Find Jobs
Hire Freelancers

JavaScript specialist to optimize the front-end

€250-750 EUR

Cancelled
Posted over 10 years ago

€250-750 EUR

Paid on delivery
We are looking for a GOOD specialist in HTML and JS to improve the front-end of our website: 1. Optimizing Drag&Drop functionality (using JQuery Sortable & Droppable plugins). 2. Implementing a Lazyload solution that would only load part of the content and initial load and then keep loading the rest based on the scrolling position of the view. 3. General optimization of JS and HTML on our website (will be discussed after the two points above resolved). 4. Optimize our auto-refresh mechanism by channeling all ajax requests via a common infrastructure and a predefined set of messages instead of "give me everything" we can say "send this info" and then refresh only a particular part of the page. Our site is using Codeigniter framework for backend and mostly jquery and jquery ui for front-end js. The plugins used for drag&drop are Sortable, Nestedsortable, Droppable. Please take a look at a problem we experience already: 1. Go to [login to view URL] 2. Login with user: bugtest at [login to view URL], pass: pub12345 3. Open Bookmarks tab 4. On the left side you will see a list of categories, try to drag one of them. When dragging it becomes very laggy, This doesn't happen when there are not many categories in the tab. Since it's hard for anyone to bid without seeing the actual code, no matter what the bid will be, we will discuss the price after you will review the code and propose all the optimizations that will be done.
Project ID: 4855408

About the project

26 proposals
Remote project
Active 11 yrs ago

Looking to make some money?

Benefits of bidding on Freelancer

Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
26 freelancers are bidding on average €612 EUR for this job
User Avatar
hello Sir please check PMB
€473 EUR in 3 days
4.7 (66 reviews)
7.4
7.4
User Avatar
Greetings! Please see inbox for detail
€1,000 EUR in 35 days
4.7 (36 reviews)
6.9
6.9
User Avatar
I am ready and expert in HTML,CSS, jQuery, JAVASCRIPT, DOJO Bootstrap.
€578 EUR in 20 days
4.9 (54 reviews)
6.7
6.7
User Avatar
Hello We have 4+ years of experience with PHP, Mysql, HTML5, CSS3, Jquery, Javascript. Thanks
€315 EUR in 7 days
4.9 (27 reviews)
6.5
6.5
User Avatar
hello i have gone through your requriement CAN WE DISCUSS IN FURTHER DETAIL?? thank you
€555 EUR in 10 days
4.9 (76 reviews)
6.5
6.5
User Avatar
hi we could do it perfectly with accuracy, please let us know if you want any clarification. please check inbox for our previous work.
€736 EUR in 12 days
4.6 (130 reviews)
7.0
7.0
User Avatar
+++ Experts here, delivery upto the mark assured +++
€515 EUR in 15 days
4.9 (28 reviews)
5.9
5.9
User Avatar
I have check this requirement,have some query,so need to discuss this,please tell me how we can start the discussion. to know more about us please check Private Message. We have a team of professionals,they have more than 11 year of experience,so we can manage this work and will give you quality solution.
€600 EUR in 18 days
4.9 (17 reviews)
5.8
5.8
User Avatar
Hi, We are an expert web developer and ready to start work. Please see PM.
€631 EUR in 20 days
4.9 (34 reviews)
5.8
5.8
User Avatar
------ 3YEARS EXPERIENCED PHP, MySQL, WORDPRESS, HTML, CSS & WEB DEVELOPING EXPERT ------
€500 EUR in 15 days
4.9 (30 reviews)
5.8
5.8
User Avatar
Hi, We are a team of designers and developers who are in this field from more than 13 years. We are a web design and Development Company, providing web development in PHP, CMS based websites, E-commerce website, WordPress, Joomla, Drupal, Magento, Responsive, HTML5, web design template, logo design, brochure design and banner design... We also provide SEO and hosting services. Please check PMB. Thanks and Regard
€659 EUR in 8 days
4.9 (21 reviews)
5.4
5.4
User Avatar
excellent jQuery guru here and i can solve your problem with high quality.
€800 EUR in 7 days
4.9 (18 reviews)
4.7
4.7
User Avatar
We are a Talented Group of IT Engineers have through knowledge of versatile technologies. Built in such a manner that to fit for any type of IT solutions. Areas of expertise are as Application Development, Web Solution by Ruby on Rails as well as in PHP, Database Solutions by Mysql, Postgresql, SQLite etc, All types of Network Solutions, UI and FrontEnd Development, SEO Implementation. Also having expertise in System Analysis, Requirement Gathering, QA, Versioning Control Tools(Github,Amazon), Scripts such as HTML, HAML, Javascript, JQuery knowledge.
€721 EUR in 25 days
4.8 (8 reviews)
5.0
5.0
User Avatar
Hello, I'm an expert javascript developer and I'm interested in this task.
€300 EUR in 14 days
5.0 (15 reviews)
4.7
4.7
User Avatar
went through your requirements and I can assure the result within the anticipated time.
€947 EUR in 14 days
5.0 (7 reviews)
4.4
4.4
User Avatar
Hi pls check inbox
€463 EUR in 12 days
4.1 (17 reviews)
5.1
5.1
User Avatar
Lets start
€526 EUR in 3 days
5.0 (2 reviews)
2.1
2.1
User Avatar
hi, i am highly interested to work with you. please check on my PMB.
€555 EUR in 3 days
0.0 (1 review)
0.0
0.0
User Avatar
I have experience in similar projects and interested in this opportunity
€555 EUR in 3 days
0.0 (0 reviews)
0.0
0.0
User Avatar
i understand your following requirements.i will fulfill your expectations.
€555 EUR in 4 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of BELGIUM
Lint, Belgium
5.0
16
Payment method verified
Member since Dec 21, 2011

Client Verification

Thanks! We’ve emailed you a link to claim your free credit.
Something went wrong while sending your email. Please try again.
Registered Users Total Jobs Posted
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Loading preview
Permission granted for Geolocation.
Your login session has expired and you have been logged out. Please log in again.