Model-Based Systems Engineer

Primordial Labs; United States; Remote; USD 120,000 - 165,000; Full time

Job summary

Primordial Labs is seeking a seasoned Systems Engineer to build and maintain a comprehensive system model that shows how software services, deployments, hardware, networks, and partner systems fit together. You will collaborate with software engineers to ensure the model reflects current designs and guides technical decisions.

The role requires MBSE experience, SysML v2 proficiency, and strong understanding of software architecture, microservices, APIs, and CI/CD within agile delivery.

Qualifications

• 5+ years in systems engineering on software/networked systems.
• 3+ years hands-on MBSE and end-to-end model ownership.
• Experience with SysML v2 or similar modeling language.
• Knowledge of software architecture, microservices, distributed systems, APIs, version control, CI/CD, and agile delivery.
• Ability to explain architecture clearly to non-engineers.
• Strong writing to translate user needs into system behavior.

Responsibilities

• Own the system model from initial design through ongoing development and maintenance.
• Represent services, APIs, data flows, deployments, software processes, and their hardware and network interfaces.
• Work with engineers to understand and model software design, testing, and release practices.
• Map system architecture to partner and government reference frameworks.
• Define requirements and trace them through verification.
• Provide model content for design reviews, proposals, and other technical deliverables, while helping establish systems engineering practices.

Skills

SysML

Model-based systems engineering

Software architecture

Microservices

Distributed systems

APIs

CI/CD

Agile delivery

Job description

Role overview

Build and maintain the system model that explains how software services, deployments, hardware, networks, and partner systems fit together. You’ll work alongside software engineers to keep that model aligned with how systems are designed and delivered, and use it to support technical decisions and program work.

Responsibilities

• Own the system model from initial design through ongoing development and maintenance.


• Represent services, APIs, data flows, deployments, software processes, and their hardware and network interfaces.


• Work with engineers to understand and model software design, testing, and release practices.


• Map system architecture to partner and government reference frameworks.


• Define requirements and trace them through verification.


• Provide model content for design reviews, proposals, and other technical deliverables, while helping establish systems engineering practices.

Requirements

• At least five years of systems engineering experience on software-intensive or networked systems, including three or more years of hands‑on model‑based systems engineering and end‑to‑end model ownership.


• Expertise with SysML, preferably version 2, or a comparable modeling language, including system structure, behavior, and interfaces.


• Strong understanding of software architecture, microservices, distributed systems, APIs, version control, CI/CD, and agile delivery.


• Ability to model software development processes and explain technical architecture clearly to non-engineers.


• Clear writing and the ability to translate user needs and desired system behavior for engineering teams.

Nice to have

• Experience shaping systems engineering practices in a growing organization and working with partner or government program frameworks.