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Sr Principal Engineer Systems

Job in Apopka, Orange County, Florida, 32703, USA
Listing for: Northrop Grumman
Full Time position
Listed on 2026-09-01
Job specializations:
  • Engineering
    Systems Engineer, Test Engineer
Job Description & How to Apply Below

Sr. Principal Systems Engineer

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.

Performs technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems. Analyses are performed at all levels of total system product to include: concept, design, fabrication, test, installation, operation, maintenance and disposal. Ensures the logical and systematic conversion of customer or product requirements into total systems solutions that acknowledge technical, schedule, and cost constraints.

Performs functional analysis, timeline analysis, detailed trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and software specifications.

Northrop Grumman Mission Systems has an immediate opportunity available for a Sr. Principal Systems Engineer. The selected candidate for this position will report to the Northrop Grumman Laser Systems facility in Apopka, FL. This position is to support the design, integration, test, and production of laser/electro-optical, network and communication systems.

Roles & Responsibilities:

  • Implement and manage system requirements.
  • Revises and manages both original and revised specification/interface definition document and expedites documents through signature approval process.
  • Provides data to risk management (identifies potential risks) and trade study processes.
  • Supports system design, data analyses, interface verification, testing, failure/anomaly resolution and mission operations.
  • Supports the testing and/or evaluation/validation of one or more components of a system or subsystem analytical model or actual system implementation.
  • Attends and prepares materials for presentation during System Requirement Review, System Functional Review, Preliminary Design Review, Critical Design Review and System Verification Review.
  • Supports trade studies, system sensitivity studies, design optimization studies, system performance assessments, system design assessments, mission analysis and timelines and concept of operations development.
  • Ability to work independently in a fast-paced environment supporting an Integrated Product Team.

Basic Qualifications for a Sr. Principal Systems Engineer:

  • BS Degree in Computer Science or related STEM degree and 8 years of related experience or Masters Degree in Computer Science or related STEM degree and 6 years of related experience, or PhD with 4 years of related experience.
  • US Citizenship is required
  • Must be able to obtain a DoD Secret Clearance. Must be able to maintain this level of clearance for continued employment.
  • 2 years experience with DOORS requirements managements tool
  • 2 years experience process and Procedure writing experience
  • Working knowledge of systems engineering principles and processes
  • Familiarity with Microsoft Office Products (Word, Excel, PowerPoint)

Preferred Qualifications:

  • Active Secret clearance
  • Familiarity with Model Based Systems Engineering (MBSE) and associated tools (eg, Cameo)
  • Understanding of Statement of Work and other contractual documents
  • Experience writing statements of work and estimating project scope
  • Experience in problem-solving skills
  • Experience in performing failure analysis and driving implementation of robust corrective action
  • Ability to scope and generate product test plans, lead tests as Test Engineer and generate comprehensive test reports for internal and…
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