Senior C#.NET Architect – Fintech AI Platform

Cryptonow; Wien; Hybrid; EUR 90.000 - 130.000; Vollzeit

Benefits dieser Stelle

Ownership over architecture

Vienna or Baar office

Hybrid work

Competitive pay

Growth opportunities

Zusammenfassung

Cryptonow is seeking an experienced C#.NET developer to own critical architecture and business logic for our brokerage and voucher card platforms. You’ll translate complex regulatory and financial requirements into robust, maintainable systems, using AI as a multiplier while preserving human judgment.

You’ll collaborate with product, compliance, and other engineers to ensure scalable, secure, and EU-compliant solutions, with hybrid work from Vienna or Baar and a strong focus on quality and

Qualifikationen

• 5+ years of professional C#.NET development with ASP.NET Core and Blazor.
• Experience designing and maintaining complex business-critical systems.
• Strong databases knowledge (SQL Server or PostgreSQL) and REST API design.
• Cloud infrastructure experience, preferably AWS, and familiarity with fintech/crypto contexts.
• Ability to evaluate AI-generated code and ensure regulatory and financial accuracy.
• Excellent communication skills and fluency in English (German a plus).

Aufgaben

• Design, build, and maintain C#.NET applications powering our brokerage and voucher card platforms.
• Translate regulatory and business requirements into robust technical designs.
• Leverage AI coding tools while owning code quality, architecture decisions, and edge-case handling.
• Review AI-generated code for correctness, security, and business logic.
• Architect and maintain integrations with external partners, payment providers, and crypto infrastructure.
• Identify performance, security, and scalability risks and design proactive solutions.
• Mentor developers on technical best practices and responsible AI tooling.
• Collaborate with product and compliance to meet EU regulatory standards.
• Write clean, well-documented, testable code and participate in code reviews and planning.

Kenntnisse

C#.NET

ASP.NET Core

Blazor

Clean Architecture

Architecture

Databases

REST API

AWS

AI tools

Tools

SQL Server

PostgreSQL

REST APIs

AWS

Jobbeschreibung

Cryptonow is seeking an experienced C#.NET developer to own critical architecture and business logic for our brokerage and voucher card platforms. You’ll translate complex regulatory and financial requirements into robust, maintainable systems, using AI as a multiplier while preserving human judgment.

You’ll collaborate with product, compliance, and other engineers to ensure scalable, secure, and EU-compliant solutions, with hybrid work from Vienna or Baar and a strong focus on quality and