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Senior Scientist, Systems Engineer

L3Harris Technologies

Engineering Jobs

Senior Scientist, Systems Engineer

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: Senior Scientist, Systems Engineer

Job Code: 32407

Job Location: Herndon, Virginia

Job Schedule: 9/80 (Every other Friday off!)
Relocation:
Relocation assistance is available to qualified applicants

Job Description:  

The Advanced Concept Engineer (ACE) provides strategic technical leadership to draw on L3Harris' technical competencies to meet the business needs of L3Harris and its customers. The ACE is the technical interface between L3Harris and our customers’ engineering staff, supporting the Business Development staff in the creation of new business opportunities. The successful ACE will engage with customer, engineering, operations, and management personnel to define and document the customer’s CONOPS and requirements, perform trade studies, engage L3Harris Subject Matter Experts (SMEs) to architect an affordable solution carrying acceptable risk, and lead resulting proposal efforts. The ACE considers all of the needs, resources, and constraints, including the customer mission, budget limitations, technical preferences, physics boundaries, and the political climate, in a manner that creates trust in the ACE as well as L3Harris. During program execution, the ACE is the technical advocate and voice of the customer during program reviews.  This role requires experience in systems engineering, system architecture development, competitive assessment, project engineering management and development program execution. 

The Advanced Concept Engineer should be a subject matter expert in multiple technical domains with an entrepreneurial background.  This individual will work closely with business development and senior management to respond to customer needs with technical presentations, white papers and proposals; requests for proposals, information and broad agency announcements; and provide market and subject matter expert guidance to business strategy and existing development efforts.  Demonstrated communication and interpersonal skills, coupled with the ability to work cross-functionally between a large engineering enterprise and external partners is required.

Essential Functions: 

  • Interpretation of customers’ mission needs with a focus on identifying mission gaps and addressable market
  • Advocates customer critical needs to internal stakeholders
  • Builds business cases and manages discretionary resources  
  • Roadmaps organic technology, discretionary funding, external partner capabilities, and customer funded studies to build new business opportunities
  • Performs technical and management competitive assessments to clearly communicate why and how the new business opportunities provide value to L3Harris and the customer
  • Evaluates customer and operational needs to help define and coordinate high level system performance, physical, functional, and program interface requirements
  • Synthesis and life cycle ownership of mission architecture
  • Generation of the initial Concept of Operations (CONOPS) or Operational Descriptions Document (ODD)  
  • Generation of initial system architecture views; decomposing opportunity to addressable configuration items in a compressive value chain framework
  • Leads the development of appropriate solutions to customer needs  
  • Demonstrates broad and deep technical knowledge; accesses Subject Matter Experts (SMEs) as needed  
  • Determines whether requirements can be met with existing capabilities/designs or if new design requirements must be developed
  • Leads and coordinates various analyses to optimize total system of systems and/or system architecture  
  • Assess and provide direction for make/buy decisions and selection of strategic suppliers
  • Establishes the technology integration or migration strategies
  • Leads and perform trade studies required to make both tactical and strategic technical decisions for pursuit
  • Provides technical coordination between customer, industry, and internal engineering groups to articulate technical issues
  • Prepares and presents technical information that addresses specific subjects of interest
  • Analyzes and develops recommendations to resolve contractual technical issues
  • Maintains a macro view of L3Harris' existing and emerging technologies  
  • Leads and coordinates pursuit activities such as technical baseline reviews, request for input (RFI) responses, request for proposal (RFP) responses, and white papers. 

Qualifications: 

  • Bachelor’s Degree with a minimum of 15 years of prior related experience. Graduate Degree with a minimum of 13 years of prior related experience. In lieu of a degree, minimum of 19 years of prior related experience.
  • 15 years' experience in RF Engineering including ideation, analysis of alternatives, and link budgets
  • 15 years' experience in Satellite SME with expertise in multi-orbit communications over a wide range of frequencies (5G/LTE, L, S, Ka and Ku bands) and the ability to develop and implement SDR solutions for satellite communications.
  • 10 years' experience in offensive and defensive Cyber mission experience with the ability to identify core mission gaps and influence customer solution space
  • 10 years of proven technical business development skills winning DoD/Government programs or CRAD
  • Active Top Secret Security Clearance. 

Preferred Additional Skills:

  • Experience with IP networking, routing, and switching
  • Knowledge of cloud-based infrastructure and services, including storage, computing, and networking
  • Experience with securing communication links and data
  • Experience with AI tools and frameworks for developing intelligent systems and automating processes
  • Understanding of regulatory requirements for satellite communications with experience in obtaining necessary licenses and ensuring compliance
  • Demonstrated entrepreneurial success
  • Demonstrated quick reaction technical team leadership experience
  • Experience analyzing, developing, and integrating electronic systems in areas such as remote sensing, aerospace payloads, mission computing, communications, networking, robotics, and cyber / electronic warfare
  • Experience working with and for Department of Defense (DoD), Intelligence Community (IC) — both domestic and international
  • In-depth knowledge of semiconductor R&D and supply chain
  • Extensive knowledge of integrated photonics, MEMS, RF systems, and quantum sensors
  • Excellent written and verbal communication skills
  • Excels in communication, adeptly translating complex technical concepts for diverse audiences, including non-technical stakeholders and cross-functional teams
  • Experience with functional and physical architecture development
  • Experience collaborating in a team environment
  • Ability to work autonomously and with others to resolve technical issues

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

  • Herndon, VA, United States

Salary

Estimated Salary Rangemedium confidence

130,000 - 195,000 USD / yearly

Source: AI Estimation

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

Skills Required

  • RF Engineering including ideation, analysis of alternatives, and link budgetsintermediate
  • Satellite SME with expertise in multi-orbit communications over a wide range of frequencies (5G/LTE, L, S, Ka and Ku bands)intermediate
  • Develop and implement SDR solutions for satellite communicationsintermediate
  • Offensive and defensive Cyber mission experienceintermediate
  • Technical business development skills winning DoD/Government programs or CRADintermediate
  • IP networking, routing, and switchingintermediate
  • Cloud-based infrastructure and services (storage, computing, networking)intermediate
  • Securing communication links and dataintermediate
  • AI tools and frameworks for intelligent systems and automating processesintermediate
  • Regulatory requirements for satellite communicationsintermediate
  • Analyzing, developing, and integrating electronic systems (remote sensing, aerospace payloads, mission computing, communications, networking, robotics, cyber/electronic warfare)intermediate
  • Semiconductor R&D and supply chainintermediate
  • Integrated photonics, MEMS, RF systems, quantum sensorsintermediate
  • Excellent written and verbal communication skillsintermediate
  • Translating complex technical concepts for diverse audiencesintermediate
  • Functional and physical architecture developmentintermediate
  • Team collaborationintermediate
  • Autonomous problem-solvingintermediate

Required Qualifications

  • Bachelor’s Degree with a minimum of 15 years of prior related experience (experience)
  • Graduate Degree with a minimum of 13 years of prior related experience (experience)
  • In lieu of a degree, minimum of 19 years of prior related experience (experience)
  • 15 years' experience in RF Engineering (experience)
  • 15 years' experience in Satellite SME (experience)
  • 10 years' experience in offensive and defensive Cyber mission (experience)
  • 10 years of proven technical business development skills (experience)
  • Active Top Secret Security Clearance (experience)

Responsibilities

  • Interpretation of customers’ mission needs and identifying mission gaps
  • Advocates customer critical needs to internal stakeholders
  • Builds business cases and manages discretionary resources
  • Roadmaps organic technology, discretionary funding, external partner capabilities, and customer funded studies
  • Performs technical and management competitive assessments
  • Evaluates customer and operational needs to define system performance, physical, functional, and program interface requirements
  • Synthesis and life cycle ownership of mission architecture
  • Generation of initial Concept of Operations (CONOPS) or Operational Descriptions Document (ODD)
  • Generation of initial system architecture views
  • Leads the development of appropriate solutions to customer needs
  • Demonstrates broad and deep technical knowledge; accesses SMEs
  • Determines requirements met with existing capabilities or new designs
  • Leads and coordinates analyses to optimize system architecture
  • Assess and provide direction for make/buy decisions and supplier selection
  • Establishes technology integration or migration strategies
  • Leads and performs trade studies
  • Provides technical coordination between customer, industry, and internal groups
  • Prepares and presents technical information
  • Analyzes and develops recommendations to resolve contractual technical issues
  • Maintains macro view of L3Harris' technologies
  • Leads pursuit activities (technical baseline reviews, RFI/RFP responses, white papers)

Benefits

  • general: 9/80 schedule (Every other Friday off)
  • general: Relocation assistance available

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L3Harris Technologies logo

Senior Scientist, Systems Engineer

L3Harris Technologies

Engineering Jobs

Senior Scientist, Systems Engineer

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: Senior Scientist, Systems Engineer

Job Code: 32407

Job Location: Herndon, Virginia

Job Schedule: 9/80 (Every other Friday off!)
Relocation:
Relocation assistance is available to qualified applicants

Job Description:  

The Advanced Concept Engineer (ACE) provides strategic technical leadership to draw on L3Harris' technical competencies to meet the business needs of L3Harris and its customers. The ACE is the technical interface between L3Harris and our customers’ engineering staff, supporting the Business Development staff in the creation of new business opportunities. The successful ACE will engage with customer, engineering, operations, and management personnel to define and document the customer’s CONOPS and requirements, perform trade studies, engage L3Harris Subject Matter Experts (SMEs) to architect an affordable solution carrying acceptable risk, and lead resulting proposal efforts. The ACE considers all of the needs, resources, and constraints, including the customer mission, budget limitations, technical preferences, physics boundaries, and the political climate, in a manner that creates trust in the ACE as well as L3Harris. During program execution, the ACE is the technical advocate and voice of the customer during program reviews.  This role requires experience in systems engineering, system architecture development, competitive assessment, project engineering management and development program execution. 

The Advanced Concept Engineer should be a subject matter expert in multiple technical domains with an entrepreneurial background.  This individual will work closely with business development and senior management to respond to customer needs with technical presentations, white papers and proposals; requests for proposals, information and broad agency announcements; and provide market and subject matter expert guidance to business strategy and existing development efforts.  Demonstrated communication and interpersonal skills, coupled with the ability to work cross-functionally between a large engineering enterprise and external partners is required.

Essential Functions: 

  • Interpretation of customers’ mission needs with a focus on identifying mission gaps and addressable market
  • Advocates customer critical needs to internal stakeholders
  • Builds business cases and manages discretionary resources  
  • Roadmaps organic technology, discretionary funding, external partner capabilities, and customer funded studies to build new business opportunities
  • Performs technical and management competitive assessments to clearly communicate why and how the new business opportunities provide value to L3Harris and the customer
  • Evaluates customer and operational needs to help define and coordinate high level system performance, physical, functional, and program interface requirements
  • Synthesis and life cycle ownership of mission architecture
  • Generation of the initial Concept of Operations (CONOPS) or Operational Descriptions Document (ODD)  
  • Generation of initial system architecture views; decomposing opportunity to addressable configuration items in a compressive value chain framework
  • Leads the development of appropriate solutions to customer needs  
  • Demonstrates broad and deep technical knowledge; accesses Subject Matter Experts (SMEs) as needed  
  • Determines whether requirements can be met with existing capabilities/designs or if new design requirements must be developed
  • Leads and coordinates various analyses to optimize total system of systems and/or system architecture  
  • Assess and provide direction for make/buy decisions and selection of strategic suppliers
  • Establishes the technology integration or migration strategies
  • Leads and perform trade studies required to make both tactical and strategic technical decisions for pursuit
  • Provides technical coordination between customer, industry, and internal engineering groups to articulate technical issues
  • Prepares and presents technical information that addresses specific subjects of interest
  • Analyzes and develops recommendations to resolve contractual technical issues
  • Maintains a macro view of L3Harris' existing and emerging technologies  
  • Leads and coordinates pursuit activities such as technical baseline reviews, request for input (RFI) responses, request for proposal (RFP) responses, and white papers. 

Qualifications: 

  • Bachelor’s Degree with a minimum of 15 years of prior related experience. Graduate Degree with a minimum of 13 years of prior related experience. In lieu of a degree, minimum of 19 years of prior related experience.
  • 15 years' experience in RF Engineering including ideation, analysis of alternatives, and link budgets
  • 15 years' experience in Satellite SME with expertise in multi-orbit communications over a wide range of frequencies (5G/LTE, L, S, Ka and Ku bands) and the ability to develop and implement SDR solutions for satellite communications.
  • 10 years' experience in offensive and defensive Cyber mission experience with the ability to identify core mission gaps and influence customer solution space
  • 10 years of proven technical business development skills winning DoD/Government programs or CRAD
  • Active Top Secret Security Clearance. 

Preferred Additional Skills:

  • Experience with IP networking, routing, and switching
  • Knowledge of cloud-based infrastructure and services, including storage, computing, and networking
  • Experience with securing communication links and data
  • Experience with AI tools and frameworks for developing intelligent systems and automating processes
  • Understanding of regulatory requirements for satellite communications with experience in obtaining necessary licenses and ensuring compliance
  • Demonstrated entrepreneurial success
  • Demonstrated quick reaction technical team leadership experience
  • Experience analyzing, developing, and integrating electronic systems in areas such as remote sensing, aerospace payloads, mission computing, communications, networking, robotics, and cyber / electronic warfare
  • Experience working with and for Department of Defense (DoD), Intelligence Community (IC) — both domestic and international
  • In-depth knowledge of semiconductor R&D and supply chain
  • Extensive knowledge of integrated photonics, MEMS, RF systems, and quantum sensors
  • Excellent written and verbal communication skills
  • Excels in communication, adeptly translating complex technical concepts for diverse audiences, including non-technical stakeholders and cross-functional teams
  • Experience with functional and physical architecture development
  • Experience collaborating in a team environment
  • Ability to work autonomously and with others to resolve technical issues

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

  • Herndon, VA, United States

Salary

Estimated Salary Rangemedium confidence

130,000 - 195,000 USD / yearly

Source: AI Estimation

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

Skills Required

  • RF Engineering including ideation, analysis of alternatives, and link budgetsintermediate
  • Satellite SME with expertise in multi-orbit communications over a wide range of frequencies (5G/LTE, L, S, Ka and Ku bands)intermediate
  • Develop and implement SDR solutions for satellite communicationsintermediate
  • Offensive and defensive Cyber mission experienceintermediate
  • Technical business development skills winning DoD/Government programs or CRADintermediate
  • IP networking, routing, and switchingintermediate
  • Cloud-based infrastructure and services (storage, computing, networking)intermediate
  • Securing communication links and dataintermediate
  • AI tools and frameworks for intelligent systems and automating processesintermediate
  • Regulatory requirements for satellite communicationsintermediate
  • Analyzing, developing, and integrating electronic systems (remote sensing, aerospace payloads, mission computing, communications, networking, robotics, cyber/electronic warfare)intermediate
  • Semiconductor R&D and supply chainintermediate
  • Integrated photonics, MEMS, RF systems, quantum sensorsintermediate
  • Excellent written and verbal communication skillsintermediate
  • Translating complex technical concepts for diverse audiencesintermediate
  • Functional and physical architecture developmentintermediate
  • Team collaborationintermediate
  • Autonomous problem-solvingintermediate

Required Qualifications

  • Bachelor’s Degree with a minimum of 15 years of prior related experience (experience)
  • Graduate Degree with a minimum of 13 years of prior related experience (experience)
  • In lieu of a degree, minimum of 19 years of prior related experience (experience)
  • 15 years' experience in RF Engineering (experience)
  • 15 years' experience in Satellite SME (experience)
  • 10 years' experience in offensive and defensive Cyber mission (experience)
  • 10 years of proven technical business development skills (experience)
  • Active Top Secret Security Clearance (experience)

Responsibilities

  • Interpretation of customers’ mission needs and identifying mission gaps
  • Advocates customer critical needs to internal stakeholders
  • Builds business cases and manages discretionary resources
  • Roadmaps organic technology, discretionary funding, external partner capabilities, and customer funded studies
  • Performs technical and management competitive assessments
  • Evaluates customer and operational needs to define system performance, physical, functional, and program interface requirements
  • Synthesis and life cycle ownership of mission architecture
  • Generation of initial Concept of Operations (CONOPS) or Operational Descriptions Document (ODD)
  • Generation of initial system architecture views
  • Leads the development of appropriate solutions to customer needs
  • Demonstrates broad and deep technical knowledge; accesses SMEs
  • Determines requirements met with existing capabilities or new designs
  • Leads and coordinates analyses to optimize system architecture
  • Assess and provide direction for make/buy decisions and supplier selection
  • Establishes technology integration or migration strategies
  • Leads and performs trade studies
  • Provides technical coordination between customer, industry, and internal groups
  • Prepares and presents technical information
  • Analyzes and develops recommendations to resolve contractual technical issues
  • Maintains macro view of L3Harris' technologies
  • Leads pursuit activities (technical baseline reviews, RFI/RFP responses, white papers)

Benefits

  • general: 9/80 schedule (Every other Friday off)
  • general: Relocation assistance available

Target Your Resume for "Senior Scientist, Systems Engineer" , L3Harris Technologies

Get personalized recommendations to optimize your resume specifically for Senior Scientist, Systems Engineer. Takes only 15 seconds!

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

Check Your ATS Score for "Senior Scientist, Systems Engineer" , 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 Senior Scientist, Systems Engineer @ L3Harris Technologies.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.