Tobias Zimmergren

Open to new engagements

Hi, I'm Tobias

Technology leader and hands-on builder

CTO · AI engineering · Azure · Security · .NET

I help companies build secure products, cloud platforms, and AI-driven engineering teams. In more than 20 years I've been a CTO and co-founder, a principal lead at Microsoft, a head of security, and a founder, and I still stay close to the code.

What I can help with ↓

Work with me

What I can help with

I take on hands-on development, fractional leadership, and advisory engagements. I'm based in Malmö, Sweden, and used to working remotely across time zones.

  • Fractional CTO and technical leadership

    Tech strategy, architecture, and engineering leadership from plan to delivery, with teams across time zones.

  • Agentic AI engineering

    Building with AI and for AI: agentic engineering workflows, MCP servers, AI-backed APIs, and Azure AI Foundry.

  • Azure and cloud-native SaaS

    15+ years with Azure: software engineering, architecture, and security across cloud-native platforms and SaaS.

  • Security and compliance

    Secure-by-design products and compliance that holds up in audits: ISO 27001, SOC 2 Type II, and GDPR.

  • Software engineering and development

    Hands-on with the Microsoft dev stack as part of your team: backend APIs, distributed systems, custom SaaS solutions, and the end-to-end ecosystem from code to production.

My experience and background →