Head of System Modelling and Mission Analysis (SMMA)

As the Head of System Modelling and Mission Analysis (SMMA), you will lead our SMMA department, focused on the design, analysis, and performance assessment of our Prime and Proxima launch vehicles.

This role is instrumental in driving end-to-end system simulation and mission-level analysis across our satellite, launch vehicle, and interplanetary mission portfolios. You will lead a multidisciplinary team of systems engineers, simulation architects, and mission analysts to develop models, perform trade studies, and deliver insights that shape the future of space exploration and operations.

About OrbexOrbex is a leading orbital launch services company with our Prime and Proxima launch vehicles being developed to launch payloads for commercial customers. Orbex Prime supports the small satellite industry with launches from Scotland, while Orbex Proxima offers larger payload capacities to a wider range of orbital locations.

We are well financed, with over €149m/£129m secured, and backed by organizations including UKSA and ESA. Our team operates across facilities in Forres, Scotland, and Copenhagen, Denmark. Sustainability is core to our mission, with innovations like bio-propane fuel, reusable stages, and debris-free separation mechanisms.

The Position ResponsibilitiesAs the Head of System Modelling and Mission Analysis, you will:

Oversee the development of integrated physics-based and functional models for launch systems and ground support equipment.

Lead mission analysis activities, including trajectory design, orbital mechanics, and operational constraints, with accountability for Flight Safety Analysis.

Apply system models and mission analysis to support trade studies, design decisions, and optimization of mission parameters.

Establish and maintain advanced modelling toolchains, develop standards, and enforce VandV processes.

Key StakeholdersInterface with internal teams (systems integration, GNC, propulsion, structures, avionics, mission operations) and external partners (customers, mission agencies).

Required Experience

Significant experience in space systems engineering, mission analysis, or aerospace simulation, with leadership roles.

Expertise in trajectory optimization, orbital mechanics, or mission planning.

Proven track record in model development, MBSE, and mission simulation for space platforms.

Preferred Experience

Master’s or PhD in Aerospace Engineering, Astrodynamics, Physics, or related fields.

Deep understanding of space system design and lifecycle.

Knowledge of environmental considerations and involvement in government or commercial space programs.

Key Skills and Competencies

Strong leadership and organizational skills.

Technical expertise in space system modelling and mission analysis tools.

Ability to analyze trade spaces and optimize system performance.

Excellent communication skills for technical and non-technical audiences.

Applying with OrbexOrbex values courage, teamwork, and integrity. We are an inclusive, multicultural team committed to space for humanity’s future. We encourage applications even if you do not meet all listed requirements.

Orbex is an Equal Opportunity Employer committed to diversity in the aerospace industry.

Location – ForresRoles require on-site presence in Scotland at our headquarters in Forres, near Inverness, amidst the scenic Highlands and coast. The location offers outdoor activities and natural beauty, perfect for outdoor enthusiasts.

SecurityYou must be a UK or European citizen or from a country signatory to the MTCR, and may undergo UK BPSS checks.

Benefits – UK

34 days paid holiday including bank/public holidays.

NEST pension, Cycle to Work, EV salary sacrifice schemes.

Employee Assistance Programme, Group Life Insurance.

Relocation support including visa assistance, accommodation, and allowances.

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