Online Media Buyer (10Bet)

About the Position

Location: Sofia, Brand: 10bet

We’re looking for a results-driven Online Media Buyer with deep hands-on expertise in mobile app marketing, programmatic advertising (DSPs), and performance ad networks. You will join our performance marketing team and play a key role in driving user acquisition for 10bet’s online gambling and sports betting brands.

This is a practitioner role - we’re looking for someone who has genuinely operated these channels day-to-day, not just managed vendors or agencies.

Responsibilities

Mobile App Marketing

• Plan, execute, and optimize mobile user acquisition (UA) campaigns across channels including ad networks, native ads, DSPs.
• Manage MMP platforms (AppsFlyer, Adjust) for attribution, deep linking, event tracking, and SKAN/SKAdNetwork compliance.
• Run creative testing cycles (static, video, playable) to maximize install rates and post-install quality.
• Monitor and improve campaign KPIs: CPI, ROAS, D7/D30 LTV, retention rates.
• Hands-on experience configuring app campaigns - not just reviewing reports, but building and optimizing campaigns directly in the platforms.

Programmatic Advertising (DSP)

• Operate DSP platforms (e.g., DV360, The Trade Desk, Zemanta, Smadex, or similar) to run display, video, and native campaigns.
• Build and manage audience segments, deal IDs, PMPs, and real-time bidding strategies.
• Execute retargeting and prospecting campaigns with dynamic creative and audience layering.
• Analyze DSP reporting: win rates, bid landscapes, viewability, and conversion attribution.
• Test and scale new DSP sources with structured experimentation and data-driven evaluation.

Ad Networks

• Manage campaigns on performance ad networks including ExoClick, Traffic Junky, TrafficStars, and similar adult/mainstream traffic sources.
• Negotiate and manage direct placements, CPM/CPC/CPA deals with network account managers.
• Monitor traffic quality: fraud signals, bot traffic, viewability, and geo/device targeting compliance.
• Identify and onboard new network partners to expand reach and diversify acquisition channels.
• Maintain and grow a network of traffic sources with structured testing and scaling playbooks.

General

• Manage daily budgets, bids, pacing, and campaign structure across all channels.
• Collaborate with design, product, and analytics teams to align creatives, funnels, and targeting with growth goals.
• Provide regular performance reports with clear insights and actionable recommendations.
• Stay current on industry developments: privacy changes (iOS, SKAN), ad network updates, and competitor tactics.

Requirements

• 4+ years of hands-on experience as a Media Buyer or UA Manager with a focus on mobile app campaigns.
• Proven, practical experience with DSPs- you have personally built, managed, and optimized programmatic campaigns (not just supervised them).
• Direct experience with ad networks such as ExoClick, Traffic Junky, TrafficStars, or equivalent performance/adult traffic networks.
• Proficiency with MMPs (AppsFlyer, Adjust, or similar) -attribution setup, event configuration, cohort analysis.
• Strong analytical skills: comfortable with data platforms, BI dashboards, Excel/Google Sheets, and performance reporting.
• Track record of managing significant budgets with measurable ROI outcomes.
• Fluent in English, both written and verbal.
• Self-motivated, detail-oriented, and capable of working autonomously in a fast-paced environment.

Nice to Have

• Experience in the online gambling or sports betting industry -a strong advantage.
• Familiarity with iGaming regulatory requirements across multiple markets.
• Experience with additional DSPs or traffic platforms beyond the above.
• Knowledge of creative production pipelines for mobile (video, HTML5 banners, playables).

We Offer

• Competitive salary
• On-site work in Sofia, Bulgaria
• Opportunity to work in a dynamic performance marketing team
• Professional growth and development opportunities

About the Company

OpenTag is a leading company in the performance marketing space, dedicated to driving user acquisition and engagement for top brands in the online gambling and sports betting sectors.