> Markdown version of [/jobs/ext/2960798-gameplay-ui-developer](https://www.wearedevelopers.com/jobs/ext/2960798-gameplay-ui-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Gameplay & UI Developer - **Company:** Número De - **Location:** Barcelona, Spain (Remote available) - **Contract:** Internship / Graduate position - **Skills:** Computer Animation, C Sharp (Programming Language), Video Game Development, Performance Tuning, HLSL - **Published:** September 17, 2026 - **Apply:** https://www.adzuna.es/contact-us.html ## About the Role The ideal candidate is a hands-on game developer with strong Unity and C# expertise, proven mobile game experience, and a passion for building polished and entertaining player experiences. + 5+ years of professional experience working with C# and Unity. + Proven track record of developing and shipping successful mobile games. + Strong understanding of gameplay development and the casual mobile gaming market. + Strong problem-solving skills with a focus on optimization, performance, and technical quality. + Experience developing UI, animations, gameplay systems, or other player-facing features. + Exceptional expertise in a specialized area such as animation, particle systems, shaders, architecture, performance optimization, or networking is a strong advantage. + Creative and hands-on approach to development, with a strong attention to detail and commitment to quality. + Ability to contribute ideas and make practical decisions in a fast-moving game development environment. + Excellent written and verbal communication skills in English. + Strong teamwork and collaboration skills. + Ability to work effectively with senior, multidisciplinary teams and take ownership of assigned features. ## Description This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Gameplay & UI Developer based in Spain. As a Gameplay & UI Developer, you will help create engaging, polished experiences for a globally successful mobile game. You will contribute to client-facing features with a strong focus on UI, animation, visual polish, and core gameplay improvements. Working within a small, senior, and multidisciplinary team, you will have meaningful ownership over ideas from design through testing and refinement. You will also develop new meta features and enhance existing systems based on player feedback and performance insights. The role combines technical expertise with creativity, giving you the opportunity to shape gameplay decisions and experiment with new ideas. This is a highly collaborative environment where your work can directly influence experiences enjoyed by millions of players worldwide. Accountabilities: You will contribute to the ongoing development and evolution of a live mobile game, taking ownership of features and improvements while maintaining a high standard of quality and player experience. + Develop client-facing gameplay features with a strong focus on UI, animations, visual polish, and overall user experience. + Design and implement core gameplay improvements that enhance engagement and playability. + Develop new meta features and systems that expand the game's experience. + Enhance, maintain, and refine existing gameplay and technical systems. + Bring innovative ideas and creative approaches to gameplay features while adapting them to the game's established experience. + Contribute to game design decisions and help translate concepts into polished, playable experiences. + Participate in testing, iteration, and refinement based on player feedback and team insights. + Collaborate closely with designers, developers, artists, and other specialists in a multidisciplinary environment. + Identify and resolve technical challenges while maintaining strong performance and optimization. + Take ownership of projects and features according to your individual strengths and areas of expertise. + Contribute to maintaining high technical and creative standards across the game. ## Related Videos - [Winning talents through play - Corporate Gaming with AKEYI](https://www.wearedevelopers.com/videos/1062-winning-talents-through-play-corporate-gaming-with-akeyi) - [Practical performance tuning for Serverless Java on AWS](https://www.wearedevelopers.com/videos/2075-practical-performance-tuning-for-serverless-java-on-aws) - [Live Coding an Augmented Reality Game with WebXR](https://www.wearedevelopers.com/videos/199-live-coding-an-augmented-reality-game-with-webxr) - [The Impact of AI on Game Development and the Industry](https://www.wearedevelopers.com/videos/100297-the-impact-of-ai-on-game-development-and-the-industry) - [Tour de Force: Open-Source LLM Inference Optimization from Simple to Sophisticated](https://www.wearedevelopers.com/videos/100099-tour-de-force-open-source-llm-inference-optimization-from-simple-to-sophisticated) - [Confuse, Obfuscate, Disrupt: Using Adversarial Techniques for Better AI and True Anonymity](https://www.wearedevelopers.com/videos/1456-confuse-obfuscate-disrupt-using-adversarial-techniques-for-better-ai-and-true-anonymity) ## Related Articles - [What Developers Can Learn from Indie Games](https://www.wearedevelopers.com/magazine/650-what-developers-can-learn-from-indie-games) - [What Jobs Can You Get with a Software Engineering Degree?](https://www.wearedevelopers.com/magazine/398-what-jobs-can-you-get-with-a-software-engineering-degree) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe)