Principal Engineer-20000731

Location: Palmdale
US Citizenship Required for this Position: Yes
Relocation Assistance: Yes
Clearance Type: Secret
Number of Openings : 1
Shift : 1st Shift

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems in air and space that impact peoples lives around the world today, and for generations to come. Our work preserves freedom and democracy, and advances human discovery and our understanding of the universe. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have a lot of 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, theyre making history.


Northrop Grumman Aeronautics Systems has an opening for a Reliability Engineer to join our team of qualified, diverse individuals. This position will be located in Palmdale, CA.

The applicant must have knowledge of reliability technical standards, principles, theories, concepts, and statistical techniques. The applicant must have demonstrated knowledge in phases of reliability, availability, maintainability, supportability, logistics, system integration and testing, Environment Stress Screening (ESS), Accelerated Lifetime Testing (ALT), Highly Accelerated Lifetime Testing (HALT), Maintainability Demonstrations, Reliability Demonstrations, Growth Planning and Testing, and Sparing analysis.


The applicant will develop, coordinate and conduct technical reliability studies and evaluations of engineering design concepts and design of experiments (DOE) constructs. Recommends design or test methods and statistical process control procedures for achieving required levels of product reliability. Complies and analyzes performance reports and process control statistics; investigates and analyzes relevant variables potentially affecting product and processes. Ensures that corrective measures meet acceptable reliability standards. Analyzes preliminary plans and develops reliability engineering programs to achieve company, customer and governmental agency reliability objectives. May develop mathematical models to identify units, batches or processes posing excessive failure risks. As necessary, proposes changes in design or formulation to improve system and/or process reliability. May determine units and/or batches requiring environmental testing, and specifies minimum number of samples to obtain statistically valid data.


Essential Functions:

The applicant will perform a subset of the following Reliability and Maintainability (RAM) task:


Develop, coordinate, and conduct technical reliability studies and evaluations of engineering design concepts.

Develop reliability math models and allocations, Reliability Block Diagrams, Reliability and Maintainability Program Plans.

Perform parts derating, reliability parts count/stress and process grades analysis and reliability simulations.

Assess reliability data of fielded systems for the purpose of assessing and documenting RAM and Logistics metrics and reliability (cumulative and instantaneous) growth trends.

Perform reliability (MTBF, MTBCF, MTBUR, Ao, Am) analysis, maintainability and logistics (LRU, MTBM, MTTR, MDT, LDT, TAT) analysis, sparing analysis, and simulations which support military and industry standards.

Compile and analyze performance reports and process statistics; investigate and analyze relevant variables potentially affecting reliability and maintainability.

Propose changes in design or formulation to improve system and/or reliability processes.

Develop FMECA to identify criticality levels based on failure rates and severity of the effects of failures.

Ensure that corrective measures meet acceptable reliability standards.


The applicant must have excellent interpersonal and communications skills and excellent ability to prepare and present briefings to senior program leadership.


The applicant must have basic skills with Microsoft Office products (Word, Excel, PowerPoint, Access, MS Project) and familiarity 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.



Basic Qualifications:

Bachelors Degree (STEM) with 5 years experience in engineering, or 3 years experience with a Master's Degree.


Excellent communication, interpersonal skills, and the ability to interface with all levels of employees and management


Active in-scope DoD Secret clearance granted within 5 years


Ability to obtain and maintain special program access (SAP)

Preferred Qualifications:

Masters Degree (STEM)


Experience in military, government, commercial aerospace industry (e.g. aviation/equipment maintenance, aircraft operations, or commercial industrial technology companies)


Experience in Product Support Element analysis


Knowledge of Military Specifications, Contract Data Requirements Lists (CDRLs), Data Item Descriptions (DIDs) and other related technical and contractual documents

Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action 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/AA and Pay Transparency statement, please visit U.S. Citizenship is required for most positions.

Job ID: 20000731

What's great about
Northrop Grumman

  1. Be part of a culture that thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work..
  2. Use your skills to build and deliver innovative tech solutions that protect the world and shape a better future.
  3. Enjoy benefits like flexible work schedules, education assistance and paid time off.
Secret Required
Yes, 10 % of the Time
No - Teleworking not available for this position