Senior Core Engine Programmer – Glacier Engine Architect

IO Interactive A/S; Brighton; On-site; GBP 65,000 - 95,000; Full time

Job summary

IO Interactive in Brighton is seeking an experienced Core Engine Programmer to join our Engine team and drive the Glacier engine's core systems. You will shape architecture, own critical subsystems, and contribute to a scalable platform strategy across multiple projects.

You will write robust C++ code, optimize for memory and performance, mentor peers, and collaborate with leadership to define the technical roadmap. This role emphasizes in-person collaboration across our studios.

Qualifications

• 3+ years of engine programming experience using C++.
• Shipped at least 1 AAA title as an Engine Programmer.
• Strong knowledge of algorithms, data structures, memory management, and multithreading.
• A master of debugging complex, cross-system issues in large codebases.
• Console development experience with understanding of platform-specific constraints.
• Proven ability to break down tasks, estimate scope, and assess work across engineering.
• Excellent communicator who can work effectively in a distributed, international team.

Responsibilities

• Design, develop, and maintain core engine systems including entity management, resource systems, and engine infrastructure
• Play a key role in evolving our proprietary Glacier engine for current and future game projects
• Write maintainable and robust C++ code that will support multiple titles across multiple console generations
• Optimize for memory and performance across the entire codebase, with focus on scalability and platform constraints
• Develop, adopt, and maintain profiling and diagnostic tools to support studio-wide performance culture
• Collaborate with the Technical Director and Engine team to establish and maintain the technical roadmap
• Support platform expansion initiatives and port core systems to new technologies and platforms
• Mentor junior colleagues and foster knowledge-sharing across all technical domains
• Strengthen and enforce studio coding practices and standards

Skills

C++

Engine programming

Multithreading

Memory management

Debugging cross-system issues

Console development

Task estimation

Communication in distributed teams

Tools

Glacier engine

Job description

IO Interactive in Brighton is seeking an experienced Core Engine Programmer to join our Engine team and drive the Glacier engine's core systems. You will shape architecture, own critical subsystems, and contribute to a scalable platform strategy across multiple projects.

You will write robust C++ code, optimize for memory and performance, mentor peers, and collaborate with leadership to define the technical roadmap. This role emphasizes in-person collaboration across our studios.