Backend Development Jobs

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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    23 份搜到的工作,货币单位为 USD

    Hello, I am curious to know how difficult it would be to create a tool (please ask me for a reference tool in private, I basically want a 1:1 copy of it, but cannot post the link here in public). It’s basically a tool for email enrichment that uses different enrichment providers and does so by using their API. So basically in email enrichment, there are different providers and each of them offers a different tool. Using only one provider often only results in finding 50% of your clients' emails (your input is first/last name, company name). That’s why using different providers is smart to do, thus often finding up to 80% of emails. Now, the tool I want, links those providers and first uses one tool, and for those leads where an email has not been found, another tool is u...

    $519 (Avg Bid)
    $519 平均报价
    35 个竞标

    Hi, I'm Kate! I'm the CEO of SpeakingAIBot, a small startup that helps to improve English. I am looking to take a survey for IT specialists with beginner-level English proficiency. This survey is targeting any IT-specialist (Developers, QA, DevOps, Project/Product Managers) and it contains around 10 questions. The goal of this project is to learn more about the proficiency of English among those in the IT field. Please, answer only if you have beginner-level of English (A1-B1).

    $23 (Avg Bid)
    $23 平均报价
    13 个竞标

    We are looking for a coder who will be able to make an interactive interface on a touch screen devices for us. The Show Concept The show is a game theatre production about terraforming Mars. Essentially, Earth is quickly becoming uninhabitable, so humankind is making one last desperate attempt to terraform Mars into a new home. For the test we are hoping to have a screen which is mainly a map of Mars, audiences can have basic interactions with this map as explained below. An important thing to note: is that we would need to have a user friendly back end, which a Game Master could update themselves without needing to code. The Interactive Map: I have attached a picture of the map that we're currently thinking of using. Essentially, this map will contain all of the information abo...

    $1407 (Avg Bid)
    $1407 平均报价
    34 个竞标

    I am looking for a dedicated Laravel developer who can work with me on a pre-existing project. The developer must have at least 5 years of experience in Laravel development and must be fluent in English. Tasks: - Full stack development - Backend development - Frontend development Communication: - On-site communication is preferred Ideal Skills and Experience: - Laravel development experience of 5+ years - Strong understanding of PHP, HTML, CSS, and JavaScript - Experience with MySQL database - Familiarity with Git version control - Fluent in English and able to communicate effectively - Ability to work on-site If you possess the above skills and experience, please reach out to me.

    $1213 - $1213
    本地 加封 保密协议
    $1213 - $1213
    28 个竞标

    Dear Developers, PLEASE BEFORE APPLYING READ THE WHOLE DESCRIPTION. Can you develop same website?(Cube layout): NOTE! Please understand you will not create any 2D or 3D elements(no game environments or any environments) Instead you will be using either videos made by you from scratch or existing videos or paid/free videeos that fit the scenery of our website based on our Contents of website. Functionalities We Need: -Login/Sign-up( Anti-Bot Sign-up reCAPTCHA from Google as well) -Payment gateway -Content Delivery(Once a user bought a course only users within the website will have access to our videos in the website) - Shopping Cart(Or Coupon code) for our checkout when a user buys a subscription or course.- -Calendar API I need to make sure you understood the requirements befo...

    $2088 (Avg Bid)
    $2088 平均报价
    72 个竞标
    Full stack developer 5 天 left
    已验证

    we are seeking a proficient Full Stack Developer to help us develop and optimize our online customer and admin portals. This is a project-based freelance role involving a variety of tasks, ranging from data acquisition, website revamp, to data iteration or augmentation. Tasks include but are not limited to: 1. Customer Portal Development: Assist in developing a customer portal using our existing prototype in Python or by using JavaScript and its libraries/frameworks. This portal should enable users to create accounts, log in/out, submit data, and receive estimated emissions of their own products. It should be able to GET and POST data from and to our back-end. 2. Admin Portal Development: Develop an admin portal to allow limited access to our data. It should facilitate data checking and ed...

    $1161 (Avg Bid)
    $1161 平均报价
    188 个竞标

    Backend software architecture via Google Cloud Platform We are new start-up intending to build SAAS service which will connect customers, who use mobile app with suppliers who use ERP systems. Also SAAS should implement additional services. For mobile application we've chosen Flutter with Firebase. And now we need assistance with backend architecture. For backend we consider Google Cloud Platform. Requirements for Backend are the following: - Firebase for mobile app - Relational database for storing solution data (Cloud SQL?) - Cloud framework/IDE to run backend programming code (Golang, Python). May be low code - to speed up the software developments - REST API - Integration with 3d party applications, visualisation dashboards and Big Data tools - Billing? - As an option - B...

    $580 (Avg Bid)
    保密协议
    $580 平均报价
    12 个竞标

    Role: C#, React Full Stack Developer Exp: 6+ Years Location: Remote in India Type of role: Flexible for contract, CTH and Permanent Candidates need to have solid experience in developing scalable back-end functionality using C#, .NET, Lambda, async/await, Windows APIs, WebAPIs Candidates need to have solid experience in developing excellent using ReactJS Excellent communication skills are a must. Ability to work independently with minimal guidance is a must. Must be able to work well in a globally distributed team in Agile mode. Very strong developer Online coding test by client

    $1557 (Avg Bid)
    $1557 平均报价
    45 个竞标
    Refer Auth 4 天 left

    We are a startup looking for a Backend Developer with expertise in Django Rest Framework. You'll be working to build and maintain our backend infrastructure, ensuring the smooth functioning of our products and services. Responsibilities: - Developing and maintaining REST APIs using Django Rest Framework. - Designing and implementing efficient databases using SQL or MongoDB. - Collaborating with the frontend team to integrateAPI endpoints with the user interface. - Troubleshooting and debugging any issues that arise in the backend infrastructure. - Conducting regular code review. Requirements: - Strong proficiency in Python and Django. - Experience in developing APIs using Django Rest Framework. - Expertise in SQL or MongoDB database design and optimization.

    $124 (Avg Bid)
    $124 平均报价
    12 个竞标

    Hello freelancers, We are currently looking for an experienced Full Stack Developer, specializing in backend development with Laravel and frontend development with Angular. As a developer, you will be responsible for designing, developing, and maintaining our web applications. Requirements: Strong experience in backend development using the Laravel framework Proficiency in PHP and best development practices Practical experience in creating and maintaining MySQL databases In-depth knowledge of designing and developing RESTful APIs Experience in frontend development using Angular (or equivalent experience with another JavaScript framework) Ability to work in a team and collaborate effectively with other members of the development team Self-motivation and the ability to manage multiple pro...

    $620 (Avg Bid)
    $620 平均报价
    200 个竞标

    We are a healthcare IT company and have a flagship product called the iPMS web app

    $2384 (Avg Bid)
    $2384 平均报价
    17 个竞标

    We are looking for a Flutter developer to make some changes to our app and website's billing format. Specifically, we need the invoice design customized to our preferences. We do not have a preferred color scheme and will leave it up to the designer's choice. We only need the existing features modified, so no additional functionality is required. Ideal skills for this project include proficiency in Flutter and experience with customizing invoice designs.

    $13 (Avg Bid)
    $13 平均报价
    4 个竞标

    Website Hosting I am looking for a web developer for website deployment. Ideal skills and experience: - Experience with website hosting and deployment with managed hosting services - Ability to set up and manage a website on the chosen hosting provider - Familiarity with website security and SSL certificates - Good communication and customer service skills

    $19 (Avg Bid)
    $19 平均报价
    12 个竞标

    FULL TIME CONTRACT TO HIRE FULL TIME EMPLOYEE SALARY: 150k to 180K PKR/MONTH Full Stack Developer Job Description We are looking for a highly skilled computer programmer who is comfortable with both front and back end programming. The full stack developer is responsible for developing and designing front end web architecture, ensuring the responsiveness of applications, and working alongside graphic designers for web design features, among other duties. The full stack developer will be required to see out a project from conception to final product, requiring good organizational skills and attention to detail. Full Stack Developer Responsibilities: Developing front end website architecture. Designing user interactions on web pages. Developing back-end website applications. Creating servers...

    $13 / hr (Avg Bid)
    $13 / hr 平均报价
    92 个竞标

    I'm looking for an experienced freelancer to integrate 20 servers into my front end apps with OpenVPN protocol. Require it integrated in 5-8 hours. We already have front end for all Mac Windows iOS, android chrome extension. Also auth api integration and payments api integration if possible or not please mention.

    $582 (Avg Bid)
    $582 平均报价
    5 个竞标

    I'm looking for an experienced freelancer to integrate 20 servers into my front end apps with OpenVPN protocol. Require it integrated in 5-8 hours. We already have front end for all Mac Windows iOS, android chrome extension.

    $317 (Avg Bid)
    $317 平均报价
    4 个竞标

    A black box in the air (the will in the air is the self-written will) With the development of society and the lack of human credit, the relationship between people has become more and more selfish, and the information has become more and more closed. Even husband and wife still have a lot of information that they don't know about each other. There are unpredictable things in the sky, and people have misfortunes and blessings. No one can predict the accidental events in life, maybe one day we will suddenly leave this world. Situations like this happen without the slightest warning and the family/beneficiaries don't know what to do? 1. Have you made a will? Where is the will kept? 2. Bank/insurance/stock/fund/other accounts opened at home and abroad? 3. What are the valuable prop...

    $174 (Avg Bid)
    $174 平均报价
    13 个竞标

    I am looking for a Laravel fullstack script developer to work on my existing WhatsApp store and Vcard Creator. I need some feature additions to be made and some customization to be done. Here are some details about the project: Features to be added: - 9 new features need to be added to the existing script - These features are the following: 1. Adding search bar. 2. Adding different product views. 3. Adding filtering products option. 4. Fixing word size and positioning. 5. Fixing payment processing ( Payment gateway ). 6. Fixing Custom Vcard section. 7. Fixing Vcard download look. 8. Fixing google maps section. 9. Adding password protection feature on Vcards. Skills and experience required: - Experience in developing Laravel fullstack scripts - Proficiency in ...

    $63 (Avg Bid)
    $63 平均报价
    30 个竞标

    Overview: We are seeking a talented and experienced freelancer to assist us in completing a unique project that combines the power of imagination, AI technology, and third-party clothes printing. This project aims to bring the concept of personalized, AI-generated clothing to life through an innovative online platform called Kalpify. Project Scope: The freelancer will play a crucial role in implementing key features and functionalities within the Kalpify platform, enabling users to transform their imagination into a fashionable reality. The project will involve integrating a mid-journey chatbot powered by ChatGPT, an advanced language model developed by OpenAI, and establishing a seamless connection with a third-party clothes printing vendor. Responsibilities: Integration of Mid-Jou...

    $1349 (Avg Bid)
    $1349 平均报价
    19 个竞标

    Overview: We are seeking a talented and experienced freelancer to assist us in completing a unique project that combines the power of imagination, AI technology, and third-party clothes printing. This project aims to bring the concept of personalized, AI-generated clothing to life through an innovative online platform called Kalpify. Project Scope: The freelancer will play a crucial role in implementing key features and functionalities within the Kalpify platform, enabling users to transform their imagination into a fashionable reality. The project will involve integrating a mid-journey chatbot powered by ChatGPT, an advanced language model developed by OpenAI, and establishing a seamless connection with a third-party clothes printing vendor. Responsibilities: Integration of Mid-Jou...

    $698 (Avg Bid)
    $698 平均报价
    28 个竞标

    Hello freelancers, We are currently looking for an experienced Full Stack Developer, specializing in backend development with Laravel and frontend development with Angular. As a developer, you will be responsible for designing, developing, and maintaining our web applications. Requirements: Strong experience in backend development using the Laravel framework Proficiency in PHP and best development practices Practical experience in creating and maintaining MySQL databases In-depth knowledge of designing and developing RESTful APIs Experience in frontend development using Angular (or equivalent experience with another JavaScript framework) Ability to work in a team and collaborate effectively with other members of the development team Self-motivation and the ability to manage multiple pro...

    $170 (Avg Bid)
    $170 平均报价
    62 个竞标
    Explicit Filtering Phase -- 2 已经结束 left
    已验证

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

    $470 (Avg Bid)
    $470 平均报价
    29 个竞标

    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)

    $176 (Avg Bid)
    $176 平均报价
    10 个竞标

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