Hearts & Science is driven by the ambition to make a meaningful impact on the industry by challenging entrenched ways of working. Our focus is on smarter investment thinking, stronger partnerships, and disciplined execution to deliver measurable outcomes. We believe great media investment is about commercial rigour, performance, and accountability — delivering results for our clients and for the Hearts & Science business. At our core, Hearts & Science is about winning: negotiating effectively, executing with precision, and making decisions that drive value. It's about leaving your mark on the agency and the wider media landscape through best-in-class investment practices. Our People & Culture We substantially invest in our people and culture to foster a collaborative, energetic, and high-performing environment. We want everyone who joins Hearts & Science to build a rewarding and long-term career with us, supported by a comprehensive training programme focused on media fundamentals, investment excellence, and career progression. We actively support a healthy work-life balance and a positive culture through initiatives such as flexible working, wellness programmes, employee assistance, Summer Fridays, parental leave and loyalty leave, among others. The Opportunity As a Media Implementation Executive (Investment-focused), you will play a key role in activating and managing media investments across offline and digital channels, with a strong emphasis on traditional media buying and trading. You will ensure media plans are delivered accurately, efficiently, and in line with negotiated outcomes. This role offers exposure to offline channels such as TV, BVOD, OOH, radio and print, alongside digital, giving you a strong foundation in media investment and execution. What You'll Do Implement and manage media campaigns with a strong focus on offline and traditional channels Execute media buys, manage bookings, and ensure accurate delivery against negotiated deals Monitor pacing, budgets, and delivery to ensure performance and value are maximised Support post-campaign reporting, reconciliation, and performance analysis Own campaign accuracy and quality control across all executions Work closely with investment leads, media owners, and internal teams Contribute ideas to improve investment processes and trading outcomes What We're Looking For You have a commercial mindset, strong attention to detail, and an interest in how media investment drives results. You enjoy working with numbers, processes, and partners, and take pride in getting execution right. Understanding of media buying and trading, particularly offline channels Strong organisational and time-management skills Comfortable working with budgets, data, and reporting A collaborative team player with clear communication skills Eagerness to learn, develop investment expertise, and grow within media
