Job Description

Smadex is a Barcelona-born Demand Side Platform delivering performance and transparency in programmatic for clients across America, Europe, and Asia. We’re growing our Creatives Studio to become one of the best and biggest creative performance teams in the ecosystem, building scalable creative solutions that drive measurable outcomes.

We’re seeking a Creative Technologist with a CTV and mobile focus to bridge the gap between creative services, technical delivery, and campaign performance for our highest-value advertisers.

Reporting to the Creative Solutions Director, this role sits at the intersection of Creative Services, Creative Innovation and Product , ensuring clients receive reliable, testable, high-performing CTV, interactive and mobile creative experiences - and that we can iterate quickly based on clean measurement and structured experimentation.

You’ll have the chance to shape not just what we build for CTV and mobile, but why it works , how we ship it reliably , and how we scale those learnings across accounts.

 

Key responsibilities

CTV Creative Technology & Experience Development 

• Build and extend CTV creative experiences , including interactive formats and playable-like executions where feasible.
• Translate creative ideas into functional prototypes and scalable templates (fast iteration, production-ready standards).
• Design CTV-first UX patterns (lean-back attention, readability at distance, remote/touchless interaction logic).
• Optimize for CTV constraints: performance budgets, rendering quirks, device/app limitations, and compliance requirements.

CTV E2E Testing, QA & Delivery Reliability

• Own and evolve a CTV end-to-end testing approach spanning: creative build → ad serving → device/app playback → tracking/reporting.
• Define test matrices and QA checklists (devices, environments, orientations, connection conditions, ad-path variations).
• Debug delivery and measurement issues across the chain and create repeatable workflows for resolution.
• Introduce automation where possible (test harnesses, validation scripts, pre-flight checks) to reduce production risk.

Cross-Functional Leadership & Client Enablement

• Act as connective tissue between Account Management, Creative Dev, Ad Ops, and Product on CTV initiatives.
• Define clear workflows and handoffs to reduce bottlenecks and accelerate time-to-launch.
• Support high-stakes client conversations with technical confidence: feasibility, timelines, QA expectations, and measurement plans.
• Partner with Product on tooling and capability gaps needed to scale CTV interactive output.

Knowledge Management & Best Practices

• Build and maintain a CTV creative repository : patterns, do/don’t guidelines, specs, QA standards, learnings, and case studies.
• Share insights across teams through internal sessions, documentation, and repeatable templates.
  
   

Skills and qualifications

Required

• 3-7+ years in creative technology, interactive development, ad tech creative production, or performance creative engineering.
• Strong proficiency in JavaScript/HTML5 and building interactive experiences under real-world constraints.
• Experience shipping and supporting creatives end-to-end (QA, troubleshooting, ad delivery realities, instrumentation).
• Ability to translate performance/measurement needs into clear event tracking + experimentable variants .
• Strong cross-functional collaboration skills and comfort working in fast-paced environments.
• Clear communication: able to explain technical tradeoffs to non-technical stakeholders.

Preferred

• Hands-on experience with CTV environments (device/app constraints, playback behavior, interaction patterns).
• Experience with CTV E2E testing (device labs, automation frameworks, test matrices, validation tooling).
• Exposure to CTV & playable-style ads, interactive video, or gamified ad formats.
• Familiarity with programmatic concepts and the practicalities of ad serving & tracking in video/CTV workflows.

Success Metrics

• Reduction in CTV creative-related delays and fewer last-minute delivery issues.
• Increased iteration velocity for CTV creative testing across high-value accounts.
• Higher reliability: improved pass rates on QA, fewer bug regressions, fewer “unknown” delivery failures.
• Increased adoption of CTV best practices: playbooks created, templates shipped, teams enabled.
• Stronger measurement signal: consistent event instrumentation and more actionable learnings from tests.

What’s in it for you?

• Be part of a leading, fast-growing, innovative company shaping the future of mobile and CTV advertising.
• Join a highly motivated and young team.
• Possibility of traveling to the Barcelona HQ for collaboration and team-building activities after your first year.
• Great compensation package tailored to the U.S. market.
• Medical, dental, and vision benefits plans.
• Exposure to leading global app publishers and media partners in the digital advertising industry.
• Learning and training opportunities to grow your career.

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