Fix the issue -- 3

I have one android application which is a live quiz app and this app was created with Kotlin.

I have a live quiz mobile android application and this was created with Kotlin. Also, the app has a backend. We were used the below technologies for the backend side :

1)Nest js



4)[login to view URL]




But sometimes the application throwing an internal server error so we need to fix that. The error looks regarding connect the socket or something like that. For this, I need someone to test the app with a large population(so you need to know how you can test the app) and find and fix the problem.

If you are able to fix that issue please contact me. Don't send me copy-paste proposal please.


Skills: Node.js, Mobile App Development, Typescript, Socket IO, MongoDB

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About the Employer:
( 4 reviews ) siverek, Turkey

Project ID: #30578554

13 freelancers are bidding on average $562 for this job

(249 Reviews)
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***** 100% Job Completion Rate on Freelancer ***** Greetings!! Hope you are doing well, As per the mentioned skills, I have a strong knowledge & experience with all these skills (Node.js, Docker, MongoDB, TypeScript, More

$750 USD in 7 days
(32 Reviews)

Dear Hiring Manager, I hope you are doing well ! I have carefully gone through your requirements for mobile app. I am a Certified expert mobile application developer with great experience. I have developed many simil More

$500 USD in 20 days
(44 Reviews)

Hello sir Kotlin 1)Nest js 2)Typescript 3)Redis 4)[login to view URL] 5)Node.js 6)Mongodb 7)Docker Expert here, i have read your description about i am ready to start working with you for this project, Please feel free to con More

$250 USD in 1 day
(13 Reviews)

Hi There, Greetings! Can you please share the URL of your app so i can check. What error you are facing? "I represent an experienced and advanced skill set of Android and IOS app development. I am also very skillfu More

$500 USD in 7 days
(3 Reviews)

Hi, Let see this issue I've already submitted bid on your previous issue. And I can test on at least 50 devices as I'm working with a big team around me.

$500 USD in 7 days
(5 Reviews)

Hello, Nice to meet you I have read your job description and i knew i can fix the issues without any problem. I can't define but I think that has the issues in api communication or bad request section. Anyway, I need t More

$500 USD in 3 days
(1 Review)

Hello, Good Day. High-quality work and fast Speed could bring excellent results and business success, this is our working style. We have gone through your requirements and we are confident about being part of the job. More

$600 USD in 7 days
(0 Reviews)

MASTERS SOFTWARE ARCHITECTURE EXPERT IN THE NAMED SKILLS HELLO, I have read the instructions keenly and understood your specifications for the task. I have over 7 years’ experience in this field and have adverse exp More

$500 USD in 7 days
(0 Reviews)

Hi, I have gone through your proposal and highly interested in your [login to view URL] have more than 8+ years of experience in design & development. And as a policy we will provide 3 month maintenance "free of cost" for the p More

$500 USD in 7 days
(0 Reviews)

Hello sir, Hope you are okay. We have read out the job description on Upwork of yours and all the requirements that you have asked for the job, have been occupied by me. We have a profound knowledge in programming an More

$750 USD in 35 days
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