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Full-Stack Product Engineer & Technical Founder

I build production-ready digital products.

I help startups and ambitious businesses turn complex ideas into reliable web applications — from architecture and development to deployment and continuous improvement.

  • Founder of VotArena — a live event platform processing real Mobile Money payments
  • 3+ years of remote work with a South African company on a product in production
  • Head of IT for an 8-site medical laboratory network, sole engineer of its platform

Selected work

Four products that are live today, from a payment-heavy event platform to the software behind a network of medical laboratories — each with the problem, my role and dated, measurable outcomes.

View all work
  • VotArena home screen: crown logo, animated phone mockup and the "Start" call to action

    Entertainment & event platform

    VotArena

    Own product — Fingers Technologies

    Event platform for French-speaking Africa: paid-vote competitions with a live public leaderboard, QR ticketing delivered on WhatsApp and organizer payouts, all paid by Mobile Money. Designed, built and operated by one engineer, live since March 2026 with verifiable early traction.

    Paid votes
    3,472
    one competition, as of 23 Sept 2026
    Organizer payouts paid
    22
    466,352 XAF, as of 23 Sept 2026
    Automated tests
    6,087
    all passing, 25 Sept 2026
  • Kuntriz home page: an eligibility check for Cameroonians leaving abroad, covering 10 countries and 48 pathways

    Immigration guidance · consumer web app

    Kuntriz

    Own product — in partnership with Inter Solutions Service

    A bilingual web app that tells Cameroonians their real odds of moving abroad before they pay an intermediary for the answer: an adaptive questionnaire, a deterministic scoring engine covering 10 countries, and a paid report delivered as a PDF or on WhatsApp.

    Countries modelled
    10
    Immigration pathways
    48
    Unit tests
    129
  • Laboratoires SION public website home pageConfidential engagement

    Healthcare platform — multi-site laboratory network

    Laboratoire SION · UNILAB

    Laboratoires SION — Cameroon

    A platform for a network of eight medical laboratories that were each running an isolated copy of a legacy application, covering four distinct systems built by one engineer: the public website, a site-synchronisation layer, a commercial and accounting steering tool, and a lab-operations service now piloted at one site.

    Laboratory sites
    8
    Workstations
    42
    Prescriptions per day
    ~90
  • Home page of jungle.immo showing the hero and the furnished-rental search entry points

    PropTech marketplace

    Jungle Immobilier

    Own product

    A furnished-rental discovery platform for Cameroon where the details that matter (access video, neighbourhood hotspots) are unlocked with tokens bought through Mobile Money. Designed, built and deployed by one person: a modular NestJS/GraphQL API, a Next.js front end, MongoDB transactions and a Traefik topology where nothing but the proxy is exposed.

    Bounded contexts
    7
    identity to unlock
    Lines of TypeScript
    ~20,000
    10 repositories
    Pre-launch audit findings
    67
    triaged and fixed, August 2026

What I build

Three ways to work together, with the same scope every time: understand the problem, make the technical decisions, ship to production and stay to improve it.

  1. 01

    MVP & SaaS development

    Build your MVP from idea to production.

    You have a validated idea, or a product that needs to exist, and no technical team yet. I take it from requirements to a deployed, maintainable application that you own — frontend, backend, database, integrations and infrastructure.

  2. 02

    Existing product engineering

    Improve, stabilize and scale an existing product.

    Your product is live but slows you down: recurring bugs, a fragile deployment, a feature nobody dares to touch, or an architecture that no longer fits. I join an existing codebase, understand it before changing it, and fix what hurts most first.

  3. 03

    Technical partnership

    A technical partner before you need a full-time CTO.

    Early-stage companies need technical decisions made well before they can justify a full-time CTO. I take that role on a recurring basis: architecture, priorities, delivery, and the technical side of conversations with partners, providers and future hires.

How I work

A working method rather than a methodology: five steps I follow on my own products and on client work alike.

  1. 01

    Understand

    I start by understanding the business problem, the users and what success actually means.

  2. 02

    Structure

    I turn the requirements into a clear technical approach and architecture.

  3. 03

    Build

    I build iteratively, keeping the product usable and testable throughout the process.

  4. 04

    Ship

    I take care of deployment, infrastructure and production readiness.

  5. 05

    Improve

    I use feedback and real-world data to continuously improve the product.

Technical capabilities

I work across the whole chain — frontend, backend, data, infrastructure — in TypeScript first. Every item below is used in a product that is in production today.

Product engineering

  • SaaS
  • MVPs
  • Business platforms
  • Web applications
  • Mobile integrations
  • API integrations

Frontend

  • React
  • Next.js
  • TypeScript
  • Tailwind CSS

Backend

  • Node.js
  • NestJS
  • REST
  • GraphQL
  • Prisma

Data

  • PostgreSQL
  • MongoDB
  • Redis
  • Relational modelling

Infrastructure

  • Docker
  • Linux
  • Traefik
  • CI/CD
  • Git/GitHub
  • GitLab
  • Vercel

Engineering

  • Architecture
  • Testing
  • Debugging
  • Authentication / authorization
  • Security
  • Performance
  • Maintainability

About

I'm Durin Tasondock, a full-stack product engineer based in Cameroon, working remotely with founders and teams. Since 2022 I have shipped software for employers, clients and my own companies: an event platform with real payments, a long-running event-management SaaS, and the platform behind a network of medical laboratories.

I take products from problem to production and stay after launch. That covers architecture, code, infrastructure and the trade-offs in between — decided together with the people who own the business.

What clients and colleagues say

  • I've never met someone like Durin. At the very beginning, he was not the best technically, but very fast he proved that he could, and ended up carrying more and more weight for the company.

    Touko YvesDirector, Dyvix IT Solutions
  • Collaborating with Durin was an absolute pleasure. He is literally a brother now.

    Ronald KammeniInter IT Solutions Service (formerly Dyvix IT Solutions)
  • Durin is someone we don't want to play with, because he is engaged in every aspect of a project and really values overall success rather than just personal accomplishment. Remarkable coder, but also very business oriented.

    Emmanuel ArrahCo-founder & Manager, Arrah Solutions
  • If every collaborator is as hard-working as Durin, I'm sure there will be no limit to what we can achieve. Let's build a dream team!

    Hervé KenfackFounder, Klapeers

Have a product to build? Let's talk.

Tell me what you are building and where it stands. I reply within two business days, in English or French.