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$100 USD / hour
Flag of POLAND
barlinek, poland
$100 USD / hour
It's currently 11:09 AM here
Joined June 28, 2012
7 Recommendations

Maciej K.

@datadiggers

5.0 (67 reviews)
7.2
7.2
97%
97%
$100 USD / hour
Flag of POLAND
barlinek, poland
$100 USD / hour
100%
Jobs Completed
100%
On Budget
100%
On Time
35%
Repeat Hire Rate

Website Performance Optimization, Magento Speed Optimization, MySQL Performance Tuning

I make websites faster. I optimize for speed MySQL and Magento. I work ONLY on projects related to performance optimization. What I can do for You ================ - speed up Your website (1-2 second complete page loads), - optimize MySQL server (includes complete audit, query rewriting etc.) - make Magento super fast (1-2 second complete page loads), - improve Your GTMetrix or PageSpeed score to 90+/90+ or even 100/100, - install and configure Varnish, Memcached, Redis and more, - explain everything I'm doing with Your site/server, - provide work log and reports with list of all changes I've made. I also work on other types of optimization projects - PHP code optimization (with profiler), general HTML/CSS/JavaScript optimization projects. I'm also Java developer and I can speed up Your Java code too. I can set up and tune for best performance Nginx, Apache and MySQL clusters. I've worked with small, medium and huge databases (from 1MB to 100GB of data). Who I am ================ I always work with caution, making backups before touching anything else. I'm reliable person which will work on Sunday (if needed) to make sure that Your site is up and running. We can communicate through email, Skype, phone or Google Hangouts. My English is quite good (contrary to many other freelancers I didn't hire anyone to write this text for me). I never failed on any project and I have exceptionally high repeat hire rate (at least in terms of Freelancer.com standards). How to NOT hire a freelancer ================ Even if You decide to not hire me consider those tips when choosing a freelancer - especially if You don't have much experience: - consider only freelancers who can finish their projects, the ones with 95%+ completion rate, - consider only freelancers with high repeat hire rate ( 20% or more) - if it's lower it means that his/hers clients were not satisfied with their work, - most reviews are SPAM and come from colleagues, - do not be impressed by Freelancer.com green score (the one in 0.0 - 10.0 range) - it does not reflect how often freelancer fails on project, his ratings etc.

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Portfolio

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Reviews

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Showing 1 - 5 out of 49 reviews
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5.0
$1,000.00 AUD
Excellent! One of the best freelancers I have ever worked with. Great skills, communication and expertise. A+++++++++++
PHP
JavaScript
XML
Website Design
System Admin
+1 more
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Flag of Anthony B.
@ImagineWebsites
•
7 years ago
5.0
$250.00 USD
Very skilled, great communication, understands what needs to be done and delivers. 100% recommended
Magento
User Avatar
Flag of Martin U.
@activestyle
•
8 years ago
5.0
$240.00 USD
Always a pleasure to work with him.
PHP
Apache
MySQL
HTML
+1 more
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Flag of Test T.
@proyectomx
•
9 years ago
5.0
$336.00 USD
It is always a pleasure working with Matt from DataDiggers. Extremely knowledgeable, excellent communication and wonderful work ethic. I wish I could hire him full-time. Highly recommended 5+.
System Admin
MySQL
User Avatar
Flag of Gary H.
@darkmediak
•
9 years ago
0.0
€3,046.00 EUR
The project is not completed according to the dispute
PHP
Apache
MySQL
HTML
+1 more
User Avatar
Flag of Helvijs E.
@emilseverss
•
9 years ago

Experience

DBA, Software Developer

Data-Diggers
Aug 2008 - Present
MySQL DBA, MySQL optimization, Zen Cart developer, Java/PHP/Scala developer.

Education

Master of Computer Science

Politechnika Wroclawska, Poland 2003 - 2008
(5 years)

Qualifications

Duolingo Proficiency Exam in English

Duolingo
2016
This certificate confirms that I can understand virtually anything heard or read, even intellectually demanding material such as an academic lecture or a book on philosophy. I can use the language fluently and spontaneously. Link to the certificate: https://certs.duolingo.com/vx4sukzp

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