Das sagen Kunden

“He successfully set up our Pipedrive CRM, integrated Fireflies, RingCentral, and Facebook Lead Ads, and ensured everything worked together seamlessly. His technical expertise saved us a tremendous amount of time, and the quality of the work exceeded my expectations.”

“The job ended up taking far longer and required more work than we had thought, but Zinnatul waited patiently and completed all the extra work flawlessly. He explained each step to me, advised me on how to proceed, and demonstrated an impeccable skill level.”

“Zinnatul is the real deal. I originally hired him for a Mailchimp and FUB integration, and he ended up saving my entire email marketing infrastructure. Mailchimp hit my account with compliance issues that would have shut most people down, but he navigated the entire situation calmly, technically, and with total confidence.

He handled ZeroBounce validation, multi layer scrubbing, API based syncing, and all the deliverability concerns that come with a large mixed source list. His explanations were clear, his strategy was accurate, and he consistently recommended the safest and most scalable workflow, even when it meant more work on his side.

When it became clear that the damage I had done in Mailchimp could not easily be undone, he immediately created a new solution using Sender dot net. He designed a clean workflow, rebuilt the automation path, and gave me a stable and future proof system. Zinnatul stays focused on solutions. He does not get stuck. He adapts and delivers.

What impressed me most is that he thinks like an engineer, not a task doer. He anticipates risk, solves problems before they happen, and builds systems that actually scale. I trust him with the technical backbone of my CRM, my automation, and my email systems. He has absolutely earned a spot on my short list for future work.

If you need someone who understands APIs, integrations, compliance, and real world deliverability, hire him. You will not regret it.”

“He didn't just execute on my original idea but he improved it, suggesting a more cost-effective platform and a smarter architecture that will serve my business better long term. The finished automation exceeded what I originally envisioned.”

“Very impressed, we had an excellent experience working with Zinnatul! He provided top level development skills, along with quality result testing. He is fast, professional, and an expert in his skillset.”