Systems Innovation Engineering

Lead systems development, manage requirements and interfaces, oversee subcontractors, and mentor engineering teams. | 10+ years in systems engineering, leadership experience, ability to manage requirements and technical baselines, strong communication skills. | The Principal Systems Engineer serves as the technical authority for complex systems development efforts, providing end-to-end systems engineering leadership across requirements development, design, integration, verification, and delivery. This role is responsible for driving technical excellence, overseeing subcontractor performance, mentoring engineering teams, and supporting business development activities through proposal and customer engagement. Key Responsibilities Lead the development, decomposition, and management of system, subsystem, and interface requirements in alignment with customer needs and program objectives. Collaborate with the engineering team to ensure requirements are traceable, verifiable, and aligned with mission performance. Participate in subsystem architecture trades to balance performance, cost, schedule, and risk. Review and approve technical approaches to ensure designs meet requirements and integrate cleanly at the system level. Provide technical oversight and direction to subcontractors and suppliers delivering hardware, software, and system elements. Review subcontractor designs, analyses, test plans, and test results for compliance with requirements and interfaces. Review and approve subcontractor technical artifacts, including requirements, designs, test plans, and deliverables. Serve as a technical interface between subcontractors, internal engineering teams, and government stakeholders. Actively participate in technical reviews, ensuring technical rigor and risk mitigation with subcontractors and customers. Mentor and develop junior and mid-level engineers, fostering strong systems engineering practices and technical growth. Promote consistency in systems engineering processes, tools, and best practices across programs. Foster a culture of continuous learning, technical curiosity, and accountability. Support proposal and capture efforts by contributing technical approaches, requirements understanding, and engineering cost estimates. Write technical content including white papers, technical sections of proposals, status reports, and internal documentation. Deliver effective internal and external technical briefings. Engage with customers and partners to understand technical needs and communicate SIE’s engineering capabilities. Required Qualifications Bachelor’s degree in Systems Engineering, Electrical Engineering, Mechanical Engineering, Computer Engineering, or a related technical field (Master’s preferred). 10+ years of experience in systems engineering across complex, multidisciplinary systems. Demonstrated ability to lead technical teams and influence across organizational boundaries. Experience managing requirements, interfaces, and technical baselines throughout the system lifecycle. Strong written and verbal communication skills, including experience with customer and executive-level briefings. Preferred Qualifications Active or ability to obtain a security clearance (if applicable). Experience with subcontractor technical management. Familiarity with Model-Based Systems Engineering (MBSE) and modern SE tools. Experience in defense, aerospace, or other highly regulated technical environments. Clearance Requirements Some positions will require access to U.S. National Security information. Positions that require this access will be required to receive and maintain a U.S. government personnel security clearance (PCL). In order to qualify for this position, the candidate must be a US Citizen and either currently possess this National Security eligibility or be able to complete the investigation application process with a favorable determination and maintain that eligibility throughout their employment. To learn more about the security clearance process please access this link. EEOC & Know Your Rights Accelint companies are Equal Opportunity Employers. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, status as a protected veteran or any other status protected by applicable federal, state, and local law. We ensure that all employment decisions, including hiring, promotion, compensation, and other terms and conditions of employment, are based on merit, qualifications, and business needs. For more information about your rights, please review the "Know Your Rights" poster from the Equal Employment Opportunity Commission (EEOC). Know your Rights: English Spanish Pay Scales & Benefits The listed pay scale reflects the broad, minimum to maximum, pay scale for this position for the location for which it has been posted and is not a guarantee of compensation or salary. Other compensation considerations may include, but are not limited to, job responsibilities, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, or other applicable factors. Benefits include… Paid Time Off Paid Company Holidays Medical, Dental & Vision Insurance Optional HSA and FSA Base and Voluntary Life Insurance Short Term & Long-Term Disability Insurance 401k Matching Employee Assistance Program

Work on innovative engineering projects supporting aerospace and defense customers requiring security clearance and technical expertise. | Senior-level engineering experience with active U.S. government security clearance or ability to obtain one, strong problem-solving skills, and ability to work independently and collaboratively. | Our positions requires active U.S. national security clearance and the ability to obtain one. To learn more about the security clearance process please access this link. Additionally, travel may be required to customer and subcontractor sites as well as other office locations. Systems Innovation Engineering (SIE) is a wholly owned subsidiary of Accelint, developing integrated software, sensor, and systems engineering solutions at the speed of relevance to provide accelerated intelligence and operational dominance to our Aerospace and Defense (A&D) customers. We are an energetic team that prioritizes innovation. Our mission is to leverage advanced technology to enhance the affordability and readiness of defense systems, ensuring superior mission effectiveness for our clients. This job posting is for future engineering opportunities at SIE. We’re always on the lookout for talented individuals who are interested in joining our team, even if the perfect role isn’t open yet. By applying here, your resume will be reviewed and kept on file. As roles open that align with your background and interests, a member of our team will reach out directly. Roles We Commonly Hire For We’re building a pipeline of experienced professionals for the following roles at the Senior level and above: • Software Developers (Fullstack, Frontend, Backend) • Systems Engineers • DevOps Engineers • Data Engineers • Windchill Engineers • Windchill Data Migration Developers • Data Scientists • Solutions Architects • Lead Mechanical Engineers What We Look For • A passion for solving technical challenges in innovative ways • Experience with modern engineering practices and tools • Strong problem-solving and analytical skills • Ability to work independently and collaboratively • An active U.S. government security clearance at the Secret level or higher Why Join SIE • Work on high-impact projects that matter • Collaborate with a diverse and talented team • Competitive compensation and benefits package • Opportunities for growth, mentorship, and leadership • Flexible work options and a strong focus on work-life balance Clearance Information: Some positions will require access to U.S. National Security information. Positions that require this access will be required to receive and maintain a U.S. government personnel security clearance (PCL). In order to qualify for this position, the candidate must be a US Citizen and either currently possess this National Security eligibility or be able to complete the investigation application process with a favorable determination and maintain that eligibility throughout their employment. EEOC & Know Your Rights: Accelint companies are Equal Opportunity Employers. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, status as a protected veteran or any other status protected by applicable federal, state, and local law. We ensure that all employment decisions, including hiring, promotion, compensation, and other terms and conditions of employment, are based on merit, qualifications, and business needs. For more information about your rights, please review the "Know Your Rights" poster from the Equal Employment Opportunity Commission (EEOC). ADA: In compliance with the Americans with Disabilities Act (ADA), if you have a disability and would like to request an accommodation within the application and selection process, please contact careers@accelint.com. E-Verify: Accelint companies utilizes E-Verify to confirm employment eligibility to work in the United States. Verification occurs after the employee has been hired and completes the Form I-9.