Senior Frontend Developer (m/w/d)

Sciencentric; Düsseldorf; Hybrid; EUR 60,000 - 85,000; Full time

Benefits offered by this job

Health benefits

Dog-friendly office

50% discount on job ticket

Job summary

Sciencentric is seeking a frontend developer to build modern Vue 3 applications with TypeScript, integrating REST/OpenAPI services, and collaborating on UI/UX design. You’ll work in a hybrid setup in Düsseldorf with a focus on performance, accessibility, and secure implementations.

You will participate in architecture discussions, work with GraphQL or WebSockets where needed, and contribute to clean code and testing practices.

Qualifications

• Proven frontend development experience with Vue 3 and TS.
• Collaborates on UI/UX design for responsive apps.
• Experience integrating REST/OpenAPI services in frontends.
• Familiarity with GraphQL, WebSockets and APIs.
• Understanding of architecture, clean code and testing.

Responsibilities

• Develop modern frontend apps using Vue 3 and TS.
• Shape UI/UX with designers for responsive, high-performance apps.
• Integrate backend via REST/OpenAPI, consider GraphQL/WebSockets.
• Collaborate with interdisciplinary teams to deliver requirements.
• Focus on accessibility, security, and code quality.

Skills

Vue 3

TypeScript

Frontend development

UI/UX collaboration

REST/OpenAPI

WebSockets

GraphQL

React

Angular

Svelte

Vue Router

Pinia

Performance optimization

Accessibility (A11y)

Security patterns (JWT, OAuth)

Software architecture

Testing

German & English proficiency

Cloud/DevOps basics

Astronomy/spaceflight knowledge

Tools

Vue 3

TypeScript

Vue Router

Pinia

REST/OpenAPI

GraphQL

WebSockets

React

Angular

Svelte

Job description

We are not just a software development company – we are innovation partners for both the business and scientific worlds. With us, you’ll work on customized solutions that help shape the future. If you are passionate about programming, curious about new technologies, and want to make an impact with your ideas, then you’ve come to the right place!

• Driving new developments: you develop modern frontend applications with Vue 3 as well as TypeScript.
• Shaping UI/UX: you work closely on the design to build user-friendly as well as high-performance and responsive applications.
• Integration and architecture: you integrate backend services via REST/OpenAPI interfaces into modern Vue frontends and develop scalable, maintainable architectures.
• Teamwork and communication: you collaborate with interdisciplinary teams to understand requirements together and successfully implement them.
• Experience with Vue 3 (Composition API, Pinia, Vue Router etc.).
• Responsive Design – Understanding of mobile-first, breakpoints, and fluid layouts.
• Knowledge of Java(especially Spring) is an advantage (e.g., for integrating frontend and backend).
• Experience working with REST and OpenAPI interfaces
• Understanding of software architecture, clean code, and testing.
• Very good German and English skills, both spoken and written.
• Initial experience with React, Angular, or Svelte.
• Frontend Performance Optimization (lazy loading, code splitting, caching).
• Accessibility (A11y) – accessible development in accordance with WCAG standards.
• Security awareness in the frontend – XSS, CSRF, secure authentication patterns (JWT, OAuth).
• API integration – not just OpenAPI, but also GraphQL or WebSockets.
• Cloud/DevOps understanding – for deploying builds in cloud environments.
• Initial knowledge or practical experience in astronomy, spaceflight, satellite tracking, or optical observation systems.
• Flexible working: flexible working hours through a flextime system, hybrid working—whether from home or in our beautiful office in Düsseldorf.
• Modern technology & real challenges: together with us, you will work on exciting and diverse projects that solve real problems.
• Small teams, big impact: with us, you will join a young, open, and supportive team. Here, you will always find the right people to turn to.
• Personal onboarding & development: we support you from the very beginning and in your continuous professional development.
• Fair compensation & benefits: transparent salaries, health benefits, a dog-friendly office, and a 50% discount on your job ticket.

Does that sound like your new dream job?