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Sr. Specialist, Systems Engineering

L3Harris Technologies

Engineering Jobs

Sr. Specialist, Systems Engineering

full-timePosted: Jan 15, 2026

Job Description

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title: Sr. Specialist, Systems Engineering

Job Number: 31196

Job Location: Greenville, Tx

Schedule: 9/80 or 5/8

Clearance: Must Have a Top Secret/SCI to be Considered

Job Description:

L3Harris is seeking a Systems Engineering Senior Specialist – Mission Systems to join our Greenville, TX team.  This position is responsible for Requirements, Development Support, and Integration of Operator Workstation capabilities multiple platforms and programs.  Responsible for issue investigation and resolution.  Responsible for submitting Bid and proposals.  Responsible for documenting status and issues in Jira/Confluence.

Essential Functions:

  • Considerable Systems or Software Engineering experience as a Subject Matter Expert working with Operator Interfaces.
  • Comprehensive Knowledge to write capability/product requirement specifications.
  • Able to work with customer, system engineers and system architects to develop requirements.
  • Ability to test and troubleshoot Operator Interfaces on various platforms and programs.
  • Ability to communicate effectively with software developers to explain requirements and use cases when needed.
  • Strong written and verbal communication abilities a must.

Qualifications: 

  • Bachelor’s Degree and minimum 6 years of prior relevant experience or Graduate Degree and a minimum 4 years of prior related experience.  In lieu of a degree, minimum 10 years of prior related experience
  • Ability to communicate within and outside the organization which includes customers or vendors
  • Works with minmal supervision/oversight. Experience working successfully independently and in a team environment through an entire build cycle
  • Understanding of systems engineering life cycle
  • Active DOD TS/SCI Clearance is required to be considered
  • Abilty to obtain CompTIA Security+ within 12 months

Preferred Additional Skills:

  • Experience with IBM DOORS Requirements Management Tool
  • Experience with JIRA/Confluence and the Agile process
  • Hands-on experience with RC-135 Operator Interfaces
  • Security+ Certification

#LI-EN2

L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.

Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.

By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.

L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.

Locations

  • Greenville, TX, United States

Salary

Estimated Salary Rangemedium confidence

95,000 - 155,000 USD / yearly

Source: AI Estimation

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Considerable Systems or Software Engineering experience as a Subject Matter Expert working with Operator Interfacesintermediate
  • Comprehensive Knowledge to write capability/product requirement specificationsintermediate
  • Ability to test and troubleshoot Operator Interfaces on various platforms and programsintermediate
  • Ability to communicate effectively with software developers to explain requirements and use casesintermediate
  • Strong written and verbal communication abilitiesintermediate
  • Experience with IBM DOORS Requirements Management Tool (Preferred)intermediate
  • Experience with JIRA/Confluence and the Agile process (Preferred)intermediate
  • Hands-on experience with RC-135 Operator Interfaces (Preferred)intermediate
  • Security+ Certification (Preferred)intermediate

Required Qualifications

  • Bachelor’s Degree and minimum 6 years of prior relevant experience or Graduate Degree and a minimum 4 years of prior related experience. In lieu of a degree, minimum 10 years of prior related experience (experience)
  • Ability to communicate within and outside the organization which includes customers or vendors (experience)
  • Works with minimal supervision/oversight. Experience working successfully independently and in a team environment through an entire build cycle (experience)
  • Understanding of systems engineering life cycle (experience)
  • Active DOD TS/SCI Clearance is required to be considered (experience)
  • Ability to obtain CompTIA Security+ within 12 months (experience)

Responsibilities

  • Requirements, Development Support, and Integration of Operator Workstation capabilities multiple platforms and programs
  • Issue investigation and resolution
  • Submitting Bid and proposals
  • Documenting status and issues in Jira/Confluence
  • Able to work with customer, system engineers and system architects to develop requirements

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L3Harris Technologies logo

Sr. Specialist, Systems Engineering

L3Harris Technologies

Engineering Jobs

Sr. Specialist, Systems Engineering

full-timePosted: Jan 15, 2026

Job Description

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title: Sr. Specialist, Systems Engineering

Job Number: 31196

Job Location: Greenville, Tx

Schedule: 9/80 or 5/8

Clearance: Must Have a Top Secret/SCI to be Considered

Job Description:

L3Harris is seeking a Systems Engineering Senior Specialist – Mission Systems to join our Greenville, TX team.  This position is responsible for Requirements, Development Support, and Integration of Operator Workstation capabilities multiple platforms and programs.  Responsible for issue investigation and resolution.  Responsible for submitting Bid and proposals.  Responsible for documenting status and issues in Jira/Confluence.

Essential Functions:

  • Considerable Systems or Software Engineering experience as a Subject Matter Expert working with Operator Interfaces.
  • Comprehensive Knowledge to write capability/product requirement specifications.
  • Able to work with customer, system engineers and system architects to develop requirements.
  • Ability to test and troubleshoot Operator Interfaces on various platforms and programs.
  • Ability to communicate effectively with software developers to explain requirements and use cases when needed.
  • Strong written and verbal communication abilities a must.

Qualifications: 

  • Bachelor’s Degree and minimum 6 years of prior relevant experience or Graduate Degree and a minimum 4 years of prior related experience.  In lieu of a degree, minimum 10 years of prior related experience
  • Ability to communicate within and outside the organization which includes customers or vendors
  • Works with minmal supervision/oversight. Experience working successfully independently and in a team environment through an entire build cycle
  • Understanding of systems engineering life cycle
  • Active DOD TS/SCI Clearance is required to be considered
  • Abilty to obtain CompTIA Security+ within 12 months

Preferred Additional Skills:

  • Experience with IBM DOORS Requirements Management Tool
  • Experience with JIRA/Confluence and the Agile process
  • Hands-on experience with RC-135 Operator Interfaces
  • Security+ Certification

#LI-EN2

L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.

Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.

By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.

L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.

Locations

  • Greenville, TX, United States

Salary

Estimated Salary Rangemedium confidence

95,000 - 155,000 USD / yearly

Source: AI Estimation

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Considerable Systems or Software Engineering experience as a Subject Matter Expert working with Operator Interfacesintermediate
  • Comprehensive Knowledge to write capability/product requirement specificationsintermediate
  • Ability to test and troubleshoot Operator Interfaces on various platforms and programsintermediate
  • Ability to communicate effectively with software developers to explain requirements and use casesintermediate
  • Strong written and verbal communication abilitiesintermediate
  • Experience with IBM DOORS Requirements Management Tool (Preferred)intermediate
  • Experience with JIRA/Confluence and the Agile process (Preferred)intermediate
  • Hands-on experience with RC-135 Operator Interfaces (Preferred)intermediate
  • Security+ Certification (Preferred)intermediate

Required Qualifications

  • Bachelor’s Degree and minimum 6 years of prior relevant experience or Graduate Degree and a minimum 4 years of prior related experience. In lieu of a degree, minimum 10 years of prior related experience (experience)
  • Ability to communicate within and outside the organization which includes customers or vendors (experience)
  • Works with minimal supervision/oversight. Experience working successfully independently and in a team environment through an entire build cycle (experience)
  • Understanding of systems engineering life cycle (experience)
  • Active DOD TS/SCI Clearance is required to be considered (experience)
  • Ability to obtain CompTIA Security+ within 12 months (experience)

Responsibilities

  • Requirements, Development Support, and Integration of Operator Workstation capabilities multiple platforms and programs
  • Issue investigation and resolution
  • Submitting Bid and proposals
  • Documenting status and issues in Jira/Confluence
  • Able to work with customer, system engineers and system architects to develop requirements

Target Your Resume for "Sr. Specialist, Systems Engineering" , L3Harris Technologies

Get personalized recommendations to optimize your resume specifically for Sr. Specialist, Systems Engineering. Takes only 15 seconds!

AI-powered keyword optimization
Skills matching & gap analysis
Experience alignment suggestions

Check Your ATS Score for "Sr. Specialist, Systems Engineering" , L3Harris Technologies

Find out how well your resume matches this job's requirements. Get comprehensive analysis including ATS compatibility, keyword matching, skill gaps, and personalized recommendations.

ATS compatibility check
Keyword optimization analysis
Skill matching & gap identification
Format & readability score

Answer 10 quick questions to check your fit for Sr. Specialist, Systems Engineering @ L3Harris Technologies.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.