Freelance Next.js Developer (German Speaking) – Landing Page & Frontend

Remote · 3–10 hrs/week · €16/hr · Freelance Invoice

About Gumb

Gumb AG is a modern Swiss software solution for clubs, associations and teams. We help organizations manage schedules, communication and members in one place – used by sports clubs, music groups and community teams across the German-speaking world.
We're a small, fully remote team. You work directly with the founder – no agency, no middleman.

What we're looking for

A frontend developer with a sharp eye for design, conversion and clean technical execution. You don't just complete tasks – you think along, spot problems early and bring ideas to the table.

Your responsibilities

• Improve UI/UX: spacing, typography, hover states, shadows, mobile layout
• Maintain and update content: texts, images and page sections
• Boost performance: image compression, lazy loading, Core Web Vitals
• Apply Next.js best practices: image optimization, SSR/SSG, clean code structure
• Develop landing pages: user flow, structure and conversion optimization

Requirements

Solid, hands-on Next.js experience – this is a real coding role. You write and understand the code yourself. AI tools as support are fine, but they don't replace genuine knowledge. We verify this in the interview.

• Good CSS knowledge / Tailwind
• TypeScript experience is a plus
• First experience with landing pages, SEO or conversion optimization is a plus
• Independent, structured and reliable working style
• German language skills at B2 level or higher – all communication, coordination and documentation is in German. This is a firm requirement.

Work model

Freelance only – invoicing basis. You need a valid self-employment registration in your country (sole trader, Kleingewerbe, FOP, działalność gospodarcza or equivalent), or the willingness to register one. No employment contract, no Employer of Record.

What we offer

• 100% remote, flexible hours
• Direct collaboration with the founder – fast decisions, short feedback loops
• Real influence on product and website development
• €16/hr net, invoiced monthly
• Students welcome if self-employment registration is in place

How to apply

Please send the following in German:

• A Next.js project or live website you worked on (if available)
• Your current self-employment status (registered / willing to register)
• Your preferred start date (ideally within the next 1–2 weeks)
• Your German language level

Note for applicants from Poland, Ukraine, Hungary and Georgia:

We explicitly welcome applications from these countries. Please note: this role requires strong German language skills (B2 or higher). All communication is in German – this is non-negotiable.