Principal Optical Engineer

Company OverviewWe are a world-class team of professionals who deliver next generation technology and products in robotic and autonomous platforms, ground, soldier, and maritime systems in 50+ locations world-wide. Much of our work contributes to innovative research in the fields of sensor science, signal processing, data fusion, artificial intelligence (AI), machine learning (ML), and augmented reality (AR).QinetiQ US’s dedicated experts in defense, aerospace, security, and related fields all work together to explore new ways of protecting the American Warfighter, Security Forces, and Allies. Being a part of QinetiQ US means being central to the safety and security of the world around us. Partnering with our customers, we help save lives; reduce risks to society; and maintain the global infrastructure on which we all depend.Why Join QinetiQ US?If you have the courage to take on a wide variety of complex challenges, then you will experience a unique working environment where innovative teams blend different perspectives, disciplines, and technologies to discover new ways of solving complex problems. In our diverse and inclusive environment, you can be authentic, feel valued, be respected, and realize your full potential. QinetiQ US will support you with workplace flexibility, a commitment to the health and well-being of you and your family and provide opportunities to work with a purpose. We are committed to supporting your success in both your professional and personal lives.Position OverviewQinetiQ US is looking for a Principal Optical Engineer experienced in electro-optic/ infrared (EOIR) imaging sensor optical design, laboratory optical characterization, and prototype integration with a willingness to learn new skills to join our team.In this role you will contribute directly to products and systems ensuring our Warfighters have overmatch against our adversaries and our Homeland is secure. You’ll support programs to provide our customers with capabilities like long-range optics for scout surveillance and fires support, body-worn EOIR sensors, fire control, and more— you’ll help provide the sensing capability that enables the ‘observe’ stage of the OODA (observe, orient, decide, act) loop.You will work with Key technologies, including:Multi-band visible and infrared imaging optics including near infrared NIR, shortwave (SWIR), midwave (MWIR), and longwave (LWIR)EOIR sensorsTactical lasers, Class 1–4Optical boresight and stabilizationSuccess in this role is defined as delivering robust EOIR optical designs, guiding prototype integration, and collaborating effectively across engineering disciplines to transition systems into production.ResponsibilitiesLead the design and development of multi-band multi-aperture EOIR imaging sensor, lens, and laser subassemblies for next-generation defense systems. Work with multidisciplinary engineering teams to support the entire product life cycle, from conceptualization, prototyping, validation, manufacturing, fielding, to sustainment. This role will have responsibility in the following areas:Requirements Analysis and Specification DefinitionDecompose customer system requirements and performance specifications and define opto-mechanical, imaging sensor, and display specifications.Perform DRI (detection, recognition, identification) range analysis of multi-band electro-optical/ infrared (EOIR) systems.Imaging Sensor Optical DesignGenerate baseline reference optical designs in Zemax or similar software for further design and fabrication by external vendors.Simulate laser parameters with Zemax or relevant software.Select appropriate components including, sensors, displays, optical stabilization systems, and lenses, and lasers to meet program requirements.Interpret stray light analysis and generate specific design recommendations for baffles, coatings, stops, etc., to minimize stray light in systems.Laboratory Optical CharacterizationMaintain and utilize an optical laboratory to support development, testing, and prototyping efforts, including equipment such as integrating spheres, collimators, optical alignment stations for centration and tip/tilt, and more.Characterize performance of EOIR sensors, typically broadband focal plane array type.Test and validate delivered optical assemblies to ensure compliance with specifications and requirements.Design new tests and test stations and construct laboratory apparatus as needed to support program test and validation requirements. Prototype IntegrationBuild and integrate EOIR prototype subsystems, including cameras, optics, and lasers.Perform precise alignment and boresighting of optical components and sub-assemblies in multi-aperture multi-band and imaging and laser systems.Transition to ManufacturingGenerate technical documentation and reports.Provide optical subject matter expertise to program managers and manufacturing staff.Assist in creating manufacturing work instructions.Transition relevant fabrication or test benches from the prototyping to manufacturing environments.Required QualificationsBachelor’s degree in optical engineering or closely related field10+ years of experience in imaging and laser optical design, including:Specifying EOIR and imaging sensor optical componentsModeling imaging sensor systems to predict system performance for detection, recognition, and identification range of objectsDesigning and modeling lenses and other optical components in Zemax, CODE V, or other relevant industry-standard software packagesIntegrating imaging sensors, optical assemblies, and lasers into optical benches and system prototypesManipulating visible and invisible pulsed and continuous laser sourcesWorking in laboratory environments including expertise with opto-mechanical assembly, alignment tools, optical bore sightingKnowledgeable in techniques and specifications for Optical Image Stabilization (OIS) and Fast Steering Mirrors (FSM)Occasional (up 10%) travel to support project needs, including to QinetiQ sites, customer sites, military installations, and other locationsMust currently hold an Active DoD Secret or higher-level clearance #qinetiqclearedjobPreferred QualificationsBackground working in the defense or aerospace industryExperience modeling sensor systems in NVIPM (Night Vision Integrated Performance Model) or similar packageAbility to mentor junior optical engineersHyperspectral system designStrong technical writing and presentation skillsExperience with laser designators, laser range finders, laser dazzlers, and other tactical laser systems, and methods of beam steeringExperience specifying displays, especially near-eye displays for systems such as sights, binoculars, and AR/VR systemsA solid knowledge of relevant optical component suppliersPay TransparencyThe salary range for this role is $164,500- $213,500 USD. The salary range provided is a good faith estimate representative of all experience levels. QinetiQ US 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.Company EEO StatementAccessibility/Accommodation:If because of a medical condition or disability you need a reasonable accommodation for any part of the employment process, please send an e-mail to View email address on click.appcast.io or call View phone number on click.appcast.io Opt. 1 and let us know the nature of your request and contact information.QinetiQ US is an Equal Opportunity employer. All Qualified Applicants will receive equal consideration for employment without regard to race, age, color, religion, creed, sex, sexual orientation, gender identity, national origin, disability, or protected Veteran status.Job SummaryJob ID: 2026-12186Posted Date: EngineeringJob Location: US-VA-Lorton