Backend Development is a critical part of any website or software product. It starts with understanding the client's goals and developing solutions that achieve those goals in a cost-effective and scalable way. Backend developers are responsible for more than just code: they have to have a strong understanding of databases, frameworks, and development in general. A backend developer uses this knowledge to turn complicated customer requirements into a efficient, automated solutions that the user experience (UX) team can work with.

When it comes to Backend Development, experience matters - you want someone who's seen a variety of projects and knows the best technology to use for your specific scenario.

Here's some projects that our expert Backend Developer made real:

  • Developing connected systems between websites and local servers
  • Integrating software systems using modern real-time protocols
  • Building bespoke solutions tailored to customer requirements
  • Taking over existing projects and resolving tricky bugs
  • Developing custom solutions using tried and tested frameworks

Backend Development encompasses a wide variety of skills and technologies, so it helps to have an experienced developer on your team who can navigate the complexities of building high-quality solutions. Our expert developers have already undertaken a variety of different projects and can jump into yours with confidence - benefit from their expertise, get your project completed quickly and correctly, and reduce time-to-market for your product. Get in touch today to discuss bringing your project to life, or post your own project in Freelancer.com to hire an experienced Backend Developer.

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    29 δουλειές που βρέθηκαν, με τιμές EUR
    Set up Unity pipeline for a 3D webapp 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    We are looking for a backend developer with expertise in setting up Unity instances on the backend. We are a 3D modelling app that helps users create game outfits. We would like to let our users design and export Unity designs. We will implement this ourselves but we need advice from someone knowledgeable to help us. Required experience - You must have experience of setting up Unity transformer on the backend and simply making it work - You must have experience with having multiple instances of Unity (so that your implementation can process multiple requests at once). We use Kafka, so Kafka knowledge is required - A nice to have: you scaled your Unity implementation to more than 5 requests per minute Looking forward to talking to you!

    €18 / hr (Avg Bid)
    €18 / hr Μέση Προσφορά
    9 προσφορές
    Finalise Flutter project in FlutterFlow 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Hello, I am currently in need of a skilled individual to complete my Flutterflow app. The design phase is almost finished, with only a few final adjustments needed to reach 100% completion. Integration of the transaction API and setting up the payment process with Stripe is also necessary. Additionally, a backend database is required to store all dynamic data. This project also offers the opportunity for a long-term partnership, as my client is looking for someone to handle maintenance and upgrades in the future. It's a great opportunity for those looking to transition into a long-term project.

    €331 (Avg Bid)
    €331 Μέση Προσφορά
    46 προσφορές
    Chatbot (whatsapp or telegram): ToDo manager 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I'd like a quote for a telegram or whatsapp chatbot that manages my to-do list using the scrum methodology (sprints, standups, retrospectives). I already have a kind of data schema and flows. How much would it cost to build out?

    €136 (Avg Bid)
    €136 Μέση Προσφορά
    14 προσφορές
    Create website 6 μέρες left

    This platform will have to store data, since it will have subscriptions and the payment and user data will have to be safe. It will be a platform for chords and song lyrics, to give you an idea, think that I want to create a spotify but instead with mp4 files, which are text files. It will have to have a playlist, a like button, and many more features. Everything has to be under the React framework, so that when you like a song, it is saved without the need to refresh the page. I need a person specialized in Backend, a person specialized in frontend and a person specialized in online security. A clear example of a website that I want to create is

    €2227 (Avg Bid)
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    72 προσφορές
    Socio desarrollador - cofounder de App Web 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    En La Punta del Iceberg buscamos un socio senior con conocimientos y experiencia en Front-End y Back-End para participar en el desarrollo de nuevos productos y servicios de base tecnológica. Esta no es una posición laboral tradicional. Por favor lee completamente la convocatoria antes de aplicar.   Hemos avanzado en la definición de funcionalidades y características de un primer producto, así como en el diseño del modelo de negocio correspondiente. El reto es llevarlo en primera instancia a un prototipo, luego a un Product Market Fit y de allí, acompañar la gestión del ciclo de vida del producto.   El perfil que buscamos:   1. Mentalidad emprendedora. 2. Conocimiento y/o experiencia senior en ár...

    €20 (Avg Bid)
    €20 Μέση Προσφορά
    4 προσφορές

    EXPERT TEAMS OR INDIVIDUALS ONLY Current app frontend is developed in Flutter. Need a skillful team to finish the backend. App is for iOS, Android, & Web. Will need the typical features of chat (text, voice, video for 1-1 and groups), video sharing, security...etc. We need a fault tolerant, scalable backend. Choose infrastructure of your choice. Need to complete this in 3 months. Ask yourself if you have the skillsets to create a backend that would support a mini Facebook.

    €31037 (Avg Bid)
    €31037 Μέση Προσφορά
    77 προσφορές
    Dropbox decentralized 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Fully decentralized File immutability Competitive free plan Autonomous

    €2358 (Avg Bid)
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    42 προσφορές

    I'm looking for a talented and experienced Laravel Developer to update and customize an existing virtual card script. The project includes both modifying existing scripts and developing from scratch, but we don't need any hosting services. The scope of the project requires the Developer to be proficient in all aspects of full stack development, including frontend and backend development. The ideal candidate should have prior experience working with Laravel, as well as have a solid understanding and the ability to work with HTML, AJAX, JavaScript, PHP, MySQL and Bootstrap. The project budget is $50. If you are interested in demonstrating your skills and have the confidence you can complete the project, please apply and include any relevant examples of past work. Thank you. Pay $50...

    €42 (Avg Bid)
    €42 Μέση Προσφορά
    21 προσφορές

    Saya terbiasa membuat website dan aplikasi website memggunakan codeigniter

    €16 / hr (Avg Bid)
    €16 / hr Μέση Προσφορά
    9 προσφορές
    Need python backend Enginner 4 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I am in need of a talented python backend engineer to make changes to an existing web application. I am looking for someone who has experience working with python, is familiar with relational databases, and has experience with API design and development. I need the project completed as soon as possible - so someone who is available to begin work quickly would be ideal. Understanding the requirements of the project and being able to accurately complete them in a timely manner is essential. If this sounds like something you can do, I would be delighted to have you join my team.

    €20 (Avg Bid)
    €20 Μέση Προσφορά
    13 προσφορές
    I need to create a project in Microsoft Power Apps 3 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I need a professional! I need to know your qualifications, experience and rates.

    €20 / hr (Avg Bid)
    €20 / hr Μέση Προσφορά
    34 προσφορές
    Need a Full Stack Developer 3 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I need help with Health Management System Project, MERN Stack Can Pay Monthly of 30,000-40,000 INR, It has to be completed in a month. Part Time or Full Time works Only Developers Please, I don't want agencies to bid because the budget is less

    €352 (Avg Bid)
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    21 προσφορές
    firebase cloud funcs 2 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    i'm trying to validate user's register and login, and i want someone to explain me simple steps on how to handle errors on the backend

    €42 (Avg Bid)
    €42 Μέση Προσφορά
    14 προσφορές
    Finalized an application 2 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Posted an app on IOS and android and make sure are running smoothly.

    €397 (Avg Bid)
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    36 προσφορές

    Building a Web application that uses chat gpt to help law school students with a certain task.

    €19 / hr (Avg Bid)
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    104 προσφορές
    Project GitHub 2 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I'm looking for an experienced freelancer to help me create and manage a private repository on GitHub for my project. I don't currently have a project team identified, but once I do, I'll need them to have different levels of permissions, which we can discuss when the time comes. My goal is to have a secure, private repository that my project team can access, both to write and read data, so that we can collaborate on the project effectively. I'm looking forward to hearing from people who have the expertise and knowledge required to help me create this repository and manage its security.

    €32 (Avg Bid)
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    18 προσφορές
    Delivery de comida 1 μέρα left

    Hola necesito información para crear una app igual a pedidos ya. Quisiera saber de costos y tiempo.

    €2030 (Avg Bid)
    €2030 Μέση Προσφορά
    28 προσφορές

    We are a leading provider of VPN, web-scraping, and proxy services looking to expand our team with an experienced Full Stack Software Developer. This is a full-time, remote position with the potential for permanent employment. The ideal candidate will have a strong background in developing applications for Windows, MacOS, Android, iOS, and Chrome extensions. We are seeking a developer who can deliver high-quality frontend and backend solutions for our products. Responsibilities: Develop and maintain a range of applications for Windows, MacOS, Android, iOS, and Chrome extensions. Collaborate with cross-functional teams to define, design, and ship new features and products. Implement high-quality, visually appealing frontend interfaces that provide excellent user experiences. Develop and o...

    €20 / hr (Avg Bid)
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    80 προσφορές

    I am looking for splunk expert for generating splunk report that will run the large data sets and modifying existing splunk queries to measure latencies and bandwidth

    €18 / hr (Avg Bid)
    €18 / hr Μέση Προσφορά
    4 προσφορές

    We require a team of experts to build a website and a native mobile app for our firm. See video attached as a introduction! You have to have a team of the following experts; Mobile Developer Backend Developer Developer operations specialist User Experience Specialists Designer Quality Assurance Specialists Project Manager

    €14402 (Avg Bid)
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    98 προσφορές
    Artificial Intelligence Phyton Developer 1 μέρα left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I am looking for a skilled artificial intelligence developer with experience in Python programming language to help me deploy AI on a web and mobile platform. Familiarity with the latest techniques and technologies is necessary. The project should be written in Python and be delivered as an RESTful API. The ideal candidate for this project should have in-depth understanding of AI principles, a background in developing applications with Python and have an understanding of RESTful API development. The candidate should demonstrate the ability to solve complex problems, accelerated learning capability and creative thinking. The specific tasks of the project will include: creating algorithms, training and deploying AI models, code debugging, data engineering, integration of existing solutions...

    €7 / hr (Avg Bid)
    €7 / hr Μέση Προσφορά
    23 προσφορές

    We need project management system with cloud storage & computing system for our internal purpose. It can be based on the open source code.

    €311 (Avg Bid)
    €311 Μέση Προσφορά
    16 προσφορές
    ANDROID APP AND WEBSITE. 16 ώρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    We have a finance company. What i am looking for is to get an app developed wherein a mobile retailer enters the detail of customers phone like NAME, IMEI number. Down payment and stuff and then a barcode is created. Which can be scanned by customers phone. And then customers phone is rooted and can be controlled by the company. Like when customer goes faulty , company can lock the phone and various features. The lock should be so strong that it can not be broken easily. This feature is used bh samsung finance. Sharing a link for the videos which can describe how these type of apps work

    €564 (Avg Bid)
    €564 Μέση Προσφορά
    20 προσφορές
    AI/ML based Web Application Development (Job Portal) 13 ώρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I am looking for a freelancer with experience in web application development utilizing AI/ML technology. The application needs to process numerical data and should be built using Python. Additionally, the freelancer should have the flexibility to consider utilizing an existing AI/ML framework, if necessary. I need a freelancer that is creative in their approach and confident in their abilities to provide the optimal level of functionality for my web application. The ideal candidate should be able to produce high quality results and provide feedback in a timely manner. Any experience with integrating AI/ML technology into web applications would be beneficial. I'm looking for someone that can help me develop an advanced web application with a focus on utilizing AI/ML technology to p...

    €2198 (Avg Bid)
    €2198 Μέση Προσφορά
    29 προσφορές

    I have website I want a freelancer for making APis for that

    €114 (Avg Bid)
    €114 Μέση Προσφορά
    28 προσφορές

    I am a ux designer and need someone to design build website from figma and Adobe XD designs. Need developer for both frontend and backend. Please don't apply if you are a firm or a company. I need independent developers with whome I can work to develop websites.

    €107 (Avg Bid)
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    22 προσφορές
    Email Deliverability Expert 5 ώρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I am looking for an experienced email deliverability expert to diagnose and resolve this. Resolve and improve the open rate of our general emails, transactional emails, and marketing. Currently, our deliverability rate for emails is less than 20%, and I want to find someone who can resolve this issue. The goal of this project is to increase the open rate of our emails and to make sure that they are successful in being delivered to recipients. The ideal candidate will have extensive experience in improving email deliverability, implementing best practices for email success, and understanding email deliverability metrics. If you have the expertise to effectively improve my email deliverability, Email Deliverability Expert. We are looking for a skilled Email Deliverability Expert to...

    €19 - €155
    Σφραγισμένο
    €19 - €155
    9 προσφορές
    Explicit Filtering Phase -- 2 Έχει λήξει left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Explicit Filtering Phase project as discussed in chat for phrase detection and resultant redirect.

    €437 (Avg Bid)
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    29 προσφορές
    Web stresser / booter source Έχει λήξει left

    Hello! I need someone to build this site for me, ideally if you already have experience in this industry. As a reference I can offer already finished leaked source codes. (needs to be integrated with Bitcoin payment gateway, and I don't want to redirect users, I want it to be displayed everything on my site) (I will provide Bootstrap frontend)

    €164 (Avg Bid)
    €164 Μέση Προσφορά
    10 προσφορές

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