Cancelled

JavaScript specialist to optimize the front-end

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 [url removed, login to view]

2. Login with

user: bugtest at [url removed, login to view],

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.

Skills: HTML, Javascript

See more: optimize website front end, site optimization specialist, review javascript, problem points solution, javascript ajax framework, ajax javascript framework, ajax framework javascript, front end specialist, the view, front end, html ajax javascript, backend optimization, lazyload, codeigniter messages, codeigniter ajax jquery, html code drag, drag sortable, sortable ajax, optimize html, codeigniter refresh, optimize improve, sortable jquery ajax, drag html, jquery lazyload ajax, code review javascript

About the Employer:
( 16 reviews ) Lint, Belgium

Project ID: #4855408

28 freelancers are bidding on average €619 for this job

netdevbiz

Our team have 9+ years experience on web site design & development.We would like to offer our services to you for this job.I sent a private message with my credentials to help narrow your search. Thank you.

€721 EUR in 25 days
(34 Reviews)
7.1
kssoftphp

I am ready and expert in HTML,CSS, jQuery, JAVASCRIPT, DOJO Bootstrap.

€578 EUR in 20 days
(36 Reviews)
6.4
themexlx

Greetings! Please see inbox for detail

€1000 EUR in 35 days
(15 Reviews)
6.3
Ajcm623

hello i have gone through your requriement CAN WE DISCUSS IN FURTHER DETAIL?? thank you

€555 EUR in 10 days
(40 Reviews)
5.7
techwelfare

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
(26 Reviews)
5.7
superlayout

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, WordPr More

€659 EUR in 8 days
(14 Reviews)
5.4
bistanil98

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 More

€600 EUR in 18 days
(7 Reviews)
5.4
coolrankit

------ 3YEARS EXPERIENCED PHP, MySQL, WORDPRESS, HTML, CSS & WEB DEVELOPING EXPERT ------

€500 EUR in 15 days
(20 Reviews)
5.2
on2it

Kia ora! On2itonline.com are a NZ based web and software design company who have seen you here on the freelance market and are really excited about working with you and treating you to the full service, professional ex More

€773 EUR in 21 days
(6 Reviews)
5.0
vw580939vw

Hello We have 4+ years of experience with PHP, Mysql, HTML5, CSS3, Jquery, Javascript. Thanks

€315 EUR in 7 days
(3 Reviews)
4.9
tuxmin

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 Solut More

€721 EUR in 25 days
(2 Reviews)
4.9
aekpani

Hi pls check inbox

€463 EUR in 12 days
(14 Reviews)
4.9
miniric3

Kia ora! Mulvays.com are a NZ based web and software design company who have seen you here on the freelance market and are really excited about working with you and treating you to the full service, professional experi More

€773 EUR in 21 days
(4 Reviews)
4.5
Webtronix1

went through your requirements and I can assure the result within the anticipated time.

€947 EUR in 14 days
(7 Reviews)
4.3
octaneenterprise

+++ Experts here, delivery upto the mark assured +++

€515 EUR in 15 days
(4 Reviews)
4.3
devfactoryvw

excellent jQuery guru here and i can solve your problem with high quality.

€800 EUR in 7 days
(11 Reviews)
4.1
adugar

Hi, We are an expert web developer and ready to start work. Please see PM.

€631 EUR in 20 days
(6 Reviews)
4.0
jdabrowski

Hello, I'm an expert javascript developer and I'm interested in this task.

€300 EUR in 14 days
(12 Reviews)
4.0
votivdeepak

Hello, Ready to start now. We have excellent team of programmers and designers to work on your project efficiently and complete job in time. We have read your deepest requirement at our best and will surely give better More

€789 EUR in 5 days
(7 Reviews)
3.5
zhengnami13

Hi, sir. Please check my pm.

€721 EUR in 10 days
(5 Reviews)
3.4