Lead Mission Systems Integration Engineer

Company: Boeing
Location: Saint Louis
Posted on: February 2, 2026

Job Description:

Job Description 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. Boeing Defense, Space & Security (BDS) is seeking Mission Systems Integration Engineers, in St. Louis, MO, supporting a Phantom Works Fixed Wing Proprietary Program. You will be joining a fast-paced Phantom Works program where you will be responsible for developing and integrating complex, highly integrated, Communications Systems, Navigation, and Core Systems. Your work will define how the design of Mission Systems integrated sensors, communication, and weapons meet the operational needs of our warfighter. In this role, you will be joining a cross-functional team integrating advanced Mission Systems capabilities as part of a very exciting and critically important development effort. You will have the opportunity to operate in an agile development environment, mature our products through the development lifecycle, work on next generation open-architecture model-based designs, and collaborate across multiple disciplines. The day-to-day activities of this position will be a combination of traditional design engineering, collaborating with cross-functional peers, and presenting technical challenges and solutions to leadership. Frequent interaction with program leadership, customers, and industry partners during critical design phases will be key elements of this position. This position will provide the candidate an opportunity to develop their engineering skills with potential growth into a leadership role. Position Responsibilities (from HM or can be pulled from SJC): - System of systems capability design and integration - Capability road mapping - Lead Integrator for capabilities using complex systems - Lead development of requirements and verification for capabilities. - Work with customers to develop and document requirements for system design - Lead capability integration team (software, hardware, test) to release capabilities to the customer - Analyze and translate customer requirements into system, hardware and software designs - Define logical and software interfaces to ensure compatibility with the platform architecture and ensure proper interoperability with other subsystems - Research specific technology advances for potential application to company business needs - Utilize Model Based Systems Engineering (MBSE) for hardware, software, and performance model development. Utilizes MBSE for requirements development, interfaces definition, and traceability - Hardware and software development, integration, test, and validation/verification - Tests and validates System functionality and performance to ensure designs meet operational and functional requirements - Prototype hardware and software evaluation, lab integration, analysis, and test Basic Qualifications (Required Skills and Experience): - Bachelor of Science degree in Engineering (with a focus in Electrical, Mechanical or Aeronautical), Computer Science, Data Science, Mathematics, Physics, Chemistry or non-US equivalent qualifications directly related to the work statement - 9 years of work related engineering experience with a Bachelor’s or equivalent work experience and education - Sufficient knowledge and experience of other related engineering disciplines to allow their integration within a design activity - Experience with MBSE modeling tools - Experience working in an Agile environment - Strong verbal and written communication skills - Travel may be required up to 10% of the time as needed Preferred Qualifications (Desired Skills and Experience): - Experience designing functionality and requirements for navigation, communication, or processing subsystems - Active Secret Security Clearance This position is expected to be 100% onsite. The selected candidate will be required to work onsite at one of the listed location options. Shift: This position is for 1st Shift Drug Free Workplace: 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. 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. The Boeing 401(k) helps you save for your future, with contributions from Boeing that can help you grow your retirement savings. Our best-in-class retirement benefit features: - Best in class 401(k) plan: we'll match your contributions dollar for dollar, up to 10% of eligible pay with Immediate 100% vesting - Student Loan Match: The Boeing 401(k) Student Loan Match allows eligible enrolled U.S. employees to have their qualified student loan debt payments counted, along with any match-eligible contributions they make, for purposes of determining the Company Match to employees' Boeing 401(k) accounts. Pay is based upon candidate experience and qualifications, as well as market and business considerations. Summary pay range: 136,850-185,150 Applications for this position will be accepted until Feb. 02, 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 Education Bachelor's Degree or Equivalent 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. 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.

Keywords: Boeing, Belleville , Lead Mission Systems Integration Engineer, Engineering , Saint Louis, Illinois