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GraphQL + OrientDB graph expert in heavy load situations

Please read the job description carefully, particularly the Google Doc with the link. All the information is there

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Our main transactional data will be on CockroachDB, and we will save the compressed JSON on OrientDB (option is Couchbase) NoSQL. NoSQL DB will have almost as many writes as the number of reads. Experience with high load NoSQL DB situations will be good.

We were in development mode and everything was done on PostgreSQL. We want to replace PostgreSQL with GraphQL + CockroachDB + OrientDB (option Couchbase) + SQLite (on mobile device).

Your job is to design db structure for the NoSQL and relations DB (RDBMS), 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, a graph+document+key-value NoSQL, for machine learning on our data type - mostly numerical (numbers) but unstructured and not relational.

2. LDAP. We prefer 389 Directory Server [login to view URL]

3. Use Redis PubSub feature as a message broker 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.

Квалификация: Amazon Web Services, node.js, NoSQL Couch & Mongo, SQL

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О работодателе:
( 2 отзыв(-а, -ов) ) Las Vegas, United States

ID проекта: #22491769

6 фрилансеров(-а) в среднем готовы выполнить эту работу за $623

schoudhary1553

Hello Sir, I am expert who understands the value of time. I pride myself in my attention to detail. I am very hard working and aim to deliver in less time than quoted. I want to make you, my employer happy without cha Больше

$600 USD за 7 дней(-я)
(11 отзывов(-а))
5.4
dreammate0621

Dear Client! I am very happy to see your project detail. I think it is just my project. :) As you can see in my profile, (my review: https://www.freelancer.com/u/dreammate0621?w=f) I have much experience with 8+years. Больше

$500 USD за 7 дней(-я)
(1 отзыв)
3.1
pinesucceed01

Hi there, I am Node.JS developer with the following experience: 8 years of experience in Web Development, Designing User Interface Applications, Testing and documentation of professional web based applications using Больше

$500 USD за 7 дней(-я)
(2 отзывов(-а))
3.2
tommyberggren4

Nice to meet you I am an Amazon Cloud Architect for the web infrastructure serving 90 million page impressions and 12 TB Internet traffic per month. The AWS services I use are EC2, ELB, MySQL RDS, VPC, CloudFront, Elas Больше

$637 USD за 9 дней(-я)
(0 отзывов(-а))
0.0
wpdevaliraza

Hi, We have understood your requirement. And, have done this previously with perfection. We have 7+ professional development experience. We guarantee you 100% for perfection and on time. Looking forward to discuss you Больше

$500 USD за 7 дней(-я)
(0 отзывов(-а))
0.0
Mohamed19890213

=========================================================================== Dear sir. I have just read your description and think that it is the project for me. I am full stack web design/developer with rich experienc Больше

$1000 USD за 15 дней(-я)
(0 отзывов(-а))
0.0