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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Simulation Software & Security Engineer - **Company:** United States Digital Space LLC - **Location:** Crawley, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Microsoft Windows, Apple IOS, Apple Mac Systems, Application Release Automation, Automation of Tests, Unit Testing, Software Bug Management, C++ (Programming Language), Mobile Application Development, Cloud Computing Security, Static Program Analysis, Code Generation, Profiling, Cyber Security, Custom Software, Data Validation, Data Control, Software Debugging, Linux, DevOps, Memory Management, Dynamic Program Analysis, Fuzz Testing, Mobile Application Software, Key Management, Performance Tuning, Reverse Engineering, Simulation Software, System Programming, Data Logging, Multithreading, Delivery Pipeline, Software Security, Caching, Git Flow, Information Technology, Build Tools, Unreal Engine, Multiplatform, Software Version Control - **Published:** September 10, 2026 - **Apply:** https://www.collegerecruiter.com/job/2840595664-senior-simulation-software--security-engineer ## About the Role * 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 jailbreaking and permissionless debugger attachment * Experience with reverse engineering * Experience developing secure cloud authentication and token handling * Experience with security-focused static analysis, dynamic analysis, fuzzing, and adversarial validation, Bachelor's Degree or Equivalent Required ## Description The company 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 DevOps. * 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. ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [HTTP headers that make your website go faster](https://www.wearedevelopers.com/videos/1676-http-headers-that-make-your-website-go-faster) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [#90DaysOfDevOps - The DevOps Learning Journey](https://www.wearedevelopers.com/videos/548-90daysofdevops-the-devops-learning-journey) - [Software Security 101: Secure Coding Basics](https://www.wearedevelopers.com/videos/220-software-security-101-secure-coding-basics) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Dev Digest 138 - Are you secure about this?](https://www.wearedevelopers.com/magazine/486-dev-digest-138-are-you-secure-about-this) - [Dev Digest 129 - Now that's what I call private data!](https://www.wearedevelopers.com/magazine/468-dev-digest-129-now-that-s-what-i-call-private-data)