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Working at Lockheed Martin

Systems Engineer Senior, SEIT Lead

King of Prussia, Pennsylvania; Littleton, Colorado

Job Responsibilities

Job ID: 682049BR Date posted: Mar. 27, 2025
Description:The coolest jobs on this planet… or any other… are with Lockheed Martin Space.

For over 60 years, the Fleet Ballistic Missile (FBM) team has supported the Navy’s mission to provide affordable and credible strategic defense. We offer unique career opportunities and challenges on a program with a rich history and exciting future. We help keep this nation and our allies secure. The FBM Program is experiencing significant growth and we need your expertise to deliver amazing new technologies to our customers while maintaining the technical requirements of the strategic deterrence.

Learn about the Trident II D5 Fleet Ballistic Missile.

Lockheed Martin (LM) is looking for an ambitious Systems Engineer to become a member of the Systems Engineering and Design Team.

As a Systems Engineer Senior, you will:

• Develop subsystem requirements and verification activities and criteria to ensure the system and subsystem requirements are being verified through the assessment of program analysis, test and demonstration activities.

• Responsible for ensuring the cable IPT SEIT milestones are coordinated and completed in a timely fashion.

• Ensure that the program’s IPT SEIT processes/procedures and other required process assets are defined (in compliance with Space policies, processes, and practices, and contract requirements).

• Support Cable IPT Lead and CPE in defining cable requirements and supporting trade studies.

• Interface with DOE and DoD customer.

YOU WILL TYPICALLY HAVE:
4+ years of professional experience with a Bachelor's degree.
• An active Secret security clearance
• Ability to work onsite in either Littleton, CO or King of Prussia, PA.
Basic Qualifications:
• Bachelor’s degree in Engineering or related technical discipline.

• Experience with tracking requirements using DOORS database tool.

• Systems engineering background with experience working within organizations, disciplines and with customers.

• Experience supporting a development program throughout the systems engineering lifecycle, including requirements flow-down, requirements derivation, requirements generation, requirements decomposition, and verification planning.

• Understanding of system architecture and CONOPS development.

• Experience with one or more of the following:
a.) System trade studies and/or System modeling
b.) Requirements and Interface Control Document (ICD) development
c.) System Integration, Test and/or Verification
d.) Test planning and execution with an understanding of all the interdependencies
e.) Design reviews

• Must have active Secret clearance with the ability to obtain and maintain a Top Secret clearance, thus US Citizenship is required.
Desired Skills:
• Full understanding of the interdependencies of the systems engineering “V”.

• Ability to work with different engineering disciplines to derive and decompose requirements.

• Experience with development and delivery of system documentation, such as requirements documents, test plans, and release description documents.

• Experience working with MBSE modeling tools (e.g. Cameo)

• Strong verbal and written communication skills to build effective relationships across organizations, disciplines and with customers.

• Experience creating work products for SRR, SFR, PDR, or CDR milestones.

• Ability to lead a team on major project assignments, with accountability for technical performance, budget and schedule.

• Experience working in technical teams across a virtual and multi-site environment.

• Ability to implement engineering plans within a project.

• Experience leading teams in systems engineering processes and activities.

• Active Top Secret Clearance
Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: Top Secret
Other Important Information You Should Know
Expression of Interest: By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.
Ability to Work Remotely: Part-time Remote Telework: The employee selected for this position will work part of their work schedule remotely and part of their work schedule at a designated Lockheed Martin facility. The specific weekly schedule will be discussed during the hiring process.
Work Schedules: Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.
Schedule for this Position: 9x80 every other Friday off
Pay Rate: The annual base salary range for this position in California and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, Washington or Washington DC is $104,500 - $184,115. For states not referenced above, the salary range for this position will reflect the candidate’s final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.
(Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.
This position is incentive plan eligible.
Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.
The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.
Join us at Lockheed Martin, where your mission is ours. Our customers tackle the hardest missions. Those that demand extraordinary amounts of courage, resilience and precision. They’re dangerous. Critical. Sometimes they even provide an opportunity to change the world and save lives. Those are the missions we care about.

As a leading technology innovation company, Lockheed Martin’s vast team works with partners around the world to bring proven performance to our customers’ toughest challenges. Lockheed Martin has employees based in many states throughout the U.S., and Internationally, with business locations in many nations and territories.
Experience Level: Experienced Professional
Business Unit: SPACE
Relocation Available: Possible
Career Area: Systems Engineering: Requirements Development
Type: Full-Time
Shift: First
Apply Now

About

At Lockheed Martin, we apply our passion for purposeful innovation to keep people safe and solve the world's most complex challenges.

Pioneering Defense Technology: From aerospace to outer space to cyber space, you can innovate mission solutions alongside the best minds in the business.

United By Culture: Excellence, integrity, and collaboration define us. We accelerate change and embrace one another’s perspectives to win for our customers.

Real Impact, Real Growth: Grow your career and skills for life. Our wide array of opportunities and technology-driven learning programs enable your development and agility.

Your Health, Your Wealth, Your Life: Competitive pay, comprehensive benefits and flexible schedules designed so you thrive — at work and beyond.

Empowered to Be Your Best: Use your strengths to make a difference in the lives of one another, our customers, our communities, and our planet.

Here, the possibilities are endless because we offer:

  • Flexible Schedules, dependent on role
  • Levels: Student, Entry, Mid, Senior, Management
  • Locations: Nationwide & OCONUS Positions

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Qualifications

See what it takes to be a successful Lockheed Martin employee.

  • Collaborative

    There is no innovation without imagination. You bring new, different and exciting ideas to the table every day. You are committed to the success of your team.

  • Curious

    The ability to explore and drive new ideas. You think innovatively to come up with creative solutions to complex challenges.

  • Goal-oriented

    From planning and organizing to decision making, goal orientation produces impactful results. You set goals and strive to make things happen quickly and efficiently.

  • Proactive

    The ability to anticipate, plan and prepare for what lies ahead. You act rather than react to potential situations.

  • Problem Solver

    You work to tackle tough problems with complex solutions.

  • Strategic

    You observe, reflect and analyze processes to make more informed decisions.

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Quote

“Before I came to Lockheed Martin, I never thought I’d get these opportunities. The benefits available and the company’s value culture make it an incredibly supportive place to work, and I’m grateful to work somewhere that wants me to succeed. I hope to have a long career here making an impact, and I know I’ll be supported in doing that every step of the way.”

Ryan J., Enterprise Operations

Benefits

  • Healthcare

    Medical, Dental and Vision coverage is available for employees who opt-in.

  • 401(k)/Retirement Plans

    Our 401(k) plan features generous matching and company contributions.

  • Professional Development

    We support our employees through mentoring, internal & external educational programs, networking, skills enhancement and career-building programs.

  • Maternity and Paternity Leave

    Our generous parental leave policies support your journey into parenthood. When you return to work, our facilities offer mother's rooms to support your transition and work/life balance.

  • Paid Time Off

    We offer PTO, paid holidays and paid time off for jury duty and military obligations.

  • Flex-time

    Depending on the position, we offer flexible work schedules.

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