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Refactor delphi point of sales software

$25-50 USD / hour

Closed
Posted over 7 years ago

$25-50 USD / hour

We have a legacy point of sales software build in delphi that is run in a multi store retail company with a central mysql hosted DB The software uses a local clientdataset that is syncronized with a mysql backend We reached the limit of the current architecture because we need to increase the number of pos per shop. We would need to refactor the software, the ideal solution would be to have an multi tier environement 1 DB backend (hosted) 2 Service layer (if needed) (hosted) 3 Shop level middleware (in store) 4 Several POS client connected the store middleware Ideally level 3 & 4 should be able to run in disconnected mode from 1 & 2 in case there is a drop in internet connection, however we are open to discuss the cost / benefits of having not having this disconnected possibility
Project ID: 11250222

About the project

24 proposals
Remote project
Active 8 yrs ago

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24 freelancers are bidding on average $34 USD/hour for this job
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Hi. I have a lot experience with the same arhitecture. for now my application is working with drag stores. One server with MySQL, middle level on PHP (convert MySQL to ClientDataSet binary format ) and client appllication on Delphi which are working with POS. The net has 20 stores with 3 POS in each. all this schema will be able to work without Interner as well. If there are some issues with net, then application writes all sales to DBF on local PC and after restore internet connection push all changes to DB. So i really can help you . We can change middle tier to DataSnap for example if you have Windows on Server or use mORMot with Lasarus on Unix server and mORMor on Delphi clients
$25 USD in 40 days
4.9 (157 reviews)
7.6
7.6
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Good afternoon and thanks for the invitation. before proceeding in hypothesis I would like to check why the software reached a tech limit then I could suggest improvements or entire reengineering. Which Delphi version has been used for the actual software? are sources available? Feel free to contact me anytime, Augusto Pellis
$44 USD in 10 days
4.8 (35 reviews)
6.7
6.7
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Hi, how are you? My name is Igor and I'm Delphi expert with more than 15 years of experience in various areas including multi tier and multiplatform solutions, POS, fiscal devices, optimized standalone applications. Can you tell me do you already have a system that handles multiple stores and pos instances connecting and using them same (at company central server) database or that is the end result you're looking for? Also is POS client for Windows only or Android (working on tablets)?
$27 USD in 25 days
4.9 (56 reviews)
6.5
6.5
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Hello, I understood the initial scope of this project. Although i want to discuss further this job in order to prepare the final concept for this project. After Complete discussion over the call or in chat, i will prepare following things for you - Technical Project Proposal - Flow chart for this Project - Execution plan (Step by step procedure with explanation how and at what that we are going to execute a particular task)
$51 USD in 10 days
4.9 (12 reviews)
6.2
6.2
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Hi, I'm a well experienced IT Consultant with Delphi specialty for more than 10 years and I'm ready to help you out with your project. I'm hard working person who likes to contribute with my experience in challenging projects, I assure you my commitment to this job showing you my disposition no matter what being always there in order to respond to your needs. I like to work in an agile development framework, that means I can provide you with working software periodically so you don't have to wait until something is completely done. Also I'm Scrum certified who has worked in several projects being part of different roles and responsibilities. Receiving feedback from customers or users is very important in order to have things done right and on time. I can provide a Issue Tracker Site where we can create and maintain features, bugs or any requirement also to upload evidence (.gif, screenshots, files) and comments to create historical data for decision taking. This Issue tracker has Time management to make easy tracking work hours per developer. I can manage source code version control in order to make remote work easy and secure, I'm well experienced on this matter specialized in Bitbucket/Git and others. I believe in probationary periods so I'm willing to have one in order to demonstrate my skills set. About payment I'm open to discuss rates and conditions. I consider myself as a DevExpress Expert. I'll be waiting for you in order to discuss this project. Regards!
$26 USD in 10 days
5.0 (20 reviews)
6.0
6.0
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Hi I'm Delphi developer for many years, starting from Delphi 7 till XE 10. I want to help you with refactoring your application. Please contact me to discuss details of the project Thank you Oleg.
$27 USD in 10 days
5.0 (70 reviews)
6.0
6.0
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Hi there ^^ I'm delphi coder actually I used to code simillar jobs just like the one you have mentionedd i MEAN ERPs and POSs rather than databse driven applications using the latest engines like FireDac,UNIDAC,ZEOS,ODBC and so forth dealing with RDBMS like MYSQL,SQLITE,SQLSERVER,FIREBIRD and so forth ^^ regarding to your project we can use the latest engine used by delphi ^^ provide me with more info and I will do my best ^^ best regards
$25 USD in 30 days
4.9 (48 reviews)
5.6
5.6
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Dear Sir, I have 15+ years of pure experience in Delphi (it is my specialization). Last 7 years I work as freelancer. I worked with all popular DB engines like MS SQL Server, MySQL, Interbase/Firebird etc. Implementation of multitier systems is not problem for me. I guarantee very carefully written source code and reliable working logic of application ... I'm not often accessible for hiring, so, you have chance to get one of best Delphi developer :) Sincerely, Dima
$33 USD in 20 days
5.0 (27 reviews)
5.5
5.5
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I want to discuss this project with you further, let me know the best suitable time for you to schedule the meeting, Feel free to message me at any time, i used to be online 14 hrs in a day on this website so probably you will get a quick response from my end.
$25 USD in 40 days
5.0 (8 reviews)
5.2
5.2
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Hi, I am interested. I am full time freelance. I will start immediately. Thanks narendra
$25 USD in 40 days
4.9 (5 reviews)
4.0
4.0
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Hi, I'm a Delphi developer with more than 30 years of experience (yes, since the times of Borland's Turbo Pascal). The past 20 years I was fulltime employed (in-situ) by two international organizations; the Inter-American Tropical Tuna Commission (San Diego, CA, USA) and the Food and Agriculture Organization of the United Nations (Victoria, Seychelles). I'm currently retired, and doing some freelancing work to stay busy and up-to-date. I also have extensive experience designing and implementing SQL databases (more than 20 years), and developing database-centric applications (with Delphi and .NET). I'm sure I can help wih your project, and re-design your POS in a way that would neet your new requirements. If you think you may be interested in my services, please send me a message, so we can further discuss details of your project. Best regards, Marco García
$44 USD in 40 days
4.5 (3 reviews)
3.4
3.4
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%%%%%%%I have wide experience in delphi , i can help you %%%%%%%%% I did POS retail, using service cloud based , online and offline , with invetory. i am very interesed let's talk about. Please check my portafolio. I will wait your contact. Just PM me. Best Regards.
$27 USD in 10 days
0.0 (0 reviews)
0.0
0.0
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HI Greetings, I have experience working on legacy project developed using delphi. also Migrated 6 project from Delphi 5/6/7 to Delphi XE2,XE6,Xe8. I have working on Design and developed POS for Saudi Based company. Done code management for for two project, both project is in POS. Migrated to latest technology . Also experience working on project related to Finance and Accounting. Looking forward to work with you. Thanks, Prakahs
$50 USD in 10 days
0.0 (0 reviews)
0.0
0.0
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I want to know more about you siftware first.
$55 USD in 10 days
0.0 (0 reviews)
0.0
0.0
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I'm a Embarcadero Certified Delphi Developer with over 10 years of experience in software development, legacy software. I have free time to work 8 hours per day.
$44 USD in 40 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of BELGIUM
Bruxelles, Belgium
5.0
3
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Member since Sep 23, 2004

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