> Markdown version of [/jobs/ext/3597621-systems-engineer-it-infrastructure](https://www.wearedevelopers.com/jobs/ext/3597621-systems-engineer-it-infrastructure). 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 -IT Infrastructure

- **Company:** CareerCircle
- **Location:** Nashua, NH, United States
- **Experience:** Experienced
- **Salary:** $166,400.0 - $218,400.0
- **Contract:** Temporary contract
- **Skills:** Proxmox, Agile Methodology, Systems Engineering, Configuration Management, Complex Networks, CompTIA Network+, CompTIA Security+, Cyber Security, Linux, Hardware Design, Hardware Interface Design, Interoperability, Virtual Private Networks (VPN), Python (Programming Language), Network Security, Network Architecture, Network Segmentation, Systems Development Life Cycle, Software Engineering, Verification and Validation (Software), Systems Architecture, Systems Integration, Software Technical Review, Virtual Local Area Networks, Virtual Machines, Virtualization Technology, Wireless Networks, Network Switches, Network Routing, C4ISR, MagicDraw, Computer Network Technologies, Virtual Environment, Firewalls (Computer Science), Juniper, SC Clearance, Containerization, Integration Tests, Information Technology, Cisco, Docker
- **Published:** October 6, 2026
- **Apply:** https://www.careercircle.com/jobs/all/all/usa/nh/nashua/b62442c7-4084-4851-a4fe-e7a2c5e2d6ae

## About the Role

Optics
Visionary
Innovation
Electronics
Reliability
Simulations
Prioritization
Product Lining
Test Equipment
Systems Design
Secret Clearance
Systems Modeling
Agile Methodology
Space Exploration
Systems Engineering
Systems Architecture
Organizational Skills
Requirements Analysis
Electrical Engineering
New Product Development
Software Technical Review
Engineering Design Process
Verification And Validation
Milestones (Project Management)
Model Based Systems Engineering
Troubleshooting (Problem Solving)
Top Secret-Sensitive Compartmented Information (TS/SCI Clearance)
Command Control Communications Computers Intelligence Surveillance And Reconnaissance (C4ISR), * Active U.S. Government Secret security clearance, with the ability to obtain and maintain a Top Secret clearance.

 * Bachelors degree in Engineering, Science, or a related technical discipline with 8+ years of relevant experience, or Masters degree with 6+ years, or Ph.D. with 4+ years.
 * Demonstrated experience performing systems engineering across the development lifecycle.
 * Experience with requirements analysis, decomposition, derivation, systems modeling/simulation, system design and development, IV&V, and environmental testing.
 * Experience with test equipment and hardware integration.
 * Experience working effectively on multidisciplinary engineering teams.
 * Strong organizational skills with the ability to prioritize multiple technical activities.

Additional Skills & Qualifications

 * Active Top Secret/SCI clearance.
 * Experience with Software Defined Radios (SDRs) and/or radar systems.
 * RF domain knowledge.
 * Previous experience developing or integrating space-qualified hardware or space payloads.
 * Model-Based Systems Engineering (MBSE) experience using MagicDraw or comparable tools.
 * Familiarity with Agile methodologies and tools.
 * Masters degree in Electrical Engineering, Systems Engineering, or a related engineering discipline., Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors., Actalent

Nashua, NH*On-Site

Radar
Optics
Visionary
Innovation
Electronics
Reliability
Simulations
Prioritization
Product Lining
Test Equipment
Systems Design
Secret Clearance
Systems Modeling
Agile Methodology
Space Exploration
Systems Engineering
Systems Architecture
Organizational Skills
Requirements Analysis
Electrical Engineering
New Product Development
Software Technical Review
Engineering Design Process
Verification And Validation
Milestones (Project Management)
Model Based Systems Engineering
Troubleshooting (Problem Solving)
Top Secret-Sensitive Compartmented Information (TS/SCI Clearance)
Command Control Communications Computers Intelligence Surveillance And Reconnaissance (C4ISR), Linux, Proxmox
Firewall
Equities
Hardening
Operations
Leadership
Market Data
Communication
Cyber Security
Subcontracting
Virtualization
Access Controls
Network Routing
Network Switches
CompTIA Network+
Containerization
Virtual Machines
Network Security
Secret Clearance
Interoperability
Complex Networks
Technical Issues
Docker (Software)
CompTIA Security+
Wireless Networks
IT Infrastructure
Cyber Engineering
System Deployment
Systems Engineering
Systems Integration
Integration Testing
Engineering Support
Virtual Environment
Software Engineering
Demonstration Skills
Network Segmentation
Network Architecture
Developmental Testing
Network Infrastructure
Change Control Process
Technical Documentation
Configuration Management
Commercial Off-the-Shelf
Government Off-The-Shelf
Risk Management Framework
Verbal Communication Skills
System Interface Management
Configuration Documentation
Juniper Network Technologies
Virtual Private Networks (VPN)
Systems Development Life Cycle
Troubleshooting (Problem Solving)
Virtual Local Area Network (VLAN)
Cisco Certified Network Associate
Cisco Certified Network Professional
Small-Unmanned Aerial Systems (S-UAS)
Juniper Networks Certified Internet Specialist
+0, Proxmox
Firewall
Equities
Hardening
Operations
Leadership
Market Data
Communication
Cyber Security
Subcontracting
Virtualization
Access Controls
Network Routing
Network Switches
CompTIA Network+
Containerization
Virtual Machines
Network Security
Secret Clearance
Interoperability
Complex Networks
Technical Issues
Docker (Software)
CompTIA Security+
Wireless Networks
IT Infrastructure
Cyber Engineering
System Deployment
Systems Engineering
Systems Integration
Integration Testing
Engineering Support
Virtual Environment
Software Engineering
Demonstration Skills
Network Segmentation
Network Architecture
Developmental Testing
Network Infrastructure
Change Control Process
Technical Documentation
Configuration Management
Commercial Off-the-Shelf
Government Off-The-Shelf
Risk Management Framework
Verbal Communication Skills
System Interface Management
Configuration Documentation
Juniper Network Technologies
Virtual Private Networks (VPN)
Systems Development Life Cycle
Troubleshooting (Problem Solving)
Virtual Local Area Network (VLAN)
Cisco Certified Network Associate
Cisco Certified Network Professional
Small-Unmanned Aerial Systems (S-UAS)
Juniper Networks Certified Internet Specialist
+0

Google IT Automation with Python

## Description

We are seeking an experienced Principal Systems Engineer to join our team, supporting advanced space systems and mission payloads within the C4ISR Systems business area. In this role, you will work as an individual contributor within a multidisciplinary engineering team, developing solutions for complex space payloads and space-qualified hardware. This position provides exposure across the complete systems engineering lifecycle and supports key customer and program milestones.
Responsibilities

 * Perform systems engineering activities throughout the full product development lifecycle, including requirements analysis, decomposition, derivation, and allocation.
 * Conduct system modeling and simulation, system architecture, design, and development.
 * Handle integration, verification, and validation (IV&V) and conduct environmental testing.
 * Support hardware integration and test equipment activities for complex space systems.
 * Collaborate with multidisciplinary teams including Systems, Electrical, RF, Software, Mechanical, and Test Engineering.
 * Support development, integration, troubleshooting, and verification of space payload solutions.
 * Participate in key technical reviews, program milestones, and customer-facing engineering activities.
 * Manage multiple technical priorities in a fast-paced engineering environment.