SAAS BUILDER & API SECURITY ENGINEER

Name: GuardAPI
Author: Kévin Falck

Lead Dev at IDDAN (35k users) and Founder of guard-api.com.

35k+

Users Managed

100%

Uptime (1 Year)

SaaS Shipping

TRY GUARDAPI →

VIEW WORK

Work.

Selected Projects

2024 — 2026

IDDAN - SaaS platform for barbershops and beauty salons. Mobile app with scheduling, payments, and business management.

Project

IDDAN — B2B SaaS

Full-stack platform for barbershops. Solo Lead Dev.

Stack

Flutter / Node / AWS

MongoDB, CloudFront, Sentry

Solo-built B2B SaaS. 0 crashes. 100% uptime over 1 year.

Results

35K+ Users

100% uptime (1 year)

Troky - Mobile app for trading toys and board games. C2C marketplace with circular economy focus.

Project

Troky — C2C Marketplace

Stack

Node.js / Flutter (IOS/Android)

C2C marketplace shipped in 7 days. iOS & Android.

Timeline

7 Days

F.D BAT - Roofing contractor website optimized for lead generation and local SEO.

Project

F.D BAT — Lead Gen Site

Stack

HTML/CSS/JS / SEO / Conversion Optimized

Lead gen site. Conversion-optimized. Ranked page 1 on target keyword.

Timeline

48 Hours

What I Build

Products.

Live SaaS

GuardAPI

API Security Scanner

Enter your API URL, get a full security report powered by AI. Freemium with automated monitoring and CI/CD integration.

5 free scans/month AI Reports CI/CD Ready 24/7 Monitoring

TRY FREE →

100%

Functional

Launching Q2 2026

Case Study • Solo Lead Dev

IDDAN

B2B SaaS for barbershops. Solo dev: features, AWS, monitoring, debugging. 0 server crashes in 1 year.

Flutter Node.js MongoDB AWS

35k+

Users

1 Year

Uptime

More Projects

Side Projects

Troky, F.D Bat, and other freelance projects.

View Projects ↓

About

Kévin Falck