Backend Development Jobs

Backend code is the part of a website or application that isn’t visible to the user. The code is a behind-the-scenes part of development, requiring a high level of competency regarding coding and the server that is being used. A backend developer works on the implementation and configuration of systems, and thus provides the building blogs for a website or program.

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    39 jobs found, pricing in USD
    Web app database 6 days left
    VERIFIED

    I have a desktop app which Fitch data from web server . I want to get the database of the app. data are just general sheets of references researches , does not contain any confidential or personal data .I want to get the database as i lost access to server .

    $14 / hr (Avg Bid)
    $14 / hr Avg Bid
    7 bids
    Firebase Expert Needed -- 4 6 days left
    VERIFIED

    Firebase Expert needed to secure my Realtime DataBase Rules by Strong Security Rules that anyone who has the address of my database Must request a special permission to read or to write (is in NODE)

    $30 (Avg Bid)
    $30 Avg Bid
    4 bids

    I want someone or a company to help me build my collective gambling game backed by ETH smart contracts. The game is about betting on one side of the equilibrium (think as left/right sides or A/B sides), and at the end of a specific period, the winning side (which has the most money collected) will collect all the money they have bid, plus the losing side's bids. House share starts from 1% a...

    $627 (Avg Bid)
    $627 Avg Bid
    12 bids
    RESTful API and Python3 6 days left
    VERIFIED

    I need someone who is strongly familiar with RESTful API and python3 to do a web server according to specifications

    $175 (Avg Bid)
    $175 Avg Bid
    11 bids

    We want to develop an application that enables the therapist and patient to make video calls. User and doctor use app, Admin use web panel. Please show me your developed any project. The project will be 2 milestone. In the middle of the project and at the end of the project I want Github code update every day. A different developer will test their code. i have 45days and my maximum budget is 3000$...

    $2506 (Avg Bid)
    $2506 Avg Bid
    47 bids

    Big book is a virtual schooling platform. Big-book functions as an ERP (enterprise resource planning) software, designed specially for schools, to help schools manage and consolidate its overall performance across various functions. Big book servers as a multi-task tool as it helps with school administration but also serves as a steady bridge of communication between stakeholders and the schoo...

    $12738 (Avg Bid)
    $12738 Avg Bid
    5 bids

    Hi, We want to build a brand new website that will hold a number of pages. We want to include numerous features which will allow users to register and log into their accounts, search for other users, have a social media chat communication (either by chat or internal email). Features we need: - Database build to store user accounts. - SEO. - Create a login/logout pages and user account storage....

    $264 (Avg Bid)
    $264 Avg Bid
    39 bids

    I need a Database that allows me to manage the logistics. - Admin - Sender ( insert ) - Recipient ( insert ) - Driver ( insert ) - Truck ( insert ) - Order Pallets ( insert ) I need EXPERT DEVELOPER AND FAST

    $148 (Avg Bid)
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    40 bids

    In need of live streaming for social media app also need other task complete for backend

    $2672 (Avg Bid)
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    46 bids

    I need you to develop some software for me. I would like this software to be developed for Linux using SQL.

    $317 (Avg Bid)
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    3 bids

    I need arabic website and mobile application for part time jobs to connect Companies looking for workers with workers and connect it with payment gate

    $2307 (Avg Bid)
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    52 bids
    Mobile & Web App 5 days left
    VERIFIED

    I need to create Mobile & Web App. The requirement is for creation of both Mobile & Web App. Mobile app to be developed using ionic framework only.

    $836 (Avg Bid)
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    13 bids

    1- [login to view URL] is a site that uses wordpress. The searchbar part just above the slider on the landing page needs to be connected with the Database. Inside the results: Person Budget Destination It should show correct results by month and date. 2- The home page design of my site should be like the page layout on the [login to view URL] site. Menus will be created in the same way. Pictures ...

    $537 (Avg Bid)
    $537 Avg Bid
    73 bids

    Looking for someone with experience with working with Selling Partner API, for example building the authentiation and pulling out data from it. in your applicaton please write shortly what is the difference between vendor central and seller central when it comes to sp-api authentication.

    $21 / hr (Avg Bid)
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    22 bids

    I need some changes to an existing websites paytm phone pay payment gateway file

    $53 (Avg Bid)
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    4 bids

    Error login app android - token server

    $41 (Avg Bid)
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    10 bids

    i need a desktop developer who code with javafx for achieving a pharmacy system desktop application and the database in firebase. optional i need to connect the desktop database (firebase) with an android mobile application database (firebase)

    $706 (Avg Bid)
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    3 bids
    Back-End Developer 4 days left
    VERIFIED

    I currently have a backend built in .NET and I need to transfer it to Node.Js

    $387 (Avg Bid)
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    40 bids
    Dating app 4 days left

    A dating app like tinder Develop an iOS and Android app with backend on AWS Support 10k DAU

    $4774 (Avg Bid)
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    43 bids
    Online 3D viewer 4 days left
    VERIFIED

    3Dnow by Studio Keret Outcome: A webpage which will allow the users to upload a 3D file format, input an email address and a description and send it. The receiver will be able to view the file with an online viewer (which includes zoom in/out and orbit) for 5 days and download it. Project already has a conceptual graphic design. Requirements: Upload page An upload module Form with sender name, se...

    $608 (Avg Bid)
    NDA
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    6 bids
    GraphQL custom script 4 days left
    VERIFIED

    I need to create a graphQL script that will scrape posts and store in database

    $19 / hr (Avg Bid)
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    21 bids

    I need a iOS developer to work on an existing project I need to change the backend, the code source is available

    $176 (Avg Bid)
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    11 bids

    I have a custom recurring payment gateway flow [login to view URL] I need to integrate to this workflow the affiliateWP system, so people can share its unique link and earn money based on the suscription flow in [login to view URL] This is the plugin [login to view URL], and it works for Woocommerce product, but I need to make it work for my recurring payment flow. I need this in less than 24 h...

    $494 (Avg Bid)
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    15 bids
    kids tracking system 3 days left
    VERIFIED

    I need someone to integrate my android & ios app with tracking system : Integrate with kids smart watches: To integrate our mobile app. With some types of kids smart watches to : a. Monitor the watch location. b. Receive alerts from the watch when: i. Kids push on the SOS button (on the watch itself) ii. Kids is out of the defined safety zone (geofencing) c. Call the watch using app. And recei...

    $3455 (Avg Bid)
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    21 bids

    I am a senior engineer ,stuck in my graduation project , I wanna help but not from scratch , I did pretty much somethings in the android app but need someone to complete my work in good way , its pharmacy system app to make orders

    $268 (Avg Bid)
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    8 bids

    بناء نظام لادارة مجمع طبى مكون من اكثر من 12 عيادة ومختبر طبى واشعه وصيدليه ومخازن واستقبال وحسابات وموارد بشريه

    $2616 (Avg Bid)
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    6 bids

    We want to design a single front end page as per our requirement. The UI/UX design graphics and wireframe will be given by us. Additionally, whatever the API is sending needs to be displayed on the front end. We are looking for a professional with relevant experience/understanding of Full Stack development and should be able to deliver the full Stack deliverables as per expected quality. What wi...

    $110 (Avg Bid)
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    10 bids

    Dashboard:

We need to make a dashbaord to upload Photos and Videos in it and the specifications are as follows:
 1. It should interact with AWS to store the data 2. Ability to upload data from the backend which will be filtered under different sub sections and categories. 3. There should be an option to create a new section/project under which the media data needs to be uplaoded. 4. It also shou...

    $318 (Avg Bid)
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    11 bids

    We are looking for a skillful backend developer who can complete 20+ things for troubleshooting perfectly on time and work to add more functionalities to our app for a final goal. A skillful backend developer who can work full-time will be preferred for ongoing tasks. It would be great if you are familiar with iOS and Android app development as well.

    $1262 (Avg Bid)
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    77 bids

    I am seeking a talented back end developer to join our quest for world domination! Long term full time commitment, minimum 2 months. ---------------------- I have existing project. First you have to install it on my local via remotely. ----------------------- You will be part of a small team of developers. Level of experience will be considered, but is not the most important, as long as you&rsquo...

    $20 / hr (Avg Bid)
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    7 bids

    We are looking for a Full Stack Developer Python developer to join our engineering team and help us develop and maintain the Challenger systems. Full Stack Developer responsibilities include writing and testing code, debugging programs and integrating applications with third-party web services. To be successful in this role, you should have experience using server-side logic and work well in a te...

    $527 (Avg Bid)
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    24 bids

    Need a Backend for the game Need to store following Data Player ID : This i will provide, so you have to give me a api for it.(Google and fb part : they send an token id that would be our player id) Username : This should be uniques and should be of 8 characters including numbers Profile Picture : Here we shave to choose option from 1to16. Coins : Our Game coins Balance Gems : Our Game gems Balan...

    $146 (Avg Bid)
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    4 bids

    Gameflow (Norwegian esports startup) is seeking a talented back end developer to join our quest for world domination! Long term full time commitment, minimum 10 months. You will be part of a small team of developers. Level of experience will be considered, but is not the most important, as long as you’re really good with the Kotlin/Spring Boot stack. And of course, you must be up for a chall...

    $15 / hr (Avg Bid)
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    1 bids

    we have already developed website and ios, android app need a person for more updation

    $2891 (Avg Bid)
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    24 bids

    1) Would like for users to be able to withdraw funds to verified bank account. 2) Users will submit withdrawal request via in App. 3) Users can see all completed withdrawals in transaction history. 4) Admin should be able to see withdrawal request in admin page. *would like for this to be completed in 5 days or less.*

    $570 (Avg Bid)
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    8 bids

    I need to build a marketing platform where every user will be able to post pivtures and videos that will be available not only to people who follow them but to everybody that use the platform. We will just give the users the chance to choose their favorites topics. It will appear like the for you page of tik tok and on the other side will be all the pics and videos that have been posted . I also w...

    $1399 (Avg Bid)
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    51 bids

    Всем привет! Нужны разработчики Frontend и Backend на JS React и Python. Только русскоговорящие!!! Заказчик будет проводить собеседование в Skype, поэтому только русскоговорящие исполнители. Что делаем? Первую версию платформы по поиску и анализу ниш. Работа проектная. После реализации первой версии будет рассматриваться долгосрочное сотрудничество. Первая версия платформы разбита на 4 под релиза....

    $4000 (Avg Bid)
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    5 bids
    Steam api and freeancer api 1 day left
    VERIFIED

    Dzień dobry, Chciałbym zlecić wykonanie market place, który będzie wykorzystywał dane z platformy Steam (aktualne ceny, skiny). W związku z czym zależy mi na osobie która napisze API do pobierania danych. Istnieją strony z których można legalnie pobierać aktualne dane które znajdują się na platformie Steam (przykład: [login to view URL]). Głó...

    $1332 (Avg Bid)
    Local
    $1332 Avg Bid
    18 bids

    Ho bisogno di un codice che prelevi i dati dell' app Wix Restaurant Reservations e li mostri sul sito wix, dal quale posso poi interagire con le altre funzionalità. Non riesco a prelevare l'access token dell'API Wix Restaurant. Mi riporta un codice di errore 400.

    $60 (Avg Bid)
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    2 bids

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