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About this role:

AAC Clyde Space is seeking a Senior Mechanical Engineer (Thermal) to join our growing team and take technical ownership of the thermal design, modelling and analysis of our satellite platforms and subsystems.

In this role, you will be responsible for developing and validating thermal control systems across the full mission lifecycle — from concept and design through to testing and in-orbit performance. You will use tools such as ANSYS, ESATAN, and SolidWorks to perform detailed thermal analyses, review critical design work, and oversee the build, integration, and test project phases.

This is a hands-on role that combines detailed thermal analysis with mechanical and project engineering responsibilities. You will collaborate closely with systems, electronics, AIT and project teams to ensure robust and flight-ready solutions.

We are open to hybrid working for this role. Please note that in future, you may be required to complete a Basic Disclosure check (https://www.mygov.scot/apply-for-level-1-disclosure)

Key Responsibilities:

• Lead thermal–mechanical design and analysis activities across multiple CubeSat and small satellite programmes.
• Lead spacecraft thermal control design, including passive and active systems (radiators, coatings, heaters, insulation, and thermal straps).
• Conduct detailed thermal and structural analyses (steady-state, transient, and coupled thermal–mechanical FEA) using tools such as ESATAN and ANSYS Mechanical.
• Define and support environmental testing (thermal cycling, thermal balance) to qualify designs for flight.
• Ensure compliance with relevant standards (ECSS, internal or NASA where applicable).
• Optimise designs for mass, stiffness, manufacturability, and thermal performance.
• Provide technical leadership, mentoring, and support to mechanical and thermal engineers.
• Manage project deliverables, documentation, and design reviews to meet mission and launch requirements.
• Liaise with customers, suppliers, and partners to ensure compliance with specifications and standards.
• Contribute to process and design improvements, helping to define internal best practices and internal standards.
• Support programme management by providing technical input, estimates, and risk assessments

Skills required:

• Relevant degree or equivalent work experience
• Demonstrated experience delivering structural and mechanical systems through full design life cycles.
• Proven experience in thermal or structural design within high-reliability or safety-critical industries (e.g. aerospace, automotive, energy, or defence)
• Proficiency in CAD and analysis tools such as SolidWorks, ANSYS (or equivalent).
• Experience with materials and manufacturing processes, including metals, composites, and polymers.
• Strong understanding of mechanical and thermal engineering principles.
• Excellent communication and interpersonal abilities — capable of bridging technical and programmatic discussions.
• High attention to detail, with consistent and disciplined documentation practices.
• Take ownership of complex challenges and driving them to resolution with integrity and professionalism.
• Maintain accountability for your work while contributing to a supportive and inclusive team culture.
• Demonstrates sound judgement and resilience in dynamic, time-constrained environments.
• Excellent organisation and prioritisation; comfortable with multiple concurrent workstreams/multiple projects to deliver high-quality engineering outputs – in a dynamic environment with tight deadlines.
• Competent IT skills including Microsoft software.
• Proficient in English, both verbally and written

Skills desired:

• Space industry experience advantageous but not essential – experience in other high-performance industries welcome.
• Experience with spacecraft thermal systems, including radiators, MLI, heaters, and thermal straps.
• Knowledge of thermal analysis tools such as ESATAN-TMS or Thermal Desktop.
• Familiarity with space-grade materials, outgassing behaviour, and environmental effects.
• Experience with environmental testing (TVAC, Vibration).
• Understanding of ECSS or NASA engineering standards.
• Background in CubeSat, small satellite, or other space systems design and verification.
• Experience leading design reviews and supporting flight hardware qualification.
• Previous experience of working with small/medium sized company

ABOUT AAC CLYDE SPACE

AAC Clyde Space, a leading New Space company, specialises in small satellite technologies and services that enable businesses, governments, and educational organisations to access high-quality, timely data from space. This data has a vast range of applications, from weather forecasting to precision farming to environmental monitoring, and is essential to improving our quality of life on Earth.

Our growing capabilities bring together three divisions:

• Space Data as a Service – delivering data from space directly to customers
• Space missions – turnkey solutions that empower customers to streamline their space missions
• Space products and components – a full range of off-the-shelf and tailor-made subsystems, components, and sensors

AAC Clyde Space aims to become a world leader in commercial small satellites and services from space, applying advances in its technology to tackle global challenges and improve our life on Earth.

Some of our clients include Horizon Technologies, Orbcomm, OHB Sweden, Intuitive Machines, Orbital Micro Systems, the United States Airforce Academy, UK Space Agency, European Space Agency and NASA.

AAC Clyde Space Group consists of the parent company AAC Clyde Space AB (publ) and subsidiaries in Sweden, the UK, the Netherlands, South Africa and the USA. Our main operations are in these five countries, with partner networks in Japan and South Korea.

AAC Clyde Space’s share is traded on the Nasdaq First North Premier Growth Market.

Data Protection Policy

As part of our recruitment process, we collect and process personal data relating to job applicants. We are committed to being transparent about how we collect and use this data, please click here to see our job applicant privacy notice.

Right to Work

AAC Clyde Space has a legal responsibility to ensure that all its employees have the legal right to live and work in the EU or the country in which they plan to work. Therefore, if you are made an offer of employment, this will be subject to AAC Clyde Space verifying that you are eligible to work in that country before you start work.

Equality, Diversity and Inclusion

We aim to create a positive recruitment and selection experience across every part of our business. The company is committed to handling applications to a consistently high standard and all candidates with dignity and respect. Those involved in the recruitment and selection process will act with integrity, objectivity and professionalism. We are committed to equal opportunities for all and to have diversity reflected within our global workforce. We believe its diversity and inclusion will allow for greater creativity and innovation to help AAC Clyde Space Group deliver the vision to help improve life on earth.

Openness to Flexible Working

We recognise work-life balance is important so we are open to discussions around flexible working, depending on the nature of the role and business needs. If you would like to know more, please ask the Hiring Manager during any recruitment process that you may be involved in.