Mobile Game Developer (Unity)

Sorry, this job was removed at 12:08 p.m. (CST) on Wednesday, Oct 01, 2025
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Barcelona, Cataluña
In-Office
AdTech
The Role

Smadex is a leading advertising technology company founded in Barcelona in 2010 and sold to American-based and stock-listed Entravision in 2018 (NYSE::EVC). We power campaigns for Apps, Games and Brands across Mobile and CTV using advanced machine learning and optimized creative strategies to deliver results.

The Opportunity:

We are seeking a talented and passionate Mobile Game Developer with 2-3 years of proven experience in Unity to join our development team. In this role, you will be instrumental in bringing our game concepts from idea to execution, contributing to all stages of the development lifecycle for our exciting new mobile titles. If you are a driven developer with a strong grasp of Unity, a love for creating engaging mobile experiences, and a track record of successfully shipping games at scale, we want to hear from you!

Key Responsibilities:

  • Develop and implement core gameplay mechanics, features, and systems for mobile games using Unity
  • Write clean, efficient, and well-documented C# code
  • Collaborate closely with game designers, artists, and other developers to translate game design documents and art assets into functional game features
  • Optimize game performance, memory usage, and stability across various mobile devices (iOS and Android) to ensure smooth operation for a large player base
  • Debug and troubleshoot issues, identify bottlenecks, and devise effective solutions, particularly those impacting live games at scale
  • Integrate third-party SDKs and APIs (e.g., for ads, analytics, in-app purchases, backend services) crucial for scaling and monetization
  • Participate in code reviews, providing constructive feedback and adhering to coding standards
  • Stay up-to-date with the latest Unity features, mobile game development trends, and industry best practices
  • Contribute to the overall technical vision and strategy of our mobile game projects

Required Skills and Experience:

  • 2-3 years of professional experience in game development using Unity
  • Must have experience shipping mobile games at scale, demonstrating an understanding of the challenges and requirements of live operations, performance, and stability for a large user base
  • Strong proficiency in C# programming language
  • Solid understanding of Unity's various systems, including physics, rendering, UI, animation, and scripting
  • Proven experience developing and optimizing games for mobile platforms (iOS and Android).
  • Familiarity with common mobile game development challenges and solutions (e.g., touch input, screen resolutions, battery life)
  • Experience with version control systems (Git)
  • Excellent problem-solving and analytical skills, with a keen eye for detail
  • Ability to work effectively both independently and as part of a collaborative team
  • A strong portfolio showcasing relevant mobile game projects, with an emphasis on those that have been shipped and maintained at scale

Please note that we do NOT provide VISA sponsorship. Candidates without a legal permit to work in Spain won't be considered.

If you become a member of our team, you will get the chance to:

  • Integrate a highly motivated and young team
  • Great compensation package
  • Top location at the heart of Barcelona in a penthouse office with a rooftop terrace, Barbeque, and a fully stocked fridge
  • Great work-life balance: 2 days work from home, flexible hours
  • LinkedIn learning and training opportunities
  • Meal vouchers - Tickets Restaurant monthly allowance
  • Monthly gym allowance to use in up to 30 DIR gyms around the city
  • Monthly TGIF events
  • Regular team-building events
  • Fun and friendly work environment with talented marketers and engineers from over 21 countries
  • And more!

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The Company
Santa Monica, CA
107 Employees

What We Do

Smadex is the transparent DSP engineered for growth. The number one solution for user acquisition, retargeting and branding campaigns. We address the challenges and concerns of marketers by providing a fully transparent platform built on strong technology, countless programmatic management features and powerful machine learning algorithms that focus on achieving real outcomes.

Advertisers can access global consumers on the highest quality brand safe and viewable inventory at scale, and capture attention using strong and engaging ad formats to drive performance sales and brand metrics. Smadex partners with the leading third party platforms to provide the most innovative solutions and independent measurement.

Our open platform can easily plug and play with any new external partners. Smadex is a technology company led by engineering and data science, working with agencies and direct clients across the globe.

Smadex is a business unit of Entravision Communications (NYSE: EVC)

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