- Senior .NET Engineer & Azure Architect

Build cutting-edge .NET and Azure solutions with a team that values engineering excellence.

We’re not just hiring. We’re building a world-class engineering team.

If you’re a seasoned .NET engineer with deep Azure expertise, and you’re ready to architect elegant solutions at scale, lead high-impact projects, and influence technology direction at a consulting software company — we want to meet you.

We are an agile, engineering-led software company building innovative, enterprise-grade solution across industries. Our solutions power mission-critical workflows for Switzerland-based international enterprises. Quality, scalability, and developer experience are at the heart of everything we build.

The Role

You will be both hands-on and strategic — designing complex, scalable cloud architectures in Azure, leading technical decisions, mentoring other engineers, and driving engineering excellence across the stack.

What You’ll Be Doing

• Architect, build, and scale modern .NET applications hosted in Azure (App Services, Azure Functions, AKS, etc.)
• Design resilient, secure, and high-performing cloud infrastructure using Azure best practices
• Lead solution design sessions with clients and cross-functional teams
• Collaborate with product and engineering leadership to shape technical roadmaps
• Perform code reviews, mentor junior engineers, and set the bar for engineering quality
• Champion DevOps, CI/CD, IaC, observability, and automation across projects

What You Bring

• Only candidates with Swiss citizenship or a valid Swiss work permit will be considered. EU-nationals willing to relocate to Switzerland (and obtain the correspoding Swiss work permit) are also included
• Strong German and English language skills
• 7+ years of professional experience in .NET (C#) development, including development of Entity Framework-based solutions
• 3+ years of hands-on experience architecting and deploying solutions in Microsoft Azure
• Strong grasp of established architecture patterns
• Experience with Azure services like Azure App Services, Functions, Azure SQL, Azure Storage, Key Vault and such.
• Solid understanding of Azure DevOps CI/CD pipelines
• A pragmatic mindset with a strong focus on performance, reliability, cost-efficiency and maintainability
• Excellent communication and stakeholder management skills — you can speak to both code and business value
• Azure Certifications (share a link to your transcript for us)
• Contributions to open-source projects or tech blogs
• Frontend development knowledge
• Knowledge of a data platform, such as Microsoft Fabric or Databricks.

What We Offer

• Competitive compensation + benefits (such as GA Abo, fitness studio membership, lunch card, and others)
• Remote possible, with offices and team presence in Winterthur, Switzerland
• A tight-knit team of world-class engineers who love what they do
• A yearly company workation (where we work for one week in the Bündner Alps to decompress and enjoy sports)
• A no-ego culture built on respect, learning, and autonomy

Ready to Build What Matters?

This is a rare opportunity to join a team where your skills, ideas, and leadership will make a lasting impact. We hire thoughtfully, invest deeply in our people, and build software we’re proud of.

Apply now or connect with us to start a conversation. Send your application and CV to operations\@/option40.com and let’s get the conversation going.