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Head of Design & Conversion

Jelena Marković

Belgrade, Serbia

Psychology BSc, RCA design MA, seven years at a top London branding agency. Jelena designs sites that turn visitors into clients.

Jelena's first degree was in Psychology from the University of Belgrade, where she focused on cognitive bias and decision-making under uncertainty. Her second was a Master's in Design from the Royal College of Art in London, which she took specifically because she believed — correctly, it turned out — that the most underused field in marketing was the empirical psychology of how people actually decide things.

She spent seven years at one of London's top branding agencies before going independent in 2021, taking clients from financial services, healthcare, and high-end consumer brands. She joined Keltus to focus on the part of agency work she finds most rewarding: pairing serious engineering with serious design instead of the more common arrangement where one of those is treated as an afterthought.

Jelena writes a well-read Substack on the psychology of digital marketing, with subscribers across forty-seven countries. She speaks Serbian, English, and conversational Italian, paints in oils on the weekends, and has won the Keltus internal chess ladder twice — which, she will note, includes beating Pavel once. (Pavel disputes the rating settings.)