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Senior Full-Stack Engineer - C# & React

Novasign • 🌐 In Person

In Person Posted 12 hours, 15 minutes ago

Job Description

At Novasign, we're redefining the future of 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 scaling fast with a growing customer base across biotech and life sciences. If you're looking to make a real-world impact with cutting-edge machine learning and SaaS technology, we want to hear from you. We're hiring ten new team members in the next four months, and this role is critical in driving our growth.

Role Summary

We seek a C#/ASP.NET full-stack engineer with deep React expertise to design and build robust, scalable gRPC and REST APIs for Novasign Studio. You'll work on core systems, focusing on high-performance APIs, real-time SignalR applications, and modern React interfaces while applying strong OOP and Domain-Driven Design principles and collaborating with our software engineering and consulting teams to deliver high-quality, maintainable solutions.

Responsibilities

Design and implement microservices and APIs using C#/ASP.NET Core, gRPC, REST, and SignalR

Build modern React (Next.js) interfaces and real-time features (SignalR, WebSockets)

Apply OOP, SOLID, DDD, modular design, and composition principles

Collaborate in Agile/Scrum teams, participate in code reviews, and contribute to architectural documentation

Requirements

Bachelor's/Master's in Computer Science, Software Engineering, or related field

5+ years C# \& ASP.NET Core, OOP, LINQ, DDD

5+ years React, JavaScript/TypeScript

gRPC, Protocol Buffers, REST, SignalR, WebSockets

SQL/EF Core, Docker, Ubuntu (WSL2), CI/CD pipelines

Authentication (OAuth2/OIDC, JWT), API documentation (Swagger/OpenAPI), Git workflows

Testing: xUnit, Jest, React-Testing-Library; unit, integration, functional

Microservices architecture, SOA, Event-Driven Architecture (RabbitMQ, Kafka)

CSS frameworks (Material UI, Bootstrap, Tailwind)

Bash/CLI, Git, Agile/Scrum

Excellent English communication

Nice to have experience with Kubernetes and tools like Tilt, Kubectl, K9s and AWS EKS

Nice to have previous experience with Python

Nice to have hands-on experience with Identity Providers, OAuth, SAML2, OIDC

Benefits

Innovation Culture: We are an international team. We value new ideas, open discussions, and constructive criticism. Your voice shapes our technological direction

Professional Growth: Continuous learning opportunities and career development in cutting-edge software

Meaningful Impact: Work on software that accelerates life-saving therapies, enzyme manufacturing and sustainable food production

Competitive Package: We offer an attractive salary above industry standards, complemented by comprehensive benefits, including a free food allowance. In accordance with the IT collective agreement (minimum ST1 - Regelstufe), the minimum gross annual salary is €53,802; however, your actual compensation will reflect your skills, experience, and impact and will be significantly higher

Full time (38,5 h/week) - 25 days of paid holidays per full calendar year

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