Smadex is a performance advertising engine for mobile apps, enabling the world's leading marketers to grow across Mobile and Connected TV (CTV). Headquartered in Barcelona, with teams across the Americas, EMEA, and APAC, Smadex is a business unit of Entravision (NYSE: EVC). Your Tasks and Responsibilities Architect Scalable Creative Tools: Lead the technical design, development, and delivery of core features across internal creative tooling utilizing modern Angular and Type Script.
Master High-Performance Runtimes: Guide the engineering of ultra-lightweight client-side components and interactive playable ads optimized for mobile webview performance, strict bundle-size limits, and sandboxed iframe execution.
Own Server-Side Pipelines: Architect and maintain resilient Node.
Js microservices and pipelines handling dynamic asset generation, headless bundling, and low-latency tracking/redirect logic.
Drive high-signal pull request reviews, author technical RFCs, introduce pragmatic automated testing, and proactively resolve technical debt.
Coach and mentor mid-level engineers, instilling best practices in web fundamentals, design patterns, and advanced debugging. 5+ years of professional software engineering experience, with deep expertise across modern Type Script in both client and server environments.
Advanced Angular Knowledge: Strong mastery of modern Angular architectures (Signals, Standalone Components, reactive state management, change detection strategies, and modular code organization). Solid Node.
Js Foundations: Strong grasp of DOM/Canvas performance, memory lifecycle management, iframe sandboxing,



post Message communication protocols, and asset loading optimization.
Architectural Judgment & Code Quality: Proven track record of conducting high-signal code reviews, designing maintainable systems, and introducing pragmatic automated testing.
Bonus Points: Familiarity with the digital advertising ecosystem (MRAID specifications, tracking macros, click-through handling, or attribution models). Experience with HTML5 Canvas, Web GL, or lightweight rendering libraries (Pixi JS, Phaser, Three.
Js) for interactive creatives.
Hands-on experience with modern Java Script bundlers and build tools (esbuild, Vite, Rollup, or custom AST transformation pipelines). Experience implementing automated CI/CD performance and bundle-budget monitoring.

What We Offer
Integrate a highly motivated, young and dynamic teamGreat compensation packageTop location at the heart of Barcelona with a rooftop terrace, Barbecue, and a fully stocked fridgeGreat work-life balance: work from home (2 days per week), adaptable hoursMeal vouchers
- Ticket Restaurant monthly allowanceMonthly gym allowance: Choose between Di R and WellhubLinked In Learning and training opportunitiesMonthly TGIF eventsRegular team-building eventsFun and friendly work environment with talented marketers and engineers from over 40 countriesAnd more If you want to know more

about us
visit our website, and for a sneak peek of the cool stuff we build check this video out Please note that we do NOT provide VISA sponsorship. Candidates without a legal permit to work in Spain won't be considered. #

📌 Senior Full Stack Developer (España)
🏢 Smadex
📍 España