Ceren D. Karabulut🔹
Co Executive Director @ Effective Altruism Turkey
About
After graduating from sociology, I spent several years at Vodafone Turkey as a Customer Experience Lead for the B2B segment: Designing and improving the journeys enterprise clients went through across every channel (superapp, website, retail shops, call centre). From onboarding to billing to re-engagement, across products ranging from cybersecurity software and workplace fiber to vehicle tracking and energy management systems. What I realized along the way is that I love designing experiences for communities of people working toward something. Whether that's enterprise clients getting value from a product, EA Turkey members figuring out their careers, or global health fellows developing as advocates, the core work feels the same: Understand the community, map their journey, measure improvements, and constantly listen to the "voice of the customer." In 2025, I left Vodafone to focus on exactly this kind of work in the social impact space. I am part of the founding team of Health Progress Hub: An organisation helping high-impact global health organisations scale their projects into new countries. We also design and run fellowships for junior and mid-career public health professionals in LMICs. Our mission is to connect organizations with skilled talent and empower their policy advocacy efforts, fostering impactful, sustainable change worldwide. My focus is fellow and community communications, outreach, and building a community that cares about making global health as effective as possible. At Effective Altruism Turkey, I lead online programs that help new members get into the community, and organise in-person events and conferences that bring everyone together across a range of cause areas. I also co-lead the EA Istanbul Summit, which I helped organise last year and am running again this year. I'm passionate about community experience design, programme building, and events and I'm actively looking to take on more in this space and learn from others doing this work well.
Türkiye
Ankara
Non-profit Organization Management
Paydaş Yönetimi, Medya Satın Alma, İletişim, Sorun Çözme, Microsoft Excel, Sunumlar, Entrepreneurship, Public Speaking
Experience

CX Design Lead
Türkiye
- Lead the measurement and enhancement of Net Promoter Score (NPS) for Vodafone Business, targeting improvements across SME and SOHO client segments. - Strategize and implement solutions to resolve customer issues with Vodafone Business products and services, enhancing overall client satisfaction and loyalty. - Increase efficiency in addressing customer pain points by fostering internal collaboration with key stakeholders, streamlining processes and enhancing service delivery.

Marketplace Growth Lead
- Executed the setup of ad campaigns for Vodafone’s global loyalty platform “Happy”, managing different ad units featuring banner ads from various partner brands. - Implemented effective strategies to enhance outbound communication by sending targeted Push notifications and text messages to customers, ensuring timely and relevant updates on ongoing campaigns. Increased CTA 98% on average. - Leveraged company's Data Warehouse that hosts 24M customer data, to analyze and create specific audience segments with key characteristics, resulting in a notable increase in the conversion rate of outbound communications.

Digital Product Lead
- Tracked key metrics informing the success of Vodafone Turkey’s e-commerce platform, such as traffic funnel, daily sales, and retention, using Adobe Analytics. - Conducted personalized experiments (including pop-ups, banners, offers, and A/B tests) based on behavioral user data from 19 million monthly active app and web users, to optimize these metrics; also designed the visuals used in these experiments. - Key results: Achieved a 55% increase in push notification conversion rates, a 10% increase in average units per cart, a 21% average decrease in refund rates, a 25% increase in unique visitors, and a 14% decrease in deep detractor customers.

Media Planner
Istanbul, Turkey
- Planned a communication campaign to achieve desired KPIs such as increasing app sessions to Vodafone’s super-app and increasing awareness on Vodafone’s e-commerce platform. - Introduced Medialyzer (a tool that enable companies to measure the incremental impact of their TV copies) to stakeholders so that company’s campaign budgets could be optimized. - Organized online and in person meetings, drafted meeting notes and keep all parties updated on the campaigns’ next steps.

Business Analyst Intern
Milan, Lombardy, Italy
- Scouted European start-ups within the retail sector, identifying emerging players and innovative technologies. - Created detailed profiles of these start-ups for clients, enhancing their understanding and facilitating informed decision-making.

Communications Intern
Ankara, Türkiye
- Drafted and revised communication materials, such as a monthly e-newsletter, presentations, news articles and press releases about the organization’s development projects. - Translated and localized over 20 global campaign materials to ensure Turkish audience’s accessibility. - Drafted and edited photo-stories about UNDP’s projects to demonstrate their impact on individuals and vulnerable groups such as women, children and refugees. - Managed Sustainable Development Goals’ (@kureselamaclar) Instagram and accounts and achieved 20% growth in terms of followers. - Assisted the production of a music video made in collaboration with a previous Eurovision winner to promote Sustainable Development Goals.
Ceren D. Karabulut🔹's Contact Information
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