Sebastian Weberg

Sebastian Weberg

Senior Director (Ex-McKinsey) at NTT Data

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Hi, I’m Sebastian - a strategy and business value advisor with experience across consulting (McKinsey & Company), investment banking (Credit Suisse), and large-scale technology transformation (NTT DATA).

I currently work at NTT DATA, where I help shape and win complex, high-impact deals ($50M–$200M+), translating technology into clear business outcomes and ROI. Before that, I was at McKinsey & Company, advising private equity clients and global companies on strategy, due diligence, and growth opportunities. I started my career in investment banking at Credit Suisse, working on IPOs like Zoom, Lyft, Pinterest, and CrowdStrike.

Across these roles, I’ve spent a lot of time operating in high-performance, ambiguous environments - whether building executive narratives, solving complex business problems, or guiding teams through critical decisions. I’ve also been actively involved in interviewing and coaching candidates, and I enjoy helping others navigate pivotal career moments.

How I can help you:

  • Breaking into consulting, strategy, or finance (CV, case interviews, positioning)
  • Transitioning between industries or roles (e.g., banking → consulting → tech)
  • Structuring complex problems and communicating with clarity
  • Building confidence in high-stakes professional environments
  • Thinking through long-term career direction and trade-offs

My mentoring style is practical, honest, and tailored to you. I won’t give generic advice, I’ll help you think clearly, challenge your assumptions, and leave each session with concrete next steps.
Outside of work, I’ve been a competitive athlete (NCAA Division I ice hockey and Norwegian national team), which has shaped how I think about discipline, resilience, and performance under pressure.
If you’re motivated, curious, and looking for guidance, I’d be honored to support you.