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Development of a SaaS platform

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Development of a SaaS platform and software for self-service kiosks.

1. General project description

Development of a B2B SaaS platform based on the HaaS/RaaS model (Hardware/Retail as a Service) for automating sales in barbershops and beauty salons.

The product consists of a cloud management panel (Web Admin Panel) and a client web application (Kiosk Frontend) operating on 24-inch vertical touch screens in a secure mode.

2. System architecture

Backend (Cloud server):

Data storage (PostgreSQL/Supabase), subscription management for owners, processing API requests.

Web Admin Panel:

Owner's personal account.

Kiosk Application:

Terminal interface.

Hardware Bridge:

Local wrapper program (Electron.js or Python) for connecting the web tab of the browser with the physical ports (USB/COM) of the payment terminal and receipt printer.

3. Owner's personal account (Web Admin Panel)

Access is provided by subscription. The panel should be as intuitive as possible, without complex drag-and-drop mechanics.

Module "Constructor" (CMS)

• Uploading the salon logo.

• Choosing a visual theme from 3 presets (Light Minimalistic, Dark, Branded).

• Tabular input: adding masters (photo + name), service categories, and price list.

• "Publish / Launch" button: saves settings and generates a unique secure link. When this link is opened on the kiosk, a ready-to-use interface is launched.

Module "Marketing and Upsell"

• Adding complementary products (cosmetics) for additional sales.

• Setting up automatic discounts ("Happy Hours").

Module "Analytics and AI"

• Dashboard: revenue, number of transactions, statistics for each master (including collected tips).

• AI Assistant (based on LLM), which summarizes the week's results in text and gives sales advice.

4. Kiosk application (Kiosk Frontend)

Vertical interface (aspect ratio 9:16), operating in full-screen Kiosk Mode (strict lockout of access to the operating system).

Main navigation and multilingual support

• A language selector is located in the corner of the screen.

• Localization (i18n): English and Polish languages are hardcoded in the code for instant loading. Other languages (Spanish, French) are translated dynamically via API (DeepL/Google) with mandatory caching of translations in the salon's database to save requests.

• Three main buttons on the start screen: "New Visit," "Repeat Visit," "Purchase Products."

Scenario "Repeat Visit" and loyalty program

• The client enters their phone number for identification.

• Hidden loyalty: the system checks the visit counter in the database. If the condition set by the owner is met (for example, "6th haircut"), an animation of a gift is displayed, and a 100% discount is automatically applied.

• An offer to repeat the last service with the same master in one click.

Scenario "New Visit" and payment

• Choosing a master.

• Choosing a service.

• Upsell screen (offering to add shampoo, paste, or an additional service).

• "Smart Tips" screen: a pop-up before the final amount — "Will you leave a tip for the barber [Name]?" Action buttons: "No, thank you," quick denominations (e.g., 5 zł, 10 zł, 20 zł), and "Other Amount" button (calls the numeric keypad).

• Payment: transferring the final amount (service + tips + products) through the Hardware Bridge to the bank terminal. Payment waiting animation.

Transaction completion and marketing

• SMS receipts and Google Maps: an offer to send the receipt via SMS. The SMS integrates a link to the electronic receipt and a request to leave a review on Google Maps (the link to the maps is set in the admin panel).

• Quality assessment: the last screen with a photo of the master and 5 stars — "Rate the work." One touch sends the rating to the owner's admin panel and returns the kiosk to the main screen.

5. Hardware and stability requirements

Integration with acquiring

• Direct API integration with Polish terminals (Polcard, eService).

• The system must correctly handle errors: insufficient funds, cancellation by the client, timeout.

Integration with printer

• Automatic printing of fiscal receipts.

Offline resilience

• In the event of a short-term Wi-Fi network drop, the kiosk saves visit data locally and synchronizes it with the server when the connection is restored.

6. Recommended technology stack

Frontend (Admin Panel + Kiosk)

• React

• Next.js

• TailwindCSS

Backend & Database

• Supabase (PostgreSQL)

• Node.js

Hardware Bridge

• Electron.js (for packaging the web version into a desktop application with access to USB/COM ports of the hardware)

AI & External API

• OpenAI API (AI analytics)

• Twilio or SMSAPI (sending SMS receipts)

Proposals 26 Discussions

Andrii Roabish

4 0

Budget: 27000 UAH Deadline: 31 days

📌Hello.👋
⭐️My name is Andrey.
⭐️My work experience: 12 years+

• ➡️I can show works specifically on SaaS platforms
• 🎨Portfolio: Freelancehunt
• ✅Work rating on Behance (over 600,000 views)
• 💼More works here: Dribbble

Volodimir K.

15 0

Budget: 15000 UAH Deadline: 15 days

Good day, I see that this is not just a website, but a complex SaaS system with a kiosk, admin panel, and integrations with a terminal and printer. I have been developing turnkey web solutions for 8 years and work well with React/Next.js, Node.js, and API integrations. I can design an intuitive dashboard, offline synchronization, multilingual support, and a stable kiosk mode. I am ready to discuss the architecture and a step-by-step implementation plan.

Oleksii Buglak

9 0

Budget: 14000 UAH Deadline: 21 days

Good day!

I will do everything without any problems, as quickly and efficiently as possible. Below is information about my relevant experience and portfolio.

— React / Next.js / Tailwind — frontend at web.rstays.com (booking service) and at momicro.com.
— Node.js + PostgreSQL — backend from scratch at web.rstays.com and momicro.com.
— Subscription billing (Stripe) — implemented in rstays and momicro.
— AI based on LLM (analytics, assistants) — momicro.com and ai-desk.ai, this is my specialized product.
— Electron / desktop wrappers and integrations with hardware, payments, offline synchronization — I have practical experience.

Portfolio:
https://momicro.com
https://web.rstays.com
https://ai-desk.ai

GitHub: https://github.com/axbuglak

Feel free to write, we will discuss everything.

Sincerely, Buglak Alexey

Kirill Savenko

5 0

Budget: 1000 UAH Deadline: 30 days

Hello! The project is incredibly interesting, and we are ready to implement it turnkey.
We are a team of two experienced engineers, our synergistic stack and experience perfectly cover the architecture of your project:
1. I am a Full-Stack developer (4+ years of experience): I specialize in the modern stack of Next.js, React, TailwindCSS, TypeScript, Node.js, and Supabase (PostgreSQL). I will develop a flawless, intuitive Web Admin Panel (with a custom CMS/builder) with three design presets, AI analytics on OpenAI, link generation, and integration with DeepL and Twilio. I will also build a sensitive, fast Kiosk Frontend (9:16) with optimized animations (loyalty gifts, "smart tips," feedback system).
2. My colleague is a Senior Python engineer (3+ years of experience with his own ecosystem of libraries): a professional in system programming, hardware integrations, and hardware. He will develop a bulletproof Hardware Bridge (Python / Electron) for reliable synchronous communication between the touch web interface and the physical COM/USB ports of Polish payment terminals (Polcard, eService) and fiscal receipt printers. He will also implement a stable Offline-first architecture (local transaction storage in the kiosk with background synchronization in Supabase when Wi-Fi is restored).
Why our combination is the perfect solution for you:
Fast design using AI: We can develop the visual concept and interface using modern professional AI tools — this will significantly speed up the layout creation process without losing quality and allow us to move much faster to the programming and testing stage.
No blind spots and template solutions: We clearly separate areas of responsibility: I create premium UX/UI and cloud logic, while my colleague ensures that the hardware part works like clockwork. We do not use heavy template builders and know how to write fast custom admin panels from scratch for B2B SaaS projects.
Ready to work with the Polish market: We know the specifics of integrating European payment gateways, SMSAPI, and localization (i18n with hardcoded caching).
🎁 A bonus from us to get started:
We will set up your cloud infrastructure for free, connect the domain, and deploy a test environment (Staging Environment) on reliable free hosting to demonstrate the first prototypes of the control panel.
Our relevant works (custom platforms, custom CMS, and services with complex logic):
my-fitness-club.com — a platform with a fully custom admin panel that works as its own mini-CMS. It allows flexible...

Roman Matvii

67 0

Budget: 17000 UAH Deadline: 10 days

Hello! I will complete your task quickly and efficiently. I will create a platform tailored to you!

My recent works
https://indexfast.pp.ua - fast website indexing
https://mono-bank.pp.ua - everything about Monobank
https://mamamia.pp.ua - online store
https://programist.pp.ua/ua/portfolio/ - portfolio of works
https://monitortest.pp.ua - monitor testing
https://keytest.pp.ua - keyboard testing
https://pctest.pp.ua - computer testing
https://vseetut.matviy.pp.ua - layout

My portfolio: https://freelancehunt.com/ua/freelancer/romas6ka.html#portfolio
Write to me, I will start working today. I will be glad to collaborate with you!

Andrey K.

1 283 1

Budget: 27000 UAH Deadline: 20 days

Hello. I have extensive experience with Electron. I am ready for collaboration.

Oleg Zhilin

10 0

Projects 10
Rating -
Rating 412

Budget: 100000 UAH Deadline: 10 days

Good day, let's do it, everything is controlled, quality and at a good pace. I have already completed such projects many times and know what to do at each stage. Respectfully, Oleg Zhylin

Kyryl Shcherbyna

24 0

Budget: 27000 UAH Deadline: 15 days

Hello! I see that you are planning to develop a SaaS platform for barbershops and beauty salons with quite a complex architecture and integrations with equipment. The main tasks ahead of us include implementing a cloud control panel and an interface for kiosks. Given the need to work with payment terminals, cloud databases, and an AI assistant, this requires attention to detail and thorough development of all scenarios. My approach will involve phased development of functionality, with careful testing of all integrations to minimize potential risks when using the system.

Some important points to clarify: 1. What specific functionality are you considering for the AI assistant? 2. Are there already selected APIs for integration with the terminals, or will I need to conduct research? 3. What are the age characteristics of your product's target audience?

The actual timeframe for project completion is estimated at 20 days. This will allow time to work out all the details and integration. On my part, I will ensure a complete development cycle up to deployment on the server and user training.

You can check reviews and portfolio for completed similar projects.

Oleh Skupeiko

4 0

Budget: 1234 UAH Deadline: 1 day

Good day! I have the necessary stack and experience. Message me privately, and we will discuss the details.

Ihor Nadolskyi

46 0

Budget: 1234 UAH Deadline: 1 day

Hello! I have experience in SaaS development. I would be happy to help you!

Denis Z.

28 0

Budget: 50000 UAH Deadline: 40 days

I am developing on Next.js, Node.js, and Express.js, with experience in creating SaaS platforms, CRMs, personal dashboards, and AI integrations. In your project, it is crucial to lay down the right scalable architecture from the start, so that subscriptions, kiosks, analytics, hardware integrations, and new modules can grow smoothly without rewriting the system. I am ready to propose an optimal stack and implement the project in phases, considering the future growth of the product.

Dmytro V.

4 0

Budget: 18000 UAH Deadline: 12 days

You described a very complex project with a SaaS platform for barbershops. An especially important point is the Kiosk Mode on 24-inch touch screens and offline data processing during Wi-Fi outages - this is a non-trivial task. I have experience with similar things: I recently worked on UI/UX for a SaaS dashboard with integrations and webhooks for leads. Which payment processing platform do you plan to use - Polcard, eService, or another?

Danilo Manulyak

15 0

Budget: 1500 UAH Deadline: 1 day

Good day.

I am implementing a SaaS platform with an admin panel, a kiosk application, and integration with hardware, using Next.js and Node.js. I will set up stable interaction with the API, offline synchronization, and a subscription management system.

I am ready to discuss the details and start working. I would be happy to collaborate.

Taras O.

4 0

Budget: 27000 UAH Deadline: 1 day

Hello!

My team and I are ready to implement the project "turnkey" - from design to full development and launch. Our team includes experienced developers, designers, and UX/UI specialists, so we can create a convenient, modern, and functional product according to your requirements.

We will be able to determine the timelines and budget accurately after discussing the details and understanding the full scope of work. I would appreciate your feedback, and I can send examples of our work in private messages.

Yevhenii Tykhonov

16 0

Projects 18
Rating -
Rating 805

Budget: 27000 UAH Deadline: 14 days

Hello. I can help with building a reliable SaaS platform for kiosks, where the primary requirements are a secure kiosk mode, stable payment processing, and correct offline synchronization without transaction duplication. One important nuance that should be discussed in advance is the mechanism for linking the kiosk to the account and secure device authentication to prevent link and configuration tampering. To get started, please clarify if there is already a list of models of payment terminals and receipt printers that need to be integrated. Respond, and I will send a brief set of risks and questions regarding the integration to move forward.