Senior Simulation Software & Security Engineer

Boeing

GBR - Crawley, UKSenior7+ years

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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