Systems Engineer

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 is the Trusted Disruptor in defense tech. 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 Specialist, Systems Engineer - ELINT Job Code: 39540 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: L3Harris is seeking a Systems Engineering Specialist who will be involved in activities directly related to the design, and development of complex, specialized SIGINT hardware/software systems to process and manipulate ISR data from multiple data sources. Essential Functions: * Works closely with the customer to comprehensively design and implement new system functionality. * Writes requirements, supports development, performs integration testing of new or modified products in a Systems Integration Laboratory and on airborne and ground-based platforms. * Verifies and validates new baseline functionality while ensuring legacy functionality continues to work as intended. * Interface with other Systems Engineers, Agile Development Engineering, Flight Line Test, Product Development, and Project Engineering to understand new baseline functionality. * Work closely with L3Harris Internal Research and Development (IR&D) developing proprietary ELINT technology and capabilities. * Follow existing standards to document system testing status and anomalies with system hardware and software and verifies subsequent anomaly fixes. * Interfaces with the customer to ensure their satisfaction with system performance. * Work with management to develop and adhere to schedules and budgets required to accomplish assigned work. * Provide regular status updates for ongoing work efforts to management and the customer. * Work effectively in a fast-paced, dynamic environment with time-critical requirements. * Effective cross-functional communication skills supporting program execution from development through integration and delivery. * Analysis of customer requirements, including system and sub-system trade studies, and detailed hardware and software specifications for systems, subsystems, and key components. * Development of test planning/procedures of various test equipment including anechoic chambers, spectrum analyzers, and network analyzers. * Entire Program/Engineering Life Cycle Phases and Activities. * IRAD and Technical Baseline development. * Requirements Management. * Strong problem‑solving abilities with thorough documentation, verification, and validation practices * Proficiency in digital signal processing (DSP) with strong MATLAB skills for algorithm development, modeling, simulation, and data analysis * Solid understanding of DSP fundamentals including filtering, spectral analysis, FFTs, modulation, sampling theory, and noise reduction * Ability to support algorithm implementation in C, C++, or Python * Active Secret or recent TS/SCI Clearance with the ability to maintain. * Working contract proposals. * Travel up to 10%. * Other duties as assigned by Supervisor. Qualifications: * Bachelor's Degree and minimum 6 years of prior relevant engineering experience. * Graduate Degree and a minimum of 4 years of prior related engineering experience. * In lieu of a degree, a minimum of 10 years of prior related engineering experience. * Demonstrated understanding of RF and microwave fundamentals, including antennas, receivers, spectral behavior, and front-end design. * Demonstrated experience with signals analysis techniques and tools, including pulse analysis, modulation assessment, and emitter characterization. * Demonstrated knowledge of radar fundamentals such as pulse radar, CW/FMCW, LPI principles, scan patterns, and threat system behavior. Preferred Additional Skills: * Active TS/SCI Clearance * Experience with integration and troubleshooting of complex RF or electronic warfare receiver systems. * Experience with JIRA, Confluence, and DOORS for requirements and workflow management. * Experience in MATLAB and Python for algorithm development, modeling, automation, data analysis, and visualization. * Experience working with large IQ/sample data sets and developing automated processing workflows. * Experience with advanced DSP algorithm development and implementation. * Familiarity with system‑level SEI, LPI/LPE techniques, or advanced emitter analysis methodologies. * Experience in software integration and system-level test. * Proficiency with standard office and documentation tools. #LI-AM2 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 ( .