I'm Saabbir. I've been building for the web since 2016. These days most of my work is Shopify themes, frontend performance, and A/B testing. I'm a senior engineer at EchoLogyx in Dhaka.
Most of what I know came from building things, breaking them, and working out why they broke.
At EchoLogyx, I ran a suiting test for a UK fashion retailer. Model photos lifted revenue per visitor by 50%.
Read the case study →
At EchoLogyx, a homepage carousel for a UK consumer brand lifted add to basket by 35%.
I cut the time it takes a phone to show a finished product page by 17%. On a computer the page started painting 25% sooner.
I've been at EchoLogyx since 2021. I lead the Shopify frontend team — themes, A/B tests, and the speed work that comes after. Client names on this site are withheld.
Visit EchoLogyxFour things, mostly. They overlap more than you'd think — a slow product page and a failed test are often the same problem.
Built from scratch, or working inside a theme someone else wrote. Most of my time goes on the parts that are easy to get wrong and expensive to fix later: the product page, the cart, and whatever is making the first screen slow.
I set up tests that answer one question at a time, then read the results honestly — including the ones that come back flat. Convert, Optimizely, VWO, Adobe Target, AB Tasty. Most of the value is in working out what's worth testing at all.
This starts with measuring the page properly instead of guessing. Then it's the unglamorous work: getting the hero image on screen sooner, stopping the header from jumping, and finding which third-party script is costing you two seconds.
GA4 and Tag Manager set up so the numbers mean something. If you can't trust the funnel, there's no point testing against it.
Saabbir is one of the best, if not THE best, developers I have ever had the pleasure of working with in my career. I recently worked with him on a large enterprise client, and he was a MAJOR reason for their testing success. He's unbelievably fast, super knowledgable, proactive, lovely to work with, and always found solutions for anything that came up. Anyone that gets to have Saabbir on their team is very lucky!
Saabbir has been an integral part of our development operations. Despite being remote with very different timezone, he's been very capable of adapting and integrating into our US-based operations. Very creative, prompt, and skilled.
I work at EchoLogyx. Questions about a write-up can come to me. For project work, contact EchoLogyx. I reply within a day or two.