Reliability & Maintainability Engineer

General information Requisition # R67786 Locations USA-MD-Lexington Park Posting Date 05/14/2026 Security Clearance Required Secret Remote Type Hybrid Time Type Full time Description & Requirements Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we've been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH! MANTECH seeks a motivated, career and customer-oriented Reliability Engineer to join our team in Lexington Park, MD . This is a hybrid position requiring 3 days remote and 2 days onsite. Responsibilities include but not limited to: Participate in design reviews and document technical assumptions to maintain analytical progress despite design ambiguities Perform functional decomposition to map system requirements to specific hardware and software elements Execute Physics of Failure (PoF) analysis and component-level reliability predictions utilizing

MIL-HDBK-217F

(or similar part-stress methodologies) to assess hardware durability and Mean Time Between Failure (MTBF) Conduct comprehensive reliability analyses including FMECA per MIL-STD-1629A, Fault Tree Analysis (FTA), and Reliability Block Diagrams (RBD) to identify failure modes and develop design mitigations Conduct maintainability analyses such as Maintenance Task Analysis (MTA), Level of Repair Analysis (LORA), and Reliability Centered Maintenance (RCM) to develop efficient preventative schedules and most cost-effective maintenance posture Interface with logistics stakeholders to ensure R&M analytical outputs are formatted and optimized for seamless integration into the Logistics Product Data (LPD) environment per

GEIA-STD-0007

Develop and maintain R&M artifacts within a Model-Based Systems Engineering (MBSE) environment using SysML, ensuring all Product Support Analysis (PSA) is centralized according to the established

Model Governance Plan Minimum Qualifications:

Bachelor of Science in Engineering (Mechanical, Electrical, Aerospace, Systems, or a related technical discipline) 2+ years of experience in Reliability and Maintainability (R&M) Engineering, specifically within defense, aerospace, or complex systems integration Hands-on analytical and problem-solving skills, with the ability to perform detailed functional decomposition and map system-level requirements to hardware/software elements

Preferred Qualifications:

Direct experience with SysML and Model-Based Systems Engineering (MBSE) using tools like Cameo, MagicDraw, or Sparx Systems Enterprise Architect Deep understanding of core R&M standards, including

MIL-STD-1629A

(FMECA), MIL-HDBK-217F (Reliability Prediction) Advanced knowledge of Technical Data Package (TDP) validation, with the ability to interpret assembly drawings, parts lists, and engineering notes per ASME Y14.100 and

ASME Y14.24

Familiarity with configuration management and identification standards, specifically regarding Reference Designators per ASME Y14.44 and Configuration Management principles per

ANSI/EIA-649C

Experience identifying drawing discrepancies or design ambiguities and driving design change through formal engineering channels Experience in Logistics Product Data (LPD) integration, with a working knowledge of GEIA-STD-0007 and the interface between R&M artifacts and sustainment databases

Security Clearance Requirements:

Must be a US Citizen and possess a current or active

Secret Security Clearance Physical Requirements:

Must be able to remain in a stationary position 50% of the time. Needs to occasionally move about inside the office or hangar environments to access aircraft, equipment, and technical files. Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations. The projected compensation range for this position is $98,000.00-$163,100.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections. MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.