Senior Theoretical Physicist - Space Research Technology

Inautalent seeks a Senior Theoretical Physicist in Martigny, CH, to contribute to the International Space Federation’s fundamental physics research. The role involves developing theoretical frameworks, writing scientific papers, and collaborating with physicists and engineers on advanced topics in spacetime, quantum vacuum, and gravitation.

This position supports the International Space Federation’s (ISF) core theoretical physics research by producing peer-reviewed papers, technical reports, and scientific expositions. It is a research and writing-focused role, not communications or outreach, and involves close collaboration with senior scientists and a small interdisciplinary team.

Responsibilities

• Study and understand ISF’s theoretical physics programme, including spacetime geometry, quantum vacuum, gravitation, and field dynamics.
• Help develop theoretical arguments, derivations, models, and connections between ISF’s framework and established physics.
• Identify inconsistencies, assumptions, or opportunities for extension in existing materials and work with senior physicists to address them.
• Review relevant literature in quantum mechanics, general relativity, quantum field theory, and related fields to situate ISF’s work accurately.
• Draft, revise, and improve theoretical physics papers, technical reports, and internal research documents.
• Translate complex theoretical concepts into clear, structured, and mathematically rigorous scientific writing.
• Collaborate on manuscript sections with physicists and engineers, ensuring clarity in claims, notation, and references.
• Prepare materials for peer review, conferences, grant applications, and internal coordination.
• Work iteratively with the Principal Theoretical Physicist and Chief Scientist on research direction and argument structure.
• Support experimental and applied teams by clarifying theoretical implications, predictions, and interpretive frameworks.
• Incorporate feedback from internal and external reviewers into drafts while preserving scientific precision.
• Maintain well-organized theoretical documentation to support a shared scientific foundation for the team.

Requirements

• PhD in physics, theoretical physics, mathematical physics, or a closely related field.
• Strong knowledge of quantum mechanics and general relativity, including the required mathematical tools.
• Proven ability to write advanced scientific content clearly, precisely, and accurately.
• Ability to quickly learn and critically evaluate unfamiliar theoretical frameworks.
• Capacity to produce high-quality written work independently with attention to detail.
• Fluency in English for scientific writing and discussion.

Nice to have

• MSc in physics, theoretical physics, mathematical physics, or a related field.
• Research experience in theoretical physics, quantum gravity, quantum field theory, gravitation, vacuum energy, or spacetime geometry.
• Experience writing, co-writing, or editing peer-reviewed papers, preprints, technical reports, or similar scientific materials.
• Familiarity with foundational approaches to spacetime, vacuum structure, gravitation, or the interface between quantum mechanics and general relativity.
• Comfort using LaTeX and scientific typesetting workflows.

What the company offers

• An opportunity to work on a live theoretical physics programme exploring the relationship between spacetime, quantum vacuum dynamics, matter, and energy.
• Close collaboration with a small team of physicists, engineers, and scientific leaders, with direct engagement in core theoretical questions.
• Intellectual freedom in a privately funded research environment, balanced with rigorous scientific standards and accountability.
• A focused role dedicated to developing and formalizing physics, not marketing or outreach.
• A research environment in Martigny, Valais, integrating fundamental theory with applied experimental work.
• Swiss employment benefits including BVG/LPP pension enrolment and support with Swiss work-permit processes where applicable.
• Competitive salary ranging from 90,000 to 110,000 CHF per year.

About the company

Inautalent supports the International Space Federation (ISF), a pioneering R&D organization based in Cluses, French Alps, in expanding its research presence in Switzerland. ISF focuses on gravity-control propulsion and quantum-vacuum energy, aiming for sustainable energy solutions. Through academic partnerships, it explores the intersection of relativity and quantum mechanics to develop transformative technologies.

• Research focused on gravity-control propulsion and quantum-vacuum energy for sustainable solutions.
• Collaboration with international academic partners to advance fundamental physics.
• Work at the intersection of relativity and quantum mechanics to redefine scientific understanding.
• Mission-driven: turning bold scientific concepts into real-world technologies.