Mobile Developer · Bucharest

IonescuAndrei

Mobile Developer at Deepstash @ Smartheads/CS student @ Politehnica/Teaching Assistant

I'm a mobile developer at Deepstash, building React Native apps that ship to real users. On campus I teach OOP and Data Structures & Algorithms at the Faculty of Automatic Control and Computer Science — and most weekends I'm turning hackathon ideas into working products.

See what I've builtGet in touch
GitHubLinkedInEmail
11 hackathon wins
GPA 9.21 / 10
09:41
Portfolio
Ionescu Andrei
Ionescu Andrei
Where I am
Mobile Developer
Deepstash @ Smartheads
2026 — Now
Teaching Assistant
ACS · Politehnica
2025 — Now
CS & Engineering
Politehnica Bucharest
Year 2
Top award
🥉
3rd in Europe
JetBrains Tech Quiz · 2025
Projects
PlugHuntReact Native
VoyagiReact
JFSExpo
BidUpsoon
Tech
React NativeTypeScriptNode.jsDockerPython
Ionescu Andrei
Ionescu Andrei
Mobile Developer · Bucharest
9.21GPA
11Awards
9Projects
StudiesEng. in Foreign Languages
FocusReact Native · Full-stack
Open toInternships · Freelance
GitHubLinkedInEmail
Recognition

Built under pressure, judged on results

Hackathons and competitions are where I do some of my best work — short deadlines, real teams, and something working by the end of it. A few that stuck.

0
Awards & podiums
0rd
in Europe · JetBrains Tech Quiz 2025
0.00
University GPA
0
Coming app in production
2nd place

Junior Achievement Romania — Innovation Camp · HP Romania

HP Romania · University POLITEHNICA of Bucharest
🥈
May 2026
2nd place

Scientific Communication Session — Software Engineering & AI

Politehnica Bucharest · University POLITEHNICA of Bucharest
🥈
May 2026
2nd place

Junior Achievement Romania — Innovation Camp

Junior Achievement Romania · University POLITEHNICA of Bucharest
🥈
Dec 2025
Experience

Where I'm working

From a Mobile Developer team shipping to real users, to teaching the fundamentals to first-years.

Mobile Developer

Deepstash @Smartheads

Building the Deepstash and Protocol mobile apps in React Native — shipping features end-to-end and working within a production codebase used by a large audience.

Current
Hybrid · Full-time

Teaching Assistant

Faculty of Automatic Control & Computer Science

Running lab sessions for Object-Oriented Programming and Data Structures & Algorithms — helping first-years get confident in C and Java, and in the problem-solving behind them.

Current
On-site · Part-time

Full-Stack Developer

Lemings

Building scalable web applications and APIs with modern JavaScript — the work that gave me a solid full-stack foundation before going deep on mobile.

2020 — 2025
Hybrid · Part-time
Selected work

Things I've shipped

Most of these started as a problem I actually had. Each taught me something — about mobile, about scale, or about getting a thing in front of users.

01 / Mobile

PlugHunt

● React Native · Expo

A mobile app for finding and sharing private EV charging stations. People locate chargers in real time and earn credits by listing their own — a small two-sided marketplace built around a live map.

Role
Duo built · mobile & backend
Focus
Real-time map, credits system, geolocation
React NativeGoogle Maps APIExpoFirebaseClerk
Presentation
PlugHunt
02 / Mobile

JFS — Jobs For Students

● HTML/CSS/JS · PHP

A platform connecting students looking for easy part-time work with employers like walking the dogs, or wash a car. Job listings, applications and real-time notifications — built mobile-first for the people who actually use it on the move.

Role
Frontend
Focus
Listings, applications, push notifications
HTML/CSS/JSPHPMySQL
GitHubVideo demo
JFS — Jobs For Students
03 / Full-Stack

Voyagi

● Expo · React-Native · Gemini API

A travel-planning app for organising trips, discovering destinations and managing itineraries using AI, finding the best trip for your needs. Built in a weekend for the Scientific Comunication Session.

Role
Full-stack
Focus
Itinerary builder, destination discovery
React-NativeExpoFirebaseGemini APIAMADEUS API
GitHubPresentation
Voyagi
04 / Web

Lemings Store

● Web · E-commerce

An online store for Lemings, a Romanian advertising and print-production company — product catalogue, browsing and ordering for custom promotional materials.

Role
Full-stack web development
Focus
Catalogue, storefront, ordering
WebE-commerceNext.jsNode.jsExpress.jsMongoDBStripe
lemings.ro
Lemings Store
05 / Web

Stație Sturioni DDBRA

● Web · Institutional

A website for the Danube Delta sturgeon station, run under the Danube Delta Biosphere Reserve Authority (DDBRA) — presenting the station and its conservation work to the public.

Role
Web development
Focus
Public information, content site
Vue.jsGithub CDN
statiesturioni.ddbra.ro
Stație Sturioni DDBRA
06 / Web

Althera Maramureș

● Web · European Union funded website

A presentation website for Althera in Maramureș — a clean, content-focused site showcasing the brand and what it offers.

Role
Frontend development
Focus
Brand presentation, responsive site
WordpressElementorPHP
althera.maramures.ro
Althera Maramureș
07 / Mobile

Memotap

● Expo · React-Native · Gemini API

A mobile app designed for those moments when your mind is overloaded and you’re afraid you’ll forget something important. Instead of manually typing reminders, you simply press a button and say something like: “Remind me to clean the car in 10 days at 8.” MemoTap understands your request and automatically creates the reminder for you.

Role
Team built · design & engineering
Focus
Spaced repetition, fast review
React NativeExpoNode.jsGemini APIExpress.jsMongoDB
Presentation
Memotap
08 / Mobile

StudyBuddy

● React Native · Productivity

A study-companion app that helps students in their first years to make groups of studies, sessions and also have their materials organized in Politehnica Campus

Role
Solo build · design & engineering
Focus
Session planning, progress tracking
React NativeGoogle Maps APIExpoFirebaseClerk
GitHub
StudyBuddy
09 / Game

Word Clash

● Mobile · Word game

A fast, competitive word game — race the clock and outscore your opponents round after round.

Role
Solo build · design & engineering
Focus
Real-time scoring, gameplay loop
React NativeGemini APIExpoFirebaseNode.jsExpress.jsMongoDB
GitHub
Word Clash
See more on GitHub
Academic background

Studying it, then teaching it

Second year of Computer Engineering — and already on the other side of the lab bench helping the year below.

Computer Science & Engineering — IoT

University POLITEHNICA of Bucharest
Faculty of Engineering in Foreign Languages · Bucharest, Romania. Currently in my second year, with a focus on systems, embedded/IoT and software engineering — while teaching OOP and DSA labs at the Faculty of Automatic Control & Computer Science.
Object-Oriented ProgrammingData Structures & AlgorithmsIoT & EmbeddedOperating SystemsDatabasesMicroprocessors Architecture
9.21
GPA · out of 10
Stack

What I build with

Mobile-first, but comfortable across the stack — from the screen in someone's hand to the API behind it.

Mobile /01
  • React Native →
  • Expo →
  • UI / UX →
Frontend /02
  • React →
  • TypeScript →
  • JavaScript →
Backend /03
  • Node.js →
  • Express.js →
  • Django · Python →
Tools & Data /04
  • Git →
  • Linux →
  • MySQL →
DevOps /05
  • Docker →
  • CI/CD Pipelines →
  • Sysadmin →
Contact

Let's build something

Open to internships, freelance mobile work, and the occasional hackathon team. If you've got something interesting — or just want to talk shop — say hi.

contact@ionescuandrei.tech Email@ionescuaandrei GitHubin/ionescuaandrei LinkedIn

Usually replies within a day.