Systems Engineer Sr - E3
Confirmed on the employer's own hiring board on Nov 2, 2026. First seen by Alion on Oct 16, 2026. Lockheed Martin scores A on the Alion truth index.
Standard Job Description
Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future.
At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity.
Join us in shaping a new era in space and find a career that's built for you.
This role of software integrator will be responsible for the integration, testing, and deployment of complex software systems within Lockheed Martin mission-critical environments. This role supports the design, implementation, and maintenance of software interfaces, data pipelines, and system interoperability solutions across multidisciplinary teams. The position requires advanced technical expertise in software integration patterns, rigorous testing methodologies, and compliance with LM software development standards and applicable regulatory requirements.
Key Responsibilities:
- Lead the integration of commercial and government-off-the-shelf (COTS/GOTS) software systems with custom mission applications
- Design, implement, and document software interfaces, APIs, and data mapping specs ensuring ECI/CUI compliance
- Perform end-to-end system testing, including unit, integration, and validation testing per LM quality assurance protocols
- Collaborate with systems engineers, cybersecurity specialists, and program managers to resolve integration issues and optimize system performance
- Maintain and update integration documentation, including technical designs, test plans, and release notes
- Support continuous integration/continuous deployment (CI/CD) pipelines and automate integration workflows where applicable
- Ensure adherence to Lockheed Martin software development lifecycle (SDLC), configuration management, and security protocols
The information below reflects the standard job description for this position
Performs technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems. Analyses are performed at all levels of total system product to include: concept, design, fabrication, test, installation, operation, maintenance and disposal. Ensures the logical and systematic conversion of customer or product requirements into total systems solutions that acknowledge technical, schedule, and cost constraints. Performs functional analysis, timeline analysis, detail trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and software specifications. For positions that perform IT responsibilities, use E646, Systems Engr-IT.
Basic Qualifications
- Bachelor’s degree in Computer Science, Software Engineering, or related field, or equivalent practical experience
- Extensive experience in software integration, system interfacing, or embedded software development
- Proven experience with software integration frameworks, middleware, and enterprise service buses (ESB) or similar integration patterns
- Strong proficiency in at least one modern programming language (C++, Python, Java, or C#) and associated build tools
- Experience with version control systems (Git), continuous integration pipelines, and automated testing frameworks
- Secret clearance with the ability to obtain and maintain TS clearance
- Demonstrated ability to work in a multidisciplinary team environment and communicate technical concepts clearly
Desired Skills
- Master’s degree in a relevant technical discipline
- 5+ years of progressive experience in software integration, system interfacing, or embedded software development
- Experience with defense acquisition lifecycle and IC/DoD software integration standards (e.g., MIL-STD, DO-331)
- Familiarity with containerization (Docker, Kubernetes) and orchestration tools
- Prior experience with Lockheed Martin software platforms or integrated mission systems
- Professional certifications (e.g., TOGAF, SAFe, or relevant integration/tool certifications)
Pay Information
Full-Time Salary Range: $95900.00 - $178100.00
At 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.
The 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.
Benefits 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.
- Annual 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.
- For (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. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.