> Markdown version of [/jobs/ext/2188572-systems-engineer-stf-e4](https://www.wearedevelopers.com/jobs/ext/2188572-systems-engineer-stf-e4). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Engineer Stf - E4 - **Company:** Lockheed Martin - **Location:** Orlando, FL, United States - **Experience:** Expert - **Salary:** $104,900.0 - $194,700.0 - **Contract:** Permanent contract - **Skills:** Systems Engineering, MATLAB, Requirements Management, Software Requirements Analysis, Systems Modeling Language, Systems Architecture, DOORS (Software), SC Clearance, Modeling and Simulation - **Published:** August 22, 2026 - **Apply:** https://www.careerjet.com/job/use6ef4c8b16ca8fb569ca7caa9f304a6b/eaa ## About the Role We're looking for a highly skilled and experienced Systems Design & Requirements Engineer to join our team. If you have a Bachelor's degree in an engineering discipline or equivalent professional experience, and experience with DOORS 9.7, we encourage you to apply. You should also have experience performing trade studies and be able to obtain a DoD Secret clearance, as U.S. citizenship is required. As a detail-oriented and analytical individual with excellent technical skills, you will thrive in this role, contributing to the success of our programs and advancing your career in a dynamic and supportive environment., MUST BE A U.S. CITIZEN - This position is located at a facility that requires special access. The selected candidate must have the ability to obtain a Secret Security Clearance. An Interim Secret Clearance is required to start., * Bachelor's degree or higher in an engineering discipline or equivalent professional experience with 7+ years professional experience * Familiar with DOORS, MATLAB, Model Based Systems Engineering (MBSE) using Cameo. * Experience with requirements derivation, flowdown, management * Interim Secret Clearance is required to start --- ## Desired Skills * Proficient in DOORS, MATLAB, Model Based Systems Engineering (MBSE) using Cameo. * Experience performing trade studies. * Understanding of basic missile and/or sensor system design principles is preferred. * Leadership experience. ## Description You will be a Systems Design & Requirements Engineer at Lockheed Martin Missiles and Fire Control in Orlando, FL, responsible for developing a system architecture using Model Based Systems Engineering (MBSE) techniques. Our team is dedicated to delivering innovative solutions, and you will play a key role in developing models for current and future system designs, and serving as the focal point for the development and communication of the system architecture for various stakeholders. What You Will Be Doing As a Systems Design & Requirements Engineer, you will be responsible for: * Developing a system architecture using MBSE techniques * Developing models for current and future system designs * Developing system and system element architectures, designs, and interface definitions * Supporting internal and external design reviews * Performing system architecture design using SysML based tools * Defining system functionality, including system states and modes * Defining system design for software requirements and functional interfaces * Synthesizing design characteristics into an implementable system architecture * Working with the requirements management team to ensure accuracy of the subsystem element model * Coordinating with the team for modeling and simulation scenarios, and predicted performance * Supporting system timelines and working with software and hardware teams * Documenting system design and implementation for various use case scenarios * Conducting model-based performance simulations to determine the impact of requirements changes on system performance and behaviors ## Related Videos - [Model Based Systems Engineering in an Agile Product Development Process](https://www.wearedevelopers.com/videos/68-model-based-systems-engineering-in-an-agile-product-development-process) - [Times of (climate) crisis - How and why sustainable software is a must!](https://www.wearedevelopers.com/videos/988-times-of-climate-crisis-how-and-why-sustainable-software-is-a-must) - [Leveraging Large Language Models for Legacy Code Translation: Challenges and Solutions](https://www.wearedevelopers.com/videos/1157-leveraging-large-language-models-for-legacy-code-translation-challenges-and-solutions) - [Kettle and Pot or Peas in a Pod? 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