Senior Principal System Engineer

Fruition Group US; United States; On-site; USD 160,000 - 300,000; Full time

Benefits offered by this job

Equity / stock options

Healthcare benefits

Paid time off

Job summary

Fruition Group US is seeking Sr./Lead-level Systems Engineers to design, integrate, and deliver complex space missions spanning spacecraft platforms, payloads, flight software, ground systems, and operations.

You will guide architecture, requirements, verification, and mission readiness across the full lifecycle, mentoring teams and driving MBSE practices. On-site roles in the USA, with base salary plus equity, offer impactful work in national security and commercial space domains.

Qualifications

• 5+ years of systems engineering, spacecraft engineering, mission engineering, or related aerospace disciplines.
• Experience with complex multidisciplinary technical systems.
• Strong understanding of spacecraft subsystems, mission architecture, and system-level integration.
• Experience developing requirements, ICDs, verification strategies, and technical reviews.
• Ability to analyse complex engineering problems and communicate solutions across teams.
• 8–10+ years of aerospace systems engineering experience preferred.
• Experience owning major spacecraft or mission-level technical areas.
• Proven ability to lead technical decisions and influence cross-functional teams.
• Experience with system architecture, AI&T, verification campaigns, and mission readiness activities.

Responsibilities

• Develop and manage spacecraft and mission system architectures.
• Define system requirements, interfaces, verification plans, and technical documentation.
• Lead system integration across spacecraft hardware, payloads, avionics, flight software, communications, GNC, and ground systems.
• Perform mission analysis, trade studies, and technical risk assessments.
• Support spacecraft integration, qualification, verification, and operational readiness activities.
• Develop mission concepts, operational scenarios, and ConOps documentation.
• Coordinate technical interfaces across internal engineering teams, suppliers, and customers.
• Support anomaly resolution, system performance analysis, and mission operations.
• Drive MBSE, requirements management, and systems engineering best practices.
• Provide technical leadership and mentorship to engineering teams.

Skills

Systems engineering

MBSE

Technical leadership

Requirements analysis

GNC

Technical communication

Tools

MATLAB

Python

SysML

MBSE

DOORS

Jama

STK

GMAT

FreeFlyer

Job description

$160,000 – $300,000+ Base Salary + Equity

USA - role is on-site but can be based in New York, Colorado or California

I am currently working with rapidly growing space technology companies building next-generation satellite platforms, space domain awareness capabilities, and advanced mission systems.

We are seeking talented Systems Engineers across Senior, Principal, and Lead levels to support the design, integration, and delivery of complex space missions spanning spacecraft platforms, payloads, flight software, ground systems, and mission operations.

This is an opportunity to work at the intersection of spacecraft engineering, mission architecture, systems integration, and operational execution, helping deliver innovative capabilities for commercial and national security customers.

The Role

As a Systems Engineer, you will serve as a key technical integrator across multidisciplinary engineering teams, ensuring spacecraft and mission systems are designed, verified, and delivered successfully.

You will work across the full mission lifecycle from early architecture and requirements development through integration, testing, launch preparation, and on-orbit operations.

Depending on experience level, you may lead technical areas, own mission architectures, drive engineering processes, mentor teams, and influence the future direction of space platforms.

Key Responsibilities

• Develop and manage spacecraft and mission system architectures
• Define system requirements, interfaces, verification plans, and technical documentation
• Lead system integration across spacecraft hardware, payloads, avionics, flight software, communications, GNC, and ground systems
• Perform mission analysis, trade studies, and technical risk assessments
• Support spacecraft integration, qualification, verification, and operational readiness activities
• Develop mission concepts, operational scenarios, and ConOps documentation
• Coordinate technical interfaces across internal engineering teams, suppliers, and customers
• Support anomaly resolution, system performance analysis, and mission operations
• Drive MBSE, requirements management, and systems engineering best practices
• Provide technical leadership and mentorship to engineering teams

Required Experience

• 5+ years of experience in systems engineering, spacecraft engineering, mission engineering, or related aerospace disciplines
• Experience working with complex multidisciplinary technical systems
• Strong understanding of spacecraft subsystems, mission architecture, and system-level integration
• Experience developing requirements, interface control documents (ICDs), verification strategies, and technical reviews
• Ability to analyse complex engineering problems and communicate solutions across teams
• 8–10+ years of aerospace systems engineering experience preferred
• Experience owning major spacecraft or mission-level technical areas
• Proven ability to lead technical decisions and influence cross-functional teams
• Experience with system architecture, AI&T, verification campaigns, and mission readiness activities
• Ability to mentor engineers and establish scalable engineering processes
• Spacecraft platforms, CubeSat, SmallSat, hosted payloads, or satellite constellations
• Space Domain Awareness (SDA), remote sensing, Earth observation, or national security missions
• Mission operations, launch campaigns, and on-orbit support
• Guidance, Navigation & Control (GNC) systems and spacecraft dynamics
• Communications systems, RF architectures, and link budgets
• Ground segment development and operational concepts
• STK, GMAT, FreeFlyer, or other mission analysis tools
• MATLAB, Python, SysML, MBSE, DOORS, Jama, or similar engineering tools
• Experience with DoD, intelligence community, or government space programs

We are interested in engineers from

• Defence and national security programs
• Earth observation and remote sensing platforms
• Aerospace and autonomous systems
• Advanced technology startups

Eligibility Requirements

Due to the nature of the work, candidates must be eligible to support U.S. export-controlled programs and may require U.S. Person status and/or the ability to obtain a security clearance.

• $160,000 – $300,000+ base salary depending on level and experience
• Equity / stock options
• Comprehensive healthcare benefits
• Competitive PTO and paid holidays
• Opportunity to work on groundbreaking space technology

If you are a Systems Engineer looking to take ownership of complex aerospace missions and help shape the future of space systems, I’d love to connect.