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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    Message me then I will let you know about the project and provide you with the complete resources to be used and you will be using Java, JSP, AJAX, JQuery, MySQL For the web application and no other language or framework. only the logic is need to be implemented, no design and front-end.

    $97 (Avg Bid)
    $97 Oferta medie
    6 oferte
    Dynamic Nextjs Website 6 zile left
    VERIFICAT

    We are looking for Nextjs Expert to handle the following project: The budget is 600$

    $505 (Avg Bid)
    $505 Oferta medie
    47 oferte

    Technology to be used: ===================================== - WordPress - miniOrange 2FA () - MetaBox () - AJAX - JS or jQuery Requirements: ===================================== fully working login / register / lost PW process: login-modal (Ajax): - login form in a modal on any page/post (no redirect after login) - brute force protection to be integrated - Google Captcha v3 to be integrated - custom login form will be rendered within an Ajax request (tippy tooltip = ) - login options: -- login prompt with email + PW + miniOrange 2FA (WhatsApp or any Authenticator) -- login with LinkedIn (important: if first login with LinkedIn check SMS in addition) -- register as new user - if wrong: show error-message and lost password button - if OK: change CSS value on menu item (but stay on the s...

    $190 (Avg Bid)
    $190 Oferta medie
    33 oferte

    Hello, We are looking for a senior-level full-stack web engineer with experience in .NET Core and Java who can join us and help with building a large platform. English needs to be at an advanced level and any experience in leading a small team of developers would be a big plus. I look forward to seeing your proposal. Thank you

    $21 / hr (Avg Bid)
    $21 / hr Oferta medie
    58 oferte

    1. Graphics Design - layout 2. ERP Design and Implementation - Frontend and Backend Both ERP for Interior Design Manufacturing where All the Manual Process need to be translate to Online ERP System. Fully Functional Employee Management - All the employee of the company with specific designated roles , like sales , BD , designer Team Management - team is group of Employee clubbed together Team Allocation to Projects / Clients Department Management Designation Management Client Management Project Management Task Allocation Task Assignment + Management (status update and notification etc)

    $153 - $459
    Sigilat
    $153 - $459
    13 oferte

    Below i mentioned current live website URL and also i mentioned what changes i need to change Website URL : Changes to change attribute type while ordering product like actully what in current version customer should be select all attribute after that only they can able to place order - but i actully what i need if customer select single attribute also there display variation amount and customer able to place order (if you have doubts ping me i ll clear with sample) the final checkout page there's option for timeslot now there's no extra price amount added for that time but i need to change if customer choose some time extra amount need to be add need to fix small bugs Actully i have lots of projects so excepted reasonble rate (Tamil peoples most welcome)

    $45 (Avg Bid)
    $45 Oferta medie
    8 oferte
    listener php for API messaging 6 zile left
    VERIFICAT

    I need a new listener php file for incoming API messaging because mine is not working well. More details on chat.

    $36 (Avg Bid)
    $36 Oferta medie
    28 oferte
    Nomad freelance 5 zile left

    We are building tech and network for facilitating a job trade without the need for third parties - by imposing trust in recruitment, removing organizational overhead, and enabling free internal trade - in a decentralized manner.

    $26 / hr (Avg Bid)
    $26 / hr Oferta medie
    47 oferte
    gupshup api expert 5 zile left
    VERIFICAT

    Hello i need and expert with gupshup api php

    $40 (Avg Bid)
    $40 Oferta medie
    22 oferte
    Long term Woocommerce expert 5 zile left
    VERIFICAT

    We are based in Europe and run a new startet Woocommerce store. We have ambitions to take the site on next level. But we need a good and long term permanent Woocommerce expert/developer with experience especially in E-commerce store. Need to be honest and most important independent, and are able to see out of the box by self! The site is up and live, we have around 250 products on the website right now. So it is not complicated for the developer, because there is only small task in pipeline to improve. 50 usd fix monthly fee MAIN TASK: - Experience with speed optimization (High skills) -    Website Security (High skills need) -     API integration - Design skills - UX skills to do the site more user friendly - Experience with plugins - Expe...

    $167 (Avg Bid)
    $167 Oferta medie
    71 oferte
    C#/.NET Core & Java Developer 5 zile left
    VERIFICAT

    Hello, We are looking for a senior-level full-stack web engineer with experience in .NET Core and Java who can join us and help with building a large platform. English needs to be at an advanced level and any experience in leading a small team of developers would be a big plus. I look forward to seeing your proposal. Thank you

    $22 / hr (Avg Bid)
    $22 / hr Oferta medie
    78 oferte

    Looking for someone to create the code/backend to a profit/loss tracker for Solana. The platform would allow user to log in with their Phantom wallet and see their profit/loss on all trades made on that account. I have the UI kits ready but need all the coding, please have experience

    $1314 (Avg Bid)
    $1314 Oferta medie
    66 oferte

    I'm looking for senior PHP developer (upto 10 freelancers) having sound knowledge of backend development (PHP, Laravel, CodeIgniter, API implementation, Payment gateway integration, etc). Please bid if you are available for long term Full Time position. Please start your proposal with the word "success" and share your past projects Looking forward to working with you

    $523 (Avg Bid)
    $523 Oferta medie
    54 oferte

    I have an Android and iOS app that tracks an user steps with Google Fit / Apple Health API, and it rewards the user with a coin based on the number of steps the user has gotten. It also uses a backend simple program to get and publish certain data to the app. I need to add functionality to both apps (the Android and the iOS version). I need to add an option to pick a sport (from a list that the app should show), and let the user start and stop a timer. When the user stops the timer, and based on the sport the user had chosen, it will give him a number of coins. Please, have in mind that this is a very simple project, and I'll have an appropriate maximum budget.

    $214 (Avg Bid)
    $214 Oferta medie
    45 oferte
    Photographer website 4 zile left
    VERIFICAT

    I'm a professional photographer: I need to develop my new website portfolio. I will provide the designs. The design of the website is minimal and bold, but I will have to publish lot of galleries with images, so I need something extremely functional and fast (maybe with a back office?) No time wasters.

    $187 (Avg Bid)
    $187 Oferta medie
    154 oferte

    we required a nodeJS backend developer for dynamic pages and Dash board for

    $32 (Avg Bid)
    $32 Oferta medie
    7 oferte

    The aim of this task is to get via postman every time I click send, the cookie and authorisation and paste it in heather's tab in key and value. Now I manually get the cookie and authorisation in the network tab under inspection in the browser. Why? because it changes every time i login into the URL. Note: Job will be done remotely connected to my laptop.

    $12 (Avg Bid)
    $12 Oferta medie
    12 oferte

    We are looking to hire a part-time Python Django developer having 4+ years exp in the long run. Our website Share your portfolio. We will like to interview over the google meet.

    $344 (Avg Bid)
    $344 Oferta medie
    17 oferte
    .net core 3 zile left
    VERIFICAT

    Some one to help me in add and retrieve the attachments , and some other points in .net core . (Arabic language )

    $28 / hr (Avg Bid)
    $28 / hr Oferta medie
    74 oferte

    I want to integrate into my system a webscraper interface, whereby my customers determine what to scrape (usually their own website). They don't need to be running scrapes or seeing the data, but they should set up 'what to scrape', and then we take it from there. If you have suggestions or white label software i'm also open to that. Hope that makes sense! Thanks.

    $47 / hr (Avg Bid)
    $47 / hr Oferta medie
    55 oferte

    I need more than 5 years experience blockchain developer that can do backend and integrated smart contact to the site. I need the site to be similar to . I already have react project website design done as what you need to do is to create backend and integrated smart contract. My site is , so you need to continue develop from this point.

    $1569 (Avg Bid)
    $1569 Oferta medie
    89 oferte
    Web developer 2 zile left

    Project-based web developer needed

    $2 / hr (Avg Bid)
    $2 / hr Oferta medie
    13 oferte

    I need a website with payment options.

    $294 (Avg Bid)
    $294 Oferta medie
    20 oferte

    Google maps Services. GPS Tracking, live locations. QR Code Scanner. Security. Payment. Customers Service Chat. Notifications. Ex: "Marti" App

    $1252 (Avg Bid)
    $1252 Oferta medie
    63 oferte

    4 numbering lucky draw system, lucky number feeds through the mobile app, we have different lucky draw numbering system, A,B,C,D - Default Format, all feeds need time stamps and manual time configuration. Example (Morning 06:00 AM to Evening 2.30 PM). Output of total the total user input feed export as a excel sheet from the admin panel login. once backup-ed the data we can clear the database.

    $266 (Avg Bid)
    $266 Oferta medie
    10 oferte

    Dear freelancer, i need a Venue booking app, for such as meeting rooms, sport Venues, swimming pools and anything related. requirements: - design and development full solution. -user IOS and android. (flutter/ react) frontend - provider app - owner backend panel + app. features are: search by venue/ activity. selecting time and date, kindly if you did such project before include a demo or screenshots of the app you made.

    $2651 (Avg Bid)
    $2651 Oferta medie
    159 oferte

    The code would be developed in Javascript/typescript to read stock data from the market and then put buy or sell orders based on strategies.

    $7 / hr (Avg Bid)
    $7 / hr Oferta medie
    16 oferte
    Gaming Website Backend 1 zi left
    VERIFICAT

    ill send description in depth but the overall gist of the project is to do a backend that allow users to search for matches and report the outcomes of the match.

    $1105 (Avg Bid)
    $1105 Oferta medie
    85 oferte

    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 need someone to fix a current OTP issue and correct it with current DLT platform requirements. 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.

    $122 (Avg Bid)
    $122 Oferta medie
    24 oferte

    Greetings, i am looking for someone who has verified their google app (/project) in console.cloud.google.com. The app/project must have following scopes: if you know what you are reading then it think that's enough to explain what i am looking for.. 1. Priority will be given whom project has more scope verified 2. Priority will be given to whom don't need the google account any longer and can transfer ownership to me. thanks in advance && happy bidding best regards

    $10 - $100
    Sigilat
    $10 - $100
    3 oferte
    eComLovers.com 20 ore left

    Olá! Tudo bem? Somos uma Startup de Recrutamento e Seleção com banco de talentos. Hoje eu tenho um site: Este site foi um MVP que deu certo para o meu negócio. Ele foi feito em Wordpress + Google Workspace (Planilhas + Forms). Agora, eu preciso que este projeto evolua! Estou a procura de alguém que consiga transformar este site em um appweb com cadastro de usuário, para que cada cliente (usuário) consiga subir o seu perfil e habilidades (que hoje ele sobe via google forms), consiga também atualizar o seu perfil quando quiser (como no linkedin). Em tópicos o projeto se resume a isto: - Front (app web) para cadastro do perfil. Tipo linkedin profile mas com o estilo/UI do meu site atual, com corações e apenas p...

    $191 (Avg Bid)
    $191 Oferta medie
    14 oferte

    We need a mobile application that will be written in Flutter or another hybrid language. We will apply some css codes to the application that needs good css knowledge. We can work together in the backend depending on the situation.

    $558 (Avg Bid)
    $558 Oferta medie
    75 oferte

    Flutter veya baska bir hybrid dil ile yazilacak mobil uygulamaya ihtiyacimiz var css bilgisinin iyi olmasi gerekli uygulamaya bazi css kodlari uygulayacagiz . duruma gore backend icinde beraber calisabiliriz .

    $422 (Avg Bid)
    $422 Oferta medie
    18 oferte

    A game that we wish to launch through a personal website Website needs: + Everything built from scratch (no Wordpress etc.) and optimized for speed + Signup (confirmation code on email) and Login system for clients, allowing for PayPal transactions + Multi-layer avatar creation + Responsiveness, screen rotation + The application should be created as microservices to be easily scaled Details: + Full website specifications are ready to be provided after signing an NDA + We provide the design as icons, photos and mockups + No requirement on the backend and frontend programming language. Deadline: 15th November Proposal: + Please submit proposal only if you know that you can start as soon as possible, as the deadline is hard + When submitting a proposal, show us a portofolio with your wor...

    $1310 (Avg Bid)
    $1310 Oferta medie
    68 oferte
    $11720 Oferta medie
    35 oferte

    We want to build a Shopify App that integrates a Shopify Store with our service. Full briefing attached.

    $2319 (Avg Bid)
    $2319 Oferta medie
    74 oferte

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