Error on CMS and database query optimization via AWS, Node.js, and Linux EC2 instances

We are running a mobile quiz game on AWS. It has a couple of bugs that need to be ironed out. Specifically there's a CMS that is meant to load quiz data onto the app but it isn't populating on the app client itself. Secondly there is a very long login time that requires a fresh login every time the app is opened. This error is centralized around a couple of postgres queries.

These services are running on AWS linux EC2 instances, Postgres, and Node.js

We are unsure of how to optimize to solve these problems so we are posting on here to hopefully find someone who can solve it for us.

Skills: Amazon Web Services, node.js, Linux, MySQL, PostgreSQL

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About the Employer:
( 1 review ) Long Island City, United States

Project ID: #22187492

31 freelancers are bidding on average $224 for this job


Hello, Hope you are doing well. My name is Ishant and I am an expert PHP & JS developer having experience of 9 years. I can do any kind of development and customization in React.js, Node.js, & AWS. However, I need mo More

$600 USD in 10 days
(35 Reviews)

Hi, would you be able to check my proposal I am a Full Stack Lead Developer with a Decade of Experience with strong Expertise in Nodejs , ReactJs and Angular using Mysql or MongoDB. I have comprehensively develope More

$210 USD in 7 days
(19 Reviews)

Hi, I am 4 year's experience in the development field and recently, we have completed the client project. ([login to view URL]) I would also mention my working with 100% result. Please have a look at my recent work: More

$201 USD in 5 days
(31 Reviews)

Hello Hope you are doing well. I have 7 years of experience in Linux and AWS Server Management. I can handle this project.

$300 USD in 3 days
(167 Reviews)

Hi, Hope you are doing well. I have read your job description and it is really interesting to me. I am good at node, postgresql and amazon web service, in my history I have finished many web applications. Here goes my More

$200 USD in 7 days
(16 Reviews)

Hello. As an Angular, React, node.js, Python and Django expert, I am glad to place the bid on your project. As you can see in my profile, I am fully experienced and lots of skills in web development. I want to discuss More

$200 USD in 7 days
(32 Reviews)

Hello !I read through the job details extremely carefully and I am absolutely sure that I can do the project very well. I would love to work on your project and I'm confident that I can give the result and exceed your More

$200 USD in 3 days
(30 Reviews)

I can optmize server performance.I am AWS and google cloud certified server and Linux expert having  5 years of experience on migration of website . I have good hands on command line and Cpanel, DNS related queries, I More

$200 USD in 1 day
(64 Reviews)

AWS linux EC2 instances, Postgres, and Node.js I've been worked with above one for 5 years. I can solve your problem Message me and let's start working. Thanks.

$100 USD in 2 days
(7 Reviews)

Hello, Hope you are doing well. I can help you fixing your application bug. But for that we need to discuss more in details about your mobile app and backend service etc. Please feel free to chat.

$250 USD in 7 days
(12 Reviews)

Hi, I am ready to start right away. I have reviewed your job description as well and very confident to handle this project perfectly. I will do multiple revision in your project with 100% satisfaction work guaranteed More

$120 USD in 2 days
(41 Reviews)

Hello, I will have view the source code to see which part is cause those two errors. I would also recommend using reporting service like sentry or bugsnap to get alerts where things are going wrong. Regards, Samiran

$300 USD in 10 days
(20 Reviews)

Dear client. I have read your all descriptions carefully and I am sure that I can complete your project in time and at high quality. As a full-stack developer, I have recommended skills in Front-end and Back-end develo More

$200 USD in 7 days
(9 Reviews)

Hi! can you send link to quiz game please? what CMS you using (name/custom)? app api with CMS? need more info

$112 USD in 2 days
(11 Reviews)

I have review requirements and gathered features for your project. I have gained 5+years of experience and expertise working on Node.js(Express), Codeigniter, Laravel Framework. Also, I am good at C#(MVC, Razor). For F More

$200 USD in 7 days
(7 Reviews)

Dear Hiring Manager, I am Redhat Certified Engineer. I have 8 years of experience as a Linux System Administrator. I posses good knowledge of mail server like zimbra, sendmail, web server like Apache, shell scripting, More

$200 USD in 7 days
(16 Reviews)

Hello, This is Harry Jacob, a professional and experienced freelancer. I am into the Industry for the last nine years. I have gone through your project and seems doable to me, but it looks like the details are not com More

$250 USD in 5 days
(2 Reviews)

Hi, I am an AWS certified professional solutions architect and experienced full stack developer. I can help you to fix bugs with your CMS. And I'll try to optimise the performance as well Thank you

$300 USD in 7 days
(5 Reviews)

Hi, as an expert in full stack, I am very confident in this project. When I read this job project details very carefully, and feeling my skills are very good fit for this project. Please contact me, let's discuss deta More

$300 USD in 2 days
(5 Reviews)

Hello Sir/Mam, I am full time developer and did many work so please come on chat and provide me once opportunity to start work and sure about quality and perfect work. How we will increase speed- * We will check cu More

$150 USD in 7 days
(11 Reviews)