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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    33 trabajados encontrados, precios en EUR

    Necesito desarrollar un sitio web con pasarelas de pago de todo tipo

    €273 (Avg Bid)
    €273 Oferta promedio
    24 ofertas
    Build backend for small website 6 días left
    VERIFICADO

    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.

    €230 (Avg Bid)
    €230 Oferta promedio
    101 ofertas

    Some basic projects of mern stack

    €12 (Avg Bid)
    €12 Oferta promedio
    7 ofertas
    Changes in Existing Ludo Game 6 días left
    VERIFICADO

    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

    €137 (Avg Bid)
    €137 Oferta promedio
    14 ofertas

    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.

    €105 (Avg Bid)
    €105 Oferta promedio
    18 ofertas

    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 Oferta promedio
    38 ofertas

    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 ESP8266 code

    €4 / hr (Avg Bid)
    €4 / hr Oferta promedio
    4 ofertas
    €716 Oferta promedio
    11 ofertas
    Looking for a Real Flask developer 5 días left
    VERIFICADO

    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!

    €23 / hr (Avg Bid)
    €23 / hr Oferta promedio
    35 ofertas

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

    €338 (Avg Bid)
    €338 Oferta promedio
    62 ofertas

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

    €186 (Avg Bid)
    €186 Oferta promedio
    27 ofertas

    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:

    €201 (Avg Bid)
    €201 Oferta promedio
    51 ofertas

    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.

    €162 / hr (Avg Bid)
    €162 / hr Oferta promedio
    37 ofertas

    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...

    €209 (Avg Bid)
    €209 Oferta promedio
    14 ofertas
    Unity Game Developer 3 días left
    VERIFICADO

    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

    €775 (Avg Bid)
    €775 Oferta promedio
    7 ofertas

    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.

    €491 (Avg Bid)
    €491 Oferta promedio
    20 ofertas

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

    €775 (Avg Bid)
    €775 Oferta promedio
    14 ofertas

    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

    €161 (Avg Bid)
    €161 Oferta promedio
    12 ofertas

    I'm looking for rust or a full-stack developer that can help us to build a project on the blockchain. - Full time / part-time position - Accepting applications now DM if you are interested to learn about the project and what we are building

    €5575 (Avg Bid)
    €5575 Oferta promedio
    11 ofertas
    FirstRide123 2 días left

    Candidate Details: Looking to hire a dev with a strong background in android and backend development with a proven history of having delivered multiple projects. Project Details: Location-based discovery platform. Further details are to be disclosed under NDA. Project Timeline: 1-2 months

    €1418 (Avg Bid)
    €1418 Oferta promedio
    30 ofertas

    Project requires experience in protobuf, grpc, http, ssl, familiarity with wireshark and other networking tools along with implementing them into the back end of websites. Share your experience and DM me for more details.

    €549 (Avg Bid)
    €549 Oferta promedio
    19 ofertas
    Backend Developer 2 días left

    Backend Developer Needed: Add Content for Jobs Website Using 3rd Party News API Client has a jobs website, , which features jobs by states in USA: There are 55 individual states, each with 100 pages. Total 5,500 pages. This is where we display our jobs. About 100 jobs per page. These jobs are updated daily. The Problem Google thinks these pages are directory listings, and assumes they don’t have uniqueness. This causes several “discovered not indexed” issues in webmaster (Google Search Console) Solution Add news content to individual pages using a News API Next Steps Evaluate the different News API tools, and present best option in terms of pricing and quality List of News APIs here: Investigate how to integrate Word AI into this to create uniqueness for con...

    €1110 (Avg Bid)
    €1110 Oferta promedio
    23 ofertas
    Hackathon expert 2 días left

    I want an expert in frontend ,backend and database

    €97 (Avg Bid)
    €97 Oferta promedio
    4 ofertas
    build a web app 1 día left
    VERIFICADO

    Need a web app for speech to text conversion which can be connected to some back end APIs performing certain operations

    €316 (Avg Bid)
    €316 Oferta promedio
    9 ofertas

    We are looking for back-end developer for woo commerce customization where we want to create family subscription package with multiple membership I'd support every family members should get unique I'd also that should save in back end database.

    €16 (Avg Bid)
    €16 Oferta promedio
    8 ofertas

    We are looking for a company to build our Dating app (Android & IOS along with the website). Including: Designing, Development, backend, APIs, Testing & Maintenance support. (Complete end to end) Details will be shared post bidding finalization.

    €2094 (Avg Bid)
    €2094 Oferta promedio
    66 ofertas

    Hi All, I am looking for java backend developerk who has knowledge Spring Boot and Microservices. This work completely having a laptop is mandatory. Timings : 7:pm - 2:30 am IST Max budget is: 60-70 K monthly No advance , No hourly bid. Indian developers who can speak Telugu are preferred

    €772 (Avg Bid)
    €772 Oferta promedio
    9 ofertas
    Rust developer 1 día left

    have a web project, and need a Rust developer from backend. ping your weekly rate and rust experience..

    €148 (Avg Bid)
    €148 Oferta promedio
    3 ofertas

    i want an advanced full stack developer for my project

    €538 (Avg Bid)
    €538 Oferta promedio
    6 ofertas

    Hello, We are looking to hire Grails web app framework expert today. Also, we want to hire a frontend developer familiar with React and JSP as we use React/JSP on the FE, and grails on the BE. If you're familiar with Java or Ruby on Rails, this framework will be easy to work on the project. It's an exciting opportunity for an experienced developer who is looking for a new challenge with a fast-growing startup targeting the fastest-growing region in the world. The position is on a contract basis for 6+ months, on a milestone basis with the option to potentially become a full-time team member.

    €2314 (Avg Bid)
    €2314 Oferta promedio
    38 ofertas
    urgently required nodejs developer 17 horas left
    VERIFICADO

    Hey, i have some crud operation work in Nodejs and ejs. Task :- 1. Country(Add, Edit, Delete) :- Country Name, Country Code, Flag, Country Code, Active/Inactive 2. Plan(Add, Edit, Delete) :- Select Country, Plan Name, Price, Validity, Talktime, Active/Inactive 3. Users(View) :- , User Name, Email, Image, Country, Passport Image, Verification Status, Status, 4. Only view - Give A Button Purchased Number when click on it, redirect on another page where:- , Country, Plan Name, Number, Status(Icemode-On/Off, Forward-Yes/No) I have purchased the bootstrap admin panel, you only need to set up and do crud operation. i have requiered complete this task by tonight

    €91 (Avg Bid)
    €91 Oferta promedio
    19 ofertas

    I want a website for my medical center, to follow up on cases and operations, and for me and my help

    €490 (Avg Bid)
    €490 Oferta promedio
    101 ofertas
    Logistics Website 11 horas left
    VERIFICADO

    I am starting a courier/cargo business & need a website for the same. I have tie ups with leading global carriers like FedEx, DHL etc. I would like to integrate their API on my site & would like to give users (my clients) the ability to print labels directly from my site. I would like the following features on my site - User management (login, track, reports, rates etc) - Development of API for my site for integration with my client who sell on various e-commerce platforms & sites - Integrating APIs of vendors with my site - Closed wallet for billing - Tracking facility of packages connected - Payment gateway integration - User specific Mis reports (auto) - Mail / SMS / Push notification - Public Rate - Serviceability Check / Transit time check - Social media, Google - SE...

    €134 (Avg Bid)
    €134 Oferta promedio
    19 ofertas

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