Senior Front-End Developer - React

About the Job

At Novasign, we're reshaping bioprocessing. Our platform, Novasign Studio, combines intelligent hybrid models, automation, and modern microservices (SOA) architecture to accelerate the development of life-saving therapies, next-generation enzymes, and sustainable food technologies. We're rapidly growing and seeking a Senior Front-End Developer with React (Next.js) expertise.

Role Summary

We are looking for a Senior Front-End Developer to build modern, user-friendly, and performant interfaces. You will design and implement real-time, data-rich applications, collaborating closely with our software engineering and consulting teams. Experience with C#/ASP.NET Core, Python, and API design is valued.

Responsibilities:

• Develop and maintain modern React/TypeScript (Next.js) interfaces with real-time features (SignalR, WebSockets)
• Collaborate with back-end engineers on gRPC and REST API design and contracts
• Apply best practices: OOP, SOLID, modular and composable design
• Work in Agile/Scrum teams, participate in code reviews, and contribute to architectural documentation
• Ensure high-quality, maintainable, and testable code with a strong focus on user experience

Skills & Education

• Bachelor's or Master's degree in Computer Science, Software Engineering, or related field
• 5+ years professional experience with React and TypeScript + Next.js
• Expertise in data fetching and caching with React Query (or similar)
• Strong understanding of real-time applications (SignalR, WebSockets) and collaborative UIs
• Proficiency in state management, UI component libraries, and modern build tools
• Hands-on experience with testing frameworks (Jest, Playwright, React Testing Library)
• Solid knowledge of CSS frameworks such as Material UI
• Experienced in Agile/Scrum workflows with excellent English communication skills

Bonus / Optional Skills

• Knowledge of C#/ASP.NET and/or Python
• Proficiency in data visualization libraries (ECharts, Plotly, HighCharts)
• Exposure to Kubernetes and cloud platforms (AWS, GCP, Azure)
• Familiarity with Storybook for component-driven development
• Familiarity with gRPC, and REST API integration
• Working knowledge of SQL, Docker, and CI/CD pipelines

Benefits

• Innovation Culture: International team, valuing new ideas, open discussions, and constructive criticism.
• Professional Growth: Continuous learning opportunities and career development.
• Meaningful Impact: Work on software that accelerates life-saving therapies, enzyme manufacturing and sustainable food production
• Competitive Package: Attractive salary above industry standards, including a free food allowance.
• In accordance with the IT collective agreement (minimum ST1 - Regelstufe), the minimum gross annual salary is €53,802.
• Full time (38,5 h/week) - 25 days of paid holidays per full calendar year

Novasign, a Vienna-based biotech company, is revolutionizing bioprocess development with advanced machine learning tools. A spin-off from the University of Natural Resources and Life Science Vienna, Novasign aims to accelerate the creation of new molecules and biosimilars. Located near the Vienna Institute of Biotechnology, Novasign focuses on cutting-edge technology within the biotech sector, improving efficiency and reducing time-to-market.