{"id":2537126,"url":"https://alion.io/job/lockheed-martin-software-engineer-sr-e3-55","title":"Software Engineer Sr - E3","company":{"id":37086,"name":"Lockheed Martin","domain":"lockheedmartin.com","url":"https://alion.io/company/lockheedmartin","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Eightfold","truth_index":{"grade":"A","score":99,"open_postings":119,"ghost_share":0,"stale_share":0,"repost_share":0.05,"time_to_fill_p50_days":28,"computed_at":"2026-10-14T06:34:16Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Fort Worth, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":98100,"max":182100,"currency":"USD","period":"year","gross":null,"usd_annual":182100},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"Java","optional":false},{"name":"Linux","optional":false},{"name":"RTOS","optional":false},{"name":"Bitbucket","optional":true},{"name":"GitLab","optional":true},{"name":"Jenkins","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-10-08T03:52:12Z","employer_posted_date":"2026-10-14","last_verified_at":"2026-10-15T01:31:07Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":7},"description":"Standard Job Description\nThe Software Integration Team (SWIT) Threat Environment Engineer plans, integrates, conducts, and supports development of high-fidelity, real-time simulation capabilities integrating radar-emitter models, RF propagation, and mission-level software.\nThe engineer designs, implements, documents, tests, and debugs software that delivers logical and technical solutions for joint-force training and mission-planning tools.\nIn addition to design and debugging, the engineer diagnoses and resolves program errors, produces operating instructions, and compiles documentation while analyzing system capabilities to meet intent, output, and data-acquisition requirements.\nApplying Lockheed Martin standards and leveraging deep knowledge of RTOS, radar/EM modeling, and simulation frameworks, the engineer builds robust, maintainable applications and guarantees strict adherence to software and security standards.\nWhat You’ll Be Doing\nDevelop and maintain a joint-simulation environment implementation that incorporates real-time operating systems, RF emitter (radar) models, and constructive/virtual simulation integration.\nDesign, implement, and validate radar-mode algorithms (continuous-wave, pulse-Doppler, FMCW, etc.), sweep patterns, and target-track generation.\nIntegrate simulation environment and plug-ins with mission system software ensuring deterministic timing and low-latency data exchange.\nOwn CI/CD pipelines for code, automate regression testing, and verify real-time performance.\nWork closely with RF engineers, system architects, and mission system software engineers to translate operational requirements into simulation capabilities.\nParticipate in daily scrums, sprint reviews, and technical demos; provide status updates and risk assessments to leadership.\nWhy This Role Is Exciting\nInfluence the development of joint-force training tools that directly support mission-critical aerospace programs.\nCollaborate with multidisciplinary teams-RF engineers, avionics developers, test pilots, and customer specialists.\nApply cutting-edge RTOS and radar-modeling techniques to create world-class simulation fidelity.\nContribute to a high-performing, multi-program environment where each day presents a new technical challenge.\nWho You Are\nProven experience planning, prioritizing, and executing complex simulation projects.\nStrong communicator who can bridge software and domain-specific (radar/EM) expertise.\nPassionate about solving difficult problems, learning emerging technologies, and delivering high-quality results.\nProven software development expertise in design, coding, and testing to support simulation tools and applications.\nPassion for travel and cultural exploration, fostering adaptability and a global perspective in collaborative engineering contexts.\nBasic Qualifications\nBachelor's degree or above from an accredited college/university in a STEM discipline (or equivalent experience)\nExperience developing software on Linux\nExperience with simulation software Environments\nExperience programming in C++ and/or Java\nDesired Skills\nExperience with CI tools, such as Jenkins, GitLab, or Bitbucket\nExperience with Real-time software development and integration\nExperience programming in Python\nA strong interest in supporting software development for airborne systems\nExperience with aircraft sensors, datalinks, navigation, and/or weapons\nExperience with Open Mission Systems\nExperience leading software projects\nPay Information\nFull-Time Salary Range: $98100.00 - $182100.00\nAt Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow-both professionally and personally.\nThe salary range for this position is as listed on the requisition. Please note that the salary information listed is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market(work location) and business considerations when extending an offer.\nBenefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.\nAnnual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.\nFor (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. 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