MOBKOI is a fast-growing mobile company headquartered in London, with offices across central Europe, US and Asia. We use the latest in mobile ad technology to help premium brands effectively reach and engage with their clients' audiences. Bringing to market the most selective site list of premium global and local publishers enabling brands to be selective of where their ads are going to run and thus ensuring brand safety. MOBKOI prides itself on offering full transparency, bespoke creative builds and local market coordination. We are part of The Brandtech Group, formerly known as You & Mr Jones, working with partners developing the best technology across the globe. Role Overview The Client & Media Executive supports the end‑to‑end delivery of advertising campaigns across allocated accounts. Working closely with Client & Media Managers, this role focuses on campaign activation, optimisation support, reporting accuracy, and operational excellence. You will play a key role in ensuring campaigns launch smoothly, deliver effectively, and are monitored with precision. This is a foundational role designed to build strong media execution skills, commercial awareness, and confidence in client lifecycle management within a programmatic‑first environment. Key Responsibilities Campaign Activation & Delivery Support ● Support campaign setup across Programmatic and Direct channels ● Assist with DSP builds and technical implementation ● Ensure accurate trafficking, creative approvals, and tracking implementation ● Monitor pacing and flag delivery risks or performance concerns ● Support optimisation adjustments under Manager guidance Performance Reporting & Analysis ● Prepare weekly and end‑of‑campaign reports ● Consolidate performance data across platforms ● Assist in generating client‑ready insight decks ● Maintain accurate budget trackers and documentation Commercial & Operational Support ● Support margin tracking and budget pacing ● Assist with reconciliations and invoice alignment ● Maintain accurate rate cards and internal documentation ● Escalate discrepancies or risks proactively Cross‑Functional Collaboration ● Work closely with Sales, Creative, TAM, Analytics, and Supply teams ● Ensure internal systems are updated accurately ● Contribute to smooth campaign handovers and launches Required Skills & Experience ● 1–2 years’ experience in digital media, agency, publisher, or adtech ● Exposure to campaign management or programmatic environments preferred ● Strong attention to detail and organisational skills ● Comfortable working with data and Excel ● Analytical mindset with eagerness to learn ● Ability to manage workload in a fast‑paced environment This role operates in a high‑standards, fast‑moving environment and requires someone motivated to learn, take ownership, and deliver quality work. You should be comfortable balancing independent work with cross‑functional collaboration. Location London Hybrid: Monday, Tuesday, Wednesday Language English European Language -Bonus You may have experience of the following: Client Services Executive, Digital Media Executive, Programmatic Executive, Campaign Executive, Junior Account Executive, Ad Operations Executive, Media Activation Executive, Client Delivery Executive, Campaign Trafficking Executive, Digital Campaign Coordinator, Programmatic Coordinator, Advertising Operations Coordinator, Media Planning Assistant, Media Trading Assistant, Performance Marketing Assistant, and Digital Account Support Executive. REF-(Apply online only)