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Database Expert Needed for Big Data Storage & Retrieval

$30-250 USD

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已发布大约 6 年前

$30-250 USD

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Background: We have a huge pool of data (in billions) stored in both .cvs & .sql formats that needs to be stored in one database and retrieved later by an api. We had another team built a database with data uploading tool (loading .cvs data into mysql), however, the database was not indexed, retrieval was super slow, and finally crashed. Task: We need a big data expert to build a robust database that can handle this data amount & retrieval with ease. Must incorporate the uploading tool for future addition. Structure is definitely important (altho the data is just simple stock data), as well as speed! Deadline: 1 week max Note: this is a fixed-budget project, but we always love to award competent & efficient engineers with generous bonuses!! **Auto messages will not be considered, propose your best solution to get awarded!
项目 ID: 16430289

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21提案
远程项目
活跃6 年前

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21威客以平均价$230 USD来参与此工作竞价
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I can offer a solution, I have experience of processing 100s of millions of records and 100s of GB of data. Please let me know if you are interested and we can discuss.
$277 USD 在7天之内
4.8 (277条评论)
8.2
8.2
用户头像
Greeting, I have understood your Database Expert Needed for Big Data Storage & Retrieval task and can do it with your 100% satisfaction. Please ping me for more discussion. I have more than 5 years of experience in Database Programming, Microsoft Access, MySQL, PHP, SQL
$200 USD 在3天之内
4.9 (156条评论)
7.4
7.4
用户头像
Dear, we are Team of French + US. I checked your project description, and I confirm I can develop your program. I will focus on user friendly interface. As you can see I have very good rate, you can be sure I am serious. Regards, Fabrice
$136 USD 在3天之内
4.8 (95条评论)
7.4
7.4
用户头像
Dear sir, I think you needs to move your database to MS SQL its powerful and also it depends on the good methods used to retrieve this data, Hire me and you will see the magic :) Regards
$277 USD 在7天之内
5.0 (71条评论)
5.7
5.7
用户头像
I can cater your requirement, I have two approaches which I propose. We should be able to select the best option once I have the detailed requirements of the project. Approach 1. - Preferred unless you have any conflicting business requirement to keep the relational model Use a document database (mongodb) to store the data as documents, which will speed up the retreival Approach 2. Use the existing database structure with improvements to the table structure and indexes for faster retreival. However I'll need to investigate and find out whats causing the slowness in retreival first before doing any modifications. I will need your expected retrieval time window, in order to optimize. I can build you the access api on either nodejs or SpringBoot.
$250 USD 在7天之内
5.0 (14条评论)
5.2
5.2
用户头像
Based on what you've written, the easiest way is to speed up your existing base, not create a new one. I have the necessary experience and I am sure that I will be able to do it. I am ready to start work without prepayment. If I fail, you will lose nothing.
$98 USD 在7天之内
5.0 (35条评论)
5.2
5.2
用户头像
Big data expert here. Since you'd like to handle big data and for this retrieval to be easy, I'd recommend MongoDB or Cassandra, perhaps coupled with Apache's Hadoop. I would venture a guess that the database that the other team built was most likely a relational DB which is a NIGHTMARE for this kind of job.
$188 USD 在3天之内
5.0 (7条评论)
3.3
3.3
用户头像
Hello, Please let me know if you consider company professional for this task. We are an ISO 9001:2008 and ISO 27001:2005 certified company and doing business in this sector for over 10 years now. We also provide AWS services with account monitoring tool. We need to discuss with you before we can give a price and time frame to complete this big data project otherwise it will be a waste of time for both of us. Thanks.
$250 USD 在3天之内
5.0 (8条评论)
3.4
3.4
用户头像
I have a very good experience in MSSQL database with handling of large data with minimum loading time to retrieve. Lets have detail discussion about your requirement and then we can move ahead for a healthy relationship.
$250 USD 在3天之内
5.0 (1条评论)
2.9
2.9
用户头像
Hello, I have seen your requirements and understanded your project needs. Let's get on chat to discuss further, looking forward to hearing from you asap. Regards
$200 USD 在7天之内
4.5 (9条评论)
2.9
2.9
用户头像
Hello I am experienced web developer. I have 7 years pf experience in PHP/MySQL. I can create robust database for you. Please share details with me. I can finish in a week. I would love to hear back from you Thankyou Leonid
$200 USD 在7天之内
5.0 (3条评论)
2.3
2.3
用户头像
We Beieve there are three responses to a piece of work – YES, NO, and BEYOUTIFOOL. Please go through our PORTFOLIO for our previous BEYOUTIFOOL WORK.
$30 USD 在3天之内
5.0 (4条评论)
1.3
1.3
用户头像
Hi, I am experienced Ms Access Developer I can solve your issue I can optimize your data also, i am willing to help you. Thanks
$111 USD 在7天之内
5.0 (1条评论)
1.1
1.1
用户头像
Dear sir , I have been Database administration before and i am ready to export your data from any format to another , please let me know if you are interested
$83 USD 在3天之内
5.0 (1条评论)
0.9
0.9
用户头像
10 years of experience in Server installation and Maintenance 10 years of experience in Server installation and Maintenance 10 years of experience in Server installation and Maintenance
$555 USD 在3天之内
0.0 (0条评论)
0.0
0.0
用户头像
I possess vast experience in the areas concerned: design, coding, testing and documentation, analyzing and error correction on existing source code (automating where suitable) using the mentioned tools: .NET, Excel, VB.NET, Visual Basic, Visual Basic for Apps. I am an Excel expert as well as in the realms of .NET and C++.
$155 USD 在3天之内
0.0 (0条评论)
0.0
0.0

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UNITED STATES的国旗
San Francisco, United States
5.0
18
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