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Full-Stack developer needed for offline capable web-app design/deployment to collect data and photos

$250-750 USD

Completed
Posted almost 3 years ago

$250-750 USD

Paid on delivery
I am using a PHP/MySQL backend and need help developing several web-apps. To start with, it will specifically be accessed over mobile and will require offline storage of photos and data and synchronization once internet is available. Planning on using the IndexedDB browser API to store as blob. Will require interoperability with Android and iPhone. To be "installed" as a desktop app (manifest). User will be prompted to log in (requires network connection for initial setup) and once authenticated against the database, the device will remain authenticated long-term. User then enters some data in a basic form, including some dropdown/select items and some fill-in-the-blank items, and takes some photos with the camera built into the device. All this data is first stored locally (app must request persistent storage as this data is critical) and then an attempt to post it to the server is made. If the data is not successfully posted, it remains in "draft" mode until it is successfully uploaded. Once uploaded and confirmed, the local content can be purged to free up space for another project. A basic backend interface will also be developed (in PHP) to lookup/display the submitted projects and related content. Two other projects may follow if this one is successful (one relates to scheduling/tracking and the other to accounting). Possibly opportunity for public website facelift too.
Project ID: 30620307

About the project

52 proposals
Remote project
Active 3 yrs ago

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Hello, Barton. How are you? I have read your description and it's interesting to me. I am a professional full stack developer with 7+ years of experience and I can help you. I have already done the project similar that saves data in indexDB when offline and as soon as the state changes online, it i.e, cache operates all operations done before online. I think I could be the right person on your project. Looking forward to hearing from you. Thank you. Ramazan.
$500 USD in 7 days
5.0 (20 reviews)
5.4
5.4
52 freelancers are bidding on average $592 USD for this job
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Hello, I have seen your requirements of Full-Stack developer needed for offline capable web-app design/deployment to collect data and photos, we have done similar project before, also having 50+ team and 8+ years of experience, come to the chat will discuss more over chat...
$450 USD in 7 days
4.7 (675 reviews)
8.8
8.8
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Hello, Hope you're doing well. We are a 10 year old IT company with highly skilled designers and developers to work on : PHP, MYSQL, HTML, MOBILE APP DEVELOPMENT, JAVA SCRIPT, APIs, CSS. Please review our portfolio. I would like to work on your project. I assure you, you will not be disappointed with my work. Best regards, Harpreet Singh
$500 USD in 7 days
4.9 (290 reviews)
7.7
7.7
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Hello, It is unclear whether you have API documentation or not. If you have the API documentation, implementation of the API , interoperability with Android and iPhone and DB management will not be an issue. It will work as you have mentioned and I can do the custom coding for the web apps. Kindly share the documentation if you have it. I assure you 30 days of free support after completion. Regards, Abby
$700 USD in 10 days
4.8 (243 reviews)
7.8
7.8
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Hello, Have a good day, I have read your project requirement and I'm very interested in your job posted here to get done by our team. We have 8+ years of experience in in web scraping, web crawling, data mining, data parsing, data extraction, data analysis, data manipulation, and API integrations, working on a wide range of projects. and web design/ development, Word Press, Shopify, Codeigniter, Laravel, OperCart, E-commerce, Node.js, Angular.js, Angular6, SEO & SMM, PSD to HTML, Bootstrap, Responsive Design. and I have done number of projects. I build optimal solutions for my valued clients including small start-ups and enterprise customers to satisfy their data needs and currently maintain the scraping systems of many clients. I can help businesses with requirement gathering, development, testing, maintenance, and support. Mobile App Development: Android, I phone, Titanium (Cross platform for android and i-phone) Excellent knowledge of php, mysql, Ajax, json for database driven application. We can discuss price and time frame for this project. I can handle project independently from designing to development. Please Connect with me on chat for more discussions, Thanks,
$500 USD in 7 days
4.8 (63 reviews)
7.2
7.2
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Hello, Greetings of the day! I am a Web Designer & Developer who has been working since 2014.I have good experience in php, mysql , Codeigniter, Wordpress, shopify, Android Applications, IOS, HTML & HTML5, PSD to HTML, JS, CSS, jQuery, SEO, Graphic design, Bootstrap, Logo design, Responsive design etc. Please send me a message and share complete detail with me then we will discuss further and do your work accordingly. Looking forward for your response with a ray of hope. Thank you for your consideration, Regards KRITI JAIN
$250 USD in 7 days
4.9 (93 reviews)
6.6
6.6
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Hello Hope you're well i am a professional full stack developer with six years of experience. i will develop a wep apps for you as per your needs i assure you about the quality of the work please send me a message for more discussion Thank you
$833 USD in 15 days
5.0 (11 reviews)
6.0
6.0
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Hello, I read through the project details extremely carefully and I am absolutely sure that I can do the project very well. I have team of 40+ developers who are highly experienced in their individual field. And we assure you to perform our very best and would love to finish the task under your deadline.I am waiting for your positive response. Thanks & regards Deepika
$500 USD in 7 days
4.6 (73 reviews)
6.4
6.4
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Hello, I am a full-stack programmer specialized in PHP. Mainly I am working on mobile apps, but I have deep understanding in this field. If you wish, I will develop the app following your requirements. Please contact me. I have understood what you want. Thanks. Imran
$1,500 USD in 7 days
5.0 (22 reviews)
5.9
5.9
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Hello Hiring Manager, I read your job descriptions carefully, I am very interesting in your job of Full-Stack developer needed for offline capable web-app design/deployment to collect data and photos I have the enough experience and good project done with good client feedbacks. Let me know if we can discuss further? Regards Himanshu
$500 USD in 7 days
5.0 (8 reviews)
5.5
5.5
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Hello! I have just checked your project Full-Stack developer needed for offline capable web-app design/deployment to collect data and photos and very interested in it. I am a developer who well skilled for this project and skills PHP, Mobile App Development, JavaScript, Web API and MySQL. If you give me an opportunity, I assure you that I will give you positive result. Please pork me here. Looking to discuss more details with my past works and experience Best
$500 USD in 6 days
4.5 (25 reviews)
5.6
5.6
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Hi, there I am a professional PHP developer who has over 10 years of experience. I read your job description carefully and I am very interested in your job. Regarding after your job post, I am sure of the success of your project. I promise I will keep the deadline, fix bugs and deliver a qualified code so that you will be satisfied with my work. I can start working right now and can fully complete your job 100%. Looking forward to your chatting and really hope to work with you. Thank you. Best Regards
$700 USD in 3 days
5.0 (13 reviews)
5.0
5.0
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Hello, I'm interested on your project and I can create a pwa for you which will save the data locally while there is no internet connection and then sync it when the connection is back. I can use vueJs or ReactJs and I'm also php expert so lets do it.
$400 USD in 4 days
4.9 (59 reviews)
5.2
5.2
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Hi there, I'm available for full time. Let's connect and discuss. Regards
$500 USD in 7 days
5.0 (9 reviews)
4.7
4.7
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Hello! I have checked the project description and I think that I can help you to do this project. I am fully feeling comfortable working with PHP, Laravel, WordPress, JavaScript, Web Design, MySQL, HTML, CSS. Hope to discuss further details via chat. Thanks. Aleksandr.
$500 USD in 7 days
4.9 (14 reviews)
4.5
4.5
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hello sir i have seen your job posted on platform and i feel very much interested to work with you . i have read the things that you want . i consider my self perfect match for this job because I'm working as a web developer and also have a team since the last 4 years i have a profound knowledge in all the programming skills and languages such as HTML , CSS , JS , PHP , ASP , JSP etc and gathered some excellent skills on web developing Again my work have always been appreciated by my clients because of my sleek communication and smooth handling of projects .please come to chat box for detail discussion on project Thanks and Regards
$500 USD in 7 days
4.9 (4 reviews)
4.2
4.2
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Hi There, i am a Website designer and developer. i have 05 years experience in website designing and development. i am expert in website designing and development. please message me to discuss about your project so that i can guide you in a proper way. i am waiting for your reply. Thanks & Regards, Rizwan.H
$250 USD in 7 days
4.9 (19 reviews)
3.9
3.9
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Respected Sir/ Madam, I hope you are doing well. This is Darin Johnson, I am a Senior Full Stack Developer having 10+ Years of Experience & with over 10 years of experience under my belt, I am the PERFECT resource to help you out in your Projects. My Skill: Front-end Technology: HTML5 / CSS 3 / Bootstrap / Jquery/ Javacript / Angular JS/React JS Back-end Technology: Laravel / PHP/ Codeigneiter CMS Development: Wordpress Ecommerce: Woocommerce / Prestashop / Shopify Database: MySQL Version Control: GIT Project Management Tools: Asana / Basecamp / Jira Methodologies: Agile Scrum/ Test Driven Development/ Continuous Delivery Graphic design Availability of Work: Working Days: Monday to Friday Working Hour: 6 Hour / Day I am in business for the last 8 years and now trying to establish a good portfolio with esteemed clients in Freelancer too. I went through your project and would like to propose to you a good value proposition for the same. I must believe that our Portfolio will give you the confidence to start a Business Relationship with us. We worked for different industries starting from Real Estate, Healthcare, Education, Insurance, SME’s, etc. I would like to talk to you in detail about the project so kindly give us an opportunity to show you the best possible solution for the same. Looking forward to hearing from you. Note: This is a Placeholder Bid. I can give you a proper Estimation & Timeline after analyzing the Project. Warm Regards Darin J
$700 USD in 7 days
4.8 (7 reviews)
4.0
4.0
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Hello, I have rich experience with Php. I read through the job details extremely carefully and I am absolutely sure that I can do the project very well. Please feel free to contact me, and will be waiting for more details about your project. Best regards.
$500 USD in 7 days
5.0 (8 reviews)
3.6
3.6
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You will get a one-stop solution from my end as, throughout my 5+ years of freelancing App development career, I have created plenty of Mobile applications. I ensure to give the best quality app with good performance and responsive attractive UI and I have provided the clients with excellent results. I have expertise in Kotlin, Xamarin, Swift, Python, and Java, I am equipped to develop apps using these languages in all industries Pharmaceutical, Travel, Blockchain, Media & Entertainment, etc. I also handle backend integrations for third-party collaborations on your systems. well versed in Mobile App Development in-App-Purchases, User Authentication, User Profile Creation, Location, Chat and Messaging, Map Integration, Payments, Social Media Account Integration, and many more to show. Have considerble knowledge of Android ANT SDK, BLE, Google Cast SDK, ads SDK, offerwall SDK and Titanium. I use libraries such as Sherlock Action Bar, OpenGL, Media Framework, and WebKit to build IoT integration app solutions. I believe in hard work and honesty. I am always interested in making long term professional relationships with my clients to ensure that every project becomes successful. So, if you hire me, I can assure you that you will not regret your decision. I would like to have a detailed discussion with you on this project in order to better understand the project specifications. Hence I invite you for further discussion on chat Best Regards Tejash
$750 USD in 7 days
5.0 (3 reviews)
3.2
3.2
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Hi, I am a talented and trusted developer who is well versed in developing web/mobile/software apps with 6+ years of exp. After reading over your post, I think this project is perfect fit for my skill sets. I assure that I can implement this project as intended with high quality so you will get the perfection. Let's discuss more details in private chat. I am looking forward to the opportunity to work with you. Regards, Nikita Karaychev
$500 USD in 7 days
5.0 (4 reviews)
2.1
2.1

About the client

Flag of UNITED STATES
Houston, United States
5.0
41
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Member since Apr 22, 2005

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