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Salary
≈ $86k – $162k per year (Estimated)
Location
In office (Londonderry)
Seniority
Senior · 10+ years exp
Visa
H-1B filings in 12 months: 5

Confirmed on the employer's own hiring board on Oct 27, 2026. First seen by Alion on Oct 25, 2026. L3Harris Technologies scores A on the Alion truth index.

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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: Senior Specialist, Systems Engineer

Job Code: 43509

Job Location: Londonderry, NH

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

Job Description:

L3Harris Integrated Vision Solutions (IVS) is seeking a highly motivated Senior Systems Engineer to join our engineering team in Londonderry, NH. In this role, you will contribute to the end to end development, integration, and transition to production of advanced soldier borne and platform mounted sensing systems. IVS products include aiming lasers, laser range finders, low light and fused sensor systems, mobility sensors, and other ruggedized integrated vision technologies supporting warfighter overmatch.

This position provides hands on engineering engagement, technical leadership, and cross disciplinary collaboration. You will work closely with optical, sensor, mechanical, electrical, firmware, and manufacturing engineers to design and deliver products that move from concept to prototype to full-rate production. We are looking for versatile engineers who thrive in a fast paced environment and are excited by problem solving, innovation, and enabling mission success.

Essential Functions:

  • Perform engineering trade studies and analysis on existing and emerging IVS product technologies.
  • Translate customer and system requirements into architectures, design concepts, and interface definitions.
  • Provide systems engineering guidance across multidisciplinary teams (sensors, optics, mechanics, firmware, electronics).
  • Develop and maintain system-level specifications, requirements, and verification methods.
  • Conduct hands-on system build, integration, debugging, and performance testing.
  • Lead technical problem solving throughout prototype development and production transition.
  • Support technical risk management, configuration management, and requirements traceability activities.
  • Collaborate with program management, operations, and manufacturing engineering to ensure smooth production ramp and sustainment.

Qualifications:

  • Bachelor’s Degree in any relevant engineering field and minimum 6 years of prior relevant experience. Graduate Degree and a minimum of 4 years of prior related experience. In lieu of a degree, minimum of 10 years of prior related experience.

Preferred Additional Skills:

  • Proven ability to communicate technical concepts and requirements across multidisciplinary teams
  • Working knowledge of system engineering processes including requirements development, verification planning, and technical risk management
  • Strong written and verbal communication skills
  • Ability to work both independently and within small, collaborative technical teams.
  • Experience developing military or ruggedized products, soldier systems, or EO/IR sensors.
  • Working experience integrating and troubleshooting hardware/software systems
  • Familiarity with modeling, analysis, or simulation of electro optical systems is a plus.
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