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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    51 trabajados encontrados, precios en USD

    Quiero hacer una app y necesito la persona adecuada. Madrid

    $2512 (Avg Bid)
    $2512 Oferta promedio
    72 ofertas
    Tutoring backend programming 6 días left
    VERIFICADO

    Hi everyone 1- I wanna learn backend programming because I already know the front-end, Can you teach me that? 2- Can you define the lesson syllabus before the class so we can manage the time correctly? 3- Can you show me an website you have developed its backend?

    $21 / hr (Avg Bid)
    $21 / hr Oferta promedio
    5 ofertas
    Fix build my app 6 días left
    VERIFICADO

    I have an existing web app and i want you to fix it and add api. theres 7 task.

    $168 (Avg Bid)
    $168 Oferta promedio
    10 ofertas

    We have a custom laravel php app web site on our server. We offer people cash for their smart phones, tablets and other electronics. We are looking for a feature to put on the back-end of our cms / admin. This feature must provide basic business analytics reports on how many products sold, how much profit, filter by dates, what phones electronics sold, etc You get the point here. Our web site uses Mariah DB, Laravel PHP, Blade and Dedicated Server. You must have experience and start working and finish fast. You must have clean code. And have understanding of sales, business and code development.

    $215 (Avg Bid)
    $215 Oferta promedio
    12 ofertas

    A app like close to urban company mobile application. requirements 100% Frontend ( UI/UX is made) Integrate Backend and Make a FULLY FUNCTIONAL APP (backend is already made) under 10000Rs. Contact to discuss the details if interested and More future projects assurance.

    $135 (Avg Bid)
    $135 Oferta promedio
    5 ofertas

    New Element AS har levert webløsninger til SMB markedet i over 20 år. Vi trenger en fast freelance webutvikler, som har bosted i Norge for eksisterende og nye prosjekter.

    $25 - $50 / hr
    $25 - $50 / hr
    0 ofertas
    $4017 Oferta promedio
    25 ofertas

    Looking for a backend developer for a project in startup on a freelance basis. We are currently working on prototype of our portal. We can decide the budget for the whole project over the google meet.

    $132 (Avg Bid)
    $132 Oferta promedio
    28 ofertas

    1. Auto Optimization of the Legoized Image based on usage of paid or free API’s where the final legoized image must look similar to Brick Me website ( ) 2. Automatic recognition of best colours for the final legoized image whenever a new Image is uploaded in the Image recognition software based on the colour palette 3. Backend Operations where the final legoized Image must be stored in the database and Colour Distribution on the final legoized image along with the CSV file having colour distribution must be sent to Admin panel after user proceeds to buy the Legoized Image… 4. This project is coded in Node JS and Vue JS 5. If the above mentioned changes cannot be done , can you create a new Image recognition software library from scratch which turns photos into Lego compatible...

    $20 - $166
    $20 - $166
    0 ofertas
    Back-End Web Developer - IV -- 4 5 días left
    VERIFICADO

    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 Send us links to samples of your work.

    $9 / hr (Avg Bid)
    $9 / hr Oferta promedio
    8 ofertas

    We need sensor data generator for Akamai under website. For more details and specs, please send a personal message

    $542 (Avg Bid)
    $542 Oferta promedio
    9 ofertas

    Hello, We are looking for talented people to join our team. This is a full-time remote position.

    $1657 (Avg Bid)
    $1657 Oferta promedio
    20 ofertas

    Currently inspectors go to different companies and record the status of different company equipment into their notebooks and after reaching back to the home they record the details into word documents in predefined formats. Problem with current approach Too much of time to prepare the documents Information is getting lost Not adhering to the document structure

    $942 (Avg Bid)
    $942 Oferta promedio
    10 ofertas

    I want to remove this post from Reddit, I've reached out to several freelancers and contact Reddit support, but all in vain.

    $533 (Avg Bid)
    $533 Oferta promedio
    4 ofertas

    I am looking for a backend developer to set up a system where I can: - Input new partners - Upload Documents - Integrate a payment system (Stripe) - Integrate a CRM system (Salesforce or anything) - Automated Emailing for order confirmations (to key stakeholders) - Mailchimp or another platform - Collect and manage the data received from the purchase orders - Creat blog posts for social media outlets. The frontend has been developed on React.js

    $437 (Avg Bid)
    $437 Oferta promedio
    37 ofertas

    Our organization own an online web platform writen in php. The structure is complicated and has many modules. We need one experienced in php developer as a new member of the team to work on daily basis (6/7) for 4 hours per day for long time with daily basis briefing. Every time we start a new module we set a timetable estimation but the project is hourly paid because every day we test and change our plans and directions if this is mandatory for the project.

    $12 / hr (Avg Bid)
    $12 / hr Oferta promedio
    25 ofertas

    We are setting up a team to make trading activities using APIs. The trading signals (bidding / buying) will be provided by a 3rd party (Let's call it the trading data source) and then with this signals there will be some data management (like filtering and ranking) and finally these ranked signals will be used to make actual bids.

    $19 / hr (Avg Bid)
    $19 / hr Oferta promedio
    32 ofertas

    Sebusca equipo con desarrolador frontend, y backend, QA y diseñador para realizar los bocetos de la plataforma y creación estructura inicial. Uso de sicmap y satelite sentinel para identificar parcelas. Hito1:Plasmar la idea en unos bocetos y pantallas Inicialmente se transformará la idea mediante bocetos la idea del proyecto

    $564 (Avg Bid)
    $564 Oferta promedio
    16 ofertas

    Hi! I work for company now needed release custom service. We need website developement to help us build the front and back end system for our website based on woocommence and wordpress. In conclusion, we need your help to develope a system that connects cases artists and customers, once the customer order our customize case service, the order will send to the cooresponding artist to design. How it works: Artist collects customers ideas or pictures, and then shows customers inspiration or materials customers provided on a phone case by drawing. customers will receive a design surprise and a unique phone case. Customers upload the inspiration and ideas with photos, text, stamp or meaningful words, main color and style they choose. What you need to do: 1. Back-end development: - Form seri...

    $30280 (Avg Bid)
    $30280 Oferta promedio
    109 ofertas
    website develope 4 días left

    Hi! I work for company now needed release custom service. We need website developement to help us build the front and back end system for our website based on woocommence and wordpress. In conclusion, we need your help to develope a system that connects cases artists and customers, once the customer order our customize case service, the order will send to the cooresponding artist to design. How it works: Artist collects customers ideas or pictures, and then shows customers inspiration or materials customers provided on a phone case by drawing. customers will receive a design surprise and a unique phone case. Customers upload the inspiration and ideas with photos, text, stamp or meaningful words, main color and style they choose. What you need to do: 1. Back-end development: - Form ser...

    $33020 (Avg Bid)
    $33020 Oferta promedio
    66 ofertas

    We are looking to build a single platform on which we will be able to sell various insurance like Life, Health and motor and as well as lend money to people. Incase of Insurance, platform should be able to showcase products, capture customer requirements, show product details and help in customer acquisition. After that the customer is converted, he/she should be able to do claim settlements and raise concerns in case of issue. Incase of money lending, customer should be able to request for loan and settle his loan(like payment of EMI) on single platform.

    $1858 (Avg Bid)
    $1858 Oferta promedio
    47 ofertas
    Build me a Django app for backend 4 días left
    VERIFICADO

    low budget. I will explain personally

    $146 (Avg Bid)
    $146 Oferta promedio
    19 ofertas
    PHP developer for Android app 4 días left
    VERIFICADO

    I'm an individual android app developer. I'm developing a job application like freelancer and Upwork. I need only help to connect with MySQL. Also I need to send notifications for PHP to android app. And more. My budget is very low because I need only help. Please Indian only because I need to discuss the project on call

    $44 (Avg Bid)
    $44 Oferta promedio
    4 ofertas

    Note this is 2 app 1st app : add auth use third party API for my app API means API of app marketplace, deploy frontend, backend and domain, 2nd app: Build me a web messaging all features included use sdk and use third party API for my app means API of App marketplace, both needs API, ill Explain the API low budget dev under $200 if you can do this 2 apps for $200 we can start. Note we need to start it this week. thanks

    $186 (Avg Bid)
    $186 Oferta promedio
    6 ofertas

    Erc 721 smart contract with following functions : - minting - whitelist sale - public sale possible public sale no2 - nft on stored on blockchain not on ipfs - minting for founder and for airdrop ( specific number of nft) - ability to trade nft on website ( exchange nft - no buy sell) - connection with all possible wallets integration ( using wallet connect) - royalty fee for each transaction including transfer ( trade) - ability to trade different number of nft to different number ( expl i will give you 2 nfs for 1 of yours)( exhange) - random mint, ( not one after another) - integration with open sea or immutable x marketplace - no front end work just integration with website ( create minting button) and web3. - deploy on live net ( Ethereum blockchain) i will provide similar contract...

    $191 (Avg Bid)
    $191 Oferta promedio
    11 ofertas

    Good evening everyone. I own an online casino site with slots, roulette, virtual games, live casino and I am looking for a developer to build a backend for my site. My games have been installed on my site through an API and the backend has to show all game statistics. My current backend was built with Lavarel. I leave below the credentials of an example backend that has all the functions that my new backend should have. Backend: Username: GRGMRN Passwor: 123456 Contact me if you are really interested in the realization of the backend, we can talk privately or on WhatsApp / Telegram.

    $876 (Avg Bid)
    $876 Oferta promedio
    24 ofertas

    Need an experienced web developer who is very good at frontend to build a dynamic website. Please message me for more details and we shall discuss more on the requirements.

    $127 (Avg Bid)
    $127 Oferta promedio
    24 ofertas
    Income Verification Report 3 días left
    VERIFICADO

    I´m looking for a programmer to help me develop an income verification report using an Open Banking API of which is a Latin American API platform. Basically the report will look like the following attachment. This report is for consumer banking organizations; non-bank lenders, landlords and other users to verify the income of people requesting consumer credit or leasing of properties. Please view the attached sample report for guidance. The system will require a back-end for admin and user access and also a payment processor integration to charge per report generated. The user will login, and insert their banking credentials and authorize the generation of the report, then they will select the customer that will receive this report. One copy will be sent to their email addres...

    $1389 (Avg Bid)
    $1389 Oferta promedio
    20 ofertas

    Hello, We are looking for talented people to join our team. This is a full-time remote position.

    $2740 (Avg Bid)
    $2740 Oferta promedio
    9 ofertas
    REST- Ful Web Service API Task 3 días left
    VERIFICADO

    REST- Ful Web Service API Task needs to be completed in next 36-48 Hours

    $36 (Avg Bid)
    $36 Oferta promedio
    10 ofertas

    Need Expert WordPress Developer Needed Who able to create theme and plugins ? Who develop theme from scratch ? Timings -9am to 5pm CDT Salary Negotiable for right candidate

    $15 / hr (Avg Bid)
    $15 / hr Oferta promedio
    17 ofertas

    Website and Developer Portal required to provide weather forecasting services. Reference:

    $550 (Avg Bid)
    Destacado
    $550 Oferta promedio
    4 ofertas

    Android ve IOS cihazlarda çalışacak PTT ( Puch to talk ) Bas-konuş platfomu yazdırmak istiyoruz örnek ürün:

    $20 / hr (Avg Bid)
    $20 / hr Oferta promedio
    8 ofertas

    Hi, I want to develop iOS/Android game app (including Mahjong and poker may slot machines). I also need to create a backend and admin panel for this project for membership management and points top up and transfer/winning and loss tracking. The download method should be like Natural 8 which uses super signature.

    $8626 (Avg Bid)
    $8626 Oferta promedio
    16 ofertas

    Share your ideas and if favorable then we will prefer to initiate the project.

    $90 (Avg Bid)
    $90 Oferta promedio
    7 ofertas

    Engineering final year projects related to Machine learning

    $107 (Avg Bid)
    $107 Oferta promedio
    14 ofertas

    An online platform where clients and individuals can view per unit rate of construction materials and other materials, including cost of hiring of equipment per day in a particular location. Other services would include Selection of competent professionals, contractors (construction/ engineering companies) and potential material suppliers. The platform would have two ends. The First end would be the clients (subscribers) and the second end would comprise of three categories: Estimators, Professional and Contractors (company). The Estimators: they're qualified and/or experienced individuals (quantity surveyors, engineers, business owners, marketers, etc.) that would be responsible for providing on a daily basis market prices of construction materials and equipment. They would be requi...

    $756 (Avg Bid)
    $756 Oferta promedio
    5 ofertas

    We are looking to hire 5 developers with strong Nodejs & Mysql backgrounds. Ideally someone who is a power user of mysql and have experienced with code refactoring in nodeJs realm. Each of the hired developer will be working with our existing team and hence must be available during official working hours. We are pretty much flexible company and try to compensate/reward well for good performers. This is a long term contract.

    $33 / hr (Avg Bid)
    $33 / hr Oferta promedio
    15 ofertas

    This is our website: We use Shopify. I am experiencing a big problem with Facebook Pixel tracking. Let me explain… The Pixel is over attributing Adds to Cart, Initiated Checkouts, Purchasses, Conversion Value, etc. The store traffic and clicks is tracking correctly. This is my client’s accont. They installed the pixel like 2 years ago. Maybe they did something wrong back then. The conversión API is also installed. I’ve already connected and disconnected the pixel through partners integration and nothing changes. What is annoying is that when I test events on the events manager, it tracks all the events properly. All the PageViews, adds to cart, purchasses… It used to have deduplications or some buttons that were not tracking properly. When I first ch...

    $562 (Avg Bid)
    $562 Oferta promedio
    15 ofertas

    For a project to create a website for a real estate agency, I'm looking for a professional who can manage the connection with the management system for uploading properties to the website (the management system should generate an XML file available via FTP) and the association of the characteristics of the properties with the custom fields that will be created. The website will have 3 locations on different sub domains (, , ) and therefore it will be necessary to link the correct XML for each location. The project will be developed on a Wordpress platform and a custom theme will be created with the Divi builder. WEBSITE DEVELOPMENT IS NOT REQUIRED. Delivery of the work is scheduled for the end of February 2022.

    $666 (Avg Bid)
    $666 Oferta promedio
    85 ofertas

    Create a faculty research portal, displaying their research work, and te publications with abstracts maybe, the co author network, a word cloud for the research work done, and a separate director portal where he can search for the faculties

    $19 (Avg Bid)
    $19 Oferta promedio
    2 ofertas

    Portal for Faculty displaying their research work and a word cloud, with an additional search field using MongoDB, and anything with backend, somewhat similar to dblp (a mini version), for our institute

    $199 (Avg Bid)
    $199 Oferta promedio
    4 ofertas

    Hello, I'm looking for an individual Python-Flask expert who can help with our backend enhancements in a long term. We're using PostgreSQL as Database I can share more in detail with shortlisted candidates in private message so please include your unique and specific Python Flask experience in your proposal. Thanks

    $21 / hr (Avg Bid)
    $21 / hr Oferta promedio
    33 ofertas

    Hello, I'm looking for an individual Python-Flask expert who can help with our backend enhancements in a long term. We're using PostgreSQL as Database I can share more in detail with shortlisted candidates in private message so please include your unique and specific Python Flask experience in your proposal. Thanks

    $19 / hr (Avg Bid)
    $19 / hr Oferta promedio
    24 ofertas

    Needs to hire 2 Freelancers Looking for a back end developer skilled in MERN stack to assist our current team. Must be reliable with good English communication skills. Looking for individuals only - NO Agencies Message to discuss more details

    $2458 (Avg Bid)
    $2458 Oferta promedio
    12 ofertas

    We are working on a product, that enables user to invest in collectables and selling fractional ownership for things they love. We building the new coinbase for collectables. People can buy and trade fraction of rare collectibles. The app exists already and need you to support the team and bringing our app top the next level. Our website: You will be part of our product team and working on tickets within a sprint. We are looking for someone who can support our backend team with 3+ NodeJs, Typescript and AWS skills. We are looking for a long term engagement, at least 3-6 month full time. If you having very well communication skills(english) and your timezone macthes CET +/- 2 hours, you could be the perfect fit we are looking for.

    $41 / hr (Avg Bid)
    $41 / hr Oferta promedio
    52 ofertas

    Hello, I'm looking for an individual Python-Flask expert who can help with our backend enhancements in a long term. We're using PostgreSQL as Database I can share more in detail with shortlisted candidates in private message so please include your unique and specific Python Flask experience in your proposal. Thanks

    $21 / hr (Avg Bid)
    $21 / hr Oferta promedio
    41 ofertas

    App link: Major tasks: Build guest user schema, guest cart, cart merging on login/signup, allow apis for guest users, restrict guest users from cart checkout ...

    $93 (Avg Bid)
    $93 Oferta promedio
    1 ofertas
    Add features in DOTNET Backend 7 horas left
    VERIFICADO

    Hello to everyone, i need a backend developer .Net Core. I need to implement some services to my application. My application stack: front end -> nextjs and backend with dotnet. I have two tasks: 1) I need to integrate Shopify products from an store. Actually I have integrated WooCommerce. 2) The application have a streaming video service. I need to integrate a VOD, and get assets. Actually I have the stream part.

    $633 (Avg Bid)
    $633 Oferta promedio
    35 ofertas

    Hello, I'm looking for an individual Python-Flask expert who can help with our backend enhancements in a long term. We're using PostgreSQL as Database I can share more in detail with shortlisted candidates in private message so please include your unique and specific Python Flask experience in your proposal. Thanks

    $21 / hr (Avg Bid)
    $21 / hr Oferta promedio
    20 ofertas

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