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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    37 trabajados encontrados, precios en USD

    Hola a todos, Me encuentro en la búsqueda de un desarrollador web especializado en WordPress y con enfoque backend (o Full Stack, preferiblemente) para realizar las tareas especificadas más abajo. Sobre los sitios web: Sitio 1: recolecta información de propiedades para alquiler (nombre de propiedad, fecha de entrada, fecha de salida, amenidades, etc.). y recibe suscripciones de socios llevándolos por proceso de firma de contrato y pago de tarifa. Sitio 2: se encarga de vender el alquiler de las propiedades recibidas en el sitio 1 Tareas: - Crear en el Sitio 1 una tabla para recibir y mostrar automáticamente información de un formulario que se utiliza en el mismo. - Conectar / Sincronizar Sitio 1 con Sitio 2 para que, de la información...

    $192 (Avg Bid)
    $192 Oferta promedio
    20 ofertas

    You skill - Node, Laravel, PHP, Ruby on Rails, Python, and so on. Budget - $4000 per month

    $4000 (Avg Bid)
    $4000 Oferta promedio
    19 ofertas
    Solidity Developer 6 días left
    VERIFICADO

    Looking for a Developer who can write Solidity for smart Contract

    $156 (Avg Bid)
    $156 Oferta promedio
    19 ofertas
    Web Developer 6 días left
    VERIFICADO

    Build our our website with the tech needed to create new tech on our volunteer page to process volunteers online. Experience with WordPress, CSS, Javascript, And middleware tools, if possible.

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

    have a legacy .NET desktop app. separate instances of code and db for each customer. user credentials in each db. .NET 4.5. We are starting a new saas web app. We want to allow SSO with UI and authenticated apis for a unified experience between the legacy and saas features. I need sample code on both sides which enables this. This is pure POC. No need for anything from existing code. Assume a user table in each customer db, with userid, and pw. You can propose whatever you want on the saas side. We are using the single code/ multi db saas model; the saas has access to all existing customer db's. If interested, you should describe previous deep experience with federated authorization, tools such as oauth, heavy saas implementation experience, and previous experiences like this. Y...

    $288 (Avg Bid)
    $288 Oferta promedio
    8 ofertas

    Budget: $50 Deadline:January 30th, 2022 The purpose of this project would be to create a web application similar to 500x. It will include registering users, uploading pictures, comments, likes, ratings and views for every picture. Registered users can update their password, profile, and friend’s list. Implementation can be done following MVC model using Django/Python.

    $163 (Avg Bid)
    $163 Oferta promedio
    14 ofertas
    Cardano Swap Code 6 días left

    I want swap any asset on SundaeSwap with code. I dont want use SundaeSwap user interface. Programmer must have experience cardano programming and haskell & plutus coding. With this code I should be able to: -Connecting cardano mainnet -Login to my wallet with my passphrase or mnemonic in code -Swapping any asset(If asset have liquidity on sundaeswap dex) on Sundaeswap -Swapping asset the amount i want -Cancel the transaction if the asset swap result does not give me at least the amount I want (Slippage Function) Maybe I would 2-3 more function. The code I'm looking for is generally like this.

    $160 (Avg Bid)
    $160 Oferta promedio
    8 ofertas
    DJANGO/Python Experts needed asap 6 días left
    VERIFICADO

    We Needs to hire 2 DJANGO/Python Experts asap DJANGO server / Using GraphQL (Live projects) * YOU MUST BE ABLE TO CREATE FEATURES FOR DATING WEBS/APPS "BE ABLE TO CREATE CHAT APPLICATION FOR WEBSITE AND MOBILE APP" REQUIRED SKILLS: BACKEND Developer main Skills: DJANGO/PYTHON ( GraphQL) SALARY per each position: BACKEND Developer/full stack :$700-$1300 per month for the trial period RemarK: 1/after the trial period of 3 months, Skilled developer Salary $1800 usd per month 2/ after 9 months salary will become $ 3000 usd/per month with possibility to relocate to join our team in france WORK: YOU ARE ABLE TO WORK: 130-201 hours per month SALARY can increase after trial period basis on your performance. ======================= REMOTE POS...

    $1028 (Avg Bid)
    $1028 Oferta promedio
    39 ofertas

    Hello, I am looking for a Unity developer that allow to communicate two different Unity builds. Basically I want to show two different PC build communicating to each other sending and receiving 3d asset. To make this easiest as much as possible, I though to this solution: 2 builds 2 users Creation of a table/database of, for example, 10 assets (5 per user) that can be exchange among the two players. The builds give the possibility to login. Once the player login in the scene download the "backend database" where is written what he has in its catalogue/inventory. He can place in the scene only what he has in the catalogue. The player1 can send one of its assets to the player2. Once made that, the "backend database" is updated and now the player1 will not have any...

    $261 (Avg Bid)
    $261 Oferta promedio
    6 ofertas
    wordpress expert 5 días left
    VERIFICADO

    I am need for a technichal rule for the backend of the site , the site already create we have some issue's to need to set it up , i will share more details as per needed , our model is already train and we did few test's, but not working well , thanks

    $171 (Avg Bid)
    $171 Oferta promedio
    36 ofertas

    Ecommerce platform that allows for the purchase of backlinks for SEO purposes. Simple overview: User visits the website and can search attributes (similar to what we commonly see on all e-commerce websites like ). Attributes will be pulled from Ahrefs - Ahrefs Rank, Pages, Linked Domains, etc. Attributes will be “filterable” - meaning the user can select a range for metrics. Ex: Traffic 0-1000, 1001-2000, etc. While all website information can be added manually, I would like to see if this process can be automated. Meaning that a “seller of a link” can come to the website, register, then add their domain to our website. The website would then crawl the domain (using Ahrefs API) and pull out the data and add it to our website database. Once approved by the web...

    $33 / hr (Avg Bid)
    $33 / hr Oferta promedio
    14 ofertas

    Hi I'm using AdminLTE version v3.1.0 and I wrote a back-end application made of few pages, it's relatively simple it uses both light and dark theme and I'd like to have it more pretty (less boring and less 'stock') and to change a bit the color scheme please bid only if you have experience with AdminLTE css Thank you

    $174 (Avg Bid)
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    17 ofertas

    We are planning for AI website to provide medical service. Look for python and django contact us.

    $480 (Avg Bid)
    $480 Oferta promedio
    18 ofertas

    I need a full development of a SaaS project. Description Cloud-based Instagram Bot with the following features: - LogIn via Instagram - Targeting of a) followers from other Instagram accounts and b) hashtags. - Automatic liking, following and commenting on targets - Automatically mute accounts that the bot has interacted with Ask for price suggestions.

    $2830 (Avg Bid)
    $2830 Oferta promedio
    55 ofertas
    full time node.js dev 4 días left
    VERIFICADO

    we need a full-time freelancer for a complex node.js web application. this is a remote full-time position. as a result, if you have a full-time or part-time job somewhere, please do not submit a bid proposal. stack required: for the frontend, any framework for the backend, and mongodb for the db. if you're given the chance to talk, please avoid irrelevant questions in chat that said, you can find the detailed documentation below: IMPORTANT: 1. we don't hire people with fake accounts or accounts today; 2. we don't hire people from anything related or near the soviet; 3. we don't hire non-freelancers that sub-contract projects; 4. we don't hire fake or any sort of teams; 5. we don't hire folks with disputes, not even a single dispute; salary starts from $2...

    $209 (Avg Bid)
    $209 Oferta promedio
    7 ofertas
    full-time node.js dev 4 días left
    VERIFICADO

    we need a full-time freelancer for a complex node.js web application. this is a remote full-time position. as a result, if you have a full-time or part-time job somewhere, please do not submit a bid proposal. stack required: for the frontend, any framework for the backend, and mongodb for the db. if you're given the chance to talk, please avoid irrelevant questions in chat that said, you can find the detailed documentation below: IMPORTANT: 1. we don't hire people with fake accounts or accounts today; 2. we don't hire people from anything related or near the soviet; 3. we don't hire non-freelancers that sub-contract projects; 4. we don't hire fake or any sort of teams; 5. we don't hire folks with disputes, not even a single dispute; salary starts from $2...

    $201 (Avg Bid)
    $201 Oferta promedio
    12 ofertas

    We are looking for an experienced Wordpress developer to help us build a new website for our gym franchise business. Estimated 3 months full-time work (38 hours per week) You will be required to: • Work alongside our Digital Marketing Manager & website agency on scoping, defining, and managing developments on our new website. • Provide estimates and flag risks and issues that can affect the timely delivery of development projects. • Work across business units on the delivery of development projects. • Be actively involved in applying Agile and Lean thinking. • Implement, document, and maintain appropriate development methodologies. • Ensure appropriate levels of data security, data integrity and accuracy are maintained. • Assist with support analys...

    $14 / hr (Avg Bid)
    $14 / hr Oferta promedio
    104 ofertas
    Back-End Web Developer - IV -- 10 4 días left
    VERIFICADO

    We are looking for a back-end web developer to help with website integration, web services, and APIs. Candidates should have some or most of the following skills and experience: - Fluent in scripting languages (e.g., PHP, .Net, C#, Java, or others) - Experience with Go, Laravel, Django, Express, or other frameworks - Experience with SQL and MySQL database systems - Version control (Git) - Knowledge and experience with compliance and data security - Good problem-solving skills and analytical thinking - High attention to detail - Excellent communication - Ability to work well with a team This is for an INDIVIDUAL person, NOT a team. Send a link to your LinkedIn profile, with references and recommendations, send a portfolio, and lastly your resume. State your legal name as appears in your b...

    $7 / hr (Avg Bid)
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    12 ofertas

    The project is based on booking slots for tourism rooms in one specific location.

    $7 / hr (Avg Bid)
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    6 ofertas
    Web development 3 días left

    Need designer, UI developer and backend person

    $5432 (Avg Bid)
    $5432 Oferta promedio
    12 ofertas

    We are looking for a backend expert who can help build a portion of our chrome extension. it is a NFT related chrome extension. Thanks

    $602 (Avg Bid)
    $602 Oferta promedio
    19 ofertas

    We are looking for a backend expert who can help build a portion of our chrome extension. it is a NFT related chrome extension. Thanks

    $1219 (Avg Bid)
    $1219 Oferta promedio
    26 ofertas

    I want someone experienced in react and node js. Being able to host it on aws is a plus

    $393 (Avg Bid)
    $393 Oferta promedio
    15 ofertas

    We are looking for a backend expert who can help build a portion of our chrome extension. it is a NFT related chrome extension. Thanks

    $695 (Avg Bid)
    $695 Oferta promedio
    16 ofertas

    We are currently working On a Face swap video website ,which allow user's to replace one video face with other face , our model is already train and we did few test's , but certainly it we are worried something might discussion available thank you

    $171 (Avg Bid)
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    33 ofertas

    We are looking for a backend expert who can help build a portion of our chrome extension. Deadline: 3/4 weeks it is a NFT related chrome extension. Thanks

    $652 (Avg Bid)
    $652 Oferta promedio
    19 ofertas
    Pagina de vendas 1 día left
    VERIFICADO

    Preciso de uma pagina de vendas de alta conversão 1° Video com Delay 2° Pagina completa e padrão (estrutura padrão: video>depoimentos>perguntas frequentes) 3° Botão com redirecionamento para o suporte no whatsapp (modo aleatório ou alternado de uma lista de números) O MAIS IMPORTANTE É SER BRASILEIRO PARA PODER POSSIVELMENTE FECHAR OUTROS PROJETOS BEM MAIS COMPLEXOS

    $93 (Avg Bid)
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    11 ofertas
    app ios android 1 día left
    VERIFICADO

    An application for sending and receiving notifications and sending audio clips, and there is payment

    $1329 (Avg Bid)
    $1329 Oferta promedio
    85 ofertas

    Looking for an expert-level Full Stack Developer. NOTE: We are looking for someone who can work in our timezone in North America. South/North American candidates preferred. Requirements: - Solid experience in building responsive custom websites quickly and efficiently - Proven work experience as a full-stack web developer (please submit samples of your prior work when applying) - Knowledge of front-end technologies including CSS3, JavaScript, HTML5, and jQuery - Experience in WordPress - Understanding of database design and architecture - Experience with AWS - Knowledge of code versioning tools such as Git - Experience working with debugging tools such as Chrome Inspector and Firebug - Good understanding of website architecture and aesthetics - Ability to manage projects ...

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

    Looking for a back-end engineer for a 2-4-month project. You will work with a team of savvy crypto enthusiasts and experts. There are two parts to this project: - Assisting in creating the backend for the MVP (2-4 months); - Assisting in developing additional features post-MVP; We are building an NFT trading platform. We want you to help us retrieve data from the Ethereum blockchain, store it in a database and display it on our frontend (done by someone else). If you are interested in NFT's and the blockchain ecosystem, we want to hear from you! Option to extend if the 2-4-month period goes well. Required Experience: Contact with the blockchain and NFT ecosystem is mandatory; Experience with Javascript and Node.js backend development is mandatory; Experience with Rust is a huge plus...

    $15 / hr (Avg Bid)
    $15 / hr Oferta promedio
    7 ofertas
    Forum/Blog 1 día left
    VERIFICADO

    We currently have a Forum/Blog front end build from react. We need a SQL backend developer should be experienced with graphql and react

    $21 / hr (Avg Bid)
    Acuerdo de Confidencialidad
    $21 / hr Oferta promedio
    51 ofertas
    Blockchain: POC using Corda R3 23 horas left
    VERIFICADO

    I need a developer that know Corda R3 development. We need a proof of concept for a backend running Corda R3 + builder API interface to interact with Corda R3

    $1489 (Avg Bid)
    $1489 Oferta promedio
    11 ofertas

    projemiz tekstil sektörüne özel olarak tasarlanmış farklı modüllerden oluşan web tabanlı bir yazılım uygulamasıdır. MVP olarak şu an çin canlıdadır. uygulamamızda kullanılan teknolojileri şu şekildedir; Kullanılan Teknolojiler: - Frontend: VueJS, NuxtJS, Vuex State Management - Backend: Laravel 8, Eloquent ORM - Mobil: PWA (Progressive Web Apps) - Veritabanı: MySQL - Sunucu: Digital Ocean | Droplet - Eklentiler: JWT Authorization, i18n Çoklu Dil Yapısı - Üçüncü Parti Entegreler: İyzico POS Entegrasyonu Ön yüzde SPA (Single Page Application) temelleri esas alınarak geliştirme yapıldı. VueJS üzerine inşa edilmiş NuxtJS yapısı kullanıldı. NuxtJS’in tercih edilme sebebi; varsayılan olarak i18n dil paketi, Vuex, PW...

    $4442 (Avg Bid)
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    19 ofertas

    TASKS - Work on OneIdentity Manager developments SKILLS - Development / Customization Dell (now Quest/ One Identity) IDM solution - Familiar with Joiner, mover and leavers process and IAM technologies - Understanding of IDM architecture, data flows, Identity Provisioning workflows, SCIM/ API developments, DB queue issue handling - Reasonable working experience with directories (e.g. AD, AAD) and SAP provisioning PROJECT - Start asap and duration planned 3+ months - Full time remote during CET timezone - Assignment and payment on Freelancer

    $34 / hr (Avg Bid)
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    4 ofertas

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