Janne Jylhä - Web Designer & Engineer | JJ Designs

Professional Web Design and Development Services in Finland

Janne Jylhä (JJ) is a professional web designer and engineer specializing in modern web applications, UI/UX design, and creative digital solutions. Based in Finland, JJ Designs offers comprehensive web development services including React applications, design systems, and brand development.

Services Offered

• Web Design and Development
• UI/UX Design and User Experience
• React Application Development
• TypeScript Development
• Design Systems and Component Libraries
• Brand Identity and Logo Design
• Frontend Development
• Responsive Web Design
• Interactive Design
• Web Application Architecture

Technical Skills

• React and React Hooks
• TypeScript and JavaScript
• HTML5 and CSS3
• Tailwind CSS and Styled Components
• Node.js and Express
• Git and Version Control
• Webpack and Build Tools
• RESTful APIs and GraphQL
• Responsive Design
• Accessibility (WCAG)
• Performance Optimization
• Cross-browser Compatibility

Recent Projects

Koutsihoitaa.fi

Website design and development for Koutsi's sauna and event venues. Koutsi provides flexible solutions for parties, sauna evenings, and corporate events.

LianaUI Design System

A comprehensive Design system, component library and frontend tech stack built for Liana Technologies, powering multiple SaaS applications.

JJ Designs

A personal design and engineering portfolio website built with Tanstack, React, TypeScript, shadcn/ui, Radix UI and Tailwind CSS.

LianaMonitor

A user-friendly media monitoring service, to monitor the important themes related to news, brand, industry, and competitors.

LianaAutomation

An automation tool to integrate customer data from multiple sources into your marketing automation platform and run effective omnichannel campaigns.

LianaAccount

A secure and centralized user management system, designed to streamline access across the entire LianaCloud product ecosystem.

Liana Developer

Liana Developer site concept and API documentation, that was meant to support integration and development with Liana Technologies products.

Client Testimonials

"Having worked with JJ for over 20 years in countless projects, I can wholeheartedly recommend him for anything UI/UX related. He is a rare talent, being able to contribute for the project from the very beginning to a finished product." - Samuli Tursas, CEO

"I was impressed by Liana's Design System Frontend that JJ had developed and maintained, all while managing his other tasks. It was visually clean and sharp, and the code was on point. It's rare that an individual can pull it off at the level JJ was doing." - Mikael Toivio, Founder

"JJ's approach to web design, app design, and branding, rooted in a deep understanding of design systems, is truly inspiring, both as a designer and as a mentor. He elevates as much as he challenges, pushing ideas toward their highest-value outcomes." - Aharon Pelz, Senior Product Designer

Contact Information

Available for freelance web design and development projects. Contact Janne Jylhä for professional web design services, React development, UI/UX design, and digital product development.

Location: Finland | Services: Web Design, UI/UX Design, React Development, Frontend Development, Design Systems, Branding

Keywords: web designer Finland, React developer Oulu, UI UX designer Finland, web development services, frontend developer, design systems, brand design, digital product design, user experience design, responsive web design, TypeScript development, modern web applications

Please enable JavaScript to view the full interactive portfolio.