Siem Los

Background

About Siem Los

Hi! I’m Siem — a global marketing and brand strategy leader with 10+ years of experience across international markets, working with brands including Cannondale, Duracell and Heineken.I specialize in developing and executing integrated marketing strategies and go-to-market plans that connect brand, product and culture. My work spans end-to-end campaign development — from strategic positioning and creative briefing to production, localization and multi-market rollout (Global and EMEA) across paid, owned and earned channels.I’ve led global product launches and partnerships, coordinating cross-functional teams, agencies and senior stakeholders to deliver consistent campaigns at scale. I enjoy translating business and audience insights into clear direction, and building the structure that allows creative work to land effectively in local markets.My background combines strategic thinking with operational execution: defining brand platforms, managing complex productions, and aligning regional teams around a shared vision while maintaining speed and quality.Core focus areas:Global Marketing | Brand Strategy | Integrated Campaigns | Go-to-Market | Partnerships | Localization | Creative Operations | Stakeholder Management | Multi-Market Rollout