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.

Hiring details: This requisition is for a locally hired position in Crawley. Benefits and pay are determined at the local level and are not part of Boeing U.S. based payroll. This position is expected to be 100% onsite. The selected candidate will be required to work onsite at one of the listed location options.

Position Responsibilities: 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.

Basic Qualifications (Required Skills/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 Preferred Qualifications (Desired Skills/Experience): 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 The Boeing benefits package goes above and beyond, focusing on your physical, emotional, financial and social well-being.

Here’s a snapshot of what we offer: Competitive salary and annual incentive plans Continuous learning - you’ll develop the approach and skills to navigate whatever comes next Success as defined by you - we’ll provide the tools and flexibility, so you can make a meaningful impact, your way Inclusive culture - you’ll be embraced for who you are and empowered to use your voice to help others find theirs Excellent Adoption and Parental leave options 23 days plus UK public holidays and a Winter Break between Christmas and New Year Pension Plan with up to 10% employer contribution Company paid BUPA Medical Plan Short Term Sickness: 100% pay for the first 26 weeks Long Term Sickness: 66.67% of annual salary from 27th week 6x annual salary life insurance Learning Together Programme to support your on-going personal and career development Access to Boeing’s Well Being Programs, tool and incentives Conflict of Interest Successful candidates for this job must satisfy the Company’s Conflict of Interest (COI) assessment process.

Language Requirements: Not Applicable Education: Bachelor's Degree or Equivalent Relocation: Relocation assistance is not a negotiable benefit for this position. Security Clearance: This position does not require a Security Clearance. Visa Sponsorship: Employer will not sponsor applicants for employment visa status.

Contingent Upon Award Program This position is not contingent upon program award Shift: Not a Shift Worker (United Kingdom)