209 Best legacy Jobs in St Louis, Missouri (January 2026)

Software Engineer-Simulation (Experienced, Senior)

1 day ago

St. Louis

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 currently seeking Software Engineers-Simulation to support our Simulation Framew orks, Services and Tools deployments team l o cated in Berkeley, Missouri. This position will focus on supporting the Software Fabric / Boeing Emulation, Simulation, Test and Analysis Framework (BESTAF) business organization This position will be a software development role on the Simulation Frameworks, Services, and Tools (SFST) deployment team that provides simulation software across the Boeing enterprise. The suite of tools support software verification, hardware verification, flight trainers, and warfare scenario simulation. The successful candidate will coordinate with commercial, defense, and other customers for requirements. The candidate will participate in small developmental teams - and sometimes independently - to implement those requirements. Agile methodologies such as sprint planning, scrums, retrospectives, and demonstrations are expected. The candidate should enjoy working collaboratively with others, have a commitment to customer satisfaction and process improvement, and be successful working in a multi-program environment. They will support the development of solutions to a wide range of complex problems that require ingenuity and innovation. They should be adaptable to new development environments and eager to work with and learn new technologies . Our teams are currently hiring for a broad range of experience levels including 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 (Required Skills/ Experience): • 4+ years of experience in software programming with C, C++, C#, .NET coding, debug, and development, • 2 + years of experience in software programming with Python Preferred Qualifications (Desired Skills/Experience): • B achelor 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., • Level 3: 3 or more years' related work experience or an equivalent combination of education and experience, • Level 4: 5 or more years' related work experience or an equivalent combination of education and experience, • 4 or more years' related work experience or an equivalent combination of education and experience ( e.g. PhD+4 years' related work experience, Master+7 years' related work experience, • 2 or more years' experience in software programming with Rust, • Active Security Clearance, • Experience with embedded software and hardware interfacing-software, • Experience working across software-interface boundaries, including hardware, firmware, and software (Including technical coordination with interfacing teams), • Experience handling multiple projects simultaneously, • Decision making abilities to complete efforts with minimal requirements definition, • Experience in software development in Visual Studio, • Experience with avionics and Ethernet communication protocols, • Experience with Agile Methodology Boeing is a Drug Free Workplace (DFW) 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 for Associate Level (Level 2): $ 98,600 - $133,400 Summary pay range for Experienced Level (Level 3): $ 123,250 - $166,750 Summary pay range for Senior Level (Level 4): $ 153,000 - $207,000 Applications for this position will be accepted until Jan. 12, 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. A final U.S. Secret Clearance Pre-Start is required. This position requires ability to obtain program access, for which the U.S. Government requires U.S. Citizenship only. 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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