You will get a Secure HubSpot API Integration & Real-Time Sync
Project details
Is your CRM data falling through the cracks? When your application grows, basic automation tools like Zapier begin to fail. Webhooks get dropped, rate limits crash your workflows, and you end up with duplicate contacts and lost revenue.
I am Krunal, an independent Senior Architect with 13+ years of full-stack experience. I build direct, native HubSpot API integrations into your Node.js, Next.js, React, or custom web application—eliminating fragile middleware and monthly subscription fees forever.
What I Engineer For You:
• Real-Time Two-Way Sync (Contacts, Deals, Forms & Custom Objects)
• Automated Error Recovery (Queued retries so no lead is ever lost)
• Strict Data Validation (Zero duplicate contacts or corrupted fields)
• High-Performance Webhooks (Instant server-to-server updates)
Whether you are connecting a custom SaaS, an AI-built MVP, or an enterprise portal, I deliver a secure, scalable data pipeline tailored exactly to your business logic.
Stop losing leads to broken syncs. Send me a message today to connect your app seamlessly.
I am Krunal, an independent Senior Architect with 13+ years of full-stack experience. I build direct, native HubSpot API integrations into your Node.js, Next.js, React, or custom web application—eliminating fragile middleware and monthly subscription fees forever.
What I Engineer For You:
• Real-Time Two-Way Sync (Contacts, Deals, Forms & Custom Objects)
• Automated Error Recovery (Queued retries so no lead is ever lost)
• Strict Data Validation (Zero duplicate contacts or corrupted fields)
• High-Performance Webhooks (Instant server-to-server updates)
Whether you are connecting a custom SaaS, an AI-built MVP, or an enterprise portal, I deliver a secure, scalable data pipeline tailored exactly to your business logic.
Stop losing leads to broken syncs. Send me a message today to connect your app seamlessly.
Web Programming Project
API Integration, Data DashboardProgramming Languages
PHP, JavaScript, TypeScriptCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$150
|
Standard
$650
|
Advanced
$1,650
|
|---|---|---|---|
| Delivery Time | 1 day | 4 days | 14 days |
Number of Revisions | 2 | 3 | 5 |
Source Code |
Optional add-ons
You can add these on the next page.
Legacy CRM Data Migration
(+ 5 Days)
+$250
Advanced Error Alerting System
(+ 2 Days)
+$95Frequently asked questions
4 reviews
(4)
(0)
(0)
(0)
(0)
This project doesn't have any reviews.
DI
Danny I.
Aug 18, 2026
HTML / CSS / Bootstrap Design and Coding
Krunal was our technical lead/architect across many projects and several generations of our tech stack, and somewhere along the way he stopped feeling like a contractor and started feeling like a partner in the business.
He architected a custom learning platform to replace a sprawl of separate WordPress LMS sites, and it became the backbone of how we delivered every course we ran. He built a centralized admin hub across our sub-brands, with a visual page builder, scheduling links and A/B split testing. When our helpdesk system got too expensive, he researched the alternatives, recommended an open source tool, configured it, and then used AI-assisted coding to write a custom sync module that carried every historical ticket, saved reply and mailbox across intact.
You can trust him with a problem and expect him to come back with research, recommendation, and an implementation plan that the rest of the team doesn't have to think about.
What I valued most is harder to put on a resume. He takes ownership. When something unexpected happened, he would proactively flag it and share what he was doing about it. When I proposed a solution that didn't make sense, he told me so and explained why. He's careful with other people's money and data, and I would trust him with both.
He architected a custom learning platform to replace a sprawl of separate WordPress LMS sites, and it became the backbone of how we delivered every course we ran. He built a centralized admin hub across our sub-brands, with a visual page builder, scheduling links and A/B split testing. When our helpdesk system got too expensive, he researched the alternatives, recommended an open source tool, configured it, and then used AI-assisted coding to write a custom sync module that carried every historical ticket, saved reply and mailbox across intact.
You can trust him with a problem and expect him to come back with research, recommendation, and an implementation plan that the rest of the team doesn't have to think about.
What I valued most is harder to put on a resume. He takes ownership. When something unexpected happened, he would proactively flag it and share what he was doing about it. When I proposed a solution that didn't make sense, he told me so and explained why. He's careful with other people's money and data, and I would trust him with both.
CA
Christopher A.
Jun 5, 2023
Seeking HubSpot API Expert to create Custom Card that populates object property value from JSON
Krunal was great to work with. Very knowledgeable and great communication.
NG
Nimit G.
May 2, 2023
Lead Flow Process Optimization- HubSpot+Webflow+ZoomInfo Integration
Krunal was really helpful and finished the task quickly. He was communicative and ensured that the problems were taken care of. The deadlines were met and the complete project was delivered. I'll recommend his services.
JB
Jordan B.
Dec 28, 2021
WordPress Theme / Site Speed Expert
Krunal is the best freelancer I’ve worked with in 8+ years. It's immediately clear that he's an expert in his field, and he went far above my job requirements to ensure I was satisfied with every aspect of his work.
Krunal's task was to improve my website speed, and he took my Google Lighthouse speed scores up to 90+ (on mobile) and 95+ (on desktop) on virtually every page. He asked thoughtful questions throughout the project to ensure he was making the right decisions, and at the end of the project, we had a 30-minute call where he explained all of the changes he made and answered my questions about those changes.
I am extremely satisfied with Krunal's work and will hire him again whenever I get a chance. If you have the opportunity to work with Krunal, you will not be disappointed.
Krunal's task was to improve my website speed, and he took my Google Lighthouse speed scores up to 90+ (on mobile) and 95+ (on desktop) on virtually every page. He asked thoughtful questions throughout the project to ensure he was making the right decisions, and at the end of the project, we had a 30-minute call where he explained all of the changes he made and answered my questions about those changes.
I am extremely satisfied with Krunal's work and will hire him again whenever I get a chance. If you have the opportunity to work with Krunal, you will not be disappointed.
About Krunal
Software Architect | AI Integration, Node.js & SaaS Modernization
Vadodara, India - 3:05 am local time
I am a Senior Software Architect and Technical Lead. I act as a strategic partner to businesses.
Over the last 13+ years, I’ve worked across the full stack—from legacy modernization to modern Node.js/TypeScript applications, API integration, Payment Integration, and custom AI integrations.
I provide the technical leadership required to:
• Architect scalable enterprise systems from the ground up.
• Integrate GenAI/LLM capabilities with strict data validation.
• Modernize legacy systems with minimal business downtime.
• Stabilize critical integrations for high-volume traffic.
PROVEN BUSINESS OUTCOMES:
• Revenue Infrastructure: Architected high-volume checkout engines processing multi-million dollar annual transactions, integrating UltraCart and Ontraport to secure recurring revenue.
• Engineering Leadership: Scaled an agency engineering department to 10+ developers as Lead Architect, cutting development cycles by 30% through reusable base architectures.
• Ecosystem Orchestration: Engineered secure API bridges and webhooks to unify global marketing data across HubSpot, Google Workspace, and custom backends.
• Enterprise Data Migration: Executed a flawless, zero-data-loss migration of an enterprise helpdesk, securely transferring 200,000+ historical support threads to self-hosted infrastructure.
• Advanced Integrations & AI: Built specialized Stripe payment routing engines, and embedded GenAI (Google Gemini) pipelines into EdTech platforms with strict JSON schema validation to eliminate model hallucinations.
CORE TECH STACK:
• Backend: Node.js, TypeScript, REST APIs, Webhooks, PHP
• Frontend: React, Angular
• Data & Cloud: PostgreSQL, Redis, BullMQ, Docker
• Integrations: Stripe API, Google Workspace, Gemini AI / LLMs
HOW I WORK:
I step in when off-the-shelf solutions fail or legacy systems become too fragile. I take total project ownership—delivering the research, architecture, and implementation plans so leadership doesn't have to worry about technical execution.
Most importantly, I am careful with other people's money and data, and I build infrastructure strictly designed to protect both.
If you are looking for an architect to permanently eliminate your technical debt, let's schedule a consultation.
Steps for completing your project
After purchasing the project, send requirements so Krunal can start the project.
Delivery time starts when Krunal receives requirements from you.
Krunal works on your project following the steps below.
Revisions may occur after the delivery date.
API Discovery & Data Schema Mapping
Review your application architecture, map HubSpot contact/deal properties, and design the optimal direct API and webhook blueprint.
Custom API Pipeline & Webhook Engineering
Develop native Node.js/TypeScript API endpoints, configure bi-directional webhooks, and implement automated retry queues for zero data loss.