Principal Software Engineer (F/M/X)

Key Responsibilities

• Architectural Design: Analyse client business requirements and design scalable, reliable, and secure end-to-end software solutions, with a primary focus on the .NET framework and Microsoft Azure platform or any other cloud platform.
• Technical Governance: Provide expert guidance and solve the most complex technical challenges for multiple development teams across the full technology stack, from frontend to backend.
• Pre‑Sales & Solutioning: Partner with the sales team to develop technical concepts, proposals, and effort estimations during the pre‑sales cycle.
• Client Engagement: Act as a primary technical point of contact for clients, effectively communicating architectural decisions, and translating business needs into technical specifications.
• Mentorship: Coach and mentor senior and junior engineers, promoting best practices in software development, security, and cloud architecture.
• Technology Strategy: Identify and evaluate emerging technology trends, contributing to strategic decisions that shape the company's technical direction.

Required Qualifications & Skills

• Significant professional experience in software engineering, with a demonstrable history of designing complex software architectures.
• Deep expertise in backend development using the .NET ecosystem (C#, .NETCore/6+, ASP.NET).
• Frontend Proficiency: Good command of modern frontend development, with expertise in at least one major JavaScript UI framework such as React, Angular, or Vue.js.
• Strong, practical experience with Microsoft Azure services, including compute, database, security, and container services (AKS).
• Proficiency in designing and implementing RESTful APIs and database schemas.
• Solid knowledge of system architecture, containerization (Docker), and orchestration (Kubernetes).
• Familiarity with software security best practices and identity management solutions (e.g., OAuth 2.0, OpenID Connect, Azure AD).
• Excellent communication and interpersonal skills, with a proven ability to work effectively with clients and cross‑functional teams.
• Full professional fluency in both German and English (written and spoken).

Desired Attributes

• A passion for high‑quality code, user experience, and attention to detail.
• A proactive, self‑motivated attitude with a desire for continuous learning.
• Experience in a consulting or agency environment is a plus.