Online Media Buyer (10Bet)

OpenTag Open · verified Sep 10, 2026

Hybrid Sofia Full-time Mid-level Paid Media

Mid-level Paid Media role at OpenTag. Sofia · full-time.

Role brief

Growth Roles summary, based on the employer's posting.

What you'll do

Build and optimize mobile app acquisition campaigns across ad networks, native placements, and DSPs
Configure MMPs for attribution, deep links, event tracking, and SKAN compliance
Test static, video, and playable creatives to improve installs and post-install quality
Manage budgets, bids, pacing, and campaign structure while tracking ROI and retention
Operate DSP and ad network campaigns, assess traffic quality, and scale new acquisition sources

What you bring

At least four years of hands-on media buying or user acquisition work focused on mobile apps
Direct experience building, running, and optimizing DSP campaigns plus ad networks such as ExoClick, Traffic Junky, or TrafficStars
Working knowledge of AppsFlyer, Adjust, or similar MMPs, including attribution and cohort analysis
Strong data skills across BI dashboards, Excel or Google Sheets, and performance reporting
Fluent English, independent execution, and experience managing substantial budgets with measurable ROI

Who this fits

You’ll fit this practitioner role if you have personally operated acquisition channels rather than only overseeing agencies or vendors. Experience in online gambling or sports betting is a strong advantage, as is familiarity with iGaming rules across markets. The full-time position is hybrid and based in Sofia, Bulgaria.

From the employer

Location: Sofia, Brand: 10bet

About the Role

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.

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.
Preferred Qualifications
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).

Key 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.