Internship Project & Portfolio Management and Project Controlling 80-100%

Key facts

What you bring

• Bachelor’s or Master’s student, or recent graduate, in Business Administration, Finance, Economics, Industrial Engineering or a related field, with a strong academic record.
• Genuine interest in corporate finance, strategy, and how large organizations make investment decisions.
• Strong analytical skills: comfortable in Excel, able to build a clean model, and understand that a number without a story is useless.
• Clear writing and visual thinking: ability to compress a complex situation into one slide.
• Rigor and reliability: handling numbers that management relies on, noticing inconsistencies.
• Initiative: suggesting improvements rather than waiting to be asked.

Your tasks

• Run the monthly project controlling close as closing manager: coordinate actuals, forecasts, and variances across the portfolio, and challenge the numbers before they reach management.
• Build the portfolio view for senior management: prepare reporting, dashboards, and briefing material for the Executive Board and its committees by turning data from dozens of projects into actionable messages.
• Work alongside the Portfolio Manager and project controllers on project reviews: assess whether the business case remains valid, and whether budget, scope, and timeline are realistic.
• Identify what leadership should know that the status report does not convey.
• Shape the methodology: help design and test new templates, decision criteria, and governance formats, and see them used in real investment decisions.
• Find smarter ways to work: use data analysis, Excel, modeling, and AI tools to automate reporting and surface insights faster.

What they offer

• Internship in a dynamic environment rebuilding project portfolio management at a leading financial market infrastructure provider.
• Opportunity to work in a small, senior team on high-impact projects shaping investment decisions.
• Gain experience in corporate finance, strategy, and executive-level reporting.
• Develop analytical and modeling skills in Excel and AI tools, with the chance to implement improvements.
• Work on a self-defined analytical project with direct exposure to senior leadership.
• Collaborative environment with opportunities to challenge and refine processes.

About the role

SIX runs the infrastructure behind the Swiss and Spanish financial markets: exchanges, post-trade, financial information and banking services. Every year, SIX invests a substantial budget in projects that shape that infrastructure. The team ensures that investments deliver what was promised and provides the Executive Board with a clear view of the entire project portfolio. The internship focuses on rebuilding how SIX manages its project portfolio, including a new framework for allocating investment capital, decision formats for the Executive Board, and new ways to fund initiatives such as AI.

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