Senior Software Engineer

October 16, 2026

Senior

Barcelona

Description

A Senior Software Engineer is sought for the team behind a major mobile game, working on player-facing gameplay features and experiences. The role covers building competitions, progression systems, social and collaborative features, and live game experiences. Work takes place on large, complex C++ codebases with end-to-end ownership of features from concept through production, performance optimization and mentoring other engineers.

Responsibilities

Designing, implementing, and maintaining new systems and game features
Building high-quality, maintainable, and scalable C++ solutions
Working with large and complex codebases
Improving existing systems, architecture, and technical foundations
Taking ownership of features and systems from concept through production
Collaborating closely with engineers, technical leaders, designers, and product teams
Optimizing performance, scalability, and maintainability
Contributing to technical strategy and best practices
Coaching and mentoring other engineers
Building player-facing systems such as competitions, progression, social features, and live game experiences