Cerensa
About the company
Cerensa is a B2B ESG SaaS startup focused on helping companies measure and manage their carbon emissions, in alignment with protocols like GHG. It allows the creation of KPIs, calculation of performance, inventory of environmental impact and greenhouse gas emissions.
About the role
During my two years there as a Product Specialist, I had the opportunity to work across multiple touchpoints of the product lifecycle: from support and operations to communication strategy and product discovery. It was a hands-on experience that helped shape my thinking and skills as a future Product Manager.
Support & Customer Experience
In my first six months, I worked in customer support, setting client environments, updating emissions data, giving user access, answering tickets. This experience gave me a strong sense of customer needs and taught me how to listen, translate client pain points into actionables, and improve internal processes like ticket routing.
communication strategy
Later, I noticed a big gap in the company’s communication strategy. I took the initiative to create a 24-page strategic communication plan and presented it directly to the CEO.
The document included:
A clear problem framing and competitive analysis
Internal and external communication goals
Target audience definition
Concrete action plans and a timeline (5W2H)
This initiative taught me how to build structured, data-informed strategies and communicate them effectively across the company.
You can check the project PDF clicking in the image above!
Marketing Hands-on: Social Media
To bring the communication plan to life, I managed our social media presence on LinkedIn and Instagram for two months. By implementing organic inbound marketing strategies, I increased our following by over 600 users (a 15% growth at the time) with zero budget allocated for paid promotion.
product website
Around the same time, I identified that our sales process was entirely dependent on manual outbound prospecting, with the team hunting for leads on LinkedIn and leveraging existing networks. This was mostly because our product landing pages were outdated or nonexistent, leaving us with no place to attract inbound interest.
To solve this, I created five product-specific landing pages from zero using WordPress. This directly addressed a major business gap, resulting in a 25% increase in conversion over six months by capturing higher-quality, better-qualified leads. This project enhanced our online presence and diversified our sales strategy from purely outbound to a more efficient hybrid model.
Landing Pages
From Support to Discovery: Moving Closer to the Product
Toward the end of my time at Cerensa, I had the chance to go deeper into product discovery. I ran structured discovery sessions with four strategic clients: Wilson Sons, Grupo Ultra, Engie, and Libbs, to better understand their key needs, what was working, and where the product fell short. This helped us build a more consistent backlog and prioritize improvements across different modules.
Overall, my experience at Cerensa gave me a 360° view of how a product is built, positioned, and improved. From customer support to strategy, design, marketing, and discovery, I got to see and shape the product from different angles. Working in a startup pushed me to be resourceful, take ownership, and operate beyond my role, which, in many ways, is what product management is all about.