$ whoami

Postari Technologies

  • Based in Finland
  • Currently fully booked

Aleksi Postari

Full-stack engineer, UI designer & AI educator

I design and build web applications, platforms and integrations – from the first sketch to the production server. Developing software for over 20 years, 15+ of them professionally, including co-founding and creating MinecraftEdu, the educational version of Minecraft that was acquired by Microsoft.

Aleksi Postari
  • 30+ products shipped

    web, desktop, mobile and games over 15+ years

  • Former co-founder & CTO

    MinecraftEdu, acquired by Microsoft

  • Senior Lecturer

    AI & Data Engineering, Satakunta University of Applied Sciences

~/about

About me

# Background

I wear many hats: developer, UI designer and teacher, and a gamer at heart. I've spent my career building products where good design and solid engineering meet, from educational games used in classrooms worldwide to healthcare and recruitment platforms.

# Today

I run Postari Technologies and work as a Senior Lecturer and curriculum coordinator in the Artificial Intelligence and Data Engineering programmes at Satakunta University of Applied Sciences, teaching LLMs, databases, software architecture and server-side development.

# How I work

Much of my own development is AI-assisted: I work daily with AI agents and tools like Claude and ChatGPT to design, build and ship software faster.

~/services

What I do

I am fully booked at the moment, but this is the kind of work I do.

Web & App Development

Full-stack web applications, platforms and internal tools, built with Vue, React, Python, Node.js or PHP, including the servers they run on.

UI & UX Design

Interfaces that are clear to use and realistic to build. Wireframes, prototypes and finished designs, implemented by the same person who designed them.

AI Consulting & Training

Practical help with bringing AI and LLMs into your product or organization, including adopting AI-assisted development and AI agents in your team's workflow, plus training for teams, backed by years of teaching AI at university level.

Integrations & Automation

Connecting the tools you already use through APIs, custom plugins and automated workflows for services like Slack, Discord, Zendesk and WordPress.

~/work

Selected work

A selection of the products and platforms I have designed and built. Click a project for the full story.

TeacherGaming LLC · 2010 – 2016

MinecraftEdu

The educational version of Minecraft, used in classrooms around the world. I co-founded the company and built the game features, launcher, server tools and web services as CTO. The product was acquired by Microsoft.

Java
Maven
PHP
MySQL
Drupal
MediaWiki
jQuery

5 More Minutes Oy · 2016 – 2019

TeacherGaming Desk

A game-based learning ecosystem with 50 integrated entertainment games, 200 interactive lesson plans, analytics and apps for teachers and students on every platform. I co-founded the company and led the design and development.

Meteor
Node.js
Blaze
MongoDB
Cordova

Satakunta University of Applied Sciences · 2022 – present

Containers on the Fly

An open-source web platform for reserving Docker containers with dedicated CPU, GPU and RAM. Built so AI students can run their computing on dedicated servers, and featured in an IEEE Access publication.

Python
FastAPI
SQLAlchemy
MariaDB
Vue
Vuetify
Docker
Caddy

Etäterveysasema Kätevä Oy · 2020 – 2021

Kätevä Remote Health Center

A remote health center platform built from scratch during the COVID-19 pandemic, with video calls, a queuing system, payments and branded receptions for health centers.

Meteor
Vue
Node.js
MongoDB

Satakunta University of Applied Sciences · 2020 – 2021

YourAgent

A job-seeking platform where companies find the best candidates without applicants having to apply for positions. A matching algorithm suggests the best matches.

Meteor
Node.js
MongoDB

UI & Visual Design

100 interfaces in 100 days for the DailyUI challenge, plus illustrations and graphics published on Dribbble.

Sketch

$ ls other-projects/

~/experience

Experience

  1. Senior Lecturer & Curriculum Coordinator

    Satakunta University of Applied Sciences · 2024 – present

    Teaching and curriculum coordination in the international Artificial Intelligence and Data Engineering programmes, with full-stack development in projects alongside teaching.

    $ ls courses/

    • Large Language Models
    • Relational Databases
    • NoSQL Databases
    • Database Programming
    • Server-Side Programming
    • Web Programming
    • Data Structures & Algorithms
    • Software Production
    • Developer Tools & Version Control
  2. Founder

    Postari Technologies · 2020 – present

    Consultancy for companies on technology challenges and strategy, with practical solutions from software development to AI and LLMs.

  3. Senior Advisor & Part-time Teacher

    Satakunta University of Applied Sciences · 2019 – 2024

    Mentoring and strategic consultancy for technology-oriented startups and projects, and designing and developing apps and software.

  4. Co-founder & CTO

    5 More Minutes Ltd · 2017 – 2019

    Led the tech team and product development of TeacherGaming Desk, a game-based learning ecosystem with 50+ integrated games, learning analytics and apps for web, desktop and mobile. Full-stack development, Unix and Azure operations, UI and UX design.

  5. Co-founder & CTO

    TeacherGaming LLC · 2010 – 2016

    Led the development of MinecraftEdu, the educational version of Minecraft used in classrooms worldwide, and the whole tech stack around it: websites, web APIs and servers. The product was acquired by Microsoft.

$ cat education.txt

  • Professional Teacher Education

    JAMK University of Applied Sciences · 2024

  • Master's degree, Computer Science

    Tampere University · 2023

  • Bachelor of Business Administration, Business Information Technology

    Karelia University of Applied Sciences · 2013

  • Undergraduate Degree, Computer Science

    Riveria · 2009

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Skills

Core
JavaScript / TypeScript
Vue
Python
PHP
Full-stack development
Web development
Frontend development
Server-side development
Software architecture
UI / UX design
AI & Data
Large Language Models (LLMs)
AI-assisted development
AI agents
Claude / Claude Code
ChatGPT
Relational databases & SQL
Database programming
NoSQL databases
Data structures & algorithms
Infrastructure & Tools
Unix / Linux
Computer networking
Docker
Azure
Git & version control
Software production
Teaching
Pedagogy
Curriculum design
AI education
Experienced
Java
React
Node.js
Meteor
FastAPI
MySQL / MariaDB / SQLite
MongoDB
Also worked with
C# / Unity
Django
Redis
Neo4j
WordPress
Drupal
Concrete5
Joomla

I have also built integrations and custom plugins for many services, including Slack, Discord, Zendesk, Intercom, WordPress, Drupal and more.

~/contact

Get in touch

I'm currently fully booked and not taking on new projects, but feel free to reach out to say hello or to talk about future work.

$ mail riialin (at) gmail.com