Sadi Rahman

CRM Developer & SaaS App Developer

Certified Zoho CRM, HubSpot, Pipedrive and GoHighLevel (GHL) developer and web & mobile SaaS app developer from Dhaka, Bangladesh. With 9+ years of experience and 400+ completed projects as a Top Rated freelancer, I build CRM systems, API integrations and AI-powered business automation that save time and help sales teams close more deals.

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CRM, Integration & SaaS Services

CRM Development

Zoho CRM, HubSpot, Pipedrive and GoHighLevel setup, customization, pipelines, custom modules and Deluge functions built around your sales process.

Integration & Automation

REST API integrations, workflow automation and AI agents with n8n, Zapier and Make that connect your CRM to forms, ads, accounting and email.

SaaS App Development

Custom web SaaS platforms and mobile apps with secure dashboards, payments, roles and AI features, designed to launch fast and scale.

ABOUT ME

Zoho, HubSpot, Pipedrive & GHL CRM Expert and SaaS Developer

Skills

I help startups, agencies and growing businesses replace manual work with a CRM that actually works. I start by understanding your business process, then design the CRM, integrations and automations that keep leads, deals and customers moving, with no spreadsheets or copy-paste.

ZOHO CRM & ZOHO ONE

HUBSPOT CRM

PIPEDRIVE & GOHIGHLEVEL

API INTEGRATION & AI AUTOMATION

Experience

Top Rated freelancer on Upwork with $100K+ earned, 400+ jobs and 297 client reviews, plus HubSpot Inbound, HubSpot Marketing Software and Google Ads certifications.

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Venty Digital — CEO Leading CRM implementation, SaaS and web app development projects for clients worldwide.
Amper Digital — Co-Founder Co-founded a digital agency delivering CRM automation, integrations and marketing systems.
Bricktop Marketing — Co-Founder Built marketing automation, funnels and lead management workflows for growing brands.
Upwork — Top Rated CRM Expert Zoho One, HubSpot, Pipedrive, Close and Freshsales setups, migrations and automations for 400+ projects.

WHAT I DO

CRM, Automation & SaaS Development Services

Zoho CRM Development & Customization

Custom Zoho CRM and Zoho One setup, Blueprints, Deluge functions and integrations built around your sales process.

HubSpot CRM Setup & Integration

HubSpot CRM setup, pipelines, lead scoring and workflows, integrated with your website, email and ad platforms.

Pipedrive CRM Setup & Automation

Pipedrive pipelines, custom fields and sales automation so every lead gets the right follow-up on time.

GoHighLevel (GHL) CRM & Funnel Automation

GoHighLevel funnels, workflows, SMS, calendars and snapshots that capture and nurture leads automatically.

API Integration & AI Workflow Automation

REST API, webhook, n8n, Zapier and Make integrations plus AI agents that remove manual data entry.

Web & Mobile SaaS App Development

Custom SaaS web apps and iOS/Android mobile apps with dashboards, payments, CRM sync and AI features.

CASE STUDIES

Recent CRM & SaaS Projects

HubSpot CRM Integration with WordPress, Mailchimp & Jotform

HubSpot CRM connected to WordPress, Jotform and Mailchimp with lifecycle stages and source tracking.

Website Form to Zoho CRM Integration

Real-time website and Wix form integration with Zoho CRM via API, with dedupe and assignment rules.

AI CRM Builder SaaS Platform

Multi-tenant SaaS where AI agents help businesses build an industry-ready CRM in minutes.

Zoho One & Zoho CRM Implementation

Phased Zoho One rollout: CRM modules, Blueprints, Zoho Forms and Campaigns in one connected workspace.

Pipedrive CRM Setup & Sales Automation

Pipedrive pipeline with Zapier form intake, automated fee emails, SMS alerts and follow-up sequences.

Zoho Marketing Automation Setup

Zoho Marketing Automation with CRM sync, lead scoring, nurturing journeys and team training.

CRM & AUTOMATION BLOG

Latest Insights

October 27, 2026

How to Build a SaaS MVP: A Practical Guide for Founders

A practical guide to building a SaaS MVP: validating the idea, choosing must-have features, picking a tech stack,...

Read Full Article

October 24, 2026

Zoho CRM Automation with Deluge: 8 Custom Functions That Save Hours

Eight practical Zoho CRM Deluge custom function ideas to automate data entry, calculations, integrations and follow-ups beyond standard...

Read Full Article

October 21, 2026

CRM Integration Checklist: Connect Your CRM with Forms, Ads, Email and Accounting

A step-by-step CRM integration checklist for connecting Zoho, HubSpot, Pipedrive or GoHighLevel with website forms, ad platforms, email...

Read Full Article

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LET'S TALK

Hello, I'm

Sadi Rahman

CRM, Integration & SaaS Services

CRM Development

Integration & Automation

SaaS App Development

Zoho, HubSpot, Pipedrive & GHL CRM Expert and SaaS Developer

Skills

ZOHO CRM & ZOHO ONE

HUBSPOT CRM

PIPEDRIVE & GOHIGHLEVEL

API INTEGRATION & AI AUTOMATION

Experience

CRM, Automation & SaaS Development Services

Zoho CRM Development & Customization

HubSpot CRM Setup & Integration

Pipedrive CRM Setup & Automation

GoHighLevel (GHL) CRM & Funnel Automation

API Integration & AI Workflow Automation

Web & Mobile SaaS App Development

Recent CRM & SaaS Projects

HubSpot CRM Integration with WordPress, Mailchimp & Jotform

Website Form to Zoho CRM Integration

AI CRM Builder SaaS Platform

Zoho One & Zoho CRM Implementation

Pipedrive CRM Setup & Sales Automation

Zoho Marketing Automation Setup

Latest Insights

How to Build a SaaS MVP: A Practical Guide for Founders

Zoho CRM Automation with Deluge: 8 Custom Functions That Save Hours

CRM Integration Checklist: Connect Your CRM with Forms, Ads, Email and Accounting

Book a Free CRM Consultation

Quick Links

Contacts