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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    35 travaux trouvés au tarif de EUR

    I have a project on flask python and VueJs. 70% work is already done you have to work from where it left

    €351 (Avg Bid)
    €351 Offre moyenne
    9 offres

    I need to add a custome code chat to a site that has been custom built. This chat would only be accessible for registered users, so login register must be added too to the site. This chat would be for registered users and they would chat with the owners of the site.

    €503 (Avg Bid)
    €503 Offre moyenne
    111 offres

    We are looking for an individual Flask developer who can help with our backend enhancements in a long term. This is a kind of SMS messaging system using OpenAI and Flask (backend API). We use Github to manage the source code and built CI/CD with heroku. Strong knowledge in Python, Flask and Open AI experience is required. Requirements: - 3+ years of Flask experience - Open AI experience - own one or two iPhone devices (mandatory) - ability to be overlapped during the US time zone at least 3 hours a day - clear communication in English Please write "I'm a human" at the beginning of your proposal so I can see you have read the job description. If not, your proposal won't be considered. Thank you

    €21 / hr (Avg Bid)
    €21 / hr Offre moyenne
    17 offres

    We are looking for Arab developers with high experience and a lot of work for creating online stores -Front End Developer : *Optimizing the user experience. *Using HTML, JavaScript, CSS, and their libraries *Accuracy and professionalism in design programming *Developing and maintaining the user interface. *Implementing design on mobile websites. *Creating tools that improve site interaction regardless of the browser. *Following SEO best practices. *The ability to implement all ideas -Back End Developer (PHP LARAVEL) *Experience in Laravel development *Working knowledge of Livewire using Laravel *Experience in HTML, Bootstrap, JavaScript, JQuery, Git, GitHub *Knowledge of Bootstrap or other front-end frameworks *Experience in connecting with different payment gatewa...

    €3963 (Avg Bid)
    €3963 Offre moyenne
    74 offres
    Aplicación Web con Bubble.io 6 jours left
    VERIFIÉ

    Necesito los servicios de un desarrollador con experiencia en (excluyente) de habla hispana. Ya tengo hecho en frontend y requiero terminar el backend de aplicación web con bubble.io. Algunas características de la aplicación serán: - Control de usuarios configurados por empresa, ubicación y dispositivos. - Mostrar datos en tiempo real desde MongoDB(servidor externo), el dato es el nivel de un estanque. - Mostrar la data anterior en widgets que se desarrollarán, estos widgets usan JQUERY. - Cada usuario debe poder configurar alertas, si la data sale de un intervalo deseado, estas alertas deben mostrarse vía pop-up en la misma aplicación o al correo del usuario. - Opción de graficar los datos en día, semana y mes, con v...

    €763 (Avg Bid)
    €763 Offre moyenne
    11 offres

    We are a startup and working on our product for mental health. We are looking for a dedicated freelancer who can work from our office on short term and long term projects. We are based out of Sarjapur and looking for 2-3 years experience person who can dedicate few hours per day or 2 days per week.

    €1486 (Avg Bid)
    Local
    €1486 Offre moyenne
    18 offres

    I have an ID on backblaze - you need to connect backblaze to : check this article how to connect: and lastly please check the screenshot have to put the ids here - You need to do this work via anydesk, as i can't share the access...

    €14 (Avg Bid)
    €14 Offre moyenne
    3 offres

    Looking for a rest API specialist that can help my web development agency with various projects. Must be experienced and done many projects in the past. Deep understanding of API's.

    €432 / hr (Avg Bid)
    €432 / hr Offre moyenne
    129 offres

    We are looking for an individual Flask developer who can help with our backend enhancements in a long term. This is a kind of SMS messaging system using OpenAI and Flask (backend API). We use Github to manage the source code and built CI/CD with heroku. Strong knowledge in Python, Flask and Open AI experience is required. Requirements: - 3+ years of Flask experience - Open AI experience - own one or two iPhone devices (mandatory) - ability to be overlapped during the US time zone at least 3 hours a day - clear communication in English Please write "I'm a human" at the beginning of your proposal so I can see you have read the job description. If not, your proposal won't be considered. Thank you

    €21 / hr (Avg Bid)
    €21 / hr Offre moyenne
    36 offres

    is the website you can look to see exactly the design, animation, features and functionalities im looking for.

    €818 (Avg Bid)
    €818 Offre moyenne
    86 offres
    Revamp Website -- 4 5 jours left
    VERIFIÉ

    Need a website revamped Details will be given when contacted

    €103 (Avg Bid)
    €103 Offre moyenne
    57 offres

    I need an adult escort services website done. I want something that would be 70% like website done on WordPress or so. So that the admin can easily managr the page and content. Example Website features: People can create profiles: Escorts, Clients, Venue Owners. Subscriptions: Models and clients can move from free users to subscribed accounts which gives extra features but will have to pay like $10 per month. This will only be for 1 country but will have filter locations for the different parts of the country. Clients and escorts should be able to create profiles. They can then get their accounts verified. Verified accounts will show a small "tick" next to the profile name and picture. Just like on Twitter/Facebook. VIP clients/subscribers will have a small VIP logo sh...

    €313 (Avg Bid)
    €313 Offre moyenne
    38 offres

    Hello, I'm looking for an experienced Drupal specialist to add couple features to existing project. The project is complex with quite some complications.

    €179 (Avg Bid)
    €179 Offre moyenne
    51 offres

    We are developing a board game. The frontend is finished for the game and what we are looking for now in the backend is that the dice board is playable with clicks. In this video you can see the game itself but it is by discord bot server, the idea we have is to bring that logic to website playability. Please bid if you are who we are looking for.

    €618 (Avg Bid)
    €618 Offre moyenne
    65 offres

    I have a Flutter App template purchased from Codecanyon. And I need to create the backend for that template. This is the template:

    €245 (Avg Bid)
    €245 Offre moyenne
    73 offres

    Cloud Infrastructure Currently, we are pursuing a microservices architecture based on Google's Cloud Platform (GCP) consisting of roughly 6 - 7 services all exposed via a GraphQL mesh and IAM authentication. Having said that, we want you to bring your ideas and experience to the table too to help us make these decisions. Live Data Feeds The app relies on the consumption of multiple live data feeds from multiple different sources. (Some of these feeds will be within the minute refresh cycle while others might be daily). These feeds need to be collated, organized and then provided in an accessible structure via external interfaces. All of this needs to be done in a cost-effective way so as not to incur large costs for compute. Robust feed collection will be via REST API and XML...

    €28 / hr (Avg Bid)
    €28 / hr Offre moyenne
    21 offres
    Revamp Website 4 jours left
    VERIFIÉ

    Need a website revamped Details will be given when contacted

    €64 (Avg Bid)
    €64 Offre moyenne
    23 offres

    We are looking for a full-stack developer to build a website. You can find the details of this project at the link below, but in summary, the website is supposed to be a combination of a bookstore of online books+forum+buying textbooks for your course+blog. Using WordPress is preferred, but any common technologies for the backend and frontend are ok. If you think that you might be able to do this project, please let us know asap and we can provide more information about the details to make it clear for you. Please let us know which technologies you are planning to use. Since we have many HTML pages and we want to add them to the website and be able to edit through the website (or even only just some sections of them) later, let us know if it's possible through what you are going t...

    €3314 (Avg Bid)
    À la une
    €3314 Offre moyenne
    114 offres
    Build backend for small website 3 jours left
    VERIFIÉ

    I have a small store page that needs backend devoloped using PHP and SQL. 1. I need admin panel (Edit the items on store and display sale graphs). 2. I need registration page and log in page (User can view order history). 3. I need cart and cart button to function. For the pages you add use the product page as template.

    €217 (Avg Bid)
    €217 Offre moyenne
    124 offres

    Some basic projects of mern stack

    €12 (Avg Bid)
    €12 Offre moyenne
    7 offres
    Changes in Existing Ludo Game 3 jours left
    VERIFIÉ

    I have Existing Ludo game with 10 minutes timer and I need to add some function and changes in ui at mid range price game Game build in unity

    €138 (Avg Bid)
    €138 Offre moyenne
    16 offres

    We have a project already developed with a web admin panel for an App (Winzy) and APIs coded which when hit via a http call return response in JSON format. We are facing issues logging in on the web panel as well as enabling the APIs. So your job would be to access the existing code base and make the necessary changes to enable the web admin panel as well the APIs. Also you would have to work on adding new APIs if required. Experience in developing Push notification is added advantage. Any additional queries would be resolved via chat or a call.

    €103 (Avg Bid)
    €103 Offre moyenne
    18 offres

    We are looking for an individual Flask developer who can help with our backend enhancements in a long term. This is a kind of SMS messaging system using OpenAI and Flask (backend API). We use Github to manage the source code and built CI/CD with heroku. Strong knowledge in Python, Flask and Open AI experience is required. Requirements: - 3+ years of Flask experience - Open AI experience - own one or two iPhone devices (mandatory) - ability to be overlapped during the US time zone at least 3 hours a day - clear communication in English Please write "I'm a human" at the beginning of your proposal so I can see you have read the job description. If not, your proposal won't be considered. Thank you

    €21 / hr (Avg Bid)
    €21 / hr Offre moyenne
    43 offres

    we want to send an MQTT message from PHP laravel to HiveMQ broker using a third party library ( ) we already have PHP code ready we just need hiveMQ code integration and to PHP and making it communicate to the MQTT broker

    €5 / hr (Avg Bid)
    €5 / hr Offre moyenne
    5 offres
    €771 Offre moyenne
    12 offres

    We are looking for an individual Flask developer who can help with our backend enhancements in a long term. This is a kind of SMS messaging system using OpenAI and Flask (backend API). We use Github to manage the source code and built CI/CD with heroku. Strong knowledge in Python, Flask and Open AI experience is required. Requirements: - 3+ years of Flask experience - Open AI experience - own one or two iPhone devices (mandatory) - ability to be overlapped during the US time zone at least 3 hours a day - clear communication in English Thank you!

    €22 / hr (Avg Bid)
    €22 / hr Offre moyenne
    37 offres

    I need a web developer to develop an e-commerce website for me. The first prototype will involve basic features which we need asap.

    €333 (Avg Bid)
    €333 Offre moyenne
    62 offres

    Build a web app today finished front & backend with flutter! It is a crowdfunding one

    €188 (Avg Bid)
    €188 Offre moyenne
    26 offres

    Hello, I want to use Wordpress as the backend of my application in flutter For example use API Rest for configuration. The flutter template I want to configure is this:

    €198 (Avg Bid)
    €198 Offre moyenne
    51 offres

    We want to plan and optimize the schedule for our production tool. Therefore we are planning to use Optaplanner as an open source software and want a java developer with experience on this planning engine. The solution and software is only for the backend. The entity domain is not very complex but there are some difficult constraints to solve. So your job is to (re)define the current domain for optaplanner, configure optaplanner and implement first constraints for solution finding. (Unit tests would be nice, optaplanner got good methods to write tests). More details can be provided in private chat.

    €159 / hr (Avg Bid)
    €159 / hr Offre moyenne
    37 offres

    I got a project form a Company that provides delivery services to other local businesses and people. But this is my first project and I am still learning and the work is too much for me to handle alone. I want someone who can do the backend stuff and I'll deal with the front end. The company/startup is based in Chandigarh, India and it provides delivery services to the locals and other small businesses/shops such as grocey shops,medicine shops ,bakeries,restraunts or to people who want their stuff delivered. The company wants a website that can take the users order ( their name, item type, pickup location ,drop location) cash collections from drop point if any (in case of shops, bakeries). Calculate and show the total charge and then send the order to them through WhatsApp , and i...

    €197 (Avg Bid)
    €197 Offre moyenne
    16 offres
    Unity Game Developer 10 heures left
    VERIFIÉ

    We are looking for a Unity or Unity 3D Developer to lead our Gaming Application Project. As a Project Lead, you will be responsible for implementing game functionality translating design ideas, concepts, and requirements into a functional and engaging game. Experience:- Minimum 3 Years Location: Noida Immediate joining. #developer #unity3d #unitydeveloper #unity #unityjobs #unitygames #aspdotnet #mysql Sector 63, Noida

    €763 (Avg Bid)
    €763 Offre moyenne
    7 offres

    Project requires experience in protobuf, grpc, javascript, ssl, familiarity with wireshark, network analysis and other networking tools along with implementing them into the back end of websites. Share your experience and DM me for more details. Include the word pizza in your bid so I know its not a bot.

    €484 (Avg Bid)
    €484 Offre moyenne
    20 offres

    We decide to have an Android application for our company. Full stack developers should contact us work experience must.

    €732 (Avg Bid)
    €732 Offre moyenne
    15 offres

    I need someone have a backend to slot games if somebody have one let me know i need it and if have the casino html ready and i like i get it.... hablo espanol tambien

    €156 (Avg Bid)
    €156 Offre moyenne
    12 offres

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