Chief Constellation Architect & Simulation Lead

Holt Executive Ltd; United States; On-site; USD 180,000 - 280,000; Full time

Job summary

Holt Executive Ltd. seeks an experienced Head of Constellation Design & Simulation to lead architecture, performance modelling and regulatory planning for a next‑gen LEO satellite constellation.

You will act as the technical authority for constellation geometry, link budgets and network performance, guiding procurement, deployment and compliance work across multidisciplinary teams. The role requires 12+ years in LEO/MEO constellation design, hands‑on experience with STK/GMAT/FreeFlyer, and a

Qualifications

• 12+ years in LEO/MEO constellation design.
• Experience with link budgets across MSS/FSS.
• Experience supporting ITU coordination and EPFD analysis.

Responsibilities

• Lead the development and maintenance of overall constellation architecture and design baseline.
• Define and freeze constellation geometry to support spacecraft procurement and programme execution.
• Develop and validate end-to-end link budgets across MSS/FSS, considering environmental effects.
• Perform coverage analysis and network performance simulations to optimise service availability and capacity.
• Conduct interference studies including EPFD modelling for regulatory compliance.
• Produce technical documentation for regulatory filings and deployment planning.
• Develop long-term capacity modelling and network growth strategies.
• Collaborate with systems engineering, payload, RF, regulatory and commercial teams to optimise network performance.

Skills

Constellation design

Link budgets

Orbital mechanics

Simulation software

ITU coordination

Regulatory submissions

Stakeholder communication

Education

Postgraduate aerospace/electrical/applied physics

Tools

STK

GMAT

FreeFlyer

Job description

Holt Executive Ltd. seeks an experienced Head of Constellation Design & Simulation to lead architecture, performance modelling and regulatory planning for a next‑gen LEO satellite constellation.

You will act as the technical authority for constellation geometry, link budgets and network performance, guiding procurement, deployment and compliance work across multidisciplinary teams. The role requires 12+ years in LEO/MEO constellation design, hands‑on experience with STK/GMAT/FreeFlyer, and a