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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    22 trabajados encontrados, precios en USD

    Terminando un desarrollo en REACT, MONGO, NODE.Js y AWS. Estamos enbusca de desarrolladores front y back para comienzo de trabajo inmediato.

    $459 (Avg Bid)
    $459 Oferta Promedio
    27 ofertas
    Fix a little bug 4 días left
    VERIFICADO

    Luego de loguearse, a veces pasa que después de unos minutos la cuenta se muestra en 0. Mas precisamente esto pasa cada vez que se pone la aplicacion en segundo plano .y se vuelve a abrir. Pasos para reproducir 1) Loguearse con usuario y contraseña (26518778 / anabella78) 2) Dejar la aplicación ahí o ponerla en segundo plano 3) Volver a ingresar luego de 15 minutos (ap...

    $43 (Avg Bid)
    $43 Oferta Promedio
    4 ofertas
    APP similar a glovo 3 días left
    VERIFICADO

    Descripción: Estamos en busqueda de talentos para poder formar un equipo de trabajo, tenemos muchos proyectos a desarrollar. Se busca freelancer para trabajo full time 40 horas semanales. • Habilidades necesarias React Native o Flutter Desarrollo de API en nodejs Docker • Desarrollo : App nativa para android y para iOS con tecnologías escalables y diseño res...

    $908 (Avg Bid)
    $908 Oferta Promedio
    26 ofertas
    YewPlant App 6 días left

    Greetings, My business is launching a social app that provides users the fastest, easiest, and stress-free way to make plans with friends. We have a complete wireframe built out and are looking for skilled and experienced developers to build the app out. I look forward to hearing your responses and founding a strong relationship. Reddit would be an example - however with significantly less fun...

    $4063 (Avg Bid)
    $4063 Oferta Promedio
    82 ofertas

    We are looking for someone with PROOVEN experience in the Online Advertising industry. - the project is to develop and adserver / adtracking solution from start to finish. ONLY ACCEPT FREELANCERS WHO ARE CURRENTLY WORKING IN THE INDUSTRY - EXPERIENCE IS NECESSARY - PROJECT MANAGEMENT - ARCHITECTURE & SECURITY - MOBILE WEB + APP

    $3883 (Avg Bid)
    $3883 Oferta Promedio
    28 ofertas

    I'm looking for an iOS developer to create a state of the art application. Candidates must be a good iOS developer and familiar with Apple HIG.

    $20 / hr (Avg Bid)
    $20 / hr Oferta Promedio
    57 ofertas

    i want a back-end developer to develop the back-end to site like OLX but for property only

    $275 (Avg Bid)
    $275 Oferta Promedio
    54 ofertas

    Finishing a REACT, MONGO, NODE.Js y AWS. In search of skilled devs with experience with sports API´s for fast data. SportRadar Preferably.

    $223 (Avg Bid)
    $223 Oferta Promedio
    10 ofertas

    I’m looking for you to build a wrapper class to Binance’s trading API that can be generalized to other Exchange APIs in the future. This “Broker” object should be able to handle (i) back-end accounting/auditing commands, (ii) order executions, (iii) account update queries, and (iv) data-handling across multiple accounts as detailed below. The logic of the code should priori...

    $210 (Avg Bid)
    $210 Oferta Promedio
    13 ofertas

    Hello, I am in need of someone to create a terraform for my Google Cloud Function Node.js app which can specify the minimum and maximum ghz per second to be used. I am also looking for run time specifications to be made so that I can control how often and for how long the app will be running in the background if possible.

    $24 (Avg Bid)
    $24 Oferta Promedio
    3 ofertas
    website design 5 días left
    VERIFICADO

    The project includes: 1) backend + DataBase 2) frontend from web and android / iphone using reference from codecanyon is recommended in order to shorten the development time It is very important to me that the design will be carefully inspected and will be safe (from hackers)

    $510 (Avg Bid)
    $510 Oferta Promedio
    46 ofertas
    backend nod.js 5 días left
    VERIFICADO

    i am in a need of a node.js developer " backend " with a senior skills for a temporary project that willl take at around 3 months .. so we need you to be full time with proven skills

    $1148 (Avg Bid)
    $1148 Oferta Promedio
    45 ofertas
    Web platform + hybrid apps 4 días left
    VERIFICADO

    Hi. I need a senior developer to make my project. I also need UI design and visual identity. The project will be almost a clone of this one sweetescape.com. Will be a web platform, android and ios. BUDGET $100 in max. I could pay more if the business go well. Thanks

    $138 (Avg Bid)
    $138 Oferta Promedio
    11 ofertas

    Read carefully, those use bot to bid will be reported to Freelancer. I need experience one, not a newbie. If you have previous sample, bid here. If you do not have experience, forget this project. A previous sample is a must I need a source of a blockchain wallet that has investment features and referral programs for the clients/users deposites. I will send you some sample to check List of f...

    $2247 (Avg Bid)
    $2247 Oferta Promedio
    25 ofertas

    PHP Custom Website (SQL/Linux) Requires 3 fixes/changes: 1) Backend code/reconfigure the 'sent from' email address element of a quick reply form which a customer completes on the site so that it is not obstructed by AOL's/Yahoo's authentication/DMARC policy, and we receive it without it being blocked. 2) On the same quick reply form, there is currently an 'upload one docum...

    $74 (Avg Bid)
    $74 Oferta Promedio
    29 ofertas
    Android developer 3 días left

    Aim: Create a photo sending/sharing android app web service at backend. - A sign-up page or login uaing google account - Camera photo capture - Share the captured photo to our server/storage on AWS or Firebase - Should store history of total images sent - For each photo share some random credit points shiuld be stored in server and visualise using app - Digital wallet integration for payment to u...

    $163 (Avg Bid)
    $163 Oferta Promedio
    9 ofertas
    React Native Full Stack Developer 3 días left
    VERIFICADO

    Hello! ****do not bid if you are chinese**** We need Full Stack developers with the following skills: ReactNative Write unit testing using Jest Github I have a project working but I need fix some bugs, I'll pay per hour for each task completed. Only bid in this project if you are a developer of user applications and background services with 3 or more years of experience. Please start the...

    $10 / hr (Avg Bid)
    $10 / hr Oferta Promedio
    34 ofertas

    We are making a B2B PWA application for fruit and vegetable vendors. The frontend is in React JS and the backend is Django with PostgreSQL. You can find more about us at www.aalgro.com. We are looking for an individual who is proficient in any of the following: The candidate must be proficient in any of the following: 1. Javascript / React JS 2. Python / Django and REST framework The candidate ...

    $147 (Avg Bid)
    $147 Oferta Promedio
    8 ofertas
    API for medicines and side effects 2 días left
    VERIFICADO

    Hello, I need someone to provide me assistance to find an API that delivers me the names and side effects of different medicines

    $32 (Avg Bid)
    $32 Oferta Promedio
    2 ofertas
    near to Airbnb 2 días left

    I want a Website and mobile application , similar to Airbnb with some edit .

    $990 (Avg Bid)
    $990 Oferta Promedio
    48 ofertas

    I need an iPhone app. I already have a design for it, I just need it to be built. It’s a wedding planning app that needs the following functionalities built Planning tools such as to-do list, budgeter, calender integration, guestlist management, venue floorplan design, seating arrangement design, registry Vendor Marketplace to communicate and pay vendors Guests- allows guests to attend an...

    $2528 (Avg Bid)
    $2528 Oferta Promedio
    114 ofertas

    We are looking to hire someone who is familiar with Rails to add the features to our website. If you are already familiar with Rails then update me please. This will be long term relationship. Looking forward to hearing from you. Thanks

    $22 / hr (Avg Bid)
    $22 / hr Oferta Promedio
    53 ofertas

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