This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Middle/Senior Unity Developer R&D; based in Spain.

As a Middle/Senior Unity Developer R&D;, you’ll help evolve a live mobile game by building new gameplay systems, LiveOps features, and scalable technical solutions.
You’ll work across the full development lifecycle, from implementing new mechanics to improving architecture, performance, stability, and maintainability.
A strong focus of the role is on modern AI-assisted development, with opportunities to integrate AI agents into real production workflows and automate recurring engineering tasks.
You’ll investigate real-world production issues using telemetry and profiling data, ensuring a smooth experience across a wide range of mobile devices.
The role also offers significant technical ownership, including participation in architectural decisions, code reviews, optimization initiatives, and development practices.




You’ll collaborate closely with other technical and product-focused team members while contributing ideas that can improve both engineering efficiency and the game itself.
This is an R&D-oriented; opportunity for a developer who enjoys solving complex technical problems, experimenting with new tools, and seeing their work make a measurable product impact.

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Accountabilities

• Develop and maintain gameplay systems and features using Unity and C# within a released mobile game, while evolving architecture and reducing technical debt.

• Implement and maintain LiveOps functionality, including events, promotions, seasonal content, and A/B testing.

• Work with Addressables, Asset Bundles, CDN delivery, and Remote Configs to enable content and feature updates without requiring a full application release.

• Actively use AI agents such as Cursor, Claude Code, or equivalent tools in day-to-day development on a real production codebase.

• Create and maintain internal AI skills, rules,

📌 Middle/Senior Unity Developer R&D (España)
🏢 Jobgether
📍 España