Internship Description

Inaki de las Rivas ’26 spent the summer at Concentro, a climate fintech startup tackling a critical gap in renewable energy financing by brokering clean energy tax credits and developing an AI-powered SaaS platform to reduce diligence costs to unlock liquidity for projects that would otherwise stall. de las Rivas’s work spanned three areas: automating the review of messy legal and technical documents; restructuring internal data systems; and conducting a strategic market analysis of international renewable energy markets by mapping project lifecycles, identifying key bottlenecks, and proposing entry points to guide Concentro’s global expansion strategy.

At Concentro, a San Francisco–based climate fintech startup, I helped close the renewable energy financing gap by addressing transaction costs and legal complexities that hinder smaller clean‑energy projects. I developed and refined AI extractors that automate the review of messy legal and technical documents, making small‑scale tax credit transactions economically viable. I also restructured our internal data systems by migrating sales and operational data from HubSpot and Airtable into BigQuery and building dynamic Looker dashboards that transformed static spreadsheets into actionable management tools. Finally, I conducted strategic market analyses of international renewable markets, mapping project lifecycles, identifying bottlenecks, and suggesting entry points to guide Concentro’s global expansion. Together, these efforts advanced Concentro’s mission to unlock liquidity for renewable projects that would otherwise stall.

My business analytics coursework at Columbia Business School taught me how to structure messy datasets and think about durable solutions. Those skills were essential when designing AI extractors and migrating Concentro’s data into BigQuery. I also drew on my first‑year classes in global strategy and on my experience working with a Malaysian nonprofit that turned coconut waste into organic fertilizer. That project gave me a framework for market entry analyses, which I applied when evaluating Spain’s renewable sector. Throughout the summer, I consulted closely with my teammates, ensuring that the tools I built were robust and practical.

Managing steep learning curves in both technical and strategic domains was challenging. Analyzing international markets demanded a balance between high‑level insights and local feasibility. Spain, for example, has more than fifty gigawatts of distressed capacity and complex regulations, so I leaned on my local network to ground my recommendations. On the technical side, moving reporting from spreadsheets to a BigQuery–Looker system required not only coding and data modeling but also organizational change. I had to ensure that leadership trusted the new dashboards and understood that they provided consistent definitions rather than merely attractive visuals.

This internship was more than a professional assignment—it sparked a personal inflection point. Working at an early‑stage climate start‑up planted the seed that entrepreneurship could be part of my future. It also shifted my mindset from a consulting “deliver and move on” approach to one that values progress over perfection and designs for longevity. Finally, the openness and ambition of the Concentro team showed me how culture shapes outcomes. I leave with sharper technical and strategic skills, broader horizons, and renewed clarity about the career I want to build.