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 trabajados encontrados, precios en USD
    Document Express 6 días left
    VERIFICADO

    Es un gestor documental basado en microservicios capaz de Almacenar documentos disponibilizando una API al cliente como resultado final.

    $20 / hr (Avg Bid)
    $20 / hr Oferta promedio
    54 ofertas

    Migración de los frameworks de una aplicación web (frontend + backend) construida sobre PHP 7.2, Laravel 5.5 y Crudbooster, se requiere que pueda funcionar con PHP 8.0. Para ello, se deberán hacer los upgrades de framework que sean necesarios y también sustituir el framework de Crudbooster por la alternativa más sencilla posible que permita subir a PHP 8.0, ya qu...

    $4552 (Avg Bid)
    $4552 Oferta promedio
    20 ofertas

    ¡Hola! Buscamos una persona capaz de diseñar/ desarrollar una página web. Dicha persona deberá hacer una plataforma con ejercicios de futbol, destinada para entrenadores de futbol. Los ejemplos más claros, para que os baséis en lo que queremos, son: · [iniciar sesión para ver URL] · [iniciar sesión para ver URL] P.D El precio s...

    $1318 (Avg Bid)
    $1318 Oferta promedio
    20 ofertas
    All in Night -- 3 5 días left

    Desarrollar servicios rest api que interactúen con un app mobile lista en react native. El desarrollo está relacionado con un ecommerce para pedidos de productos. Apis a desarrollar: -Usuarios -Locales comerciales -Carta o menú del local -Pedidos de comida -Combos de comida -Actividades -Checkout del pedido -Recorridos de locales -Recomendaciones -Interacción con goo...

    $626 (Avg Bid)
    $626 Oferta promedio
    11 ofertas
    inmobiliaria 5 días left

    necesito una integracion entre usuarios y inmobiliarias donde inicien secion y se vean sus perfiles

    $240 / hr (Avg Bid)
    $240 / hr Oferta promedio
    5 ofertas

    ¡Hola! Buscamos una persona capaz de diseñar/ desarrollar una página web. Dicha persona deberá hacer una plataforma con ejercicios de futbol, destinada para entrenadores de futbol. Los ejemplos más claros, para que os baséis en lo que queremos, son: · [iniciar sesión para ver URL] · [iniciar sesión para ver URL] P.D El precio s...

    $790 (Avg Bid)
    $790 Oferta promedio
    15 ofertas

    customizing website theme to our business needs.

    $541 (Avg Bid)
    $541 Oferta promedio
    88 ofertas

    Hello ,, Kindly we have live application in google play, and we need to handle and manage the subscriptions for users. This our case : - one user has one device and has multiple accounts in google play but he subscribe in our application from one of these accounts,then he change the google play account to another then enter our application( the result ) he can’t use the features. And if he...

    $22 (Avg Bid)
    $22 Oferta promedio
    2 ofertas
    Laravel Website - Multi Dashboard 6 días left
    VERIFICADO

    ...READ CAREFULLY THEN BID. MAX BUDGET $30... I require some modifications and feature addition on my current website but before that I wanna ask that have you previously worked on multi dashboard site with a payment gateway in laravel? It will going to be a long-term project on which I will be requiring some additional features every 1-2 months so will you be available for that? More precisely, ...

    $41 (Avg Bid)
    $41 Oferta promedio
    2 ofertas

    Currently looking professional Python Developer for a full-time job. ( in company ) ( only individual independent developer) Long term cooperation 1)Are you available 40 hours a week (full time)? 2)Are you agree for an interview and to do a test task? 3)CV+

    $32 / hr (Avg Bid)
    $32 / hr Oferta promedio
    30 ofertas

    Hello, Freelancers. I received a message from face that implement facebook conversation api. I don 't know well about that but I am very interesting for that. What should I do for that? If you know about this, please contact me. Thanks

    $33 / hr (Avg Bid)
    $33 / hr Oferta promedio
    11 ofertas
    DevOps Enginner 5 días left
    VERIFICADO

    Need experienced DevOps engineer to troubleshoot our web based platform built using MERN stack. Our website crashing when processing browser refresh (F5) multiple request giving 502 Bad Gateway error. Experience with MinIO on Kubernetes would be helpful as we are interested to explore scalability options.

    $20 / hr (Avg Bid)
    $20 / hr Oferta promedio
    7 ofertas

    Build an Open authorization token gateway (Web3) to connect MetaMask wallets that own 577 unique ERC721 NFTs (Already Minted on Opensea, none sold – Can re-mint elsewhere if needed). Token holders will be able to gain access to an upload feature that connects to a database allowing users to upload images, text and URLs that display on specific locations (mapped by coordinates) on the front-e...

    $1275 (Avg Bid)
    $1275 Oferta promedio
    11 ofertas

    No companies, individuals only Your profile: Young, talented, efficient, you are looking for a challenge. We are a remote team working on interesting innovation projects and are passionate about our job. We enjoy what we do and we do not count our hours but we measure our quality with happy clients and successful projects. We want to be successful with you and grow together! We are looking ...

    $50 / hr (Avg Bid)
    Destacado
    $50 / hr Oferta promedio
    17 ofertas

    Hello We are [iniciar sesión para ver URL], a company that buys and sells electronics, gaming consoles and smart phones. We had a freelancer hired to build a new web site. He migrated us away from wordpress and made a custom PHP Laravel php APP. He made a front end and back end cms for our web site. He actually quit and never finished our web site. We still have some things to finish from...

    $2308 (Avg Bid)
    $2308 Oferta promedio
    128 ofertas
    crypto wallet app 5 días left

    i want wallet app like bitcoin and only expert should message me with demo and previous work

    $612 (Avg Bid)
    $612 Oferta promedio
    4 ofertas

    Wir sind ein junges Online-Marketing Start-Up Unternehmen. Bisher beraten und vermitteln wir mehr als 25 Influencer. Ein Webstore, welcher Cashback-Token als Währung verwendet. User registrieren sich mit ihrer E-Mail, geben gewisse Pflichtinformationen an (Name, Adresse, Geburtsdatum) und mögliche freiwillige Informationen. Die Daten werden über verschiedene API Schnittstellen abge...

    $5173 (Avg Bid)
    $5173 Oferta promedio
    32 ofertas

    1. STRIPE: A. save address while checkout on stripe: [iniciar sesión para ver URL] OR use prebuilt checkout [iniciar sesión para ver URL] B. save card details on stripe: You can set payment_intent_data.setup_future_usage to have Checkout automatically attach the payment method to the Customer you pass in for future reuse. 2. PayU Currency conversion for INR, GBP, AUD, EURO 3. Singup ...

    $94 (Avg Bid)
    $94 Oferta promedio
    1 ofertas

    An open source chat widget is needed to be installed on a wordpress website. The widget shall be connected to an iOS device for the operator to reply to the customers. Both Website, iOS app and Server code must be open source and deployable.

    $173 (Avg Bid)
    $173 Oferta promedio
    10 ofertas

    Looking for someone who can develop a product affiliate system in video course selling website where students have an option to become our affiliate and promote our courses with their affiliate link or affiliate ID. Key components required - Product Affiliate System, E-commerce and System to show video course On the dashboard, our affiliates should be able to see their earnings, their leads, cou...

    $87 (Avg Bid)
    $87 Oferta promedio
    2 ofertas

    implement the login handler and wesocket handler in Rust, no database, no UI. deploy in the cloud.

    $270 (Avg Bid)
    $270 Oferta promedio
    5 ofertas

    I’m looking for someone who can develop an API to API integration between Filemaker (CRM database) and [iniciar sesión para ver URL] (a marketing automation platform). Heres a link to the Kulea API info: [iniciar sesión para ver URL] If you look in the developer zone there is info about API’s You need to take appropriate account to ensure that there is not an infinit...

    $1252 (Avg Bid)
    $1252 Oferta promedio
    5 ofertas

    I am willing to make an audio chat app for where like minded people can interact privately.

    $114 (Avg Bid)
    $114 Oferta promedio
    6 ofertas
    dating app 4 días left

    i need an expert to bid my dating website for me

    $1022 (Avg Bid)
    $1022 Oferta promedio
    17 ofertas
    Placement website 3 días left

    This is a placement website for engineering students. Here each student should register and submit application for the placements. The admin will collect all the applications and filter out the students according to the requirement and submit to the recruiter. After the placement is done, admin will update the details of the placement.

    $186 (Avg Bid)
    $186 Oferta promedio
    13 ofertas

    Hi, We are looking for a competent freelancer with Mid Level to Senior expertise in Lavarel Develoer To help us finish our projects. Looking for a long-term working relationship. Regards

    $17 / hr (Avg Bid)
    $17 / hr Oferta promedio
    142 ofertas
    Parse Server Installation 3 días left
    VERIFICADO

    Hi, Am required in Digital ocean to install the Parse server with database postgresql and files to store on Digital ocean Spaces. it to be suitable for using load balancer. and this is using in android application. you need to check it is working or not in my application code.

    $173 (Avg Bid)
    $173 Oferta promedio
    5 ofertas

    Description - 1. Make a simple mongodb and nodejs based backend for a game. 2. Create an admin panel to update data in the database

    $111 (Avg Bid)
    $111 Oferta promedio
    11 ofertas

    I need someone with API experience To make Smart Lock Management Application with API To make an android and iphone app also to be used by the users See attached documents

    $612 (Avg Bid)
    $612 Oferta promedio
    24 ofertas

    TL;DR: I need a reliable and trustworthy developer to help me with wkhtmltopdf generator installation process. Dear freelancers, it's been a while since I have been using this platform. I hope I will find another reliable developer for a long term project. At the moment I am trying to bring back to life an old website which is using wkhtmltopdf generator version 0.12.1. During the website tr...

    $26 / hr (Avg Bid)
    $26 / hr Oferta promedio
    10 ofertas

    I have android and ios app , And i have requiremnet of removing backgroud image and need image cutout with transparent background. App Api's already built in php. Any backend language s preferrable for this job .Only need single api to remove background of image and send back me cutout with transparent background. Please start proposal with develop key. Thanks

    $20 (Avg Bid)
    $20 Oferta promedio
    6 ofertas

    I’m looking for a full-stack developer who can help me with finish a project. You can find in the project description in the attachment.

    $678 (Avg Bid)
    $678 Oferta promedio
    44 ofertas

    Hi, We are looking for a competent freelancer with Mid Level to Senior expertise in Lavarel Develoer To help us finish our projects. Looking for a long-term working relationship. Regards

    $12 / hr (Avg Bid)
    $12 / hr Oferta promedio
    72 ofertas

    Hi, We are looking for a competent freelancer with Mid Level to Senior expertise in Lavarel /PHP /MySQL. To help us finish our projects. Looking for a long-term working relationship. Regards

    $444 (Avg Bid)
    $444 Oferta promedio
    76 ofertas

    I want a website for betting which will include some games including some live games like cricket. The website should include login and money transaction features. It should be hackproof and should not lag. The person applying for the work should know how to buy the hosting from outside India. Some of the websites for references are here: [iniciar sesión para ver URL] , [iniciar sesi&oacut...

    $504 (Avg Bid)
    $504 Oferta promedio
    8 ofertas

    Hello, I'm looking for someone who can assist in the app i am currently using. I have a large set of artworks, used to make custom pictures of people. Looking for a website where the customer can make their own avatar from my artwork selection. Not just one figure but multiple people on each page as family portraits are the biggest seller. Currently using an app called teeinblue, which ...

    $161 (Avg Bid)
    $161 Oferta promedio
    5 ofertas

    Растущая компания — разработчик программных решений в enterprise сегменте. Мы работаем с предприятиями, чтобы решить сложные задачи по оптимизации процессов. В связи с ростом проектов, ищем хорошего программиста на backend. Обязанности: Проектирование и реализация REST API, web socket channels для SPA-приложений (Node.js). Участие в разработке архитектуры баз данных (Mongo DB), построение з...

    $2003 (Avg Bid)
    $2003 Oferta promedio
    23 ofertas

    Wir sind ein junges Unternehmen und im Bereich Immobilien / Dienstleistungen tätig. Ein neues Projekt soll die Entwicklung und das Betreiben einer Internetplattform sein, auf der Eigentümer ihre Wohnungsangebote (Wohnungen/Stellplätze/Garagen/etc.) potentiellen Interessenten präsentieren können. Vermieter / Eigentümer  - anlegen eines Anbieterprofils, späte...

    $18 / hr (Avg Bid)
    $18 / hr Oferta promedio
    57 ofertas
    Website/app 1 hora left
    VERIFICADO

    The web page and app should be made as portal for those who want to rent out unused space, and for those who are looking for storage in their neigbourhood. [iniciar sesión para ver URL] is a self-storage marketplace disruptor that’s creating a sustainable alternative to traditional self-storage. Peer-to-peer storage rental by helping local residents to rent out extra space in and aro...

    $4899 (Avg Bid)
    Acuerdo de Confidencialidad
    $4899 Oferta promedio
    45 ofertas

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