FusionSync

FusionSyncAI

Delivery record

Production builds and client reviews

Named software we shipped for founders and agencies in Italy, Canada, Switzerland, and the US. SaaS platforms, voice AI, CRM automation, and full-stack delivery with ratings and quotes you can read before we talk.

Message Me on WhatsApp →Read client reviews →

Named customers

Six production builds

Who we built for, where they are based, live URLs where the product is public, and the technical stack each engagement needed.

LogoArena

DanielItaly
logoarena.com

Full-stack logo contest and marketplace platform. Long-term partnership spanning frontend, backend, and ongoing feature delivery for a live Italian SaaS brand.

Next.jsFull Stack DevelopmentSaaSMarketplaceLong-term retainer

2 client reviews below.

Hiding Elephant

AvielItaly
hidingelephant.com

AI logo generation SaaS for professional designers. Repeat engagement building the full product experience from generation flows to production deployment.

Next.jsAI Image GenerationSaaSFull Stack DevelopmentProduct design

1 client review below.

UseCortana

Matei ParvuCanada
usecortana.ai

Multi-channel AI sales agent platform with voice, text, and agentic CRM. Fixed-price SaaS build plus ongoing hourly delivery for AgentKong product work.

VAPIVoice AIAI Agent DevelopmentNext.jsLiveKitAgentic CRM

2 client reviews below.

MeisterFlow

Guliver KalambaSwitzerland
app.meisterflow.ch

Multi-tenant booking and invoicing platform for home services. Next.js and Supabase architecture with AI automation hooks, tenant isolation, and Stripe billing.

Next.jsSupabaseStripeMulti-tenant SaaSAI AutomationBooking systems

1 client review below.

Real Estate Underwriting SaaS

Patrick AmpemUSA
Private beta

Domain-led vertical software for real estate underwriting workflows. Custom intake, document handling, and CRM-connected ops built around how underwriters actually work.

Workflow AutomationDocument ProcessingCRM IntegrationVertical SaaSNext.js

1 client review below.

Image Generation SaaS

Pawel SazarykCanada
Client-owned product

Full-stack web application for AI image generation. Fixed-price delivery from scoped MVP through production-ready SaaS surfaces.

Next.jsAI Image GenerationSaaSWeb Application DevelopmentAPI Integration

1 client review below.

Client reviews

What clients left after we shipped

Fourteen reviews from SaaS, AI agent, workflow automation, and full-stack projects. Each card shows the rating, project scope, and quote where it appears in the screenshot.

Client review screenshot: AI Sales Bot and SaaS Web App project valued at $24,500 fixed price. Client quote: Respectful, knowledgeable, honest and smart.
5.0$24,500

AI Sales Bot / Chat Bot | SaaS Web App

“Respectful, knowledgeable, honest and smart. Good character and good work ethic combined for a great experience.”

5.0 review on a $24,500 AI sales bot and SaaS web app build.

Client review screenshot: AgentKong hourly engagement: $3,915 across 131 hours at $30 per hour. Client endorsed Professional delivery.
5.0$3,915

Hourly Rate - AgentKong

“Respectful, knowledgeable, honest and smart. Good character and good work ethic combined for a great experience.”

5.0 review on 131 hours of AgentKong product work.

Client review screenshot: long-term frontend and full stack work: $16,399 across 1,754 hours. Client quote praises Shubham as a top developer and expert.
5.0$16,399

Frontend / Full Stack Developer for Long Term Work

“Wow. It has been an absolutely incredible experience working with Shubham. Beyond the fact that he is a top developer and true expert in his field, he is also a great collaborator.”

5.0 review after 1,754 hours of long-term full stack work.

Client review screenshot: Full Stack AI Developer long-term work: $8,144 across 679 hours. Client endorsed Reliable, Committed to Quality, Clear Communicator.
5.0$8,144

Full Stack AI Developer for Long Term Work

“Really enjoyed working with Shubham. He is creative, dependable, and easy to collaborate with. Work completed on time, communication was great, and quality stayed high.”

5.0 review on 679 hours of full stack AI development.

Client review screenshot: Hiding Elephant full stack development: $3,345 across 335 hours. Repeat client praised skills and personality on second project together.
5.0$3,345

Full Stack Development

“This was our second project working with Shubham, and just like the first, we had a fantastic experience throughout. Both skills and personality made delivery smooth.”

5.0 repeat-client review on Hiding Elephant full stack work.

Client review screenshot: Multi-Tenant Booking and Invoicing Platform built with Next.js and Supabase. $1,200 fixed price. Client praised scalable thinking beyond requirements.
5.0$1,200

AI Automation Developer - Multi-Tenant Booking & Invoicing Platform (Next.js/Supabase)

“Building a SaaS platform is challenging. Shubham consistently came up with smarter, more scalable solutions and was always thinking several steps ahead.”

5.0 review on a multi-tenant booking and invoicing SaaS build.

Client review screenshot: AI SaaS Platform for Real Estate project. $2,000 fixed price. Project ran Oct 2024 through Oct 2025.
4.0$2,000

AI SaaS Platform for Real Estate

4.0 review on a real estate underwriting SaaS platform.

Client review screenshot: Web Application Development project. $2,000 fixed price delivered Jul through Sep 2024.
5.0$2,000

Web Application Development

5.0 review on a full-stack image generation web application.

Client review screenshot: n8n workflow automation and Supabase vector store integration. $500 fixed price. Client endorsed Reliable, Detail Oriented, Solution Oriented, Collaborative.
5.0$500

N8N Workflow automation and Supabase Vector Store

“Shubham did great work. Fast response time, great attention to detail. He brought suggestions and implemented them to improve the overall workflow.”

5.0 review on n8n plus Supabase RAG workflow delivery.

Client review screenshot: ongoing n8n part-time AI workflow work. $503 across 25 hours. Client quote: very knowledgeable on AI workflows.
5.0$503

N8N part-time work ongoing

“It was great working with Shubham, he is very knowledgeable on AI workflows!”

5.0 review on ongoing n8n AI workflow automation.

Client review screenshot: Sales Order Agent n8n automation project. $180 across 9 hours at $20 per hour.
5.0$180

Sales Order Agent - n8n Automation

“nice work!”

5.0 review on a custom n8n sales order agent build.

Client review screenshot: AI Workflows and Automation setup. $325 fixed price. Client quote: Great work and great communication.
5.0$325

AI Workflows and Automation set up

“Great work and great communication. Brings experience and technical skill. A+”

5.0 review on AI workflow and automation setup.

Client review screenshot: Full Stack Development Timeline Project. $3,544 across 295 hours. Client endorsed Professional delivery.
5.0$3,544

Full Stack Development - Timeline Project

“It was a pleasure working with Shubham. He is skilled, professional, and very responsive. He understood requirements quickly and delivered great results.”

5.0 review on a full stack timeline product build.

Client review screenshot: Expert Full Stack Developer on a Next.js SaaS project. $588 across 49 hours. Client endorsed Committed to Quality and Professional.
5.0$588

Expert Full Stack Developer for Next.js SaaS Project

“Shubham was excellent throughout the project. Responsive, professional, and consistently delivered quality work. He took time to understand our goals and executed efficiently.”

5.0 review on expert Next.js SaaS full stack delivery.

Frequently asked questions

Before you message on WhatsApp.

Ready to add similar fulfilment for your clients?

Bring your vertical, client count, and the gap you cannot fill in-house. Same delivery pattern, your brand on top.

Message Me on WhatsApp