Staff Engineer / Technical Lead Azure/.NET

Meyandy LLC; Berlin; Vor Ort; EUR 90.000 - 130.000; Vollzeit

Zusammenfassung

Klarstein seeks a Staff Engineer / Tech Lead to steer the .NET and Azure platforms in Berlin. You will own architecture, drive cloud-native design, and mentor engineers while collaborating with DevOps, QA, and Product teams to improve reliability and developer productivity.

You will lead modernization efforts, shape engineering standards, and promote AI-assisted development to enhance quality and delivery. Excellent English skills are required.

Qualifikationen

• 8+ years of backend development with C#/.NET
• Extensive experience designing cloud-native systems on Microsoft Azure
• CI/CD, Infrastructure as Code (Terraform preferred) and observability
• Relational and NoSQL databases (SQL Server, Cosmos DB, MongoDB)
• Mentoring engineers, leading technical reviews, and fostering standards
• Excellent written and spoken English

Aufgaben

• Own architecture and technical direction of backend and cloud-native services
• Lead investigations, POCs, and modernization strategies
• Collaborate across .NET, PHP, DevOps, QA, Product teams
• Mentor engineers through design reviews, pair programming, and coaching
• Promote engineering excellence with testing, security, observability, and reliability
• Advocate AI-assisted development to boost productivity and quality

Kenntnisse

Backend (C#/.NET)

Azure Cloud

Architecture mindset

REST API design

Mentoring

English proficiency

Tools

Terraform

SQL Server

Cosmos DB

MongoDB

Service Bus

Jobbeschreibung

As Staff Engineer / Tech Lead Azure/.NET, you'll own the technical direction of our .NET and Azure platforms - leading the design of scalable, cloud-native solutions across a landscape that spans .NET and PHP-based e-commerce systems. You'll split your time between hands-on architecture work and technical leadership: driving key engineering decisions, mentoring engineers, and pushing the modernization of our platforms forward. You'll work closely with Software Engineers, DevOps, QA, and Product, and your decisions will directly shape engineering excellence, reliability, and developer productivity at Klarstein.

Staff Engineer / Technical Lead Azure/.NET — Berlinbrands, Berlin.

What you will do:

• Own the architecture and technical direction of critical services, leading the design and implementation of complex backend and cloud-native solutions
• Lead technical investigations, proof of concepts, and modernization/refactoring strategies — identifying technical debt and driving pragmatic long-term platform improvements
• Collaborate across .NET, PHP, DevOps, QA, Product, and external teams, translating business requirements into scalable technical solutions
• Mentor engineers through design discussions, code reviews, pair programming, and technical coaching
• Drive engineering excellence — best practices in testing, security, observability, and operational reliability, including incident/root-cause support and contributing to engineering standards and documentation
• Promote AI-assisted engineering practices to improve developer productivity and software quality

What we are looking for:

• 8+ years of professional backend development experience with C# and the .NET ecosystem (ASP.NET Core, .NET 8/10, Entity Framework Core, REST APIs, OpenAPI/Swagger), combined with a strong architectural mindset for designing scalable, resilient distributed systems
• Proven experience designing cloud-native systems on Microsoft Azure — including microservices, event-driven architecture, asynchronous messaging, and API-first design — with hands-on use of core Azure services (e.g. Service Bus, Event Grid, Azure Functions, App Services, Key Vault, Application Insights)
• Experience designing secure, cost-optimized cloud architectures (networking, identity/access management, application security), and building production systems with CI/CD, Infrastructure as Code (Terraform preferred), and observability practices
• Strong experience with relational and NoSQL databases (SQL Server, Cosmos DB, MongoDB) and working across heterogeneous systems — integrating .NET services, PHP applications, and third-party/enterprise platforms (e.g. SAP, REST/SOAP APIs)
• Track record mentoring engineers, leading technical reviews, and driving engineering standards across teams, ideally within Agile, cross-functional environments (Product, DevOps, QA, architects)
• Excellent written and spoken English

Nice to have:

• Familiarity with AI-assisted development tools (GitHub Copilot, Claude, Cursor, Windsurf) and using them to improve development, testing, and documentation workflows
• Deep grounding in clean architecture / domain-driven design principles
• Direct experience integrating with SAP or comparable large-scale enterprise platforms