline point-of-sale systems, multi-currency marketplaces, and apps on the App Store and Google Play.

years of experience
0+years of experience
products in production
0products in production
countries served
0countries served
platforms mastered
0platforms mastered
Portrait of Dylane Sopgui Nidjo, senior full-stack developer and founder of DylaneCodeur

DylaneCodeur

Dylane Sopgui Nidjo

  • Flutter
  • Next.js
  • TypeScript
  • Node.js
  • Python
  • PostgreSQL
  • Firebase
  • Electron
  • SQLite
  • React Native
  • FastAPI
  • NestJS
  • OpenAI
  • PyTorch
  • YOLOv11
  • Docker
  • Railway
  • Vercel
  • C#
  • ASP.NET Core
  • Cypress
  • Selenium
  • Three.js
  • Tailwind CSS
Dylane Sopgui Nidjo in studio, founder of DylaneCodeur

Founder of DylaneCodeur

DylaneCodeursince 2020

15+
Yaoundé, Cameroun
TR
İstanbul, Turquie
About

A product engineer, not just a coder

I started writing code to fix problems I could see around me: a shopkeeper losing a day of sales to every power cut, a landlord tracking rent in a paper notebook, a farmer selling blind because nobody tells him the market price.

After more than fifteen years in the craft, those problems have turned into roughly thirty products in production. WiseBled came from one hard constraint: a cash register has to work without internet. So I built an Electron app on a local SQLite database that syncs the moment connectivity returns — then extended the same core to web, mobile and cloud.

That field constraint shapes how I work. Architecture comes first: what is the degradation path, what is the sync strategy, what will infrastructure cost in two years. Code comes second. It is the reason my apps run as well on an entry-level Android phone in Bafoussam as on an iPad in İstanbul. Several are already live beyond Africa: Türkiye, Europe, France and China.

Today my work sits on three pillars: architecting multi-platform systems, integrating AI that is useful rather than decorative, and securing financial flows — because an application that moves money has no room for guesswork.

Architecture first

Offline modes, differential sync, predictable infrastructure cost. I design for scale before writing the first line of code.

Africa and international

Products live in Africa, Türkiye, Europe, France and China. Mobile Money, unstable networks, low-end devices, trilingual interfaces: the constraints stay those of the people using them.

Applied AI

Support chatbots, rental yield analysis, computer vision on microscopy images. Artificial intelligence with a measurable outcome.

Security done properly

Audits, penetration testing, GDPR compliance, KYC/AML flows. Non-negotiable the moment payments and personal data are involved.

Technical expertise

Eight domains, one standard

I don't collect technologies — I keep the ones that survive production. Here is what I actually use day to day, with an honest read on proficiency.

Interactive skills constellation
  • Flutter / Dart
  • Firebase
  • React Native
  • Publication App Store
  • Publication Play Store
  • RevenueCat / In-App Purchase
  • React / Next.js
  • TypeScript
  • Node.js
  • PHP / MySQL
  • API REST & GraphQL
  • SEO technique
  • Electron
  • SQLite hors-ligne
  • Impression thermique ESC/POS
  • Packaging Windows / macOS / Linux
  • Node.js / NestJS
  • Python / FastAPI
  • PostgreSQL
  • Railway / Vercel
  • Docker
  • Firebase / Cloud Functions
  • C#
  • ASP.NET Core
  • C / C++
  • Intégration OpenAI API
  • Chatbots & agents
  • TensorFlow / PyTorch
  • Fine-tuning de modèles
  • Vision par ordinateur (YOLO)
  • Systèmes de recommandation
  • Cypress
  • Selenium
  • PyTest
  • Jira / Agile
  • Audit de sécurité
  • Tests d’intrusion
  • Conformité RGPD
  • Chiffrement & gestion des secrets

Mobile

Native and hybrid apps shipped to both stores, with subscriptions and in-app purchases.

  • Flutter / Dart96
  • Firebase94
  • React Native82
  • Publication App Store92
  • Publication Play Store94
  • RevenueCat / In-App Purchase85

Web

From search-optimised marketing sites to real-time business applications.

  • React / Next.js93
  • TypeScript91
  • Node.js92
  • PHP / MySQL90
  • API REST & GraphQL89
  • SEO technique93

Desktop & offline

Installable software that runs without a connection, driving thermal printers and register hardware.

  • Electron94
  • SQLite hors-ligne93
  • Impression thermique ESC/POS90
  • Packaging Windows / macOS / Linux88

Backend & Cloud

APIs, databases, continuous delivery and monitoring on infrastructure I keep under control.

  • Node.js / NestJS91
  • Python / FastAPI88
  • PostgreSQL89
  • Railway / Vercel92
  • Docker80
  • Firebase / Cloud Functions93

.NET & low level

Enterprise integrations and close-to-the-metal work when performance demands it.

  • C#82
  • ASP.NET Core78
  • C / C++76

Artificial intelligence

Conversational agents, computer vision, recommendation and process automation.

  • Intégration OpenAI API93
  • Chatbots & agents91
  • TensorFlow / PyTorch80
  • Fine-tuning de modèles78
  • Vision par ordinateur (YOLO)82
  • Systèmes de recommandation84

Testing & Quality

End-to-end test automation, regression safety and agile delivery tracking.

  • Cypress85
  • Selenium82
  • PyTest84
  • Jira / Agile88

Cybersecurity

Code audits, penetration testing, regulatory compliance and data protection.

  • Audit de sécurité87
  • Tests d’intrusion82
  • Conformité RGPD86
  • Chiffrement & gestion des secrets88
Services

What I can take off your plate

From the first audit to store approval, including training your team. Every service is backed by products already running in production — not by a promise.

Selected work

33 products, every one shipped

Most of these started around 2020 and have been maintained and extended ever since. Each entry lists the real stack, the platforms delivered and the markets served, in Africa and internationally.

See all 33 projects

12 projects

Testimonials

What the people running these products say

Feedback from retailers, agencies and manufacturers who run their daily operations on these tools.

Published anonymously at the clients’ request: role and sector only.

Every power cut used to cost us a full day of sales. Since WiseBled the register keeps running and everything reconciles once the network is back. We also stopped discovering stockouts on the shelf.
Owner of three retail storesFood retail — Douala, Cameroon

About WiseBled

Identity verification changed our business. Our clients know there's a real person behind every listing. The tenant portal alone saves us two working days a month just on rent receipts.
Real estate agency directorReal estate agency — Yaoundé, Cameroon

About Proprio237

Dylane understood something other vendors missed: our users switch from Turkish to French mid-sentence. The app handles it naturally, and our sales followed.
ImporterImport-export — İstanbul, Türkiye

About Afriturk

Our producers were selling with no idea of market prices. The price data in the app changed how they negotiate. And the website finally ranks, which brings us buyers directly.
Cooperative chairmanFarming cooperative — Bafoussam, Cameroon

About AgriForeX

We had four tools that didn't talk to each other. Dylane brought everything onto one database, with an app for production teams and a web interface for management. Per-machine tracking is what we'd been missing most.
Operations directorManufacturing — Abidjan, Côte d’Ivoire

About LIA BLOCK ERP

The project started as a simple listings app and became an ecosystem with couriers and Mobile Money payments. Dylane stayed through every stage and never left a production issue unanswered.
Marketplace founderOnline retail — Libreville, Gabon

About Tendance Shop

Contact

Describe your project — I reply within 24 hours

You don't need a finished specification to start. Tell me what you're trying to solve and I'll tell you how I'd approach it, with a budget and timeline estimate.

Direct contact

WhatsAppOpen the chatEmailcontact@dylanecodeur.com
LocationYaoundé, Cameroun · İstanbul
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