Senior .NET Engineer — Cloud-Native SaaS on AWS

Hub; Utrecht; Hybrid; EUR 95,000 - 140,000; Full time

Job summary

Mercell is seeking a Senior Software Engineer to join our engineering team. You’ll develop and optimize cloud‑native applications as part of a new SaaS platform, using ASP.NET, .NET Core, and AWS services.

You’ll work to ensure secure, scalable, high‑performance software and collaborate across teams to promote best practices. The role emphasizes problem-solving, clean code, and a strong SQL background, with a hybrid Utrecht location in the Netherlands and a collaborative culture focused on

Qualifications

• Senior‑level experience with the .NET ecosystem (ASP.NET, .NET Core, .NET Framework).
• Proven experience with cloud computing services, preferably AWS.
• Strong background in building web applications.
• Solid understanding of CI/CD, SDLC processes, and test automation.
• Adherence to clean code principles.
• Strong SQL knowledge and experience with stored procedures.

Responsibilities

• Design, develop, and maintain robust applications using ASP.NET, .NET Core, and .NET Framework.
• Integrate and optimize services within AWS (SNS, S3, RDS, ECS, EKS, Lambda, etc.).
• Support the creation of secure, scalable, and high‑performance software solutions.
• Collaborate with other teams to ensure architectural consistency and best practices.
• Provide expert guidance on platform improvements and technical challenges.
• Optimize database queries and maintain stored procedures.
• Contribute to CI/CD and SDL processes, with focus on test automation.

Skills

NET ecosystem

AWS cloud services

Web applications

CI/CD

Clean code

SQL proficiency

Problem solving

Job description

Mercell is seeking a Senior Software Engineer to join our engineering team. You’ll develop and optimize cloud‑native applications as part of a new SaaS platform, using ASP.NET, .NET Core, and AWS services.

You’ll work to ensure secure, scalable, high‑performance software and collaborate across teams to promote best practices. The role emphasizes problem-solving, clean code, and a strong SQL background, with a hybrid Utrecht location in the Netherlands and a collaborative culture focused on