Senior Simulation Software & Security Engineer

Senior Simulation Software & Security Engineer

Company:
Boeing United Kingdom Limited

Boeing Global Services SW Engineering provides aerospace industry leadership in custom software development, engineering and technical services, and a range of other services to support training centres. Join the Commercial Simulation Binary team as a Senior Simulation Software & Security Engineer part of the SW Engineering team supporting Training Solutions. In this role, you will also help define, implement, and harden the security architecture for a complex iOS application built with Unreal Engine and extensive proprietary native C++ libraries.

• Own, extend, and maintain a large native C++ codebase: design, implement, review, and ship high‑quality, cross‑platform code for Windows, Linux, and iOS.
• Deliver across the full development lifecycle: feature development, bug fixes, refactors, performance tuning, and ongoing maintenance.
• Build, improve, and troubleshoot automated build systems and CI/CD pipelines to increase reliability, reduce build times, and ensure reproducible cross‑platform builds.
• Develop and maintain cross‑platform tooling for code generation, packaging, signing, deployment, and release automation in partnership with Dev Ops.
• Design and implement security architecture and runtime protections for a complex iOS application with native C++ components, including integrity checks, jailbreak/anti‑debug detection, and tamper response.
• Protect proprietary C++ libraries and sensitive data from reverse engineering and unauthorized extraction using hardening, obfuscation, and other protection techniques.
• Define secure interfaces between Unreal Engine and native libraries, apply least‑privilege and robust input validation, and implement secure handling of downloaded/runtime‑accessed content.
• Evaluate and select security‑related libraries, frameworks, and third‑party protection tools; partner with teams to harden build, signing, and release pipelines and ensure secure cloud authentication/token handling.
• Implement and manage security logging, telemetry, and data controls for adversarial detection, and perform security validation activities including static/dynamic analysis, fuzzing, and reverse‑engineering assessments.
• Collaborate cross‑functionally with product, QA, and engineering teams, mentor junior engineers, and advocate engineering best practices to balance security, performance, maintainability, and user experience.

• Bachelor of Science degree or higher from an accredited course of study in engineering, engineering technology (includes manufacturing engineering technology), chemistry, physics, mathematics, data science, or computer science.
• Very strong proficiency in modern C/C++ and low‑level programming skills, ability to write clear, maintainable, and efficient code.
• Experience developing iOS application security architecture.
• Experience with secure cryptography usage and key management.
• Experience with secure storage on iOS.

• 7+ years of applicable experience; iOS/macOS development experience.
• Knowledge of packaging and deployment for mobile platforms (IPA creation, code signing).
• Experience with unit testing frameworks and test automation.
• Knowledge of native application security for desktop and mobile applications.
• Knowledge of build caching and distributed build systems.
• Background in performance optimization, memory management, and multithreaded programming.
• Proven experience working directly in and modifying a large, existing code base.
• Proven experience handling multiple tool chains for cross‑platform development.
• Hands‑on experience with automated build and CI systems.
• Strong debugging skills with experience using debuggers and profiling tools.
• Familiarity with source control workflows and branching strategies.
• Excellent communication skills and ability to work effectively on a cross‑functional team.
• Experience with software cracking for security improvement, including runtime integrity and memory control strategies.
• Experience with jail breaking and permissionless debugger attachment.
• Experience with reverse engineering.
• Experie…