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Hi, I’m Kosta Diamantopoulos, a performance-driven digital media professional focused on building adaptable, cross-channel skillsets that drive growth. I thrive on understanding the why behind campaigns, and I love turning data into actions that move traffic, convert leads, and scale business performance. Over the years I’ve led full campaign activations for Telstra Belong at Omnicom, built measurement stacks, and steered multi-channel programs across Meta, Google, DV360, TikTok, and The Trade Desk. I enjoy crafting systems and automation (speed-to-lead and CRM flows) that convert clicks into customers, and I’m energized by helping both global brands and local business owners scale their impact.…Hi, I’m Kosta Diamantopoulos, a performance-driven digital media professional focused on building adaptable, cross-channel skillsets that drive growth. I thrive on understanding the why behind campaigns, and I love turning data into actions that move traffic, convert leads, and scale business performance. Over the years I’ve led full campaign activations for Telstra Belong at Omnicom, built measurement stacks, and steered multi-channel programs across Meta, Google, DV360, TikTok, and The Trade Desk. I enjoy crafting systems and automation (speed-to-lead and CRM flows) that convert clicks into customers, and I’m energized by helping both global brands and local business owners scale their impact.

Kosta Diamantopoulos

Social Media Manager, Content Producer, Project Manager, +7

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Hi, I’m Kosta Diamantopoulos, a performance-driven digital media professional focused on building adaptable, cross-channel skillsets that drive growth. I thrive on understanding the why behind campaigns, and I love turning data into actions that move traffic, convert leads, and scale business performance. Over the years I’ve led full campaign activations for Telstra Belong at Omnicom, built measurement stacks, and steered multi-channel programs across Meta, Google, DV360, TikTok, and The Trade Desk. I enjoy crafting systems and automation (speed-to-lead and CRM flows) that convert clicks into customers, and I’m energized by helping both global brands and local business owners scale their impact.…Hi, I’m Kosta Diamantopoulos, a performance-driven digital media professional focused on building adaptable, cross-channel skillsets that drive growth. I thrive on understanding the why behind campaigns, and I love turning data into actions that move traffic, convert leads, and scale business performance. Over the years I’ve led full campaign activations for Telstra Belong at Omnicom, built measurement stacks, and steered multi-channel programs across Meta, Google, DV360, TikTok, and The Trade Desk. I enjoy crafting systems and automation (speed-to-lead and CRM flows) that convert clicks into customers, and I’m energized by helping both global brands and local business owners scale their impact.

Available to hire

Hi, I’m Kosta Diamantopoulos, a performance-driven digital media professional focused on building adaptable, cross-channel skillsets that drive growth. I thrive on understanding the why behind campaigns, and I love turning data into actions that move traffic, convert leads, and scale business performance.

Over the years I’ve led full campaign activations for Telstra Belong at Omnicom, built measurement stacks, and steered multi-channel programs across Meta, Google, DV360, TikTok, and The Trade Desk. I enjoy crafting systems and automation (speed-to-lead and CRM flows) that convert clicks into customers, and I’m energized by helping both global brands and local business owners scale their impact.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Performance Manager at Metropolis Agency

August 1, 2025 - Present

Planned and ran Google Search/PMAX, Meta, and DV360 campaigns for AU property clients (e.g., JLL, Savills, St Yves); built measurement stack (GA4 + GTM, CM360 floodlights) with property variables and offline conversion uploads; led audience strategy using Roy Morgan + first-party data; structured prospecting/retargeting and lead-qualification forms to lift lead quality; owned onboarding to live workflow and collaborated with creative on wireframes and conversion paths; produced monthly reporting/SOPs and supported campaign rollouts; contributed to planning for Global Michelin Tyres with an offshore team.

Activation Executive at Omnicom Media Group (Resolution)

May 31, 2025 - October 13, 2025

Managed full campaign execution for Telstra Belong across Meta, Google, TikTok, Microsoft Ads, DV360 and The Trade Desk; paced activation, ensured QA, and aligned cross-channel efforts to full-funnel objectives; built weekly performance summaries and monthly presentations; handled monthly billings and client reporting; liaised daily with publishers/platform reps to hit targets; onboarded into live workflow and provided strategic input; supported planning for Global Michelin Tyres with an offshore team.

Activation Assistant at Omnicom Media Group

January 31, 2022 - October 13, 2025

Kicked off industry experience with Victorian Government campaigns; learned setup and reporting tools across Meta, Google, TikTok, Snapchat, LinkedIn, DV360 & TheTradeDesk; completed weekly PCA reporting; supported multiple platform activations and client communications, building foundational knowledge across cross-channel campaigns.

Social Media Manager at Series Futsal Victoria

June 30, 2024 - October 13, 2025

Overseeing all social media activity, posting daily, and managing a small team of producers, camera operators and photographers; handling match-day media, live-stream graphics, and interviews; producing podcasts and articles to generate engagement for TheCulturedFinish; coordinating seven State Leagues across independent apps.

Performance Manager at Metropolis Agency

August 1, 2025 - Present

Planned and ran Google Search/PMAX, Meta, and DV360 to drive qualified enquiries for prestige residential and industrial/warehouse assets. Built the measurement stack (GA4 + GTM, CM360 floodlights, offline conversions, Pagefeeds) and monthly reporting/SOPs. Led audience strategy using Roy Morgan + first-party data (Customer Match), structuring prospecting/retargeting and lead forms to lift lead quality. Onboarded teams to live workflow and collaborated with creative on wireframes and conversion paths.

Activation Executive at Omnicom Media Group / Resolution Digital

May 1, 2025 - October 13, 2025

Managed Telstra Belong always-on paid media across Meta, Google, TikTok, Microsoft Ads, DV360, and The Trade Desk. Built weekly performance reporting, paced campaigns daily, and presented monthly reports. Liaised with publishers and platform reps to ensure targets were met, collaborated with media planners, handled monthly billings, and optimized across all platforms while maintaining data-driven insights.

Activation Assistant at Omnicom Media Group

January 31, 2022 - October 13, 2025

Kicked off industry experience with constant campaign quantity for the Victorian Government. Executed in fully cross-channel activation across Meta, Google, TikTok, Snapchat, LinkedIn, DV360 & The Trade Desk; set-up and reporting; completed weekly PCA reporting.

Social Media Manager at Series Futsal Victoria

June 30, 2024 - October 13, 2025

Oversaw all social media activity, led a small production team, and managed match-day media (photography, live-stream graphics, social graphics). Produced interviews, podcasts, and articles to generate organic growth and maintain a buzz around TheCulturedFinish; managed seven state leagues via independent application WeFroth.