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Software Engineer–Simulation (Associate, Mid Level, Senior)

Saint Charles, Missouri Job ID JR2025488590 Category Engineering - Software Role Type Onsite Post Date Dec. 23, 2025 Security Clearance Required
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Job Description

At Boeing, we innovate and collaborate to make the world a better place. We’re committed to fostering an environment for every teammate that’s welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us.

The Boeing Company is looking for a Software Engineer – Simulation (Associate, Mid Level or Senior) to join the Phantom Works Weapons Software team located in Saint Charles, Missouri. This position will focus on supporting the Boeing Defense, Space & Security (BDS) Software Engineering organization.

Join a mission-driven team designing and developing high-fidelity simulation models, visualizations, and virtual environments that accelerate testing, improve safety, and validate durability across the full product lifecycle. You’ll partner with stakeholders to capture simulation requirements, perform modeling, simulation, and analysis, and integrate simulation software with hardware systems to ensure realistic, repeatable test conditions. Your work will include data collection and processing, validating and refining models and code against real-world test data and benchmarks, and documenting test results to drive confident engineering decisions.

This role thrives on technical leadership and hands-on delivery: implement modern tools and frameworks, migrate and modernize legacy simulation software, and build automated test procedures and execution environments that meet real-time constraints. You’ll collaborate across cross-functional engineering teams, support project management for simulation efforts, and apply expertise in real-time architectures, APIs, and integration to produce demonstrable, production-ready simulations that enable safer, more capable systems.

Our teams are currently hiring for a broad range of experience levels including Associate, Experienced and Senior Level Software Engineers. 

Position Responsibilities

  • Designs, architects, and develops simulation models, simulation visualizations, virtual environments/platforms, and frameworks to enhance test performance, safety, and durability of software and hardware systems throughout the entire product lifecycle.
  • Partners with stakeholders to review and identify simulation requirements and dynamics of the systems being simulated.
  • Performs design, modeling, simulation, testing, and analysis to assess and optimize overall system performance and capabilities.
  • Performs data collection and processing for use in simulations.
  • Validates, verifies, and refines simulation software code, models, simulations, test procedures and test environments, executing test procedures and documenting test results and models against real-world data, test data, benchmarks, or other similar models.
  • Documents and maintains technical code, algorithms, specifications and descriptions of simulation models.
  • Partners with cross functional engineering teams to enable integration of simulation software with hardware devices and systems.
  • Implements current and emerging technologies, tools, frameworks, and methods in the software engineering simulation environment.
  • Modernizes, migrates, sustains, and updates simulation software to adapt legacy systems to new operating systems.
  • Performs simulation software project management functions.

Basic Qualifications

  • 2 years of experience in C/C++ Development
  • 2 years of experience in Real-time software development
  • 2 years of experience in Simulation and test Frameworks

Preferred Qualifications

  • Bachelor of Science degree from an accredited course of study in engineering, engineering technology (includes manufacturing engineering technology), chemistry, physics, mathematics, data science, or computer science
  • 2 years of experience in CI/CD and automation in a DevSecOps environment
  • Level 2: 2 or more years’ related work experience or an equivalent combination of education and experience 
  • Level 3: 5 or more years’ related work experience or an equivalent combination of education and experience 
  • Level 4: 9 or more years’ related work experience or an equivalent combination of education and experience 
  • Knowledge of specification format requirements, guidelines, and change control processes. Understanding of relationship between specifications/standards and aircraft/product certification systems.
  • Knowledge of various engineering disciplines such as electrical, mechanical, and systems. The ability to communicate with technical personnel from multiple skill areas and functions to evaluate technical information and issues impacting design, production, and support of products, services, or other deliverables.
  • Knowledge of how to derive and allocate requirements (e.g., system, sub-system, software) and show traceability throughout the product lifecycle.
  • Knowledge and ability to design, develop, integrate, apply, and test software models, simulations, framework environments, tools, and applications with higher order programming languages, assembly, and auto-code. Ability to perform Application Programming Interface (API) design, implementation, and testing. Knowledge of real-time software architecture and design methodologies to synthesize models and simulation frameworks that meet real-time requirements; this includes knowledge of real-time target environments, its processor and network architecture, communication protocols, and electrical interfaces.
  • Knowledge of software architecture and design methodologies. Ability to synthesize software architectures and designs that meet requirements, characteristics and constraints.
  • Knowledge of build and execution environments that include hosts, processors, operating systems, and networks. Ability to build, integrate, test, and troubleshoot software components comprising simulation models and build/execution frameworks. Knowledge of verification, validation, certification, and qualification processes.
  • Ability to design and develop software testing processes for different units, modules or components of a software application as a combined and integrated entity. It includes deep knowledge of integration-testing tools.

Drug Free Workplace

Boeing is a Drug Free Workplace where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.

Travel:

10%

CodeVue Coding Challenge:

 To be considered for this position you will be required to complete a technical assessment as part of the selection process.  Failure to complete the assessment will remove you from consideration.

Pay & Benefits: 

At Boeing, we strive to deliver a Total Rewards package that will attract, engage and retain the top talent.  Elements of the Total Rewards package include competitive base pay and variable compensation opportunities.

The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. 

The specific programs and options available to any given employee may vary depending on eligibility factors such as geographic location, date of hire, and the applicability of collective bargaining agreements.

Pay is based upon candidate experience and qualifications, as well as market and business considerations.

Summary Pay Range Associate (Level 2):  $98,600 - $133,400

Summary Pay Range Mid Level (Level 3):  $123,250 - $166,750

Summary Pay Range Senior (Level 4):  $153,000 - $207,000


Applications for this position will be accepted until Jan. 08, 2026


Export Control Requirements:

This position must meet U.S. export control compliance requirements. To meet U.S. export control compliance requirements, a “U.S. Person” as defined by 22 C.F.R. §120.62 is required. “U.S. Person” includes U.S. Citizen, U.S. National, lawful permanent resident, refugee, or asylee.

Export Control Details:

US based job, US Person required

Relocation

This position offers relocation based on candidate eligibility.

Security Clearance

This position requires the ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship. An interim and/or final U.S. Secret Clearance Post-Start is required.

Visa Sponsorship

Employer will not sponsor applicants for employment visa status.

Shift

This position is for 1st shift


Equal Opportunity Employer:

Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.

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Your Benefits

No matter where you are in life, our benefits help prepare you for the present and the future.

  • Generous company match to your 401(k).
  • Industry-leading tuition assistance program pays your institution directly.
  • Fertility, adoption, and surrogacy benefits.
  • Up to $10,000 gift match when you support your favorite nonprofit organizations.
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These programs are subject to eligibility requirements and other conditions, which may differ for employees of certain subsidiaries or business units, or union-represented employees depending on bargaining agreement terms. If this information conflicts with the program documents, the latter shall control. This material is informational only.

  • Jacob M
    We never stop growing

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