Build an ecommerce / mobile app

Hi We'd like to build a stock take app that hooks into and enhance our users experience of using a well known cloud ecommerce platform This will allow us to present back to the user in a much friendlier and intuitive way than is available in the standard UI or feature sets which currently means that data is extracted into excel spreadsheets in order to complete important tasks off system only to manually load the results back in! We would like to hire a freeelance developer with the following skills so that they can hook into our dashboard and create the app on our behalf - all ownership of the app remains with us! :) Experience with the following frameworks, tools, and libraries to build the app: Read and write HTML, CSS, and Javascript Familiar with installing software using the npm package manager Node.js React [login to view URL] GraphQL Apollo Polaris Demonstrable experience of creating apps for ecommerce / cloud based solutions would be ideal The app (browser and mobile friendly) will do the following: 1. Start a stock take - take a snapshot of the current stock levels (this can be targeted by product type / tag and will filter out certain products) 2. Allow a user to record all stock counted - this may be in multiple locations so user can add, update, delete, overwrite all previous entries 3. Recording stock must be possible on a mobile device (phone / tablet) so that the user can walk around the stock rooms and scan barcodes (use of camera to scan barcodes) - if data errors are found during stock take e.g. a SKU is wrong / duplicated, barcode is not recognised or price is wrong then user can update the existing product during the stock take to fix issues immediately 4. All stock movements (up or down) including sales / refunds made on the system during the stock take must be recorded 5. Upon completion of the stock count the results can be reviewed for dsicrepancies. Simply look at stock counted = stock level + stock removed / sold - stock added / returned during stock take which should equal zero. 6. Any discrepancies should alert the user to re-count those until manager approves - optional ability to add a note / reason per discrepancy 7. Complete stock take - any discrepancies should generate a stock adjustment on the system either up or down 8. Report / dashboard generated showing what was counted, how many products had a discrepancy, what the cost value of those discrepancies etc. If you're interested please get in touch and we'll be able to discuss more details and provide prototypes of what we're expecting our first app to do Extra bonus points for those that join the dots and figure out which platform it is...the clues are there! ;) We've not got a massive budget for this but for the right freelancer we'd be happy to engage with them on longer term basis as we have more app ideas - if you can reference similar projects that you've completed that would be beneficial Look forward to speaking to you