Principal / Sr. Principal Reliability Engineer

Company: Northrop Grumman
Location: Oklahoma City
Posted on: April 1, 2026

Job Description:

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history. Our Aeronautics Systems Sector is seeking a Sr. Principal or Principal Reliability Engineer in Oklahoma City, Oklahoma, for support projects associated with the design and development of communication, navigation, radar, avionics, power and/or electrical systems architecture, components, circuits, and products or aircraft maintenance. Accomplish You will become part of Northrop Grumman’s Lifecycle Sustainment and Modernization Solutions (LSMS). LSMS provides sustainment support for the US Air Force B-1 and B-2 Bombers, E-3 Sentry, Airborne Warning and Control System, and numerous other Government platforms. Our team members complete engineering, reverse engineering, and logistics solution efforts to solve complex obsolescence problems and ensure warfighter supportability. You will research, develop, design, and test electrical components, equipment, systems, and products for defense systems or commercial purposes. You will support all levels of total system products including concept, design, fabrication, test, installation, operation, maintenance, and disposal. The activities that you will help execute within these levels will be those pertaining to technical planning, system integration, ground and flight testing, verification and validation, airworthiness, cost and risk, reliability / maintainability / availability calculations, supportability and effectiveness analyses for total systems. You will help develop, coordinate, and conduct product life studies and evaluations of engineering designs throughout the program life cycle (e.g., business capture, development, production, and sustainment). Responsibilities include: Assess designs by evaluating engineering needs, system/component specifications, use cases, and prior system performance Assess system/component field performance using field data and use that data to create statistical reports, interpret historical trends, and help identify factors affecting field performance Use field data to create and maintain a comprehensive timeline of field failures, modifications, time change items, etc. to better understand field behavior and help support other teams’ analyses (e.g., spares analysis) Maintain a failure and corrective actions database (e.g., FRACAS) that tracks engineering solutions efficacy Contributes to the completion of milestones associated with specific projects and requirements Provides solutions to a variety of technical problems of increasing scope and complexity as assigned Support subcontractor evaluation, selection and coordinate activities with respect to reliability needs Prepare for, present at and participate in design reviews. Effectively engage with external Customers and internal stakeholders Generate high quality work products on-schedule and on-budget Identify continuous improvement efforts as reliability engineering tasks are performed Support program Engineering Configuration Change Board (CCB) and Corrective Action Board (CAB) Succeed The individual we seek will be self-motivated, proactive, goal-oriented to help us grow our services, become even better at what we do and will possess the following qualifications. This position can be filled at the Principal or Sr. Principal level based on the qualifications of the candidate. Basic Qualifications Principal Engineer: Must either have a Bachelor of Science degree in a STEM (Science, Technology, Engineering or Math) discipline with 5 years of relevant experience, OR a Master of Science degree in a STEM discipline and 3 years of experience, OR 1 year of experience with a PhD in a STEM discipline 2 years of industry experience related to reliability engineering in design and/or product sustainment Experience in MS EXCEL. Exposure to statistical concepts such as descriptive, probabilistic, inferential, etc. Some exposure to coding and data analysis and exploration in Python, R, Matlab, or similar software. 2 years of industry experience related to reliability engineering in design and/or product sustainment Experiences with multiple modeling tools, such as ReliaSoft/RELEX Toolset (Reliability, Maintainability, OpSim, FMECA, Fault Tree, FRACAS, RGA, and Weibull), AMSAA Models, VMETRIC, RAPTOR, etc.), used for reliability and sparing analysis. Experience in: root cause analysis, test design/execution/data analysis as applicable to accelerated life, reliability growth, and reliability modeling. Experience related to assessing and addressing R&M requirements for design development activities Experience developing R&M program plans for new systems or for sustainment of existing systems to include staff planning, scheduling, collecting historical data, establishing configuration control processes for large program data storage and R&M software tools analysis Must have the ability to obtain and maintain a DoD Secret clearance within a reasonable amount of time as determined by business needs. Must have the ability to obtain and maintain Special Access Program (SAP) clearance within a reasonable amount of time as determined by business needs Must be able to work on-site in Oklahoma City, Oklahoma. No Relocation assistance provided Basic Qualifications Sr. Principal Engineer: Must either have a Bachelor of Science degree in a STEM (Science, Technology, Engineering or Math) discipline with 8 years of relevant experience, OR a Master of Science degree in a STEM discipline and 6 years of experience, OR 4 year of experience with a PhD in a STEM discipline 5 years of industry experience related to reliability engineering in design and/or product sustainment Experience in MS EXCEL. Exposure to statistical concepts such as descriptive, probabilistic, inferential, etc. Some exposure to coding and data analysis and exploration in Python, R, Matlab, or similar software. Experiences with multiple modeling tools, such as ReliaSoft/RELEX Toolset (Reliability, Maintainability, OpSim, FMECA, Fault Tree, FRACAS, RGA, and Weibull), AMSAA Models, VMETRIC, RAPTOR, etc.), used for reliability and sparing analysis. Experience in: root cause analysis, test design/execution/data analysis as applicable to accelerated life, reliability growth, and reliability modeling. Experience related to assessing and addressing R&M requirements for design development activities Experience developing R&M program plans for new systems or for sustainment of existing systems to include staff planning, scheduling, collecting historical data, establishing configuration control processes for large program data storage and R&M software tools analysis Must have the ability to obtain and maintain a DoD Secret clearance within a reasonable amount of time as determined by business needs. Must have the ability to obtain and maintain Special Access Program (SAP) clearance within a reasonable amount of time as determined by business needs Must be able to work on-site in Oklahoma City, Oklahoma. Preferred Qualifications: Experience with multiple modeling tools, such as ReliaSoft/RELEX Toolset (Reliability, Maintainability, OpSim, FMECA, Fault Tree, FRACAS, RGA, and Weibull), AMSAA Models, VMETRIC, RAPTOR, etc.), used for reliability and sparing analysis Experience in root cause analysis, test design/execution/data analysis as applicable to accelerated life, reliability growth, and reliability modeling. Experience in the military, government, commercial aerospace industry (e.g. aviation/equipment maintenance, aircraft operations, or commercial industrial technology companies) Knowledge of Military Specifications, Contract Data Requirements Lists (CDRLs), Data Item Descriptions (DIDs) and other related technical and contractual documents Knowledge of core reliability and maintainability analysis and activities Background in performing R&M analysis of aircraft Failure Reporting, Analysis, and Corrective Action System (FRACAS) R&M predictions and allocations R&M design influence, requirements assessment and tracking, and maintenance task analysis System integration and testing, ESS, ALT, HALT, Maintainability Demonstrations, and Reliability Demonstrations Growth Planning and Testing, and Sparing analysis Thrive with Us At Northrop Grumman we are invested in the growth and well-being off all our employees. We offer flexible work arrangements, phenomenal learning opportunities, exposure to a wide variety of projects and customers, and a very friendly team environment. Our Total Rewards Program offers a comprehensive employee benefits package, including a Retirement and Savings Plan, group medical, dental and vision coverage, life and disability insurance, and flexible spending accounts. We have Employee Resource Groups (ERGs) that provide benefits for the member, our leaders and the company. Our ERGs offer opportunities to be a friend, be active, be a volunteer, be a leader, to be recognized and to be yourself. Every ERG is inclusive of all employees! If you are ready to join us in defining possible, apply now. Primary Level Salary Range: $84,700.00 - $127,100.00 Secondary Level Salary Range: $105,800.00 - $158,600.00 The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business. The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates. Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

Keywords: Northrop Grumman, Moore , Principal / Sr. Principal Reliability Engineer, Engineering , Oklahoma City, Oklahoma