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GraphQL & OrientDB (graph NoSQL DB) expert in high production deployment

$750-1500 USD

Cancelled
Posted over 4 years ago

$750-1500 USD

Paid on delivery
Please read the job description carefully, particularly the Google Doc with the link. All the information is there [login to view URL] 1. Our main transactional data will be on Yugabyte relations DB, and we will save the compressed JSON on OrientDB NoSQL (graph + key-value + document data type). 2. NoSQL DB will have almost as many writes as the number of reads. Experience with high load NoSQL DB situations will be good. 3. ReOpenLDAP - an LDAP for very high speed read many, very low write situations 4. Write a small number of scripts for AWS Quantum which uses PritiQL - almost 100% SQL-compatible. Will need SQL generated by any DB management tool e.g. DBeaver to be tweaked to run correctly. We were in development mode and everything was done on PostgreSQL. We want to replace PostgreSQL with GraphQL + Yugabyte DB + OrientDB + ReOpenLDAP + SQLite (on mobile device). Your job is to design db structure for the NoSQL, relations DB (RDBMS) and LDAP, and make them work through GraphQL. Optimize queries, schemas, tables, stored procedures if required to reduce load and speed performance. Our backend code is in Node.js and frontend in Flutter Dart. Bonus point if you have expertise AND previous production expertise with: 1. OrientDB for machine learning on our data type - mostly numerical (numbers) but unstructured and not relational. 2. Use iPaaS and ESB integration software as message brokers for loosely coupled integration. Our senior developer will give the schema and tables for each db as well as we understand them. You are the DB expert and you will make the final decision The frontend developer will do the mobile part with the help of the senior developer. The database developer will make sure everything works properly through GraphQL client We expect the work should be completed in 2 weeks. No syncing between distributed db.
Project ID: 22770984

About the project

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Remote project
Active 4 yrs ago

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20 freelancers are bidding on average $1,047 USD for this job
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Hello there Full Stack Expert development team is ready to serve you. We are working on hourly rate 40usd / hour. Can you send me a message? Then we can discuss the details Thanks!
$1,125 USD in 5 days
5.0 (12 reviews)
5.8
5.8
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Hello Respect sir I saw your description, I can't stand the excitement of seeing the project you post on... I bet one's shirt on I have the ability to complete your project perfetly because I have experience with your projet. Let me explain my basic experience at the first. I have been working as the development team leader for 21 years and my basic skills are Object C, C++, C#, Java, Javascript, Pythone, Node.Js. So I have about 1000 web Crawling(Scraping) experiences.(SportsBetting site(Bet365, Betfair, Maxbet, 1Xbet, Aleabet, Stanleybet, Glodbet, Wiliamhill, Eurobet, ---Betburger, Blogbet, Oddsportsal) , CasinoBetting site, Shopping site, Booking site, Dateing site , Nomal site..) The most amazing thing for me is to have a complete analysis and understanding of the betting parts and to have control of Betfair, Bet365, Pinnacle, Bwin, Stanleybet, Planetwin365, Eruobet. etc. Also,the automatic sports '*'Betting Bot'*' for these things (ValueBet, Surebet) I built and more than 1700 clients is contacting me, they are earning a lot of money for use my bots. Also the income of the bot is Awesome!! Please Contact me , I will share when you contact with me , you can check it yourself. In these latter day I have some free times, So I have time to work with you preferentially. Verve !! This is a source of creation Thank you for wishing you happy!
$1,125 USD in 7 days
4.9 (14 reviews)
4.9
4.9
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FREELANCER RECOMMENDED ------------------------------------------------------ Can help... I am a Fullstack Expert in development of web, desktop and mobile apps... Lets Start! Please start a Discussion with me and we can get started from there... Please check the past projects I have handled and check my reviews for what employers have to say about my work... Can start right now...
$1,125 USD in 7 days
4.8 (3 reviews)
4.5
4.5
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Hello ! Hope you are doing well! can you please come in chat box to discuss the project i am available and ready to start the project I am good at : - Custom PHP, Laravel, CI, NodeJs - HTML5 + CSS3 Styling, Bootstrap - PSD to HTML, Responsive web development - WordPress, Shopify, Magento, Opencart, - ReactJS, js & jQuery. - Joomla web development Please review our portfolio and our profile I am happy to answer any question regarding my Skills and experience Looking forward for your positive response Thanks & Regards Roop
$1,370 USD in 3 days
5.0 (9 reviews)
3.6
3.6
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Hi I've carefully checked your requirements and really interested in this job. I'm full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I'm offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I'm well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Amazon Web Services, node.js, NoSQL Couch & Mongo, SQL. For more information about me, please refer to my portfolios. I'm ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Thanks
$1,250 USD in 8 days
5.0 (1 review)
3.2
3.2
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Hello, my client! As per your requirement, I would like to tell you that I have a very strong experience of more than 6 years in web and mobile development. In my previous working years, I have finished many successful projects with 100% customer satisfaction. I will perform your project with high quality on time as you want. I am free now, I can start to work on your project for now. I am very happy to have an opportunity to work for you. Best regards
$1,125 USD in 7 days
5.0 (2 reviews)
2.9
2.9
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Hi,dear. I've just checked all requirements of your project 'GraphQL & OrientDB (graph NoSQL DB) expert in high production deployment'. I'm a senior software developer and I'm able to fulfill your project requirements ,you may be interested in me. Please come in contact so that we can discuss more for further details... Skills: Amazon Web Services, node.js, NoSQL Couch & Mongo, SQL
$1,250 USD in 5 days
3.2 (1 review)
3.8
3.8
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I am writing this proposal in order to work for you in Software and Web Development. We are highly trained professional developers seeking to freelance and earn online. Having a flair in programming and development I have been excellent with JAVA,C#,C/C++ and PHP programming language along with MySQL with XAMPP Server. I also build application for Cloud computing and High performance computing as I also have knowledge regarding Hadoop, MPI, OpenMP (distributed frameworks) and also have build applications in CUDA C++ and OpenCL. I also have experience with the most famous framework ASP.NET. My most expertise are in JAVA where I have built countless projects for semester projects and Final year project. You may find many developers in this field however we assure that you will not be able to find a team like us. We not only ensure the code is quality wise but we also assure that the code we write are optimised and we ensure that the program performs right operation under right environment i.e. we create programs that are defect free. You may also find freelancers that cost low but they do not put their 100% which then shows in the software and leads to an unhappy customer. We ensure reasonable price are put as tag on the job and we ensure in order to give the write product. We highly appreciate your time, if you are interested kindly let me know
$750 USD in 7 days
5.0 (4 reviews)
2.4
2.4
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Hi, I specialize in website design and development and am excited for this opportunity to work with you in accomplishing your goals.. I am Good at Amazon Web Services, node.js, NoSQL Couch & Mongo, SQL.. Please Send me a message so that we can discuss more about this project Regards, Barry
$1,250 USD in 78 days
5.0 (1 review)
0.2
0.2
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I'll complete your project satisfactorily. You will get quality work at an affordable price. I can start work right away. I will be looking forward to hearing from you. Thank you.
$750 USD in 7 days
0.0 (0 reviews)
0.0
0.0
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Pleased to meet you. I just found the job quite interesting and is an ideal match for my skills. I am an experienced developer with full-stack knowledge and career on these technologies. I am sure I can do this perfectly and you will get the best result within your timeline. I hope to see you in chat, to discuss in detail. Please feel free to contact me. Thanks for your attention. Best regards.
$1,125 USD in 7 days
0.0 (0 reviews)
0.0
0.0
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Hello I have a strong skill in the below frameworks and technology. - PHP(6 years) Zend Framework, Laravel, CodeIgniter, Yii, Symfony, Drupal, CakePHP, WordPress, WooCommerce, Ecommerse, other PHP frameworks know a few - JAVASCRIPT(6 years) and TypeScript Angular, Vue, React, ElectronJS, D3.JS, ThreeJS, backbone.js, DHTMLX other javascript frameworks know a few - Strong responsive design skill - Node(4 years) Express only - python(1 yeas) Django only - Databases MySQL(strong), Oracle, PostgreSQL, MongoDB(strong), Firebase - Special technicals(strong) Payment gateway, PWA, WebSocket, WebRTC, AWS, Google Map API, SMS Regards.
$1,125 USD in 7 days
0.0 (1 review)
0.0
0.0

About the client

Flag of UNITED STATES
Las Vegas, United States
4.9
3
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Member since Jul 1, 2014

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