.NET Solution Architect

As a .NET Solution Architect at Cryptonow, you own the architecture and business logic behind critical parts of our brokerage platform and voucher card systems. You work closely with product, compliance, and other engineers to translate complex financial and regulatory requirements into robust, maintainable C#.NET systems, using AI as a force multiplier while maintaining the seniority to catch what AI tools get wrong and question obvious solutions.

What you'll do

• Design, build, and maintain C#.NET applications and services powering our brokerage platform and voucher card systems
• Translate complex business and regulatory requirements, including MiCAR compliance, financial transaction flows, and partner integrations, into clear technical designs
• Use AI coding tools to accelerate development while owning code quality, architecture decisions, and edge-case handling that AI tools routinely miss
• Review and critically evaluate AI-generated code for correctness, security, and business-logic accuracy before it ships
• Architect and maintain integrations with external partners, payment providers, and blockchain/crypto infrastructure
• Identify performance bottlenecks, security risks, and scalability issues, and design solutions proactively
• Mentor other developers on both technical best practices and effective, responsible use of AI tooling
• Collaborate closely with product owners and compliance stakeholders to ensure systems meet EU regulatory standards
• Write and maintain clean, well-documented, testable code and champion good engineering practices across the team
• Participate in code reviews, architecture discussions, and sprint planning

What you bring

• 5+ years of professional experience in C#.NET development, including ASP.NET Core, .NET 9/10, and Blazor, with a strong grasp of OOP and clean architecture principles
• Proven experience designing and maintaining complex, business-critical systems, not just CRUD applications
• Solid understanding of databases such as SQL Server or PostgreSQL, API design including REST, and cloud infrastructure, preferably AWS
• Comfort using AI coding assistants daily, with the seniority to know when to trust them and when to override them
• Strong analytical skills and the ability to deeply understand business logic, not just implement tickets
• Excellent communication skills, able to explain technical trade-offs to non-technical stakeholders
• Fluency in English required; German is a plus
• Based in Austria or Switzerland; open to occasional travel between offices and interest in working from the office once a week
• Self-driven, detail-oriented, and comfortable owning decisions in a fast-moving environment

Nice to have

• Experience with fintech, payments, or crypto/blockchain systems
• Familiarity with security best practices and regulatory considerations in financial software

What we offer

• A key technical role with real ownership over architecture and product direction
• Work from our Vienna or Baar office, both based in vibrant, well-connected fintech and crypto hubs
• Modern engineering culture where AI tools are embraced to remove grunt work and free you to focus on high-value problems
• The opportunity to work on cutting-edge crypto and fintech infrastructure at a licensed, regulated, EU-compliant company
• A collaborative, low-ego team that values judgment and craftsmanship
• Competitive compensation and opportunities for professional growth
• Flexible and hybrid working arrangements

About Cryptonow

Cryptonow has been dedicated to making crypto easy and accessible since 2017. We offer the European Cryptonow Brokerage Platform and Crypto Voucher Cards, and hold the MiCAR licence from the FMA (Financial Market Authority), ensuring compliance with the highest EU regulatory standards. We operate from offices in Austria and Switzerland, in the heart of Crypto Valley.