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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    31 仕事が見つかりました。次の価格: USD

    We need to Develop AutoML for Arabic Language Text. Use Firebase ML to train and deploy models. Data will be collected from social networks.

    $520 (Avg Bid)
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    14 入札
    Agroptimization -- 2 6 日 left
    認証完了

    Optimization of on-farm activities and processes.

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    We are looking for an enthusiastic and talented Python/Django developer, who is keen to fit into a small, experienced and fast-paced team. Be quick to secure this new role. Our aim is to create cloud based Human Resource Management Software that handles complicated processes such as job planning, shift booking, fully automated pay roll, candidate testing & scoring, API integration and compliance with amazing simplicity and flexibility. Version 1 is 99% ready just needs bit of refactoring, some bugs fixed and last functionality completed. You are expected to be able to re-engineer some serious data structures. Our basic website can be found at (NB! this is not the actual application, just informative website) Freelancer or Hubstaff tracker is used to track time and productivity. ...

    $27 / hr (Avg Bid)
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    WP + Backend Developer 5 日 left
    認証完了

    Need a backend ninja to help with some on-demand issues for a new project. Examples: 1) Connecting our WP front end to an external API to display 90 product ratings inside the elements for a partner logo grid. 2) Assisting with creation and implementation of front end AJAX search filters for various elements - one thing that would really help is if you are familiar with the concept of implementing FacetWP to create AJAX style filters on the front end for posts. 3) Helping with random backend development issues as they arise. Context: our client's previous developers built their last site in 2010 with a crazy amount of hardcoding PHP which is completely not user friendly for the marketing team, etc to manage. We want to streamline this entire process and make it super user friendl...

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    We're looking for a qualified Backend developer to join our team. OrderSpark is an online store builder for the fashion and beauty industries that focuses on building an online store easily with everything needed right out of the box. Most of the job will be too refactor, fix bugs, make sure everything is optimized and working properly, we have all tasks in Notion and all designs in FIGMA. Ideally we'll be working together for three to six months and you'll be able to grow with the company. The main goal is system stability, we have a lot set up, but the first step is a code review. The account gateway and store creation mechanism needs to be reliable. The Symfony API's need to be converted to Laravel. There will be a test to fill the position - this is mand...

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    Hallo zusammen, wir suchen für ein langfristiges Projekt einen Pimcore Entwickler aus Deutschland, der unsere aktuelle Seite weiterentwickelt und uns technisch unterstützt. Was wir brauchen: - Design Anpassungen - Backend Entwicklung - Erstellen von neuen Seiten (Duplizierung von Bestandsseite) mit bestehenden Domains

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    Notification - Oncall Application 5 日 left
    認証完了

    Create a frontend and backend setup with an application that can also be used in a desktop version. The application either has scheduled notifications/alerts to a targeted segment of users or the admin can send a customized message etc to users. Needs to have the ability to create multiple user groups, one key feature is for the notification to bypass Do-Not-Disturb on devices through a permission prompt. Customizable notification sound that gets sent. Possibility of integrating some kind of phone call system (berobox, etc) with a sound file that starts playing once the end user answers. Needs to be for both android and ios and desktop.

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    108 入札
    Casino backend new 5 日 left
    認証完了

    I only pay at the end no money to start .. i need a simple backent for my casino if you have yours and is simple i can use it , no problem .... spanish preferred ?..

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    finishing react.js web app 9 日 left
    認証完了

    Completion of 2 sections from front page including sign-up process and addition of users to database, correcting issues with 2nd page and adding automatic printing function, introducing new 3rd page.

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    Hi! I am doing my Bachelor's Thesis in field of computer science. My topic is about freelancer developers. As part of my thesis I want to do interviews with freelances to get the real-live overview of how they work and what problems they encounter. Interview will take around 30-60 minutes and I am ready to pay you by your hourly rate. Looking forward to your responses! Best regards, Lazar Grbovic

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    Build simple web application 4 日 left
    認証完了

    I am out of time, so I'm looking for someone to help me with a project. It consists of a simple frontend where you are asked to enter a profile from LinkedIn. It should then render the profile as in a chronological timeline (similar to StackOverflow CV timeline). I will ignore copy pasted offers, so feel free to spend some minutes thinking about the project and how you would approach it. That is what will be considered as a valid offer.

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    We are looking for an experienced individual developer having niche experience in Laravel Framework to build new modules, API’s and fix existing modules on a long term basis with regular job assigned to the person. This is a paid test task project with 2-3 modules updates, which will help us out to evaluate the best candidate for our long term professional relationship, the test task will have a hard deadline of 1-2 days for the delivery Once selected, It would be expected by the freelancer to communicate with the resources provided by us for any requirements related to backend module changes/APIs development or making fixes. Further, -> The developer would be required to sign an NDA with us. -> Also regular project commits need to be made on github for code review The payme...

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    We are looking for an experienced individual developer having niche experience in Laravel Framework to build new modules, API’s and fix existing modules on a long term basis with regular job assigned to the person. This is a paid test task project with 2-3 modules updates, which will help us out to evaluate the best candidate for our long term professional relationship, the test task will have a hard deadline of 1-2 days for the delivery Once selected, It would be expected by the freelancer to communicate with the resources provided by us for any requirements related to backend module changes/APIs development or making fixes. Further, -> The developer would be required to sign an NDA with us. -> Also regular project commits need to be made on github for code review The payme...

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    11 入札

    We need a CakePHP developer to make some changes in the website as well as correct some frontend issues

    $205 (Avg Bid)
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    84 入札

    a database search engine site utilizing elastic search. examples: & you'll be paid a % of the sites income until the price is met. ($5000).

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    11 入札

    I will be setting up a team of developers working from Nairobi, to create a website platform that sells lottery tickets for international lotteries, similar to this one: redfoxlotto.com. To start with, I need some basic work done on a freelance basis - this is what this initial project has been created for. If you are also interested in a permanent role in the development of the rest of the project, please read the final part of the description: Tasks: Setting up the database for the project Creating the framework for the backend, including secure admin access, user management Some editing of the already existing WordPress website (on which the frontend sales functions will later be displayed) I have created a video that will give you an overview of the most important functiona...

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    API development for flutter app 3 日 left
    認証完了

    I am designing an app similar to tinder with flutter and need APIs to handle user authentication, profiles, messaging, connecting users, voice calls, subscription and integration to social media.

    $805 (Avg Bid)
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    Hello, my name is Manuel and I need a React JS programmer for my website (Digital Consulting). My requirements for this project are as follows: - Frontend - Backend - UX design available - UI design (images, fonts, colors available). - The project will be built as a subscription model - Registration functionality - Header, footer and structure - Career page - all work must be transferred to me as the owner - I need the website on the following applications: Desktop windows/iOS, Mobile application Android/iOS. - The website will have about 30 subpages - The website needs to be connected to the cloud so that I can download and upload documents on my own - Comparison page of a prototype - A fixed price will be defined before starting (no hourly rate)

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    We're a growing blockchain startup based in Portugal. We focus on developing tools and features for cryptocurrency traders. We offer our services to over 90 countries. We're looking for a Senior backend engineer for our Remote team. This is a full-time remote job. Salary is fixed for the first 3 months, Then there will be wage raise, bonuses and profit sharing after 3 months. If you've years of experience in backend technologies and microservices. And you know the following programming languages: Java, Javascript, Python. Should be able to speak in English.

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    we started frontend now and i need to start see all bid and see there works untill we finished then award freelancer , so the project is marketplace: 1-user web 2-web seller admin 3-web platform admin 4-mobile web 5-transfer database from old system to new 6-every things :src , doc , must be hundle and send by github , and we just work fixed price to be selected for work with us must send your real works with same projects or we can not select thanks

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    Automobile app 2 日 left

    example: example: create "android & ios & admin panel" 6 month and support 2 months

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    I have a subscription of third-party WhatsApp API and I want to connect it to google sheet. Functions I want : 1. Automatic Message sent. 2. Trigger Message on time 3. All types of Media are automatically sent on WhatsApp through google sheet. 4. Automatic Generate Report of seen/unseen message on a google sheet.

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    3 入札
    Trendyol Api 1 日 left

    In Trendyol Marketplace, Markod İletişim Grup Ltd. Sti. We are the shop owner whose name/brand is Ceremonist under the company. We receive a large number of inquiries regarding our sales and/or products. And we have to answer these questions within a certain time, without the concept of working hours. When that time is exceeded, the store score is negatively affected. Quick responses, on the other hand, are positively affected. For the reasons I have stated above; We want to ensure that some printed answers are given automatically according to who it comes from and at what time. Can you help us with this? If you can, please let us know how long it will work live and how much it costs. Question&Anwers integrations :

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    3 入札

    build a invoice app with a server for the app the app will work on (IOS and Android )

    $17 / hr (Avg Bid)
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    Build trading Api setup 1 日 left
    認証完了

    Project requirement is to enable one click order placement. Refer the api documentation below. 1. Quick Order placement 2. Gtt order placement 3. Websocket real-time data streaming 4. Gtt order status tracking and action if status "disabled" 5. Latency test to ensure execution is within 50ms 6. Deployment and testing.

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    NeoEden´s Realm 20 時間 left

    NeoEden´s Realms origins are inspired from a utopic fantasy world, brought to life with a modern twist involving tangible blockchain solutions, each NFT asset is carefully hand drawn and programed by our brilliant world wide team! Born from fantasy, brought to reality, Neo Edens Realm aims to be a standard for future communities by having impactful decisions driven by its members through NFT technology & DAO solutions, having the project a life of its own thanks to the members that compose and support it. Owners of each Neocard will be able to claim 5 lovely $Roses a day for a period of 5 years , bringing with it new era of “Rosenomics” to the Realm. These $ROSES will be used for various utilities, such as NFT breeding, onchain metadata changes or implemented DAO vot...

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    Senior PHP Laravel Developer 12 時間 left
    認証完了

    We are hiring top 10 senior PHP/Laravel developers for our short and long term projects. Candidate must have experience with PHP, Laravel, API development, Payment gateway integration, etc. If you are interested then type friendly at the top of the proposal and share the past projects Thanks

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    We're looking for fun, punchy story-like scripts to introduce our courses to students. We can't have just one though, we need writers in different fields of expertise, paid by the hour: - 3D Animation - Backend Development - Cyber Security

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    I need a website like https://copy.ai 10 時間 left
    認証完了

    We can discuss the Programming Language and the design. It must integrate to Must have the billing similar to and login interface. As its a mvp, ill need only 2 or 3 features working. After done, we'll run many vulnerability analysis on more details we can discuss on chat. thanks! good luck!

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    we are looking for a JHipster developer, who is able to work on Angular work too. You have to have tons of experiences in Java backend (at least 10y), Spring-boot at least 5y and good experiences with Angular (3y+) Please share us screenshots and sample work you have done in JHipster in your bid. Be informed you will be reviewed by developers with over 20y experiences! So be honest and upright to your skills

    $73 / hr (Avg Bid)
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    Trophy icon CommanDING Tech Challenge: Phase 1 24 日 left

    COMMAND DASHBOARD INTEGRATING NEXT-GEN TECHNOLOGY (CommanDING Tech) CHALLENGE: PHASE 1 For more information about the challenge, see the official rules at : Challenge Timeline: June 06, 2022 - Early March 2023 Total Prizes: $1,000,000 USD Phase 1 Start: June 06, 2022 Phase 1 Submission Deadline: July 31, 2022 at 5:00pm ET This challenge is run under the America COMPETES Act. —------------------------------------------------------------------------------------------------------------------ IMPORTANT LINKS 1. Visit the Challenge Repository that contains the challenge resources that will help guide your participation in this challenge: 2. Submit the Registration Form to be eligible to participate in the challenge: 3. On Thursday, June 16 at 10am PT/1pm ET Free...

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