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$28 USD / hour
Flag of BANGLADESH
sylhet, bangladesh
$28 USD / hour
It's currently 5:00 PM here
Joined January 3, 2013
2 Recommendations

Subir C.

@skchybd

annual-level-three.svgpreferred-freelancer-v2.svgverified.svg
5.0 (109 reviews)
6.3
6.3
$28 USD / hour
Flag of BANGLADESH
sylhet, bangladesh
$28 USD / hour
99%
Jobs Completed
97%
On Budget
100%
On Time
26%
Repeat Hire Rate

WordPress (12 yrs)/Magento (10 yrs)/Python expert

Please see my Upwork profile with a lot of experience and excellent feedbacks: [login to view URL] At a glance: * Expert in WordPress (12 years), Magento (9 years), speed optimization (12 years), web server (12 years), python (5 years), webflow, Wix, Squarespace, mathematics, and physics. * Website speed depends on web server configuration & website content. I work in both of them to make a 90%+ page score for mobile & desktop. * I fix core web vital errors. * I use neat and clean coding, search engine friendly coding, optimized coding, w3 validated coding. * I AM A FULL-TIME PREFERRED FREELANCER & I WORK MYSELF. ---------------------------------------------------------- Magento/Woocommerce: ---------------------------------------------------------- 8 years experience in magento and 11 years in woocommerce. I can do anything in Magento & woocommerce Please see my Ecommerce Development profile for more details. ---------------------------------------------------------- WordPress: ---------------------------------------------------------- 12 years of experience in WordPress and I can do anything in WordPress. Please see my CMS Development profile for more details. ------------------------------------------------------------ Page speed optimization skill: ------------------------------------------------------------- Load time/page speed score of a website depends on a lot of factors in web server (CPU, number of CPU cores, CPU Clock Speed, ram, server configuration, server cache, etc) and website content (number of plugins (WordPress), images, pages, page content, etc). Even each line of coding can help improve load time. As I am an advanced-level programmer and I have 12 years of experience in speed optimization, web server and web programming, I can do a lot of work on both web servers and websites to make a site the highest possible fast to load. Only advanced-level programmers can work on both of them. * I fix the issues of LCD, FID and CLS of core web vitals in google search console. Website speed depends on the webserver and website content. There are a lot of works to make a website the highest possible fast to load. Even I can work every line of coding to make it faster to load. Some of the important works for speed improvement I do (but not limited to): 1. js/CSS/image optimization. 2. Image resizing. 3. cleaning and optimizing code. 4. Remove unused plugins and replace plugin functions with the theme. 5. Use any of the best cache plugins which is the best for your website. 6. checking webserver like CPU clock speed, ram, configuration, and fixing issues. 7. reducing server response time. 8. Cache implementation 9.CDN implementation (Cloudflare, stack path etc). 10. removing render-blocking script. 11. reducing first byte (TTFB). 12. remove unused CSS and js.
Freelancer PHP Developers Bangladesh

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Portfolio Items

Pagespeeed optimization. Website url https://www.tatelawoffices.com
Google pagespeed insight score99 for mobile and desktop, GTMetrix A, and LCP-FCP-CLS are very good, I used cheap things,  31 active plugins.
Upwork Project
Pagespeeed optimization. Website url https://www.tatelawoffices.com
Google pagespeed insight score99 for mobile and desktop, GTMetrix A, and LCP-FCP-CLS are very good, I used cheap things,  31 active plugins.
Upwork Project
Very high score and high fast to load though the site has 26 active plugins and hosted on shared plan. This is my upwork project. Please see my upwork profile for more details.
Speed improvement - upwork project
Very high score and high fast to load though the site has 26 active plugins and hosted on shared plan. This is my upwork project. Please see my upwork profile for more details.
Speed improvement - upwork project
Very high score and high fast to load though the site has 26 active plugins and hosted on shared plan. This is my upwork project. Please see my upwork profile for more details.
Speed improvement - upwork project
Very high score and high fast to load though the site has 26 active plugins and hosted on shared plan. This is my upwork project. Please see my upwork profile for more details.
Speed improvement - upwork project
Very high score and high fast to load though the site has 26 active plugins and hosted on shared plan. This is my upwork project. Please see my upwork profile for more details.
Speed improvement - upwork project
I improved page score and CLS, FCP and LCP of this website. All were very bad before my work. But now desktop score is 99 and mobile 95. Also load time is very high. CLS, FCP and LCP are also very nice. Site has 19 active plugins and hosted on shared hosting.
Upwork project
I improved page score and CLS, FCP and LCP of this website. All were very bad before my work. But now desktop score is 99 and mobile 95. Also load time is very high. CLS, FCP and LCP are also very nice. Site has 19 active plugins and hosted on shared hosting.
Upwork project
I improved page score and CLS, FCP and LCP of this website. All were very bad before my work. But now desktop score is 99 and mobile 95. Also load time is very high. CLS, FCP and LCP are also very nice. Site has 19 active plugins and hosted on shared hosting.
Upwork project
I improved page score and CLS, FCP and LCP of this website. All were very bad before my work. But now desktop score is 99 and mobile 95. Also load time is very high. CLS, FCP and LCP are also very nice. Site has 19 active plugins and hosted on shared hosting.
Upwork project
I improved page score and CLS, FCP and LCP of this website. All were very bad before my work. But now desktop score is 99 and mobile 95. Also load time is very high. CLS, FCP and LCP are also very nice. Site has 19 active plugins and hosted on shared hosting.
Upwork project
I improved page score and CLS, FCP and LCP of this website. All were very bad before my work. But now desktop score is 99 and mobile 95. Also load time is very high. CLS, FCP and LCP are also very nice. Site has 19 active plugins and hosted on shared hosting.
Upwork project
This is another upwork project. Please see my upwork profile (https://www.upwork.com/fl/subir). This site has 30 active plugins but still its pagespeed insight score for desktop is 98 and mobile is 89.
andreiaviana.com (upwork project)
This is another upwork project. Please see my upwork profile (https://www.upwork.com/fl/subir). This site has 30 active plugins but still its pagespeed insight score for desktop is 98 and mobile is 89.
andreiaviana.com (upwork project)
It is my upwork project with title "Improve Website Speed For Both Desktop and Mobile". Please see my upwork profile (https://www.upwork.com/fl/subir) to see the project.
I did not use any CDN for this site. If I used CDN for it, pagespeed insight score would be about 100 for both mobile and desktop. But client is happy with this score.
asadkausar.com (my upwork project)
It is my upwork project with title "Improve Website Speed For Both Desktop and Mobile". Please see my upwork profile (https://www.upwork.com/fl/subir) to see the project.
I did not use any CDN for this site. If I used CDN for it, pagespeed insight score would be about 100 for both mobile and desktop. But client is happy with this score.
asadkausar.com (my upwork project)
It is my upwork project with title "Improve Website Speed For Both Desktop and Mobile". Please see my upwork profile (https://www.upwork.com/fl/subir) to see the project.
I did not use any CDN for this site. If I used CDN for it, pagespeed insight score would be about 100 for both mobile and desktop. But client is happy with this score.
asadkausar.com (my upwork project)
It is my upwork project with title "Improve Website Speed For Both Desktop and Mobile". Please see my upwork profile (https://www.upwork.com/fl/subir) to see the project.
I did not use any CDN for this site. If I used CDN for it, pagespeed insight score would be about 100 for both mobile and desktop. But client is happy with this score.
asadkausar.com (my upwork project)
I worked to improve page speed insight and GTMetrix score and make it highest possible fast to load. I also solved problem for LCP & TTFB in Core web vitals in google search console. I worked for the project titled  "Speed expert to improve Aggregate LCP and TTFB" in Upwork. 

Though the website has many bad things for speed like hosted on shared hosting, 10 plugins, a lot of images, many external server scripts etc but it has very high page speed score and it is high fast to load. 
High page speed score can't make high fast to load on mobile. But this site also fast to load on mobile device (load time below 2 seconds). For core web vitals (LCD, FID and CLS) in google search console, it needs to be faster on mobile too. Otherwise core web vitals in search console shows errors.

Please see my upwork profile with a lot of work history and excellent feedbacks https://www.upwork.com/fl/subir
Improve LCP & TTFB (Upwork project)
I worked to improve page speed insight and GTMetrix score and make it highest possible fast to load. I also solved problem for LCP & TTFB in Core web vitals in google search console. I worked for the project titled  "Speed expert to improve Aggregate LCP and TTFB" in Upwork. 

Though the website has many bad things for speed like hosted on shared hosting, 10 plugins, a lot of images, many external server scripts etc but it has very high page speed score and it is high fast to load. 
High page speed score can't make high fast to load on mobile. But this site also fast to load on mobile device (load time below 2 seconds). For core web vitals (LCD, FID and CLS) in google search console, it needs to be faster on mobile too. Otherwise core web vitals in search console shows errors.

Please see my upwork profile with a lot of work history and excellent feedbacks https://www.upwork.com/fl/subir
Improve LCP & TTFB (Upwork project)
I worked to improve page speed insight and GTMetrix score and make it highest possible fast to load. I also solved problem for LCP & TTFB in Core web vitals in google search console. I worked for the project titled  "Speed expert to improve Aggregate LCP and TTFB" in Upwork. 

Though the website has many bad things for speed like hosted on shared hosting, 10 plugins, a lot of images, many external server scripts etc but it has very high page speed score and it is high fast to load. 
High page speed score can't make high fast to load on mobile. But this site also fast to load on mobile device (load time below 2 seconds). For core web vitals (LCD, FID and CLS) in google search console, it needs to be faster on mobile too. Otherwise core web vitals in search console shows errors.

Please see my upwork profile with a lot of work history and excellent feedbacks https://www.upwork.com/fl/subir
Improve LCP & TTFB (Upwork project)
I worked to improve page speed insight and GTMetrix score and make it highest possible fast to load. I also solved problem for LCP & TTFB in Core web vitals in google search console. I worked for the project titled  "Speed expert to improve Aggregate LCP and TTFB" in Upwork. 

Though the website has many bad things for speed like hosted on shared hosting, 10 plugins, a lot of images, many external server scripts etc but it has very high page speed score and it is high fast to load. 
High page speed score can't make high fast to load on mobile. But this site also fast to load on mobile device (load time below 2 seconds). For core web vitals (LCD, FID and CLS) in google search console, it needs to be faster on mobile too. Otherwise core web vitals in search console shows errors.

Please see my upwork profile with a lot of work history and excellent feedbacks https://www.upwork.com/fl/subir
Improve LCP & TTFB (Upwork project)
I worked to improve page speed insight and GTMetrix score and make it highest possible fast to load. I also solved problem for LCP & TTFB in Core web vitals in google search console. I worked for the project titled  "Speed expert to improve Aggregate LCP and TTFB" in Upwork. 

Though the website has many bad things for speed like hosted on shared hosting, 10 plugins, a lot of images, many external server scripts etc but it has very high page speed score and it is high fast to load. 
High page speed score can't make high fast to load on mobile. But this site also fast to load on mobile device (load time below 2 seconds). For core web vitals (LCD, FID and CLS) in google search console, it needs to be faster on mobile too. Otherwise core web vitals in search console shows errors.

Please see my upwork profile with a lot of work history and excellent feedbacks https://www.upwork.com/fl/subir
Improve LCP & TTFB (Upwork project)

Reviews

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Showing 1 - 5 out of 50+ reviews
Filter reviews by: 5.0
$3,000.00 USD
Subir C is an amazing developer - very knowledgeable and always gives advice with my best interests at heart. He is sure to always do his best and work hard and his best is excellent. Thanks Subir.
PHP Website Design CSS Magento MySQL
+1 more
User Avatar
Flag of Neil B. @neilcia
4 months ago
5.0
$100.00 USD
Excellent work as always. Thank you.
PHP CSS Magento MySQL HTML
+1 more
User Avatar
Flag of Farshad T. @ft0472
1 year ago
5.0
$72.08 USD
Excellent Developer, Highly Recommended.
PHP JavaScript SEO Magento HTML
User Avatar
Flag of Scott @contemptx
1 year ago
5.0
$200.00 USD
Excellent work! Subir is well knowledged and has been very helpful to increase the page speed of my site. I will definitely seek for Subir's professional service in the future!
WordPress
J
Flag of Chia Chen W. @joannawutw
2 years ago
5.0
$1,559.44 USD
Very conscientious and quick to respond. I greatly appreciated Subir's contributions to our project.
PHP CSS Magento MySQL HTML
+1 more
User Avatar
Flag of Scott Y. @frewprocessgroup
2 years ago

Experience

Magento/ Wordpress Programmer

Upwork
Jan 2008 - Present
I mostly worked outside of freelancing market places. But I am also working on upwork.

Part Time Teacher

Leading University, Sylhet
Apr 2016 - Dec 2016 (8 months, 1 day)
I worked as a part time teacher for Web Technology course.

Qualifications

Other experiences

Self-taught qualification
1990
I have knowledge in mathematics and physics. I have been increasing my knowledge of these subjects for self-research purpose from my childhood. At present, I have knowledge on the following (but not limited to): Mathematics Knowledge: Algebra, Geometry, Trigonometry, Calculus etc. Physics knowledge: Quantum mechanics, String Theory, Space-time etc.

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Verifications

Preferred Freelancer
Identity Verified
Payment Verified
Phone Verified
Email Verified
Facebook Connected

Certifications

preferredfreelancer-1.png Preferred Freelancer Program SLA 1 100% us_eng_1.png US English 1 87% WordPress.png WordPress 1 85% css_1.png CSS 1 77%

Top Skills

PHP 100 Magento 80
CSS
58
MySQL 53 Website Design 33

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