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)