Budget: 4500 USD Deadline: 15 days
Hello. I have extensive experience with Node.js. Ready to collaborate
📄 Technical Specification
Project: Backend for concert ticket sales website
Frontend: Landing page almost ready (html, css, js)
🔧 General requirements:
1. Implement payment via:
• 💳 Visa/Mastercard (through CloudPayments / PayBox / Stripe)
• 🟧 Kaspi Pay
2. After successful payment:
• Generate a unique ticket (PDF/PNG)
• QR code and barcode on the ticket
• Download the ticket
• Send the ticket to the user's email
3. QR code scanning system at the entrance:
• Ticket verification (first entry / repeat / not found)
• Notification of successful first entry
4. Separate interface for the checker:
• Authorization
• Access to QR scanner via phone camera
5. Admin panel for viewing and managing sales
⸻
🔒 Authorization and roles:
• admin — access to control panel
• scanner — access to QR scanner
• client — only ticket purchase
⸻
💳 Payment
Visa / Mastercard:
• Integration via CloudPayments / PayBox (choice depends on budget and country)
• Create order → redirect to payment → confirmation callback → generate ticket
Kaspi Pay:
• Integration via Kaspi
⸻
🎟️ Ticket Generation:
After payment:
• Generate a PDF file with data:
• Concert name
• Buyer's name (if provided)
• Unique QR code (hash/id of the ticket)
• Barcode (EAN13 or Code128)
• Date and time of the concert
• Ticket ID
• Save PDF file
• Add download link on the frontend
• Send to email
⸻
📧 Email Sending:
• Use SMTP or SendGrid
• Email with gratitude message and attached ticket (or link)
• Support HTML email template
⸻
📲 QR code scanner (for entry):
Scanner interface:
• Web interface accessible via login/password (role: scanner)
• Support for phone camera
• On scan:
• ✅ If ticket is unused: "Success", green highlight, record entry time
• ❌ If already used: "Already used", red highlight
• ❌ Not found: "Ticket not found"
⸻
📊 Admin panel:
Features:
• List of all orders
• Email, date, amount, payment status
• List of all tickets
• Status: used / unused
• Search by email, date, order number
• Statistics:
• Number of tickets sold
• Total amount
• Purchase timeline
• Export to Excel/CSV option
⸻
🗃️ Database (minimum):
users (
id, email, password, role
)
orders (
id, user_id, amount, status, created_at
)
tickets (
id, order_id, qr_hash, barcode, used, used_at
)
⸻
🧑💻 Technologies (by agreement):
• Backend: Node.js (Express) / Django / FastAPI
• Database: PostgreSQL / MongoDB
• QR: qrcode, pyqrcode, bwip-js, python-barcode
• Email: Nodemailer / Django SMTP / SendGrid
• PDF: pdfkit / reportlab
⸻
⚙️ Additional:
• All data must be stored securely in a database
• All QR codes must be unique and encrypted
• Login logs via QR are mandatory
• Security and protection against re-entry (duplicates)
Budget: 4500 USD Deadline: 15 days
Hello. I have extensive experience with Node.js. Ready to collaborate
Budget: 1000 USD Deadline: 20 days
Hello.
I am a NodeJS developer. Ready to take on the project. Write to me, let's discuss.
Budget: 6500 USD Deadline: 70 days
Здравствуйте!
Меня зовут Алексей, я представляю группу разработчиков – NC-1.
В нашей команде есть специалист с необходимыми для Вас опытом и знаниями. Ставка в час – 23 USD
Стек: React, React native, Expo, Next, Vue, ChartJs, Mobx, Redux, Material-UI, Fluent-UI, Bootstrap, Antd, NodeJS, Nest, Express, Koa, Meteor, MongoDB, PostgreSQL, Redis, Mongoose, Typegoose, Typeorm, JWT/JWTR, JavaScript ES6+, TypeScript, HTML/CSS, SASS/Less, Tailwind, Styled-component, Git, JSON, RESTful, GraphQL, Firebase, Axios
Портфолио – https://nc-one.com/case-studies
С уважением, Алексей М.
Budget: 1200 USD Deadline: 30 days
Good day, I have 3 years of experience in web interface development, I will do it quickly and qualitatively, we can discuss the project details and get started with the work
Budget: 25 USD Deadline: 1 day
Hello.
I have read your project with interest. I am confident that I can do effective and quality work that meets your requirements and expectations. Over 8 years of experience.
Budget: 1000 USD Deadline: 20 days
Hello, Bekzat,
I am Georgios Tutudakis, a full-stack developer with experience in creating transactional platforms and secure ticketing systems.
What I will provide:
Secure backend (Node.js + Express or FastAPI) with PostgreSQL
Payment gateway integration: Stripe, CloudPayments, or Kaspi Pay
Ticket generation: PDF with QR + barcode (unique and encrypted)
Email delivery: HTML templates via SMTP or SendGrid
Admin panel: orders, ticket usage statistics, CSV export
Scanner interface: web login + QR code verification using camera
Role-based access: administrator, scanner, client
Technology stack proposal:
Backend: Node.js (Express)
Database: PostgreSQL
PDF/QR/barcode: pdfkit, qrcode, bwip-js
Email: Nodemailer or SendGrid
Deployment: Docker + CI-ready
Timeline:
Backend MVP: 7–10 days
Full feature set with admin panel and scanner: 2.5–3 weeks
Testing + deployment: 3–5 days
Estimate:
$800–$1400 USD, phased delivery
Includes full backend, admin user interface, scanner panel, and deployment
Let's create a seamless ticketing process!
Best regards,
Georgios Tutudakis
Budget: 4000 USD Deadline: 1 day
Good day, we are engaged in web development, website layout on PHP, frameworks Laravel, HTML, CSS, including WordPress. We develop websites on PHP, frameworks on Laravel, and mobile applications for iOS and Android turnkey.
We develop websites on PHP and mobile applications for iOS and Android.
We have experience in creating CRM/ERP systems.
Ready to execute your order turnkey.
We develop websites on WordPress and mobile applications for iOS and Android. Total development experience is 7 years. Ready to execute your order turnkey.
1. Projects
https://berkanaplus.com.ua/ - This site was migrated and server configured.
2. https://leondesign.kyiv.ua/
PHP version updates and plugin updates.
3. https://peg.com.ua/
Development of a new module for the site for dynamic product price updates.
https://uvali.com.ua/
VPS dedicated server configuration. 📈 Internet marketing and promotion:
Google Ads, Facebook, TikTok advertising setup
SEO and copywriting
Promotion through push notifications and in-app advertising
Marketing analytics, A/B testing, campaign optimization
📈 Internet marketing and promotion:
Google Ads, Facebook, TikTok advertising setup
SEO and copywriting
🎨 Design solutions:
In-house design department
UI/UX design, branding, advertising creatives
Budget: 2500 USD Deadline: 30 days
Hello,
Thank you for the detailed description, I will be happy to assist with the implementation of the project. I am a Software Development Engineer with over 7 years of experience creating various websites, SaaS solutions, complex web platforms, and MVPs for startups. In my portfolio, I have listed some of the developed projects.
My stack includes the following technologies and their frameworks: PHP (Yii2, Laravel, Symfony), HTML5, CSS3, JS (Vue.js, React.js), MySQL, PostgreSQL.
Budget: 1500 USD Deadline: 15 days
I can definitely handle your project, and I'd love to create something great with you.
Budget: 1200 USD Deadline: 20 days
Good day. I have similar implementation projects already. I can do everything on Django + FastAPI. With deployment to the server. I know all the nuances.
Budget: 1000 USD Deadline: 15 days
Good time of day. I will do it on Laravel. I did something similar before.
Budget: 2000 USD Deadline: 15 days
Hello! I will complete your task quickly and efficiently.
My portfolio: https://freelancehunt.com/ua/freelancer/romas6ka.html#portfolio
Write to me, I will start working today. I will be glad to cooperate with you!
Budget: 2000 USD Deadline: 10 days
Good afternoon. I have already created such a system for Atyrau Stadium. I will start with a question. Is a seat selection system needed? This is the first question. The second is more of a suggestion than a question: to implement everything on Laravel. It will work stably and quickly. If you're interested, I would be glad to cooperate - feel free to contact me!
Budget: 3000 USD Deadline: 17 days
Hello! Ready to complete the project according to your needs.
Please tell me, are you considering other frameworks?
Budget: 1500 USD Deadline: 15 days
I can do it on Laravel, I have done something similar. There are many ready-made parts for this task (admin panel, barcode generation, pdf, etc.) on Laravel.
Budget: 1200 USD Deadline: 12 days
Hello! I have carefully reviewed your project for developing a backend for concert ticket sales. The task is interesting and well-structured. I have significant experience in developing similar systems, especially in integrating payment gateways, generating documents (tickets), and implementing role-based authorization systems.
I propose to implement the backend using Node.js (Express) with PostgreSQL as the database. This will ensure high performance and system reliability. Integration with CloudPayments/PayBox/Stripe and Kaspi Pay will be carried out according to your requirements. For ticket generation, I will use pdfkit, and for scanning QR codes - bwip-js. All data will be securely encrypted and stored in the database. The admin panel will be developed with user convenience in mind and will provide full control over sales and statistics.
I am confident that I can successfully complete your project on time and within budget. I am ready to discuss details, architecture, and chosen technologies to ensure we are on the same page. I suggest we have a call soon for a more detailed discussion.
Budget: 850 USD Deadline: 3 days
Good afternoon! Having studied your project with great interest, I am ready to start working on it. Let's discuss the details.
Budget: 700 USD Deadline: 10 days
Good afternoon! I have already developed a similar project with the creation and automatic generation of PDF tickets with unique QR codes using Python/Django and payment through Stripe. An example is in my portfolio. Ready to collaborate.
Budget: 500 USD Deadline: 20 days
Hello. I can complete your order on Python FastAPI, Django. PostgreSQL database. What is the budget for the project?
Budget: 1200 USD Deadline: 21 days
My name is Dmitry, I am a full-stack developer with over 7 years of experience, specializing in Node.js (Express), Laravel, PostgreSQL.
After reviewing your technical specifications — everything is clear and feasible. Here is a brief overview of the main points:
✅ What I can implement:
• Payment integration via CloudPayments / PayBox / Stripe / Kaspi Pay
• Generation of a unique PDF ticket with QR and barcode, sent via email
• Web interface for QR code scanner, including mobile camera
• Admin panel with analytics, ticket statuses, export
• User roles (client / scanner / admin) with authorization
• Optimized database structure (PostgreSQL)
🔧 Technologies I will suggest:
• Backend: Node.js (Express)
• Database: PostgreSQL
• PDF: pdfkit
• QR / Barcode: qrcode, bwip-js
• Email: Nodemailer / SendGrid
• Authorization: JWT, bcrypt
• Interfaces: React / simple panel on Bootstrap/Tailwind (if needed)
🧩 I am ready to discuss all details and propose the project architecture.
Thank you, I look forward to collaborating!
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