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Astroscale

Simulation Software Engineer

Hybrid

Didcot, United kingdom

Junior

Full Time

24-11-2025

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Skills

JavaScript Test Linux System Administration Programming Shell Software Development Agile Recruitment C++

Job Specifications

Astroscale UK is looking for a Simulation engineer to join our SATSIM team in Harwell, UK, to help realise our vision for the safe and sustainable development of space for the benefit of future generations.

This role will focus on collaborating with the simulation team, defining solutions based on requirements, working with other subsystem teams on simulation needs. Responsibilities will also involve integrating the flight software into the simulator environment.

Responsibilities 



Design, implement and test spacecraft simulators as part of a team of software and aerospace engineers
Develop and integrate spacecraft simulation software based on client’s requirements
Validate, configure, and deploy simulation software in Astroscale’s environments
Develop scripts based on the client’s operational scenarios
Perform maintenance activities on simulators to ensure highest availability to users
Write start-up scripts to configure the simulators as required for the different operational configurations 

Essential Skills



University degree in Computer Science, Electronics, or other STEM discipline
Minimum 2+ years of industry experience in software engineering, real-time software development, preferably using modelling and simulation technologies
Experience in debugging, profiling on Linux
Sound knowledge of modern C++ (C++14)
Object oriented programming using UML, design patterns
Experience with test driven development
Fluency in spoken and written English

Desirable skills



Experience with ECSS SMP and SIMULUS Suite (ESA) and/or other spacecraft simulation frameworks
Experience with Agile software development, tools and methods
Experience with ECSS-E-70 (PUS), SCOS MIB
Linux system administration, shell scripts, make, etc.
Scripting with JavaScript

Benefits

Competitive base salary
Opportunity to work with a highly talented, diverse & dynamic international team with cutting edge technology
Flexible working around core hours in a friendly and supportive environment
Optional 9/75 working pattern
Hybrid working available (dependent on individual role requirements)
25 days holiday (increasing yearly up to a maximum of 28 days) + 8 days Bank Holiday
Life insurance and long-term sick pay
Private healthcare (taxable benefit)
Relocation allowance
Visa sponsorship for employees considered
State of the art office and cleanroom facility
Regular social events 

Location

Astroscale UK (Harwell).

About Astroscale

Founded in 2013, Astroscale is the global leader in on-orbit servicing, dedicated to the secure and sustainable development of space for the benefit of future generations. We provide trusted and value-added solutions for government and commercial clients from their geography of choice, to drive the long-term, circular space economy. Astroscale is also collaborating with government and commercial stakeholders to develop norms, regulations, and incentives that promote the sustainable growth of space.

Since our first successful launch in March 2021, Astroscale has proven rendezvous and proximity operations technologies in orbit during the ELSA-d and ADRAS-J missions, establishing the company as a leader in on-orbit servicing. Astroscale spacecraft have been selected for pioneering missions with JAXA, the U.S. Space Force, the European Space Agency, the UK Space Agency, and Eutelsat OneWeb. As more satellite operators adopt on-orbit servicing to routinely inspect, service and remove, the potential of a circular space economy — and a future of no waste in space — is being unlocked.

At Astroscale we pride ourselves on our inclusive culture. Our essential criteria are based solely on the requirements necessary to perform the role. If any criteria could present a barrier, we are open to discussing reasonable adjustments and are committed to ensuring an inclusive recruitment process. Astroscale is also open to supporting job share arrangements, to further our flexible working offering.

Note to recruitment agencies: Astroscale operates a preferred Supplier List, and we do not accept unsolicited agency approaches. Please do not forward candidate CVs or details in response to this advert, or to any Astroscale employee.

About the Company

Founded in 2013, Astroscale is the global leader in on-orbit servicing, dedicated to the safe and sustainable development of space. The company delivers a variety of innovative and scalable on-orbit servicing solutions, including life extension, in-situ space situational awareness, end-of-life, and active debris removal. These solutions empower satellite operators to reduce risks, increase returns, and achieve mission success while fostering a sustainable space environment. Astroscale is also defining the economics of on-or... Know more