Constellation Architecture Design & Simulation Engineer

Espace; Santa Clara (CA); On-site; USD 180,000 - 230,000; Full time

Job summary

E‑Space in Santa Clara hosts a pivotal role for a Constellation Modeling and Simulations Architect. You will lead architecture and baseline geometry for a next‑gen space IoT network, and oversee procurement alignment and program execution.

Your work spans end‑to‑end link budgets, regulatory planning, and capacity modeling with cross‑functional teams. You will influence ITU activities, interference analyses, and deployment strategies while mentoring engineers and coordinating with systems, RF,

Qualifications

• 5+ years in LEO/MEO constellation design and related analysis.
• Proven ability to develop and close satellite link budgets across MSS/FSS.
• Experience with ITU coordination, EPFD analyses and interference studies.
• Ability to communicate complex concepts to multidisciplinary teams.

Responsibilities

• Lead development and maintenance of the overall constellation architecture.
• Define constellation geometry to support procurement and execution.
• Develop and validate end-to-end link budgets for MSS/FSS systems.
• Perform coverage analyses and network simulations for service availability.
• Conduct interference studies and EPFD modelling for regulatory compliance.
• Produce technical docs for regulatory filings and deployment planning.
• Develop long-term capacity modeling and network growth strategies.
• Collaborate with systems engineering, payload, RF, regulatory and commercial teams.
• Provide technical leadership for constellation design throughout the program.

Skills

LEO/MEO design

Orbital analysis tools

Link budgets

ITU coordination

Regulatory submissions

Technical leadership

Cross-functional comms

Education

Aerospace/EE/Applied Physics MS

Tools

STK

GMAT

FreeFlyer

Job description

Ready to make connectivity from space universally accessible, secure and actionable? Then you’ve come to the right place!

E‑Space is bridging Earth and space to enable hyper‑scaled deployments of space‑powered Internet of Things (IoT) solutions and services. We are fundamentally changing the design, economics, manufacturing, coverage limitations and service deliveryassociated with traditional satellite and terrestrial IoT systems.

By building a highly‑advanced low Earth orbit (LEO) space system—with a unique antenna design, highly sustainable spacecraft system and low‑cost, small portable end‑user devices—we can extend global satellite coverage, capacity and connectivity beyond legacy space services to provide a new kind of IoT platform that lets users sense, track, connect and act on information gathered, anywhere.

We’re intentional, we’re unapologetically curious and we’re 100% committed to saving space, protecting our planet and turning connectivity into actionable intelligence.

As a Constellation Modeling and Simulations Architect, you will be a critical member of the Autonomous Flight Systems and Simulations Team building highly accurate models of the spacecraft and space environments. You will enjoy large complex problems with multi‑agent contributions to determine specific and probabilistic results. Your background will include either a first principles understanding of spacecraft guidance navigation and control mechanisms and forces, or radio frequency engineering and modeling.

As the technical authority for constellation design, you will:

• Lead the development and maintenance of the overall constellation architecture and design baseline.
• Define and freeze constellation geometry to support downstream spacecraft procurement and program execution.
• Develop and validate end‑to‑end link budgets across both Mobile Satellite Services (MSS) and Fixed Satellite Services (FSS), considering environmental effects including rain fade and Doppler.
• Perform coverage analysis and network performance simulations to optimize service availability and capacity.
• Conduct interference and compatibility studies, including Equivalent Power Flux Density (EPFD) modelling to support regulatory compliance.
• Produce technical documentation supporting regulatory filings, constellation deployment planning and launch strategy.
• Develop long‑term capacity modelling and network growth strategies.
• Collaborate with systems engineering, payload, RF, regulatory and commercial teams to optimize overall network performance.
• Provide technical leadership for constellation design activities throughout the program lifecycle.

Qualifications and Requirements:

• 5+ years’ experience in LEO and/or MEO satellite constellation design.
• Extensive hands‑on experience using tools such as STK, GMAT, FreeFlyer or equivalent orbital analysis and simulation software.
• Proven experience developing and closing satellite communications link budgets across MSS and/or FSS systems.
• Strong understanding of orbital mechanics, constellation optimization and satellite network performance modelling.
• Direct experience supporting ITU coordination activities, including EPFD analysis and interference studies.
• Experience producing technical documentation supporting satellite system design and regulatory submissions.
• Ability to communicate complex technical concepts to multidisciplinary engineering teams and senior stakeholders.
• Postgraduate qualifications in Aerospace Engineering, Electrical Engineering, Applied Physics or a related technical discipline.
• Experience working on Non‑Terrestrial Networks (NTN) or next‑generation satellite communications systems.
• Technical publications or recognized expertise in orbital mechanics, interference analysis or satellite communications.
• Experience supporting large‑scale commercial satellite constellation programs.

Why E‑Space is right for you:

We want you to make the most of your journey at E‑Space. That’s why we support and invest in the physical, emotional and financial well‑being of our team members and their families. Some of what you can expect when working at E‑Space:

• An opportunity to really make a difference
• Sustainability at our core
• Fair and honest workplace
• Innovative thinking is encouraged
• Competitive salaries
• Continuous learning and development
• Health and wellness care options
• Financial solutions for the future