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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    49 jobs found, pricing in USD

    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

    $177 (Avg Bid)
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    16 bids

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

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    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.

    $2812 (Avg Bid)
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    full time node.js dev 6 days left
    VERIFIED

    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...

    $210 (Avg Bid)
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    full-time node.js dev 6 days left
    VERIFIED

    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...

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    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...

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    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...

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

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    Web development 5 days left

    Need designer, UI developer and backend person

    $5375 (Avg Bid)
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    Digital Out-of-Home (outdoor video ads with demographic collection) backend application revamp. Video ads played on screens in supermarkets and convenience stores across the country. Screens also contain an image processing component that capture the demographic information of the actual viewers of these ads (age, gender, facial expression). Ads are scheduled and played by partner Content Management System. Demographics information is captured by partner Vision processing system. Data from both partners are processed by our back end app.

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    Hello, I'm looking for an INDIVIDUAL Python/Flask developer who can help with our backend API development in a long term engagement. I will share more details with shortlisted candidates in private message so please include your unique and specific Python Flask experience in your proposal. Thanks

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    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

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    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

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

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    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

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    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

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    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

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    Hello, I'm looking for an INDIVIDUAL Python/Flask developer who can help with our backend API development in a long term engagement. I will share more details with shortlisted candidates in private message so please include your unique and specific Python Flask experience in your proposal. Thanks

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    app ios android 3 days left
    VERIFIED

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

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    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 ...

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    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...

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    Forum/Blog 2 days left
    VERIFIED

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

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    NDA
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    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

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    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...

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    Hello, I'm looking for an INDIVIDUAL Python/Flask developer who can help with our backend API development in a long term engagement. I will share more details with shortlisted candidates in private message so please include your unique and specific Python Flask experience in your proposal. Thanks

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    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

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    Hello, I'm looking for an INDIVIDUAL Python/Flask developer who can help with our backend API development in a long term engagement. I will share more details with shortlisted candidates in private message so please include your unique and specific Python Flask experience in your proposal. Thanks

    $23 / hr (Avg Bid)
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    30 bids

    Hello, I'm looking for an INDIVIDUAL Python/Flask developer who can help with our backend API development in a long term engagement. I will share more details with shortlisted candidates in private message so please include your unique and specific Python Flask experience in your proposal. Thanks

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    Create a digital ocean id migrate : and to digital ocean

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    We are looking for a Smart Contracts Developer for a long-term period. YOUR TASKS & RESPONSABILITIES Design smart contracts for enterprise and community products Design Dapp/DeFi protocols specifically tailored to an UTXO-based ledger more specifically Cardano’s Plutus Research and develop scalable and efficient eUTXO models Establish standard practices and methodologies for engineering in the team Write well-tested, well-documented, performant, clean, and re-usable code YOUR PROFILE Good proficient in Haskell Understand Cardano’s eUTXO model Exposure to Plutus Core and Cardano’s PAB Knowledge of modern build pipelines and tools (CI/CD) Excellent troubleshooting, problem-solving, and analytical skills Good level of English Bonus: Previous experience with web3 comp...

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    ------------------------------------------------------------------------------------------------------------------------------ To: Any agencies or group of freelancers who forward projects to the next group or agencies. **Please do not apply and waste the time mutually**. We are looking for individual developers only. ------------------------------------------------------------------------------------------------------------------------------ Hi, I am looking for a PHP developer with experience building REST APIs using frameworks like Laravel or Lumen. Experience with any other PHP Framework (Zend, CodeIgniter, Symphony, Yii) will also work, as long as developer is confident building secure REST APIs using the same. Selected freelancer will be working on building APIs for an e-c...

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    Local
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    Hello, I'm looking for an INDIVIDUAL Python/Flask developer who can help with our backend API development in a long term engagement. I will share more details with shortlisted candidates in private message so please include your unique and specific Python Flask experience in your proposal. Thanks

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    Products integration 1 day left
    VERIFIED

    uploading or integration of products unto the website Laravel php

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    Hi, I am Madhav Kalia, from India. I have recently opened a mobile gaming startup named BoredLeaders. My past experiences lie in investment banking and as head of strategy and finance in a payments startup. BoredLeaders is a completely bootstrapped startup and operating on a tight budget. At BoredLeaders, I have designed a light strategy board game named Pillage for the mass mobile gamer market which is booming. I intend to have business model of free to play with ads and IAP for initial launch. Subsequently, based on the success of the initial free-to-play game, I also plan to launch a Real Money Gaming model (which is permissible in all 7 states of India). Let us connect and I will show you an entire game design overview deck. I have a GDD also ready and basic art such as game boar...

    $1016 - $2033
    Local Urgent Sealed NDA
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    6 bids
    Mobile App development 1 day left
    VERIFIED

    hi, we are a medical suppliance company in Mexico, and we have an e comerce website to sell online, but now we need to develop an mobile App that is similar but with more functions. we have the document of needs but in the big picture its something like any pharmacy or supermarket mobile app. document of needs : our website: reference mobile App: FARMACIA San Pablo (Mexico)

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    I am seeking an partner who can work with for long term. Will test the candidate and work with him/her If you can start right now, please let me know, Or don't waste my time

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    Creating a website 18 hours left

    Implementation of the frontend and backend of the website. Industry: cryptocurrencies. I have a graphic UI for the mobile and desktop versions.

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    I need a developer having previous experience in fintech development. I want to build up a site for stock market and having similar functionalities like Upstox or Zerodha Kite, etc.

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    Please contact us if you can design a website for an industrial product advertising company. Even better if you can do the backend part. Remuneration is generous, and it is expected that it will take approximately two weeks.

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    College finder 14 hours left
    VERIFIED

    Looking for a freelancer to design and develop a college finder web application. the application will allow the university/college to CRUD profiles and list their courses, application date, fee, study duration, location, etc.. Students will CRUD profiles to search, match and apply for courses "it's a LinkedIn of university admission" Only people with experiences in react and a proven work portfolios will be considered.

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    We are looking to build a well architected software suite for an e-commerce insurance marketplace, where users can view, compare and buy insurance policies in multiple currencies. We are looking to support Health insurance, Car Insurance, Travel Insurance, Home appliances insurance. In the future, we may need to add new insurance categories, therefore that capability should be architected into the software. We are looking to take a website-first approach, but web APIs should also be exposed so that other types of clients can consume that, as the website. An admin portal for managing the products and users should also the built separately. Please note that the person or team that will take this job will work with our engineering lead throughout the duration of the project for the purpose ...

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    We use a tool called as Freshworks where new contacts are created. We use another tool called as ozonetel which is a calling tool for reaching out these contacts. We need to develop an API for pushing new contacts to ozoentels campaign which will allow us auto trigger calls.

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    You need UI coding (mobile and desktop version) for the website. (We are talking about front end and back end). A project based on the crypto industry.

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    Hi, 1. Only developers who are not occupied with other projects need to bid. 2. Super fast delivery needed, not in weeks, but in days. Form with Email verify & oAuth ( Google, FB, LinkedIN ) based Signup Mobile OTP based Login, alongwith normal Login Admin Panel as per Wireframes ( will be provided ) App modules in 3 phases, which roughly comprises of : Video uploads with tagging & needed parameters Video viewing & responding by Users ( 3 response methods ) 3 response methods,as in APP UI ( Video recording & upload, Audio recording & upload, Typing text ) All images & data coming through Back-end in App Speech to text API coding ( Phase-1 will use Google Speech to Text & Vice versa API ) Calculating result, as per algorithm provided ( comparison to 4 text lib...

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    Hello everybody, We are hiring a blockchain software engineer who can create us the Back-end of a marketplace like Udemy but with NFT and connect it with Wordpress. If we are satisfying with your work you will start to work with us with a good salary and a % of the business

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    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 ...

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    Pagina de vendas 3 days left
    VERIFIED

    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

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