Software Systems Engineer Sr - Level 3
Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Sep 17, 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.
- Drafting, reviewing, and executing Systems level software test plans and procedures
- Review Software features and capabilities and top create end to end integrated solutions
- Collaborate with Software Engineers on feature design and implementation
Our team leverages industry standard open-source software solutions such as GitLab, Kubernetes, Docker, and Rancher. Our automation-first and “everything as code” mindset allows our software engineers to focus their time and efforts on what is most important - building cutting edge functionality for our end users.
As a Software Systems Engineer on an Agile Scrum Team, you will have the opportunity to rapidly develop and deploy Integration and Test solutions for a complex space system following core engineering principles, ultimately enabling the delivery of fully functioning mission capability to end users securely and continuously.
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.
Basic Qualifications
- Recent on-program Systems Engineering experience for a Software product (e.g., requirements development, systems test planning/execution, requirements analysis and verification, integration, etc.)
- Demonstrated experience with applying systems engineering principles, concepts, and methods
- Demonstrated experience with system integration, verification, and validation
- Experience working on large-scale, agile software projects with multiple teams and stakeholders
- Must be able to acquire and maintain Top Secret/SCI clearance
Desired Skills
- Experience in MBSE principles, concepts, and tools such as Cameo
- Develop and implement system test plans, procedures, and protocols
- Support the integration, verification, and validation of systems and subsystems
- Develop and maintain system architecture, design, and performance requirements in an Agile environment
- Perform system analysis, modeling, simulation, and trade studies
- Experience developing and maintaining automated system tests
- Experience with Agile tools, such as JIRA and Confluence
- Experience with cloud environments (AWS, Azure, Openstack, GCP, etc.) or traditional IT systems
- Excellent communication and interpersonal skills, with the ability to work effectively in a team environment
- Strong problem-solving and analytical skills, with attention to detail and ability to think critically
- Ability to adapt to changing priorities and deadlines, with a focus on delivering high-quality results
- Familiarity with the Space Domain
- Experience with defensive cyber (e.g., penetration testing)
- Active TS/SCI security clearance
Pay Information
Full-Time Salary Range: $110300.00 - $204900.00
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.