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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.

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

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İşveren Hakkında:
( 1 değerlendirme ) Long Island City, United States

Proje NO: #22187492

Bu iş için 30 freelancer ortalamada $228 teklif veriyor

hardcode4u

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 Daha Fazla

$600 USD in 10 gün içinde
(35 Değerlendirme)
6.8
adeelpirzada

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 Daha Fazla

$210 USD in 7 gün içinde
(19 Değerlendirme)
6.3
navneetsoni

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: Daha Fazla

$201 USD in 5 gün içinde
(31 Değerlendirme)
6.0
bindmission

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 gün içinde
(170 Değerlendirme)
6.3
freelancerdanie9

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 Daha Fazla

$200 USD in 7 gün içinde
(16 Değerlendirme)
6.1
Codeitsmarts

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 Daha Fazla

$200 USD in 3 gün içinde
(31 Değerlendirme)
5.4
vladzolotukhin

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 Daha Fazla

$200 USD in 7 gün içinde
(33 Değerlendirme)
5.7
rishuwork17

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 Daha Fazla

1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% USD
(67 Değerlendirme)
5.1
jamesmartin81

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 Daha Fazla

$120 USD in 2 gün içinde
(42 Değerlendirme)
4.8
atish90

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 gün içinde
(12 Değerlendirme)
4.8
seniorcoder024

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 Daha Fazla

$200 USD in 7 gün içinde
(9 Değerlendirme)
4.6
srajbr

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 gün içinde
(22 Değerlendirme)
4.8
r3dtime

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 gün içinde
(11 Değerlendirme)
4.3
daistar125

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 Daha Fazla

$200 USD in 7 gün içinde
(7 Değerlendirme)
4.3
android2014213

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, Daha Fazla

$200 USD in 7 gün içinde
(16 Değerlendirme)
4.4
kostyakislicin

Hi. I've checked your requirements and I think I am the perfect match for this task. As an experienced server tech, I'm skillful with Linux server administration, domain/ssl setup, email system, WHM/Webmin setup and mo Daha Fazla

1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% USD
(2 Değerlendirme)
3.7
romancoder204

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 Daha Fazla

$300 USD in 2 gün içinde
(7 Değerlendirme)
3.6
electrobeam

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 gün içinde
(5 Değerlendirme)
3.1
harshitagraphics

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 Daha Fazla

$250 USD in 5 gün içinde
(2 Değerlendirme)
3.2
wangqiheping

Hi, Dear Client. I understood all your requirements and have been in this situation in my development life. If you contact me, I will help you with my rich experience in db query optimization with node.js, aws ec2 inst Daha Fazla

$359 USD in 7 gün içinde
(2 Değerlendirme)
2.7