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English
$
USD
I will be your hubspot developer for api integration, webhooks and custom objects
Monirul Islam
Level 2
4.8
4.8
Gig Summary
About this gig
Your HubSpot needs to talk to the rest of your stack. I make that happen.
I'm a HubSpot developer, not a marketer. I work on the HubSpot API rather than just the dashboard, so when native integrations run out of road, that is where I start.
What I build:
HubSpot integration with your app, database or third-party tools
Two-way contact, deal and company sync that survives edge cases
HubSpot webhooks so your system reacts to CRM events in real time
Custom objects and properties modelled on how your business actually works
HubSpot workflow and pipeline automation beyond what the UI allows
How I work:
You keep everything. Code runs on your infrastructure with your API keys, no monthly fee to me.
Built for failure. Rate limits, retries and logging, because APIs go down and data must not be lost.
Documented handover so your team can maintain it.
Stack: Python, HubSpot API v3, OAuth, webhooks, PostgreSQL, and Zapier or Make when they are genuinely the cheaper answer.
Not sure your integration is possible? Message me what you are trying to connect and I will tell you honestly, including when a no-code tool would do it for less.
Get to know Monirul Islam
Monirul Islam
AI Chatbot and RAG Systems Engineer, Python Django Developer
Level 2
- FromBangladesh
- Member sinceJul 2021
- Avg. response time1 hour
- Last delivery5 months
Languages
English
I build backend systems where the numbers have to be right.
Day job: double-entry accounting for a Swiss financial firm - multi-currency FX, VAT, ISO 20022 reconciliation, audit-grade ledgers.
Same rigour here:
- AI chatbots and RAG systems grounded in your own documents
- Web apps, ERP dashboards, inventory and order tracking (Python, Django, PostgreSQL)
- OCR and LLM pipelines that turn invoices into structured data
- REST APIs and CRM integrations, including HubSpot
154 orders, 118 clients, 4.8 stars over 6+ years.
Tell me what's breaking and I'll tell you straight if I can help.
My Portfolio
FAQ
Can you connect HubSpot to a tool with no native integration?
Usually yes. If the other tool has an API or webhooks, I can build the bridge. Tell me both tools before you order and I will confirm it is possible, including when Zapier or Make would do the job for less.
Do I need a paid HubSpot plan for API work?
The API works on free HubSpot, but custom objects and some workflow features need Enterprise. I will tell you upfront which tier your build actually needs, before you spend anything on an upgrade.
Do I own the code, or am I locked into you?
You own it. The integration runs on your infrastructure using your own HubSpot API keys, and you get the source and documentation. No monthly fee to me and no dependency on me to keep it running.
What happens if the API fails or hits rate limits?
That is designed for, not hoped against. Standard and Premium include retry logic, rate limit handling and logging, so a failed call is retried and recorded rather than silently losing your data.
I am not technical. Can you still help?
Yes. Describe the outcome you want in plain terms, for example when a deal closes create a record in our billing system, and I will work out the technical route and explain it without jargon.
Reviews
58 reviews for this Gig
| (54) | ||
| (2) | ||
| (0) | ||
| (2) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
C csmaillet
United States
Monirul went above and beyond to get my existing data (that wasn't organized or even in a spreadsheet) into HubSpot. He worked hard figuring out different ways to make it work, and finally succeeded. He definitely knows HubSpot and saved me months of manual input.
$50-$100
Price
5 days
Duration
Helpful?S sadialeistner
United States
Good communication and delivery of hubspot crm setup!
$100-$200
Price
5 days
Duration
Helpful?S 
sacha_webley
United States
Great work so far!
$200-$400
Price
5 days
Duration
E 
Seller's Response
Helpful?V 
vgonza01
United States
This is the second time that I've worked with Monirul on a HubSpot project. I hired him to import 2868 contacts to HubSpot. He is a master! I highly recommend him for all of your HubSpot projects!!!
$50-$100
Price
13 days
Duration
Helpful?E estaservices
United Arab Emirates
Monirul is absolutely amazing very polite very knowledgeable and experienced. He completely understood our problem and solved the underlying issues of our HubSpot integration.
$50
Price
6 days
Duration
Helpful?
Reviews
58 reviews for this Gig
| (54) | ||
| (2) | ||
| (0) | ||
| (2) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
C csmaillet
United States
Monirul went above and beyond to get my existing data (that wasn't organized or even in a spreadsheet) into HubSpot. He worked hard figuring out different ways to make it work, and finally succeeded. He definitely knows HubSpot and saved me months of manual input.
$50-$100
Price
5 days
Duration
Helpful?S sadialeistner
United States
Good communication and delivery of hubspot crm setup!
$100-$200
Price
5 days
Duration
Helpful?S sacha_webley
United States
Great work so far!
$200-$400
Price
5 days
Duration
E Seller's Response
Helpful?V vgonza01
United States
This is the second time that I've worked with Monirul on a HubSpot project. I hired him to import 2868 contacts to HubSpot. He is a master! I highly recommend him for all of your HubSpot projects!!!
$50-$100
Price
13 days
Duration
Helpful?E estaservices
United Arab Emirates
Monirul is absolutely amazing very polite very knowledgeable and experienced. He completely understood our problem and solved the underlying issues of our HubSpot integration.
$50
Price
6 days
Duration
Helpful?
