Systems Engineer Sr - E3

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:

1. Lead the integration of commercial and government-off-the-shelf (COTS/GOTS) software systems with custom mission applications
2. Design, implement, and document software interfaces, APIs, and data mapping specs ensuring ECI/CUI compliance
3. Perform end-to-end system testing, including unit, integration, and validation testing per LM quality assurance protocols
4. Collaborate with systems engineers, cybersecurity specialists, and program managers to resolve integration issues and optimize system performance
5. Maintain and update integration documentation, including technical designs, test plans, and release notes
6. Support continuous integration/continuous deployment (CI/CD) pipelines and automate integration workflows where applicable
7. 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

1. Bachelor’s degree in Computer Science, Software Engineering, or related field, or equivalent practical experience
2. Extensive experience in software integration, system interfacing, or embedded software development
3. Proven experience with software integration frameworks, middleware, and enterprise service buses (ESB) or similar integration patterns
4. Strong proficiency in at least one modern programming language (C++, Python, Java, or C#) and associated build tools
5. Experience with version control systems (Git), continuous integration pipelines, and automated testing frameworks
6. Secret clearance with the ability to obtain and maintain TS clearance
7. Demonstrated ability to work in a multidisciplinary team environment and communicate technical concepts clearly

Desired Skills

1. Master’s degree in a relevant technical discipline
2. 5+ years of progressive experience in software integration, system interfacing, or embedded software development
3. Experience with defense acquisition lifecycle and IC/DoD software integration standards (e.g., MIL-STD, DO-331)
4. Familiarity with containerization (Docker, Kubernetes) and orchestration tools
5. Prior experience with Lockheed Martin software platforms or integrated mission systems
6. Professional certifications (e.g., TOGAF, SAFe, or relevant integration/tool certifications)