2,228,427open jobs
143,630companies
253,927added this week
Browse all
Location
In office (Plano)
Seniority
Architect · 16+ years exp
Visa
H-1B filings in 12 months: 5

Confirmed on the employer's own hiring board on Nov 12, 2026. First seen by Alion on Nov 12, 2026. L3Harris Technologies scores A on the Alion truth index.

Overview
Company
Impact
Profile match
L3Harris Technologies is an American defense contractor formed in 2019 by the merger of L3 Technologies and Harris Corporation. It builds tactical radios and military communication systems, electronic warfare and intelligence, surveillance and reconnaissance equipment, space sensors and satellites, night vision devices, and uncrewed surface vessels, and owns the rocket engine maker Aerojet Rocketdyne. Its main customers are the United States Department of Defense and allied governments. The company is headquartered in Melbourne, Florida, United States.

Job Title: Scientist Systems Engineer, Systems Engineering

Job Code: 47760

Job Location: Greenville, TX

Job Schedule: 9/80 - Employees work 9 out of every 14 days - totaling 80 hours worked - and have every other Friday off

Job Description:

We are seeking an experienced Lead Systems Engineer (LSE) to serve as the senior technical authority responsible for leading systems engineering execution across platform, baseline, or program. The LSE directs all technical activities with full accountability for requirements management, technical integration, system performance, and lifecycle execution. As the operational technical leader, you will translate strategic architectural vision into executable technical plans and ensure technical coherence from concept through deployment.

Essential Functions:

  • 50% travel based on business needs.
  • Current Security+ Certification.
  • Lead Systems Engineer (LSE) operational execution across the assigned platform/baseline/program.
  • Own and manage platform-level requirements and System Engineering (SE) process standards.
  • Direct technical integration across all subsystems, capabilities, and disciplines.
  • Resolve complex technical issues and make final trade-off decisions for the platform in coordination with Chief Engineers.
  • Communicate within and outside of the organization to explain and influence changes to practices, processes and approaches, particularly chief engineers, project engineers, and program managers.
  • Provide input into new products/processes and implement operational plans that have measurable impact on business or functional results.
  • Collaborate in a multi-disciplinary, diverse, and dynamic team environment.
  • Establish and maintain technical direction, engineering standards, and design principles.
  • Lead technical planning, design reviews, integration, and technical decision-making.
  • Oversee system-level requirements management, decomposition, validation, and verification.
  • Evaluate requirements definition, flow-down and traceability.
  • Maintain risk assessment and development of mitigation strategies.
  • Develop, track and present technical metrics.
  • Manage technical risk management and successful system integration.
  • Prepare and present technical results for internal and external program meetings.
  • Generate platform system architecture documents and technical roadmaps.
  • Create risk management and mitigation plans.
  • Produce technical decision records and trade studies.
  • Develop customer technical communications and recommendations.
  • Document and support design verification tests within lab, ground and flight test environments.
  • Conduct platform-wide technical and milestone reviews.
  • Hands-on experience with testing, integrating, and verifying software and/or hardware.
  • Mentor and develop technical leaders.
  • Support training and development of new team members.
  • Responsible for managing engineering team during travel to offsite facilities for integration.
  • Responsible for a team of engineers during off-site installations.
  • Drive SE process improvement and technical excellence across the platform.
  • Generate and maintain schedule for engineering activities.
  • Manage large, complex project initiatives of substantial importance to the organization with minimal oversight or direction on and off-site.
  • Work with subcontractors and US Government customers.
  • This position includes an expectation of 10 to 15% shift, on-call, or weekend work.
  • Other duties as assigned by Supervisor.

Qualifications:

  • Active US Secret security clearance with ability to obtain and maintain a Top Secret/SCI.
  • Bachelor’s degree with 12 years of leading projects and/or task teams in the integration of systems and/or subsystems in airborne and/or Lab environments experience.
  • Graduate degree with 10 years of leading projects and/or task teams in the integration of systems and/or subsystems in airborne and/or Lab environments experience.
  • In Lieu of a degree, a minimum of 16 years of leading projects and/or task teams in the integration of systems and/or subsystems in airborne and/or Lab environments experience.

Preferred Additional Skills

  • Active Top Secret with SCI security clearance.
  • Coursework and/or experience in systems engineering, systems architecture, systems analysis and design, system performance modeling, integration and/or project management, and/or model-based systems engineering.
Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
2,228,427 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Recommended for you based on this role

Science & Research
Similar stack
Same company
Plano
Sr Sensory Scientist 2 hours ago
$76k – $120k per year · Hybrid · 6+ years exp · Bachelor's Degree · Frisco
Chips/EDA
JMP
Apply
Postdoctoral Fellow 1 hour ago
In office · Full-Time · 2+ years exp · Master's Degree · Charlestown
Apply
$98k – $148k per year · In office · Full-Time · 5+ years exp · Master's Degree · Malta
Apply
Hybrid · 2+ years exp · Bachelor's Degree · Flowery Branch
Python
MATLAB
Cybersecurity
HIPAA
Apply
Hybrid · 4+ years exp · Bachelor's Degree · Flowery Branch
Python
MATLAB
Cybersecurity
HIPAA
Apply
$133k – $247k per year · In office · Secret · 16+ years exp · Bachelor's Degree · Rochester
SpaceTech
MBSE
Defense
EVMS
Apply
In office · 12+ years exp · Bachelor's Degree · Waco
Defense
MIL-STD-882
EVMS
Apply
$153k – $284k per year · In office · TS/SCI · 16+ years exp · Bachelor's Degree · Chantilly
SpaceTech
IBM DOORS
MBSE
Defense
EVMS
Apply
In office · Top Secret · 8+ years exp · High School Diploma · Salt Lake City
Apply
In office · TS/SCI · 19+ years exp · Bachelor's Degree · Palm Bay
SpaceTech
MBSE
Apply
In office · Contractor · High School Diploma · Plano
Apply
$162k – $184k per year · Hybrid · Full-Time · 10+ years exp · Bachelor's Degree · McLean · Charlotte · Richmond · New York · Plano
Apply
≈ $34k – $86k per year (Estimated) · In office · Part-Time · High School Diploma · Plano
Apply
In office · 15+ years exp · Plano
Python
SQL
Databases
Microsoft Fabric
DevOps
Rest API
Azure
Analytics
Power BI
Apply
Network Engineer 1 day ago
In office · 3+ years exp · Plano
DevOps
VMWare
Windows Server
AWS
TCP/IP
DNS
DHCP
VPN
BGP
Apply
See all jobs
This is one of many
2,228,427 more open roles from verified company boards, updated every day.