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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    Looking for web developer 6 дней(-я) left
    ПОДТВЕРЖДЕН

    Hi all, I'm looking for a web developer. who can sort out the issue with emails. as they are not getting delivered to the users the email provider is Hostinger. Also, there are a few other fixes on the website that needs to be fixed.

    $133 (Avg Bid)
    $133 Ср. заявка
    24 заявок(-ки)
    Urgent requirement of Magento1 specialist 6 дней(-я) left
    ПОДТВЕРЖДЕН

    I am in urgent requirement of a highly experienced Magento1 developer for one of my client. Magento1 developer should posses the following skills - 1- Must have at least 4+ years of experience with Magento1 2- Can communicate properly. 3- Must have great skills in custom module development and analyzing and utilizing the existing code of the magento1 site. 4- Should posses great skills in both Front-end and Backend. 5- Can provide recommendations and suggestions. 6- Should meet the deadlines and should be cost effective. Project will be only on fixed cost. More details will be shared once I find the suitable candidates.

    $821 (Avg Bid)
    $821 Ср. заявка
    29 заявок(-ки)

    Front end - Flutter for ios and android Backend - require fully customisable admin panel to manage the in app functionalities in detail. Web dev : users should be able to check the basic stats , reports , etc as seen in their app. Mobile app details: Complex mobile application with following functionalities Multiple API integration for voice , chat and video Custom API development Proper database management Our wireframe is under development, approximately 200 screens in total The app will cater to following features hospital and clinic management app with access to multiple people (user type for various levels os workers with variable levels of access) - this will have appointment , inventory, finances , employee management, patient management, analytics and interlinking with o...

    $2978 (Avg Bid)
    $2978 Ср. заявка
    63 заявок(-ки)
    Quick & Easy iOS Dating App 6 дней(-я) left
    ПОДТВЕРЖДЕН

    Build me one match per day iOS dating app (see attachment). This is most simple dating app ever designed. I have a Figma of front end screens already too. I will pay you $500 for two weeks delivery. Please only contact me if you have built a dating app before. I will release milestone in full when you are done in two weeks. Simple and easy! NEED: - Front End (UI/UX Design) - Back-End (Admin) - Back-End (All Logic + APIs + Matchmaking Algorithm)

    $855 (Avg Bid)
    $855 Ср. заявка
    68 заявок(-ки)
    Build simple iOS Dating App 6 дней(-я) left
    ПОДТВЕРЖДЕН

    I need an expert developer and programmer to build simple iOS dating app. You need to be able to do both front-end UX/UI and all backend logic and admin panel. I also need help submitting final version to iOS App Store when complete to make sure my app gets accepted and has correct code which does not violate any rules. Dating App Concept: Users get set up with one new match every day. There is no swiping. There are no geo-location features. I do not want copy of existing dating app apk. 1. Need Front-End UI/UX design (based on Figma) 2. Need Back-End Admin Panel (web panel) 3. Need basic features logic and matchmaking algorithm (I already have formula) Front End: 1. HOME: Match of the Day Profile Screen 2. Chat Screen 3. Chat Menu 4. My Profile 5. Edit My Profile 6. Settings 7. Log-I...

    $1172 (Avg Bid)
    $1172 Ср. заявка
    44 заявок(-ки)
    Build backend and modules for SmartHR themeforest template 6 дней(-я) left
    ПОДТВЕРЖДЕН

    We are looking to build the backend and modules for the template we purchased on Themeforest. We are looking for a Human Resources panel for the Company Owners and Employees. Employees will have all their personal info about employment, Emergency contact, Pay rate, Pay slips, Daily Attendance with IP tracking when they start for the day and end the day on the specific project. End of the week, employees can click a button on their weekly hours, and it will generate an invoice and email it to the owner. Employees cannot manually edit hours. We also need a section on the owner panel and employee panel for Time/Material slips and Change Orders On the time and material section for a project, employee can enter what they did with photos and the hours it took and the material used, it will...

    $648 (Avg Bid)
    $648 Ср. заявка
    53 заявок(-ки)

    Need a Pro Laravel , Fullstack, front, backend , Script Dev. To fix , Custmize Vcard script. Making it more user frendly. Pay $75

    $58 (Avg Bid)
    $58 Ср. заявка
    36 заявок(-ки)

    Need a Laravel, frontend, backend , fullstack, Script Dev to costomize/fix a store on a script Pay $90...

    $72 (Avg Bid)
    $72 Ср. заявка
    34 заявок(-ки)

    Need a pro Laravel, Fullstack, front, backend script Dev to fix script translation problem Pay $40 ..

    $125 (Avg Bid)
    $125 Ср. заявка
    33 заявок(-ки)
    build me a website 6 дней(-я) left

    We are making website to sell various kind of shirts or t shirts in which some part of meta verse is included

    $879 (Avg Bid)
    $879 Ср. заявка
    42 заявок(-ки)

    مرحبا مطلوب مبرمج لارفل لمشروع متاجر متعدده ارجو ارفاق نماذج من اعمالك تحياتي

    $2154 (Avg Bid)
    $2154 Ср. заявка
    93 заявок(-ки)

    We have ongoing casual work for a freelance game developer who is proficient with Unity. Our business builds Unity games that are used at corporate events to bring brands and products to life, activate sponsorships or just entertain an audience. Typically games are played on large format commercial touchscreens. We have a library of existing games that often need to be re-skinned and re-branded (e.g. changing colour schemes, fonts, logos etc), but also build new concepts for customers. Depending on the level of proficiency, there will be opportunities to do both. This is casual work, as our requirements change from month to month. Would probably suit a relatively junior Unity developer (you'll receive support) - perhaps just left Uni or in a final year. Or someone more ...

    $27 / hr (Avg Bid)
    Местный
    $27 / hr Ср. заявка
    19 заявок(-ки)
    Looking for experience Backend Developer 5 дней(-я) left
    ПОДТВЕРЖДЕН

    We are looking for experience backend developer who can fixes the bugs in admin and app. Project is built using typescript+moongoose Apply only if you have experience in travel industry software This is flight booking app (Currently domestic)

    $345 (Avg Bid)
    $345 Ср. заявка
    33 заявок(-ки)
    Simple Dating App (iOS) 5 дней(-я) left
    ПОДТВЕРЖДЕН

    I need an expert developer and programmer to build simple iOS dating app. You need to be able to do both front-end UX/UI and all backend logic and admin panel. I also need help submitting final version to iOS App Store when complete to make sure my app gets accepted and has correct code which does not violate any rules. Dating App Concept: Users get set up with one new match every day. There is no swiping. There are no geo-location features. 1. Need Front-End UI/UX design (based on Figma) 2. Need Back-End Admin Panel 3. Need basic features logic and matchmaking algorithm (I already have formula) Front End: 1. HOME: Match of the Day Profile Screen 2. Chat Screen 3. Chat Menu 4. My Profile 5. Edit My Profile 6. Settings 7. Log-In 8. New Member Application Screens** 9. Membership Accepta...

    $780 (Avg Bid)
    $780 Ср. заявка
    109 заявок(-ки)

    Se tiene un mapa con información de cobertura de red realizado en my maps de Google. Se requiere el desarrollo de un buscador interactivo sobre el mapa. Donde el usuario introduzca una dirección de domicilio y el mapa muestre en pantalla la ubicación de la dirección proporcionada y le muestre si se tiene cobertura en la dirección proporcionada. La información debe ser mostrada en un recuadro sobre la ubicación en el mapa mostrando lo siguiente: Tu domicilio ubicado en: [DOMICILIO DE USUARIO] cuenta con cobertura por medio de: [TIPO DE SERVICIO OFRECIDO EN LA ZONA] ¡Contrata ahora! (Botón que lleve a contratar) y lleve al apartado de información de contratación.

    $349 (Avg Bid)
    $349 Ср. заявка
    20 заявок(-ки)
    Project JavaScript 5 дней(-я) left

    I need to a app developer that is experienced in that can code the backend and frontend of app.

    $389 (Avg Bid)
    $389 Ср. заявка
    87 заявок(-ки)
    React application - with discord automation 5 дней(-я) left
    ПОДТВЕРЖДЕН

    I have the application design ready The app has - to collect information from front end request, interact with discord and post automated announcements, raffles and post winners discord ids back to the front end - to collect information from front end request, interact with discord and post automated announcements, raffles etc; collect the winners discord ids and send to another discord server B- auto assign roles to winners who join server B Will share detailed requirements later.

    $345 (Avg Bid)
    $345 Ср. заявка
    13 заявок(-ки)
    Backend Developer Full Time / Freelancer 5 дней(-я) left
    ПОДТВЕРЖДЕН

    Work with us full time 40h a week, collaborating with the team on video calls. Experience in: - Architecture - AWS Services - Lambda - Pipelines - Database design - Rest APIs - SLAs - Security

    $21 / hr (Avg Bid)
    $21 / hr Ср. заявка
    86 заявок(-ки)

    JOB REQUIREMENT * Require a minimum of 3 years of experience with Node.js * Require experience with LoopBack framework. Experience with LoopBack 4 is a plus. * Require relevant knowledge of database systems such as MySQL, and MongoDB. * Require experience with Unit Testing (Jest) and Extreme Programming methodologies such as Test-Driven Development, Refactoring, and Continuous Integration. * Require experience with Service Oriented Architecture * Require experience with web technologies such as REST API, security, performance, etc. * Require experience with CI/CD. * Require Git, GitHub, and Pull Request knowledge. * Experience with Agile Process and Scrum Methodologies.

    $13 / hr (Avg Bid)
    $13 / hr Ср. заявка
    83 заявок(-ки)
    Web back-end developer -- 2 3 дней(-я) left

    Develop, together with the front-end developer, the back-end of a shopfront. Based on Angular with react components. Please read attached document. Freelance position is hybrid/remote. Freelancer will need to come to our offices at agreed times, so they have to be Gauteng based.

    $19 / hr (Avg Bid)
    Местный
    $19 / hr Ср. заявка
    32 заявок(-ки)

    $50-$75 target Help me code and debug the correct search logic for a elearning website. The teacher uploads a 20 minute video, they clip a 3 minute portion from it and add title, description, price and add 5 level MICROCATEGORIES - based on the microcategories, learners can search clips on the website and find them fast and easy using microcategorization. Top left button on home page - Microcategories search - this is where the learners go to find hyper targeted microcategories. The liogic is for each tier they select, the topic becomes more and more precise and narrow. The search results return the selected microcategories. For each level selected, the children are populated in the search results also. Multiple categories can be selected in each level, resulting in the th th th th c...

    $146 (Avg Bid)
    $146 Ср. заявка
    21 заявок(-ки)

    I'm looking for an experienced Ruby on Rails Expert to help me update my project. My previous developer is no longer available, and I'm unable to run the project as it is. I need someone who can help me get the project running again and make updates according to my ideas. To prove your expertise in Ruby on Rails, please include a link to a sample project you've worked on in your proposal.

    $32 / hr (Avg Bid)
    $32 / hr Ср. заявка
    38 заявок(-ки)

    Buenos dias, REQUISITOS : CONOCIMIENTO DEL MERCADO INMOBILIARIO ESPANOL + DEL OPEN DATA ESPANA + SABE FRANCES Estoy buscando a un desarrollador full stack para el diseno de una plataforma web (SaaS) de agregacion de anuncions inmobilarios desde las paginas mas conocidas (idealista, fotocasa, mil anuncios, etc.) para la inversion (para alquiler o comprar, reformar, vender). Los anuncios deben aparecer segun varios criterios que vas a indicar, - y que puedes modificar: tamano de la ciudad, rentabilidad minima, precio/m², tipologia de vivienda, etc. El agregador permite recopilar los anuncions (quitando los duplicados), y te proporciona un analisis de rentabilidad de la inversion y de otros indicadores. Cuando identifiques un anuncio que te interesa, vas a poder tener una analisi...

    $2396 (Avg Bid)
    $2396 Ср. заявка
    22 заявок(-ки)

    Migrate our WhatsApp accounts with BSP (360Dialog) to Whatsapp Business Cloud API successfully. We are facing problem that after successfully migrating to cloud API, we are not able to access the messages api due to lack of permissions. If you have done this before then only go ahead with this project.

    $28 (Avg Bid)
    $28 Ср. заявка
    4 заявок(-ки)
    Need a experienced backend developer -- 2 2 дней(-я) left
    ПОДТВЕРЖДЕН

    Experienced backend deveoloper is required for the backend and person having minimum more than 5 year of experience is preferable Small changes are reuired in backend without altering the existing working of the app

    $111 (Avg Bid)
    $111 Ср. заявка
    17 заявок(-ки)
    Build a Virtual Trading Website 2 дней(-я) left
    ПОДТВЕРЖДЕН

    Looking for experienced full-stack developers to build a virtual trading website. On this website, people can sign up and buy/sell shares, and experience real-life simulations of investing and trading without spending any money. Please read the attached document to know more. - Project will be for 4-6 months but if it works out, we will have several other projects in the pipeline - Extensive experience in backend development, integration, performance, and scaling - Must have developed large-scale applications - Prior experience in the FinTech industry would be preferred

    $21669 (Avg Bid)
    $21669 Ср. заявка
    25 заявок(-ки)
    Backend developer required - Nest.js/Node.js 1 день left
    ПОДТВЕРЖДЕН

    We are seeking a highly skilled backend developer to join our team for a short-term project. The ideal candidate will have a strong background in developing and maintaining web applications using and Node.js. Responsibilities: Develop and maintain web applications using and other related technologies Write clean, modular, and maintainable code Collaborate with the team to identify and solve complex problems Implement and test new features and functionality Troubleshoot and debug issues as they arise Keep up-to-date with the latest developments in and related technologies Qualifications: Strong experience with and TypeScript Experience with Node.js and Strong understanding of web application development and architecture Experience with MongoDB or other NoSQL databases Experience wi...

    $6 / hr (Avg Bid)
    $6 / hr Ср. заявка
    20 заявок(-ки)
    uber community app -- 3 1 день left
    ПОДТВЕРЖДЕН

    we are making a app for a specific company where lets say 100 people work and out of which 30 people have cars,So the people who have cars will tell others that we are going from this way. While others who need ride can let them know and can divide the fare or the cost

    $225 (Avg Bid)
    $225 Ср. заявка
    16 заявок(-ки)
    Backend of website/ website development/ lead generation site 13 часов(-а) left
    ПОДТВЕРЖДЕН

    This is my competitor and I want to make a website kind of thing this one. So this is a good example of what I'd like to do. I have taken screen shots of the 9 pages of back end for the users/ customers that would sign up for this lead generation service. Obviously I can't see the admin backend of the site but I will need that built also. Network cabling directory has one website but lots of different cities for example. I would like to do this a very different way. I have 144 domain names total. But each domain name matches a ranking keyword that already ranks on google for example but then we still have all the cities for example this method should be a much more efficient way of driving traffic. Here is a website that I have built myself with one of the domain nam...

    $816 (Avg Bid)
    Соглашение о неразглашении
    $816 Ср. заявка
    29 заявок(-ки)
    THE MAZE CHALLENGE 12 часов(-а) left
    ПОДТВЕРЖДЕН

    ------------------ There is an API where you can: - Generate mazes. - Start a game inside a previously generated maze. - Inside a game, move around the maze until you reach the end of the maze. (see for more info about the API) In this test you have to choose one of two options. - Make a console app where automatically (without user interaction): - creates a maze of 25x25 - starts a game - send movements to reach the end of the maze with some kind of clever algorithm. OR - Make a user interface where the user can: - generate a new maze, - start a game inside the maze - move around the maze using some kind of controls - Graph some kind of map conform you are advancing in the maze. There is no restriction about the tools and libraries in case you need one. Good lu...

    $9 / hr (Avg Bid)
    $9 / hr Ср. заявка
    8 заявок(-ки)

    Ideal si tiene experiencia en web/app development en el sector de educacion, medicina y/o recursos humanos (HR) Busco alguien con disponibilidad a largo plazo Esta persona tambien ayudara con tareas de diseno grafico, edicion de video, coordinando tareas con el resto del equipo de programadores y ocasionalmente con tareas secretariales Ideal si tiene un nivel de ingles intermedio. Minimo tener un nivel de ingles basico Flexible con los horarios de trabajo (7am-11pm en hora local de America Latina) 10-15 horas de trabajo por semana

    $1 - $6 / hr
    Скрытый Соглашение о неразглашении
    $1 - $6 / hr
    9 заявок(-ки)
    Tutor System Заканчивающийся left

    We want to build a website which will be having 3 login options for admin, tutors and students respectively. Admin will be having administrative options. Tutors and students will have to create an account by signing up and then they can login to the portal. Tutors will have to give details about their qualifications and skills and will have to upload relevant documents as proof/validation. Students will create their account by giving basic details such as name, number and email id etc. After creating account and logging in students will have a page where they can search for the teachers as per their requirement and here the students will give their preferred budget which will play the key role in showing the list of available tutors to them. Then students can explore the options and they c...

    $215 (Avg Bid)
    $215 Ср. заявка
    7 заявок(-ки)
    Explicit Filtering Phase -- 2 Завершено left
    ПОДТВЕРЖДЕН

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

    $470 (Avg Bid)
    $470 Ср. заявка
    29 заявок(-ки)
    Web stresser / booter source Завершено left

    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)

    $223 (Avg Bid)
    $223 Ср. заявка
    11 заявок(-ки)

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