Senior Frontend Developer – Next.js

Logicc - KI für Unternehmen, DSGVO konform

Senior Frontend Developer designing and developing AI applications in an agile team. Collaborating with cross-functional experts and enhancing frontend architectures in a startup environment.

Posted 4/12/2026full-timeHamburg • 🇩🇪 GermanySenior💰 €60,000 - €70,000 per yearWebsite

Tech Stack

Tools & technologies

CypressJavaScript.NETNext.jsReactTypeScript

About the role

Key responsibilities & impact

Designing, developing and improving the existing frontend software architecture
Collaborating with a cross-functional team
Supporting the entire process from conception to deployment
Mentoring and supporting other developers on the team in advancing their skills

Requirements

What you’ll need

5+ years of hands-on experience with React and TypeScript, preferably with complex B2B SaaS products
Solid knowledge of Next.js (App Router, Server Components, Server Actions)
Team leadership
Strong AI-coding experience (Cursor, Codex, etc.)
Confident working with REST APIs and ideally experience with C#/.NET backends
Nice-to-have: experience with the Vercel AI SDK or similar streaming/LLM integrations
Experience with end-to-end testing (Playwright, Cypress)

Benefits

Comp & perks

Flexible working hours
Free choice between remote work, a hybrid model, or working from our beautiful office in downtown Hamburg
Subsidy for the DeutschlandTicket (for travel within Germany)
Wellpass membership
Regular team events

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

ReactTypeScriptNext.jsREST APIsC#.NETend-to-end testingPlaywrightCypressAI-coding

Soft Skills

team leadershipmentoringcollaboration