You will get a Full-Stack SaaS MVP Built and Deployed in 30 Days
Rising Talent
Rising Talent
Project details
You get a working SaaS product - not a prototype, not a mockup, not a proof of concept. A real application with authentication, a database, core features, and a deployed URL you can share with users on day one.
In the last 90 days I built and shipped Aegis, a clinical AI decision support platform in Next.js, then rebuilt the entire thing in Ruby on Rails over a weekend to benchmark both architectures. Rails came out 60% faster with 85% less JavaScript payload. That is the kind of engineering decision I make on your project - not just building what you ask for, but thinking about whether it is the right way to build it.
I work in milestones. You see progress at the end of every week, not just at delivery. If something needs to change mid-build, we talk about it before it becomes a problem.
Fixed-price preferred. You pay for output, not hours. Full source code handed over on completion - no lock-in, no ongoing fees to me.
In the last 90 days I built and shipped Aegis, a clinical AI decision support platform in Next.js, then rebuilt the entire thing in Ruby on Rails over a weekend to benchmark both architectures. Rails came out 60% faster with 85% less JavaScript payload. That is the kind of engineering decision I make on your project - not just building what you ask for, but thinking about whether it is the right way to build it.
I work in milestones. You see progress at the end of every week, not just at delivery. If something needs to change mid-build, we talk about it before it becomes a problem.
Fixed-price preferred. You pay for output, not hours. Full source code handed over on completion - no lock-in, no ongoing fees to me.
Programming Languages
HTML & CSS, JavaScript, TypeScriptWhat's included
| Service Tiers |
Starter
$1,200
|
Standard
$2,500
|
Advanced
$4,000
|
|---|---|---|---|
| Delivery Time | 14 days | 21 days | 30 days |
Number of Revisions | 2 | 3 | 5 |
Number of Pages | 5 | 10 | 20 |
Design Customization | - | ||
Content Upload | - | - | |
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$200 - $1,000
Additional Revision
+$75
Additional Page
+$65
API Integration
(+ 2 Days)
+$150
AI Feature Integration
(+ 2 Days)
+$250
Google Analytics and Search Console Setup
(+ 1 Day)
+$75Frequently asked questions
About Giannis
Full-Stack Developer | React, Next.js, Node.js | FHIR
Athens, Greece - 2:41 pm local time
Full-stack development of PoCs and production-ready applications.
What you get is a developer who has shipped production-grade applications and will treat your $400 job with the same care as a $40,000 one.
Recent work:
Aegis (aegis-ai-cds.vercel.app) - A clinical AI decision support platform I built independently. Multi-model AI pipeline with automatic failover when one model hits its rate ceiling, RAG via Supabase pgvector for semantic search, live API evidence grounding, Zod validation on every boundary, structured audit logging. Built the Next.js version first, then rebuilt the entire backend in Ruby on Rails over a weekend to benchmark both architectures.
FHIR Pulse (fhir-dashboard-five.vercel.app) - Real-time data dashboard pulling live API data through a Node.js Express proxy on AWS with server-side transformation, reducing client payload by 30%.
Summarist (yiannis-summarist.vercel.app) - Full-stack SaaS with Firebase Auth, session management, Stripe-style subscription gating, and tier-based feature access.
What I do well:
React, Next.js, TypeScript, Node.js, Express
REST API integration (Google, Meta, Stripe, Firebase, Supabase, OpenAI, Anthropic Claude, Gemini)
AI integration: chatbots, RAG pipelines, LLM orchestration, prompt engineering
Supabase, Firebase, PostgreSQL
Rapid prototyping and MVP delivery
Production bug fixes and code reviews
Background: Ten years as an ICU and ER nurse before engineering, which means I understand what it costs when software fails under pressure. Dual US and Greek citizen operating through a US LLC, no sponsorship or contractor paperwork needed. Based in Athens, Greece, fully available during US Eastern business hours for async and live collaboration.
Available immediately. I respond to messages within a few hours during weekdays.
Steps for completing your project
After purchasing the project, send requirements so Giannis can start the project.
Delivery time starts when Giannis receives requirements from you.
Giannis works on your project following the steps below.
Revisions may occur after the delivery date.
Scope and architecture confirmation
I document the exact feature set, database schema, and API structure before writing a single line of code. No ambiguity.
Core Build and first Preview
Auth, database, and core feature built. You receive a live staged preview link within the first week.