Javascript Developers for hire in Poland

  • Javascript
  • Poland
Suggestions:
more

Countries

Specific Location

Exams

Hourly Rate (USD)

Rating

Online

  • Hire datadiggers
    6.8
    45 reviews $80 USD per hour
    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...
    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. less
  • Hire Grakou
    3.8
    1 review $26 USD per hour
    Hello! I'm coding since I got my first computer: ZX Spectrum – for over 20 years now! Recently making VR games and apps for various headsets and my latest game awarded in Global VR Challenge 2016. Always looking for fresh ideas in terms of experience with an app/game. Not restricting myself to coding, but also: –...
    Hello! I'm coding since I got my first computer: ZX Spectrum – for over 20 years now! Recently making VR games and apps for various headsets and my latest game awarded in Global VR Challenge 2016. Always looking for fresh ideas in terms of experience with an app/game. Not restricting myself to coding, but also: – game/app design – making graphics, – modelling 3D objects, – level design – composing music and sound effects Let's create something great together! less
  • Hire Michal1986
    4.2
    1 review $50 USD per hour
    Freelance PHP, JavaScript, Objective C programmer from Poland. I can also design simple graphic. I use Kohana PHP framework which is very \"lightweight\" and flexible.
    Freelance PHP, JavaScript, Objective C programmer from Poland. I can also design simple graphic. I use Kohana PHP framework which is very \"lightweight\" and flexible. less
  • Hire lockbox
    5.5
    31 reviews $50 USD per hour
    Over 12 years of experience with web development, including about 11 years with php (as manager and developer), over 3 years with nodejs, almost 5 years with freebsd (as sysadmin), over 7 years with simple and/or distributed scrappers/crawlers (php/python/nodejs based workers) and many other technologies around those...
    Over 12 years of experience with web development, including about 11 years with php (as manager and developer), over 3 years with nodejs, almost 5 years with freebsd (as sysadmin), over 7 years with simple and/or distributed scrappers/crawlers (php/python/nodejs based workers) and many other technologies around those things makes me valuable member of Your team. less
  • Hire PawelFlorek
    5.4
    49 reviews $30 USD per hour
    Professional programmer/developer - Extensive experience, solid work performed ...
    Professional programmer/developer - Extensive experience, solid work performed ... less
  • Hire Rexikon
    1.8
    3 reviews $10 USD per hour
    I have gained an extensive experience in the areas of internet security. I also have great experience working as a linux and unix administrator. I also have great experience and a thorough understanding of network administration. I am ready to be hired by you today.
    I have gained an extensive experience in the areas of internet security. I also have great experience working as a linux and unix administrator. I also have great experience and a thorough understanding of network administration. I am ready to be hired by you today. less
  • Hire mobion
    2.5
    2 reviews $30 USD per hour
    Expertise in web technologies. All kinds of web maintenance: - DNS, domain maintenance, - linux administration, - web server configuration/administration/optimization/troubleshooting, - database administration/migration, - PHP/jQuery/css/html - WordPress/WooCommerce expert - moving, optimizing, customizing,...
    Expertise in web technologies. All kinds of web maintenance: - DNS, domain maintenance, - linux administration, - web server configuration/administration/optimization/troubleshooting, - database administration/migration, - PHP/jQuery/css/html - WordPress/WooCommerce expert - moving, optimizing, customizing, troubleshooting. Want a web Pro? Just found one! less
  • Hire wahab1983pk
    6.7
    118 reviews $15 USD per hour
    I am an experienced Website Designer and Developer specialized in Wordpress, Magento, Joomla and Drupal Programmer looking to be hired. I have worked in the areas of CSS, Drupal and HTML for many employers and companies around the world I have a strong foundation in these areas. If my qualifications are suitable for...
    I am an experienced Website Designer and Developer specialized in Wordpress, Magento, Joomla and Drupal Programmer looking to be hired. I have worked in the areas of CSS, Drupal and HTML for many employers and companies around the world I have a strong foundation in these areas. If my qualifications are suitable for you, please consider me for your next job or project. I am ready to be hired by you today and start work. less
  • Hire kaubea
    5.5
    14 reviews $25 USD per hour
    I'm a Computer Science professional with 9+ years experience in Magento development.
    I'm a Computer Science professional with 9+ years experience in Magento development. less
  • Hire pbcode
    4.8
    22 reviews $30 USD per hour
    I put 100% effort into your project and customer satisfaction. I am available online for about 16 hours.
    I put 100% effort into your project and customer satisfaction. I am available online for about 16 hours. less

Hey , here are some offline freelancers

Hey , here are some offline freelancers matching ""