Principal Software Engineer (NET Core, C#, Angular (12+), TypeScript)

Eurofins Scientific is an international life sciences company, providing a unique range of analytical testing services to clients across multiple industries, to make life and our environment safer, healthier and more sustainable. From the food you eat, to the water you drink, to the medicines you rely on, Eurofins laboratories work with the biggest companies in the world to ensure the products they supply are safe, their ingredients are authentic and labelling is accurate.

The Eurofins network of companies believes that it is a global leader in food, environment, pharmaceutical and cosmetic product testing and in discovery pharmacology, forensics, advanced material sciences and AgroScience contract research services. It is also one of the market leaders in certain testing and laboratory services for genomics, and in the support of clinical studies, as well as in biopharma contract development and manufacturing. It also has a rapidly developing presence in highly specialised and molecular clinical diagnostic testing and in-vitro diagnostic products.

In over 37 years, Eurofins has grown from one laboratory in Nantes, France to over 65,000 staff across a decentralised and entrepreneurial network of more than 950 laboratories in over 1,000 companies across 59 countries. Eurofins companies offer a portfolio of over 200,000 analytical methods to evaluate the safety, identity, composition, authenticity, origin, traceability and purity of biological substances and products.

In 2024, Eurofins generated total revenues of EUR 6.95 billion; and has been among the best performing stocks in Europe over the past 20 years.

Job Title: PRINCIPAL SOFTWARE ENGINEER

We are looking for a skilled and motivated Full Stack Developer with strong expertise in .NET Core, Angular, SQL, and AWS. The ideal candidate will be responsible for designing, developing, and delivering scalable end-to-end solutions using Microsoft technologies and modern web frameworks.

Key Responsibilities

• Design and develop end-to-end applications using Microsoft technology stack
• Build and maintain backend services using .NET Core, C#, ASP.NET MVC, Web API, and Entity Framework
• Develop responsive front-end applications using Angular (12+), TypeScript, HTML5, and CSS3
• Work on n-tier architecture and ensure scalable, high-performance solutions
• Collaborate with cross-functional teams in an Agile (Scrum) environment
• Write and maintain unit tests (XUnit/ NUnit /MS Test)
• Implement RESTful APIs and web services
• Troubleshoot, debug, and resolve technical issues efficiently
• Provide technical guidance and mentoring to team members
• Participate in code reviews and recommend best practices

Nice to Have

• Experience with Message Queuing (MSMQ) / ESB
• Knowledge of TDD / ATDD practices (FitNesse preferred)
• Exposure to Agentic AI concepts/tools
• Experience with PowerShell scripting
• Previous experience in mentoring and leading teams
• International project experience

Soft Skills

• Excellent communication and interpersonal skills
• Ability to work in a global, cross-cultural environment
• Self-motivated, detail-oriented, and proactive mindset
• Strong collaboration and stakeholder management skills
• Ability to quickly learn new technologies and adapt to complex systems

• 8–12 years of hands-on experience in full stack development using Microsoft technologies
• Strong experience in backend development using .NET Core, C#, Web API, MVC
• Good knowledge of Angular (12+) and modern front-end technologies
• Strong working experience with MS SQL Server and database design
• Experience in Entity Framework and ORM tools
• Good understanding of Object-Oriented Programming (OOP) and design principles (SOLID)
• Experience with Service-Oriented Architecture (SOA)
• Hands-on experience with UML and design documentation
• Familiarity with Agile (Scrum) methodologies
• Exposure to AWS cloud services (deployment, hosting, or integration)
• Strong analytical and problem-solving skills