About
I am a full-stack web developer with a Computer Engineering degree, specializing in building modern websites and web applications. I offer affordable, professional solutions ranging from basic web applications to comprehensive systems that support businesses across different sectors.
UI/UX Designer & Web Developer
I work with both frontend and backend technologies, delivering scalable applications with a focus on performance and security. My expertise covers the entire development lifecycle — from server setup and configuration, through backend and frontend development, to fully secured websites.
Skills & Technologies
Comprehensive expertise across the full web development stack.
Frontend Development
Build responsive and interactive interfaces using Next.js and React.js. Work with CSS frameworks and component libraries like Mantine UI and Material UI.
Backend Development
Build Node.js + Express.js backends and REST APIs with secure authentication using JWT and OAuth2. Utilize modern NoSQL databases like MongoDB.
Security & Payment
Implement security and authentication systems following JWT and OAuth standards. Manage roles and permissions in admin and client panels. Integrate applications with payment systems such as Stripe and Przelewy24, including secure payment confirmations via webhooks.
Infrastructure & Deployment
Deploy full-stack applications on VPS with NGINX setup, configure domains, and install SSL certificates. Apply CI/CD with GitHub for automated deployments.
UI/UX, Performance & SEO
Design responsive and accessible interfaces with attention to user experience. Optimize performance using lazy loading, caching, and image optimization. Implement SEO strategies and analytics integration for better visibility and engagement.
CMS & WordPress
Integrate CMS platforms including WordPress. Customize themes and plugins, optimize SEO, enhance performance, and set up SSL for secure access.
Portfolio
Recent projects showcasing my expertise in web development.
Responsive Restaurant Website
Modern, fully responsive website for a restaurant featuring online ordering, menu, gallery, table reservation system, and contact form.
See more...
Restaurant POS Management System
Advanced web application for managing a restaurant: admin panel, customer accounts, orders, menu items, categories, and staff workflows.
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Holiday Resort Booking Website
Custom WordPress site for a holiday resort with online booking, gallery, and easy content management for quick updates.
See more...Services
Comprehensive web development solutions from concept to deployment.
Websites & Applications
High-quality, fully customized websites and web applications.
- ✓Fully personalized visual design
- ✓Full responsive web design
- ✓Single Page Applications (SPA)
- ✓Multilingual websites
- ✓GA, GTM, Pixel analytics
- ✓GDPR / Consent Mode
Custom Web Applications
Tailored web applications and backend solutions.
- ✓Microservices
- ✓Online payments integration (Stripe, Przelewy24)
- ✓Booking & payment systems
- ✓Dedicated CMS (Content Management System)
- ✓Client & Admin panels with user management
- ✓Custom authentication systems
- ✓Integration with other systems
- ✓API integrations
Servers & Hosting
Support in server setup and hosting for optimal performance and reliability.
- ✓Domain & hosting setup
- ✓Troubleshooting and problem-solving
- ✓VPS server configuration (Ubuntu, NGINX)
- ✓Security hardening (Firewall, Fail2ban)
- ✓Database management
SEO & Analytics
Improve website visibility, performance, and real-time monitoring.
- ✓Google Analytics (GA)
- ✓Speed optimization
- ✓Google Search optimization
- ✓Real-Time Traffic Monitoring
WordPress & CMS
Professional WordPress websites with modern design and custom functionality.
- ✓Installation and configuration
- ✓Build from scratch
- ✓Plugin customization
- ✓Performance optimization
- ✓Security enhancements
- ✓SSL certificates installation
Payments
Integration with popular payment methods and systems.
- ✓Apple & Google Pay, Visa, Mastercard, BLIK, etc.
- ✓Payment carts
- ✓Payment confirmations
Contact
Let's build something great together!
Whether you need a custom web application, a modern business website, or help with server setup and security – feel free to reach out. I'll be happy to discuss your project and find the best solution for your needs.
Call Me
+44 7518 577503
Email Me
sprengel.rafal@gmail.com
Address
Hull, United Kingdom