About
Hi, I'm Sariakiniaina.
Most people know me as s4r14k. I'm a software engineer, game developer and teacher. My motto is “the virtual world can change the real world”, and it drives everything I make: interactive experiences that feel polished, built on clean systems underneath.
I started in 2015 as a freelancer, designing logos and mockups and building websites and mobile apps. Since then I've worked as a web developer at Hellotana (Hellopro group) and a full-stack engineer at DIRIS. Today I'm an indie game developer, and I hold a bachelor's degree in computer science.
I run the YouTube channel EIS Dev, where I post game development and programming tutorials. I also wrote the Udemy course Make a 2D Platformer in Unreal Engine 5 C++, which teaches player and enemy interactions from scratch.
I sell Unreal Engine plugins on the FAB store, including Smart Tilemap Builder, a Dialogue Widget, a Minimap System and a 2D Platformer template. On the web side, I work mostly with React and Next.js.
- Years of experience
- 11+
- WordPress, PrestaShop & Odoo sites
- 100+
- Plugins on FAB
- 5
- Udemy course
- 1
What I do
Three tracks
Game tools
I build Unreal Engine 5 systems in C++ and expose them to Blueprint, so designers can use them without touching code.
Browse the FAB store →Web products
I build websites, back offices and full-stack platforms for companies, including 100+ sites on WordPress, PrestaShop and Odoo.
See client work →Teaching
On my YouTube channel EIS Dev and in my Udemy course, I teach Unreal Engine and C++ through complete, practical projects.
Open the Udemy course →Experience
Where I've worked
- 2024
Indie Game Developer
Unreal Engine plugins on FAB, a Udemy course and tutorials on the EIS Dev YouTube channel.
- 2020
Full-stack Engineer · DIRIS
- 2019
Web Developer · Hellotana, a Hellopro subsidiary
Websites for the Hellopro group, built for responsive layouts and SEO.
- 2018
Full-stack Developer · Consultant
Built web applications, Android apps and Windows software for clients.
- 2016–2018
Computerized Accountant · F.F.S SARL
Bookkeeping on accounting software.
- Since 2015
Freelance
Logos, mockups, websites and mobile apps for independent clients.
Education
- 2018
Bachelor’s degree in Computer Science (BAC+3)
CNTEMAD · With honours (mention bien)
Events
- 2018
2nd place, Hackathon
Novembre Numérique at the IFM, Antananarivo
- 2018
Participant, Global Startup Weekend AI
Antananarivo edition
Languages
- Malagasy
- Native
- French
- Read and spoken
- English
- Read and spoken
Toolbox
Everything I've used
The full list from ten years of client work, freelancing and side projects.
- Languages
- TypeScriptJavaScriptPythonPHPC++CC#JavaKotlinGoogle Apps Script
- Front end
- ReactNext.jsVue.jsAngularjQueryBootstrapHTML5 / CSS3
- Back end
- Node.jsNestJSSymfony
- Databases
- MySQLPostgreSQLMongoDBOracleSQLite
- DevOps & cloud
- DockerGitLab CIAWSMicrosoft AzureHeroku
- Apps & software
- FlutterIonicAndroid StudioC++ / Qt
- Game & 3D
- Unreal Engine 5BlueprintPaper2DBlender
- CMS
- WordPressWooCommercePrestaShopOdoosysteme.io
- Design
- UI / UXPhotoshopIllustratorInkscape
- Also
- SEOGoogle AnalyticsLinuxTensorFlowWeb3
Since 2019
Selected projects, newest first: from WordPress sites to Unreal Engine plugins.
- 2026Conversational CMSA Next.js site whose owner edits content in plain language from Slack, through an AI agent.Full-stack · AI
- 2026Smart Tilemap BuilderUnreal Engine plugin for painting 2D and 2.5D levels in the viewport, with auto-tiling, slopes and merged collision.Plugin author · C++
- 2026WooCommerce Category Mega MenuWordPress plugin: a horizontal category menu with full-width mega menus, badges and a promo column.Plugin author · PHP
- 2026WooCommerce ↔ PrestaShop SyncWordPress plugin that syncs orders, statuses, tracking and stock between WooCommerce and PrestaShop.Plugin author · PHP
- 2026Generate Products from MediaWordPress plugin that creates WooCommerce products in bulk from Media Library images.Plugin author · PHP
- 2026MP3 APINestJS API that searches the licensed Jamendo music catalog and returns playable MP3s and metadata.Back end · NestJS
- 2025Catering EstimatorWordPress plugin: a multi-step quote form for catering, with live pricing and saved estimates.Plugin author · PHP
- 20252D Platformer GameA 2D platformer game built with Unreal Engine 5 and C++Unreal Engine · C++
- 2025EIS CalculatoriOS calculator app in SwiftUI with functions, history and a unit converter, plus its support website.iOS app · Swift
- 2025Love Story TemplateUnreal Engine C++ plugin for visual-novel style love stories, with dialogue and branching choices.Plugin author · C++
- 2024Make a 2D Platformer in Unreal Engine 5An in-depth Udemy course that teaches how to build a complete 2D platformer game using Unreal Engine 5 and C++.Unreal Engine 5 · C++
- 2024Orthologick Back-officeCustom theme and plugins with WordPress for OrthologickWordPress · PHP
- 2023SimulaboxWealth-management simulation platform: a client app, an admin back office and a real-time Node.js API.Full-stack · React · Node.js
- 2023Randstad Voice PipelineReal-time voice pipeline for Randstad: speech recognition and neural text-to-speech, streamed over WebSockets.Client work with DIRIS · Python
- 2023Stéphane Ayrault Portfolio WebsitePortfolio website built with Wix for Stéphane Ayrault, a professional therapist and coach.Web design · Wix
- 2023GirisSubscription and billing back end with Stripe, plus a desktop app for screen sharing and remote control over WebRTC.Client work with DIRIS · Full-stack
- 2022MISA Unreal PluginUnreal Engine plugin that connects a game to the MISA platform through its REST API.Client work with DIRIS · C++
- 2022Sofraco Company ProjectFull-stack developer for the Sofraco company projectFull-stack · React · MongoDB
- 2022GIZMO Mobile AppCreated an Android mobile application with Android StudioMobile · Java
- 2021EverReady.ai ProjectCompany project for EverReady.ai as a full-stack developerFull-stack · Angular · Kotlin
- 2021Fitting Room 3DVirtual fitting room: a Kinect body scan turned into a 3D model, with a mirror effect.3D scanning · Python
- 2020Hedee.co Website and Back-officeCreated website and back-office for the company HEDEE.COFull-stack · Angular · WordPress
- 2019Hellopro WebsiteWebsite for Hellopro.fr under the project HellotanaFront-end · WordPress