Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Systems Engineer (Active Clearance)

$95.5k - $181.7k

RTX

Date Posted:

2026-04-17

Country:

United States of America

Location:

US-CA-EL SEGUNDO-E04 ~ 2006 E El Segundo Blvd ~ BLDG E04

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

Active and transferable U.S. government issued security clearance is required prior to start date.?

U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance?

Security Clearance Type:

DoD Clearance: Secret

Security Clearance Status:

Active and existing security clearance required on day 1

Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.

This position is for an experienced Systems Engineering professional.? Join the Mission Systems Secure Subsystems Department and help shape, define, and design communication solutions that connect militaries around the world!? As a Systems Engineer, you will design and develop military products ensuring safe and protected communication. You will interface with multi-discipline engineering teams to create total system solutions, addressing both domestic and international customer needs.

We are looking for talented individuals that love to problem solve and have a desire to grow and gain exposure to new skills. Our customers come from all different backgrounds, and so do our employees. If you're passionate about what you could accomplish here, we'd love to hear from you.

What You Will Do

  • Perform analysis's, architecture and design at all levels of the total system product including concept, design, fabrication, modeling, test, installation, operation, maintenance and disposal.

  • Perform functional analysis, trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and software specifications.

  • Provide analyses for the decomposition of customer specifications and system level requirements into sub-system and piece part requirements, and develops verification criteria and plans for the requirements

  • Perform technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total system solutions.

  • Perform daily tasks in a classified and controlled lab environment

  • Travel up to 10%

What YOU Will Learn

  • You will gain technical leadership experience, mentorship opportunities, and exposure to very influential individuals within Mission Systems that will help advance your career.

  • You will obtain invaluable experience working with our subject matter experts in addition to security and crypto certification specialists, our customer base, and cross-functional integrated product team.

  • You can take flight to becoming knowledgeable in security hardened products with exposure to the variety of business and products in an ever-evolving field. We are growing, so can you!

Qualifications You Must Have

  • Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience.

  • Active and existing Secret U.S. government issued security clearance is required prior to start date.

  • U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications We Prefer

  • Familiarity with the Scaled Agile framework

  • Exceptionally strong communication skills, experience presenting technical data to program management and executive leadership

  • Experienced with Cryptographic Hardware?architecture/design,?Network Encryption specifications and test methodologies

  • Experience with tools such as DOORS, CAMEO or similar, Software Languages such as Rust and Python.

  • Experience with Model Based Systems Engineering

  • Experience with Hardware and Software Integration, Validation & Verification Testing, and Qualification Testing.

What We Offer

Some of our competitive benefits package includes:?

  • Medical, dental, and vision insurance

  • Three weeks of vacation for newly hired employees

  • Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option

  • Tuition reimbursement program

  • Student Loan Repayment Program

  • Life insurance and disability coverage

  • Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance,?critical illness?insurance, group legal, ID theft protection

  • Birth, adoption, parental leave benefits

  • Ovia Health, fertility, and family planning

  • Adoption Assistance ????????

  • Autism Benefit

  • Employee Assistance Plan, including up to 10 free counseling sessions

  • Healthy You Incentives, wellness rewards program

  • Doctor on Demand, virtual doctor visits

  • Bright Horizons, child and elder care services

  • Teladoc Medical Experts, second opinion program

  • Eligible for relocation assistance

  • And more!?

Eligible for relocation.

Learn More & Apply Now!

Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions - whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you'll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today.

Role Type

*Please ensure the role type (defined below) is appropriate for your needs before applying to this role.

Onsite : Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.

At Collins, the paths we pave together lead to limitless possibility. And the bonds we form - with our customers and with each other -- propel us all higher, again and again.??

Apply now and be part of the team that's redefining aerospace, every day.??

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 95,500 USD - 181,700 USD. The salary range provided is a good faith estimate representative of all experience levels.

RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate's work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company's performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans' Readjustment Assistance Act.

Privacy Policy and Terms:

Click on this link ( to read the Policy and Terms

Raytheon Technologies is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.

Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Senior Systems Engineer (Active Clearance) in El Segundo, CA vacancy
  •  ...Systems Engineer Collins Aerospace is a leader in technologically advanced, intelligent solutions that help...  ...field and minimum 3 years of experience. Active and existing Secret U.S. government issued security clearance is required prior to start date. U.S. citizenship... 
    Senior
    Relocation package

    Raytheon

    El Segundo, CA
    2 days ago
  •  ...Systems Integrated Product Team Lead Collins Aerospace is a leader...  ...systems and cyber security engineering tasks related to our next-generation...  ...7 years of experience. Active and existing Secret U.S. government issued security clearance is required prior to start date... 
    Senior
    Relocation
    Relocation package

    Raytheon

    El Segundo, CA
    3 days ago
  • Overview Position: Systems Integrated Product Team (IPT) Lead - located...  .... This role leads a Systems Engineering Scrum Team, ensuring development...  ...degree with 7years of experience. Active and existing Secret U.S. government security clearance prior to start date. Experience... 
    Senior
    Relocation package
    Flexible hours

    Prattwhitney

    El Segundo, CA
    4 days ago
  •  ...Systems Engineer Collins Aerospace is a leader in technologically advanced, intelligent solutions that help...  ...with Model Based Systems Engineering Active and existing Secret U.S. government issued security clearance is required prior to start date. U.S. citizenship... 
    Suggested
    Relocation
    Relocation package

    Raytheon

    El Segundo, CA
    2 days ago
  • Prattwhitney is seeking a Senior Systems Engineer in El Segundo, California. The role involves developing system-level requirements...  ...Engineering and Agile development, along with active SECRET security clearance. This position offers a range of benefits including medical... 
    Senior

    Prattwhitney

    El Segundo, CA
    4 days ago
  •  ...industry. This position is for an experienced Systems Engineering professional who will join the Mission...  ....S. citizenship is required for eligibility. Active and existing Secret U.S. government‑issued security clearance is required prior to the start date. Travel up... 
    Relocation package

    Prattwhitney

    El Segundo, CA
    4 days ago
  • Millennium Space Systems, part of Boeing Defense, is hiring a Spacecraft Systems Engineer (Experienced) in El Segundo, California. The role involves responsibilities...  ...experience and be able to obtain a U.S. Security Clearance. This position offers an opportunity to work... 
    Senior

    Dormont Manufacturing Co

    El Segundo, CA
    4 days ago
  • $114k - $171k

     ...assistance available CLEARANCE REQUIRED FOR START:...  ...work on revolutionary systems that impact people's lives...  ...Thermal Systems Engineer/Sr. Principal Thermal...  ...early-career engineers to senior chief engineers and leadership...  .... Must possess an active Top Secret clearance... 
    Senior
    Full time
    Relocation
    Monday to Thursday
    Flexible hours
    Shift work

    Northrop Grumman

    Redondo Beach, CA
    5 days ago
  • $100k - $120k

     ...positions Skills Required ~ US Citizenship Required ~ Active TS/SCI clearance required ~10+ years of cost estimating and analysis...  ...) customers ~ Bachelor's degree required, preferably in engineering, mathematics, statistics, the sciences, economics or... 
    Senior
    For contractors
    Work at office

    Navstar

    El Segundo, CA
    2 days ago
  •  ...Senior Systems Engineer El Segundo/Los Angeles, CA - (Hybrid) Description: Apply to...  ...Provide technical support for test activities that characterize system performance...  ...equivalent experience Active Secret Clearance Experience working across space,... 
    Senior

    Bay Systems Consulting Inc

    El Segundo, CA
    4 days ago
  •  ...Directorate programs' solicitation technical documentation, System Engineering Plan (SEP), Integrated Master Plan (IMP), Integrated...  ..., system integration, and test and evaluation - Active and transferrable DoD TS clearance with SCI eligibility, and ability to maintain it -... 
    Senior

    Insight Global

    El Segundo, CA
    2 days ago
  • $170k - $190k

     ...Overview Senior OPIR Systems Engineer LOCATION: El Segundo, Ca JOB STATUS: Full-time CLEARANCE: Top Secret TRAVEL: As Needed SALARY: $170,000 - $190,000...  ...schedule. **This position requires an active TS clearance** REQUIRED QUALIFICATIONS... 
    Senior
    Full time
    For contractors
    Work experience placement
    Remote work

    ASTRION, INC.

    El Segundo, CA
    5 days ago
  • $146k - $225k

    POSITION: Senior GND System Engineer LOCATION: El Segundo, CA REQUIRED SECURITY CLEARANCE: Active TS with SCI eligibility POSITION TYPE/STANDARD WORK HOURS: Full time, 40 hours THE OPPORTUNITY: Upon award, BTAS will be filling potential openings for the Space... 
    Senior
    Full time
    For contractors
    Work at office
    Local area

    Navstar

    El Segundo, CA
    2 days ago
  • $148k - $250k

     ...Senior Systems Engineer Location: El Segundo, CA Required Security Clearance: Active TS with SCI eligibility Position Type/Standard Work Hours: Full time, 40 hours The Opportunity: Upon award, BTAS will be filling potential openings for the Space Systems Command... 
    Senior
    Full time
    For contractors
    Work at office
    Local area

    Navstar

    El Segundo, CA
    2 days ago
  •  ...IESE Solutions is seeking a  Systems Engineer  to support the U.S. Space Forces mission of delivering...  ...and, or space/ground integration activities. Using model-based system...  ...Must have an active DoD security clearance , adjudicated for SCI eligibility and... 
    Senior
    Temporary work
    Work experience placement
    Work at office
    Flexible hours

    IESE Solutions Inc

    El Segundo, CA
    4 days ago
  •  ...Solutions is seeking an  experienced Senior Ground Segment Systems Engineer  to support to the US Space Force (...  ...architecting and engineering activities such as system requirements definition...  ...• Must have an active Top Secret clearance with in-scope SSBI/T5 background investigation... 
    Senior
    Temporary work
    Work experience placement
    Flexible hours

    IESE Solutions Inc

    El Segundo, CA
    4 days ago
  • $170k - $220k

     ...Title: Senior Systems Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering...  ...closely integrated with the Government Customer. An active TS/SCI clearance is required. Key Responsibilities: • Support a... 
    Senior
    Temporary work
    For contractors
    Local area
    Relocation package
    Flexible hours

    KBR

    El Segundo, CA
    5 days ago
  • $130k - $180k

     ...relevant experience. Security Clearance Requirement: Must be able to obtain and maintain Active DoD Top Secret Clearance and...  ...complex operational and engineering challenges. We are seeking a motivated, collaborative Senior Systems Engineer to support the MILSATCOM... 
    Senior
    Full time
    Temporary work
    For contractors
    Local area
    Remote work
    Flexible hours

    G2 Ops Inc

    El Segundo, CA
    2 days ago
  • $170k - $220k

     ...Inc. (MTSI) is seeking a Sr Systems Engineer with deep expertise in classified...  ...Engineer, you will provide senior-level technical support...  ...planning, and formal disposition activities. Support and coordinate...  ...institution. Clearance Requirements Active TOP... 
    Senior
    Full time
    Contract work
    For contractors
    Work at office
    Immediate start
    Worldwide
    Flexible hours

    Modern Technology Solutions Inc

    El Segundo, CA
    2 days ago
  • $95.5k - $181.7k

     ...Senior Systems Engineer The Multi-Domain Assured Navigation & Timing Applications (MANTA) group within the Mission Critical...  ...related field and minimum 3 years of experience Active and transferable SECRET clearance is required prior to start date U.S. citizenship... 
    Senior
    Temporary work
    Work experience placement
    Flexible hours

    Raytheon

    El Segundo, CA
    2 days ago
  •  ...Systems Engineer The Mission Solutions & Payloads (MSP) team in El Segundo, CA develops advanced...  ...and software integration and test activities Conduct tests on optical and...  ...government issued DoD Secret security clearance is required prior to start date. U.S.... 
    Senior
    Relocation

    Raytheon

    El Segundo, CA
    1 day ago
  • $170k - $220k

    Senior Systems Engineer - KBR Position: Senior Systems Engineer supporting the Space Data Network Backbone (SDN‑B) Program Management...  ...is on‑site, co‑located, with a government customer. An active TS/SCI clearance is required. Key Responsibilities Support a broad range... 
    Senior
    For contractors
    Local area
    Relocation package
    Flexible hours

    KBR, Inc

    El Segundo, CA
    4 days ago
  • $228k - $279k

     ...the-box communication systems for satellites, UAVs,...  ...place for you. We are actively seeking passionate, collaborative...  ...of the Systems Engineering department by...  ...members. The Senior Manager of Systems Engineering...  .... government security clearance. $228,000... 
    Senior
    Permanent employment
    Full time
    Contract work
    Work experience placement
    Local area

    CesiumAstro

    El Segundo, CA
    1 day ago
  • $125k - $175k

     ...Title: Mid-Senior Model-Based System Engineering (MBSE) Systems Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions...  ...first "digital force." This position requires an active TS/SCI clearance. The successful candidate must also be clearable to... 
    Senior
    Full time
    Contract work
    Temporary work
    Work at office
    Local area
    Relocation package
    Flexible hours

    KBR

    El Segundo, CA
    2 days ago
  • $146k - $260k

     ...us. Millennium Space Systems, a part of Boeing Defense...  ...made it happen. As an Senior Spacecraft Systems Engineer, you will be responsible...  ...software integration and test activities to ensure mission...  ...to obtain a U.S. Security Clearance. for which the US Government... 
    Senior
    Permanent employment
    Work experience placement
    Interim role
    Currently hiring
    Relocation
    Visa sponsorship
    Work visa
    Relocation package
    Flexible hours
    Shift work
    Day shift

    The Boeing Company

    El Segundo, CA
    2 days ago
  • Prattwhitney is seeking an experienced Systems Engineer to join its Mission Systems Secure Subsystems Department in El Segundo,...  ...should have a degree in STEM, relevant experience, and an active Secret security clearance. Benefits include healthcare, generous vacation, 401(k)... 

    Prattwhitney

    El Segundo, CA
    4 days ago
  •  ...Survivability Systems Engineer/Scientist (Lead or Senior) Boeing Defense, Space, & Security (BDS) is seeking a motivated and talented...  .../Experience): ~ This position requires an active U.S. Secret Security Clearance (U.S. Citizenship Required). (A U.S. Security Clearance... 
    Senior
    Work experience placement

    Navstar

    El Segundo, CA
    2 days ago
  • $119.85k - $162.15k

     ...us. The Boeing Space & Mission Systems MILSATCOM Program is seeking a Mid-Level, Lead or Senior Ground Systems Engineer to develop our nation's next generation...  ...): ~ This position requires an active U.S. Secret Security Clearance (U.S. Citizenship Required). (A U.S... 
    Senior
    Permanent employment
    Work experience placement
    Relocation
    Visa sponsorship
    Work visa
    Relocation package
    Flexible hours
    Shift work
    Day shift

    The Boeing Company

    El Segundo, CA
    4 days ago
  • $146.2k - $197.8k

     ...Survivability Systems Engineer/Scientist (Lead or Senior) Company: The Boeing Company Boeing Defense, Space, & Security (BDS)...  .../Experience): ~ This position requires an active U.S. Secret Security Clearance (U.S. Citizenship Required). (A U.S. Security Clearance... 
    Senior
    Permanent employment
    Work experience placement
    Relocation
    Visa sponsorship
    Work visa
    Flexible hours
    Shift work
    Day shift

    Boeing

    El Segundo, CA
    5 days ago
  • $121k - $151k

     ...Title: Senior Software Systems Engineer Belong. Connect. Grow. with KBR! KBR's National Security...  ...Systems Engineering & Integration (SE&I) activities in a multidisciplinary and...  ...Ability to obtain and maintain a Secret clearance • Bachelor's degree in computer science... 
    Senior
    For contractors
    Work at office
    Local area
    Flexible hours

    KBR

    El Segundo, CA
    5 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Systems Engineer (Active Clearance). Be the first to apply!