Job Overview
Location
Serbia
Job Type
Full-time
Category
Data Science
Date Posted
June 13, 2026
Full Job Description
đź“‹ Description
- • Own and optimize the TikTok ad account end to end, including campaign structure, bidding, budget allocation, and scaling to a 7-figure annual budget.
- • Drive sustainable, high-ROI growth by consistently improving CAC and maintaining strong ROAS across multiple geographies.
- • Systematically open and scale new markets by prioritizing, testing, and expanding TikTok campaigns across worldwide regions with independent geo-specific decisions.
- • Prepare and present a clear weekly channel strategy with performance context, key insights, and actionable next steps for stakeholder alignment.
- • Run a high-velocity creative testing pipeline to identify winning ad angles, hooks, and formats, and proactively manage creative fatigue by rotating and scaling winners rapidly.
- • Brief the creative team with data-driven feedback on ad content priorities, based on performance trends and audience response.
- • Build custom performance models, analyses, and reporting using Excel, Tableau, and Mixpanel to track channel efficiency and inform scaling decisions.
- • Partner with the data team to integrate attribution insights into campaign strategy and budget allocation for improved accuracy and impact.
- • Own the channel testing roadmap, including audience segmentation, bidding strategies, and landing funnel optimizations to maximize subscription conversion.
- • Monitor TikTok platform updates, ad product releases, and policy changes to adapt strategy quickly and maintain compliance and performance.
- • Research market trends, competitor ad creatives, and paid social best practices to identify untapped growth opportunities and bring tested, actionable proposals.
- • Operate autonomously with minimal oversight, taking full ownership of the TikTok channel as a profit center with clear ROI accountability.
- • Make all scaling and optimization decisions grounded in data, not intuition, using advanced Excel skills to build independent performance frameworks.
- • Maintain high performance under pressure by managing multiple parallel workstreams without compromising quality or speed.
- • Communicate insights, results, and recommendations clearly and directly in strong English to stakeholders across teams.
- • Ensure all activities align with D2C subscription growth goals, focusing on web-to-web conversion funnels to drive paid user acquisition.
- • Maintain deep expertise in TikTok’s platform mechanics, including audience targeting, ad formats, bidding algorithms, and creative testing methodologies.
🎯 Requirements
- • 3+ years of hands-on paid social experience with TikTok as the primary owned channel
- • Experience managing $200k+ in monthly ad spend with clear ROI accountability on TikTok
- • Proven track record of scaling TikTok budgets efficiently while maintaining strong ROAS
- • Advanced Excel skills and ability to build custom performance models and reporting frameworks
- • Multi-GEO expertise: running and scaling campaigns across multiple countries and languages with independent decision-making
- • Deep knowledge of TikTok’s ad platform: account structures, targeting, bidding, and creative testing methodology
🏖️ Benefits
- • Remote Work Environment: Work from anywhere with flexibility to promote work-life balance
- • Unlimited PTO: Unlimited paid time off to recharge without tracking days
- • Paid National Holidays: Paid time off for national holidays
- • Company-provided MacBook: Top-tier Apple MacBook provided for all employees who need one
- • Flexible Independent Contractor Agreement: Access to tax advantages, networking opportunities, reduced employment obligations, and full geographic freedom
Skills & Technologies
See exactly how your profile matches this role — strengths, skill gaps, and what to do about them.
About Ruby Labs Ltd.
Ruby Labs Ltd. is a London-based product studio that builds and scales consumer subscription mobile and web applications. The company focuses on health, wellness, and productivity verticals, developing apps such as Hint, Able, and the award-winning fitness platform FitCoach. Using data-driven growth and proprietary technology, Ruby Labs rapidly prototypes, launches, and iterates products to serve millions of global users. The team combines engineering, product design, and performance marketing expertise to create sustainable digital businesses. Founded in 2018, Ruby Labs operates a portfolio of self-funded apps, emphasizing user privacy, scientific validation, and long-term customer value.
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