Andrei Năstase

Do you need an app? Or someone to build it with you?

I am a senior full-stack developer, with 17 years in software and 10 products of my own behind me. I tell you honestly what is worth building. And if the idea is good and has customers waiting for it, I join as technical co-founder.

Book the free call I have an idea, I need a co-founder
  • 17 years in software
  • 10 products of my own
  • 38 client projects
  • Reply within one business day

What I have built

My own products, as founder or co-founder. On each one I did the design, the code and the launch.

The numbers behind them

  • TixelloProcessed through the platform, cumulative, as of 5 November 2026.
    5,016
    events
    107,255
    customers
    410,444
    tickets sold
    €5,208,961
    processed
  • AmBiletGrowth in sales and revenue.
    +148%
    5-month average
    over 300%
    in a single month
  • Dreams Atlas
    3.22M
    organic impressions
    332
    customers
  • bilete.onlineTickets to attractions, museums and parks.
    7,954
    attractions in Romania
  • ViaquiTickets to attractions worldwide.
    113,093
    attractions
    51
    countries
  • TICS RadarTracked live.
    4,632
    events
    580,857
    seats monitored
    20
    platforms
    498
    cities

At most 2 new founders at a time

You have the idea and people waiting for it? What you are missing is someone to build the product.

I join you as technical co-founder and we start a new company together. I do not build and leave: I stay for the long term and I am responsible for the product, so you can focus on customers and sales.

Tell me your idea How it works
  • Partnership only€0

    I cover the full development cost. We split the company equally, 50/50.

  • Reduced price and partnershipfrom €3,000

    You pay part of the cost, I cover the rest. I get a smaller share of the company.

Who I am

I am Andrei Năstase, from Ploiești, Romania. I have been writing software for 17 years, as a senior full-stack developer: frontend, backend and mobile apps. Besides code, I do product design, animation and marketing strategy, because my products needed all of them.

I am also the father of two wonderful boys. That changes how I look at a product: I ask what a child sees on the screen, how much time the app asks of them, and whether a tired parent can use it in the evening, with one hand. Two of my products, dubidu and Story of WHO, are made for children and their parents.

What I do

I build products from scratch, from idea to launch. I build them for companies, for myself and, more and more often, together with founders from other fields.

What I am good at

Saying what is not worth building. Taking a product all the way to paying customers. Leading teams, as CTO or as festival director.

What I know

Backend
PHP, Laravel, Filament, Livewire, CodeIgniter, Python
Frontend
JavaScript, Vue.js, CSS, Tailwind, Bootstrap
Data
SQL, MySQL, PostgreSQL, Supabase
CMS and stores
WordPress, Magento
Hosting
AWS, Cloudflare, Vercel, Railway
Product
Stripe payments, iOS and Android apps, Chrome extensions

I work with AI

And I am not shy about saying it. Today it would be foolish not to use the best tools. I do not just ask things in a chat: I integrate them through APIs into the products I build, connect them to databases and other tools through MCP servers, and work every day with agents that write and test code alongside me. The decisions and the responsibility for the code stay with me.

  • Claude
  • ChatGPT
  • Gemini
  • Grok
  • API integrations
  • MCP servers
  • Coding agents
  • Automations
  • Voice: transcription, translation, synthesis
  • 2020–2022NaradaCTO
  • 2024–2025LAROCK FestivalProject Manager and festival director, editions 2 and 3
  • 2011–2013FREEFEST FestivalFestival director, editions 1, 2 and 3

In progress and for sale

The Story of WHO website on a phone Story of WHO In progress

Bedtime stories for children, personalized with AI.

 Route-a-Roo Route-a-Roo In progress

Tour planning for artists: routes, venues, logistics.

 Actoria Actoria In progress

Connects actors with casting directors and production companies.

 CineSunt CineSunt In progress

A self-discovery platform.

 The Bine.ro website on a phone Bine.ro For sale

You shop online, and part of the money goes automatically to a cause.

Client work

31 websites, across 8 industries. Scroll.

Skip

Also by me: Libazon, SAGA Festival, Naradix, Wooba, Glora.us, HartaEdu, LT Wealth.

How I can help

Not every problem needs an app. Sometimes a good form, an integration or a tool that already exists solves the same problem faster and cheaper. If that is the case, I tell you on the first call.

Web apps

When you really need an app, I build it from the first sketch to launch: client portals, admin panels, bookings, payments, integrations. It works on any phone, with nothing to download. The code and the data stay yours.

Mobile apps

iOS and Android, in the App Store and Google Play, on the same backend as the web app. Notifications, in-app payments, offline mode. Animations and micro-interactions are included, not sold as an extra.

Technical co-founder

Do you have an idea and people waiting for it, but no one to build it? I join as a partner: I build at my own cost for a share of the company, or at a reduced price for a smaller share. How it works

Have you already built a prototype with Lovable, Bolt, Cursor or ChatGPT and got stuck? I turn it into an app that holds up with your whole team using it: safe data, accounts, payments, without starting from scratch. The audit is free.

Guide prices

You know the exact, fixed price before any line of code. You pay in stages, and the first step is the analysis: if you do not like what I propose, you stop there.

Web app from €3,000

Works on any phone and computer, with nothing to download.

Ask for a quote
Mobile app from €5,000

iOS and Android, on the same backend as the web app. Publishing in the stores is included.

  • App Store
  • Google Play
Technical co-founder €0

I build at my own cost, for a share of the company. For ideas with people waiting for them.

All the details

Why from €3,000?

Because an app is not a company website. It has accounts, data, rules and payments that must work every day, for the whole team. The price covers the whole road, not just the code.

  1. Analysis
  2. Design
  3. Development
  4. Testing
  5. Launch
  6. Instructions

What makes the price go up?

  • How many roles the app has
  • How many integrations it needs
  • Whether it takes payments
  • How complicated the rules are
  • Whether it also has a mobile app

What is a web app, in practice?

Quotes

Your team picks the products and the labour, the price is calculated automatically, and the quote goes to the client with one button.

Small around €3,000
  • No commission per booking or per user.
  • The app runs on your company’s accounts, usually around €40 a month, paid directly to the providers, with no markup.
  • After launch, changes cost from €150 or go into a monthly subscription you can stop at any time.
  • Audit for an app built with AI: free, no obligation.

How I work

From the first call to the app your team uses, you always know where we are.

  1. Free call

    An honest answer: worth building or not.

    You tell me what you want to solve. I tell you whether I can help and how.

    • You do not need to prepare anything or know technical terms.
    • You tell me how you work today and what gets in your way.
    • If it is not worth building, I tell you directly and we stop there.
    • You pick the time in the calendar yourself.
    Takes
    30 minutes
    Your time
    30 minutes
  2. Analysis

    A fixed price, before any line of code.

    I look at how you work today and we decide what is worth doing.

    • We talk for an hour, then I send you a few questions.
    • We decide what goes into the first version and what waits for later.
    • The first step is the analysis: if you do not like what I propose, you stop there.
    Takes
    2–5 days
    Your time
    an hour of discussion and a few answers
  3. We build

    The app, the code, the accounts and the instructions.

    I deliver in stages and you see every step.

    • You pay in stages.
    • The code, data and accounts are in your company’s name.
    • The app runs on your accounts, usually for €40 a month, paid directly to the providers.
    • No commission per booking or per user.
    Takes
    3–8 weeks
    Your time
    a look at each stage
  4. After launch

    An app that stays yours.

    Changes cost from €150 or go into a monthly subscription you can stop at any time.

    • You write to me only when you want something new.
    • If I am no longer available, you have everything another developer needs to continue.
    Takes
    as long as you need
    Your time
    only when you want something new

Book the free call

Pick a time in the calendar yourself, or leave me your details and I will call you within one business day.

  1. So far, in short
  2. 10products of my own
  3. €5,208,961processed through Tixello
  4. +148%AmBilet sales, 5-month average
  5. 3.22Morganic impressions, Dreams Atlas
  6. 4,632live events, TICS Radar
  7. 17 yearsin software
  8. 38client projects
  9. Nextyour project

I work from Ploiești, Romania, in the EU, under GDPR. The code, data and accounts are in your company’s name, and if I am no longer available, you have everything another developer needs to continue. I invoice through TIXELLO SRL.

Or I call you

No technical terms needed. Tell me how you work today and what gets in your way.

What are you interested in

I use your details only to contact you about this request.