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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    27 jobs found, pricing in USD

    In need of a specialist to run DDOS attacks on our website in order to evaluate server vulnerability.

    $180 (Avg Bid)
    $180 Avg Bid
    14 bids
    Salespitch CRM 6 days left

    I am Looking for Android Mobile App to get developed from which a User can log in with their Credential and have an inbuilt dialer for calling via sim or from the cloud, can manage their call logs and dispose them into right and future activity can add reminders, followups-required all CRM Features, able to do call recordings, export and import data and reports

    $7 - $18
    $7 - $18
    0 bids

    PLZ! PLZ! Only real Bids NOT SCAMMER (scammer will report), we are development a jobsite, to finish it, we are looking for a programmer (Full-stack) expert in vue3. Our website: - A website simple but profesional - Frontend (vue3[composition api]+vite+ts+pinia+vuetify) - Backend(MEN+ JWT+ RSS, Fetch api with jobs) Web development time 5-7 days. Plz read milestone archive. Desirable Skills: Ideally full stack dev, Framework (Vuejs), Full Rest Api, Payments Stripe. We are looking too for people who are committed, eager to undertake, and with long-term work . This is a project with great potential and with possibilities to continue developing the freelance is require/obligatory to send Daily reports for working and push request. Payment will met after push request each 2 days and miles...

    $168 (Avg Bid)
    $168 Avg Bid
    18 bids
    Automation in python (Reddit) 6 days left
    VERIFIED

    Hello, I need to make 2 scripts to automate tasks with the praw library in my SubReddits. In brief: Script1: Copy title + link from a list of subreddits (Source) and publish them in another list (Destination). Script2: Take each of the posts published in the list (Destination) And crosspost to a new list of SubReddits. If you have worked with the Reddit API you will understand quickly when I send you the exact details. Please if you don't have experience with Reddit API don't bid. I've wasted a lot of time with people who don't know how to handle it. Complete details will be sent to interested persons.

    $122 (Avg Bid)
    $122 Avg Bid
    14 bids

    We need a React Developer who can build us a module named "JOB CARD" for an ongoing carwash CRM software based on React. He/she should be able to integrate the firebase database with the current code of our React Project [code provided via github]. Project timeline 3-4 days max. The Data schema+module flow is attached to this project. The project budget would range around - Rs.3000 - Rs.7000

    $84 (Avg Bid)
    $84 Avg Bid
    11 bids

    We need a staking platform that does this User visits site > Connects Phantom > Registers account on platform that's stored via wallet > User can stake nft > user stakes coins that acts as facticious points (non spl) > user can spend coins on vendor >> vendor gives items >> items have utility

    $3037 (Avg Bid)
    $3037 Avg Bid
    92 bids

    We are looking for full stack NextJS expert developer with Knowledge to build full dynamic website, full dashboard control, and a fully responsive frontend with EN/CH (LTR), and Arabic (RTL). Dark/light mode. Fully SEO friendly (performance, and meta tags for page, images etc..._ NOTE: Nothing should be predefined, fully custom content (URLs, image, icons, text, tags). Each language must be treated separately, nothing is shared between languages (content,icons,text,images etc...) 13pages, you can take a general idea of the website: 30days - 500$ (Last Price).

    $503 (Avg Bid)
    $503 Avg Bid
    21 bids

    We are looking for a senior .NET Core backend engineer who can help us build the next generation of medical service software. We're migrating the previous version into a newer version with new user interfaces and workflow, also integrating microservice-based 3rd party medical engines into our software. Deep knowledge of medical service data transfer rules would be a big plus. The 3rd party engine uses Java so the candidate needs to have experience in Core Java and relevant java technologies. This is a very long-term ongoing position that can be turned into an employee's position.

    $21 / hr (Avg Bid)
    $21 / hr Avg Bid
    59 bids
    Cloudflare Expert 3 days left
    VERIFIED

    We have a website that is preparing to launch a range of landing pages to collect market insights. Our team is familiar with CloudFlare, but we are looking to supercharge our efforts. This job is based on being able to setup our Cloudflare settings/backend in a way that ensures we are hitting the fastest first to paint times. Additional knowledge in Cloudflare workers is very important on this project. Finally, for those who are chosen, there is an opportunity for long term speed and optimisation collaboration. P.S- We are an experienced development/engineering team, so if you are an entry to mid level CloudFlare developer please do not respond to this project as we will find flaws in your approach very quickly. This project is only for high level experts and masters in CloudFlare/bac...

    $22 / hr (Avg Bid)
    $22 / hr Avg Bid
    28 bids

    Hello, I need to make 2 scripts to automate tasks with the praw library in my SubReddits. In brief: Script1: Copy title + link from a list of subreddits (Source) and publish them in another list (Destination). Script2: Take each of the posts published in the list (Destination) And crosspost to a new list of SubReddits. If you have worked with the Reddit API you will understand quickly when I send you the exact details. Please if you don't have experience with Reddit API don't bid. I've wasted a lot of time with people who don't know how to handle it. If you have experience with praw library please write me and I will give you full details of the project.

    $100 (Avg Bid)
    $100 Avg Bid
    24 bids

    Greetings, i am looking for someone who have 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 i 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, who don't need the google account any longer and can transfer ownership to me. thanks in advance && happy bidding best regards

    $10 - $100
    Sealed
    $10 - $100
    5 bids

    We are creating an app for thrifting, donating and swapping secondhand clothes. We need an android backend developer with a decent experience, reliable and someone open for collaborating.

    $1068 (Avg Bid)
    $1068 Avg Bid
    66 bids

    I want to add a payment gateway into my business website. Please refer below two links:

    $1165 (Avg Bid)
    $1165 Avg Bid
    67 bids

    This job requires little to no coding, and is mainly easy and straightforward. I have tasks that need to be done tonight. I will give all the resources and instructions needed to execute each task swiftly and easily. Only apply if you can start tonight. It should only take a few hours, but I will pay for 4 hours. The overview of this project is displayed down below, but once I pick your proposal, we will call to go over the project in detail before we start. This job includes two parts: the first part being that you take my supplier FTP product catalog files(which come in CVS or Text) and upload them to a free image content software provider called Icecat catalog, which will sync all the images connected to the file. Once you're done, we will upload it to my Dropship software that ...

    $42 (Avg Bid)
    $42 Avg Bid
    12 bids
    Backend Development- Shopify 2 days left
    VERIFIED

    This job requires little to no coding, and is mainly easy and straightforward. I have tasks that need to be done tonight. I will give all the resources and instructions needed to execute each task swiftly and easily. Only apply if you can start tonight. It should only take a few hours, but I will pay for 4 hours. The overview of this project is displayed down below, but once I pick your proposal, we will call to go over the project in detail before we start. This job includes two parts: the first part being that you take my supplier FTP product catalog files(which come in CVS or Text) and upload them to a free image content software provider called Icecat catalog, which will sync all the images connected to the file. Once you're done, we will upload it to my Dropship software that ...

    $25 (Avg Bid)
    $25 Avg Bid
    11 bids

    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.

    $101 (Avg Bid)
    $101 Avg Bid
    15 bids
    Dynamic Nextjs Website 1 day left
    VERIFIED

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

    $515 (Avg Bid)
    $515 Avg Bid
    50 bids

    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...

    $228 (Avg Bid)
    $228 Avg Bid
    45 bids

    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)

    $154 - $460
    Sealed
    $154 - $460
    17 bids

    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)

    $49 (Avg Bid)
    $49 Avg Bid
    10 bids

    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 Avg Bid
    29 bids
    Nomad freelance 18 hours 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.

    $27 / hr (Avg Bid)
    $27 / hr Avg Bid
    47 bids
    gupshup api expert 10 hours left
    VERIFIED

    Hello i need and expert with gupshup api php

    $40 (Avg Bid)
    $40 Avg Bid
    22 bids
    Long term Woocommerce expert 9 hours left
    VERIFIED

    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...

    $172 (Avg Bid)
    $172 Avg Bid
    73 bids

    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

    $1320 (Avg Bid)
    $1320 Avg Bid
    66 bids

    Hola, busco programador en Python, que ya esté familiarizado con Automatizaciones en Reddit para crear scripts. Si no tienes experiencia en la plataforma no ofertes.

    $78 (Avg Bid)
    $78 Avg Bid
    10 bids

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