PostDoc/Junior Researcher Multiphysics modelling

Deadline for submission: 30 June 2025

GATE is a joint initiative between Sofia University “St. Kliment Ohridski”, Chalmers University of Technology, Sweden and Chalmers Industriteknik, Sweden. The Swedish institutions are leading organizations in strategic initiatives such as AI Sweden, AI Research Centre, AI Innovation of Sweden and the Digital Twin Cities Centre.

GATE develops research capacity and potential in the fields of digitisation, big data and artificial intelligence, cultivating the next generation of leading scientists by expanding the existing research network and establishing long-term agreements with leading global organizations. The Institute builds sustainable stakeholder relationships, focusing on technological collaboration between government, industry, academia and non-governmental organizations towards artificial intelligence and smart decision-making models.

As the logical next step towards achieving its ambitious goals, GATE opened its new “Digital Twin Laboratory”, which is dedicated to the creation and advancement of complete digital twins and their components. The digital twin is much more that a numerical model or a three-dimensional geometry – it is a reliable, virtual replica of a physical asset or a system, a focal point for physics-based models, heterogeneous data streams, statistical emulation, and uncertainty quantification. Digital twins allow the effect of design changes, maintenance and repair operations, what-if scenarios and rare events to be investigated in-silico, without considerable financial investments and time expenditure.

To support the development of the Laboratory we are looking for a: PostDoc/Junior Researcher Multiphysics modelling

Your responsibilities

• Conducting applied research in the fields of reliable computational fluid dynamics and computational solid mechanics modelling and usage.
• Supporting the research and development of physics-based machine learning methods for digital twin creation;
• Development and testing of multiphysics coupling interfaces and reduced-order models for digital twin creation;
• Setting up, governing and testing open-source multiphysics modelling environments in support of expanding the capabilities of the Digital Twin Laboratory;
• Creating research-grade software implementations of the developed methodologies;
• Supporting programmers and developers during knowledge transfer campaigns between the Digital Twin Laboratory and its industrial partners.
• Participating in workshops and training courses relevant to the research filed to increase qualification.

Our requirements

• Higher education (bachelor or master) degree in the technical, engineering or computer sciences, mathematics, physics or a related field;
• Knowledge of the main principles of mathematical modelling (experience with different tools for multiphysics modelling are advantageous);
• Basic knowledge of the principles of data analysis and statistical modelling;
• Practical programming skills, preferably in Python (or R, Julia, etc.). Practical skills with compiled languages, such as C, C++, etc. will be advantageous;
• Responsibility towards the assigned tasks, suitable level of independence, excellent communication skills, ability to work in a team;
• Curiosity, passion for discovery, discretion, responsibility, accuracy, loyalty;
• Excellent command of written and spoken English.

Why join us as a Researcher?

• You will be able to conduct industrially-relevant, applied research without the stress of the industrial environment;
• You will constantly develop your knowledge and skills as a natural consequence of your daily research responsibilities;
• You will have the opportunity to collaborate with renowned researchers from across the world in all domains of the Laboratory – machine learning, computational engineering, physics, applied mathematics, statistics and many others;
• You will work in a close collaboration with a scientific advisor who will make sure you develop and utilise your potential to the fullest and guides you on your career progression journey;
• You will be able to participate in cross-cutting research with other research groups at the Institute;
• You will be able to disseminate your achievements through publications in world-class scientific journals and participation in international conferences;
• You will be able to benefit from numerous training, knowledge exchange and professional development opportunities at national and international level;
• You will have access to assistance with relocation, if required (international applicants welcome);

Why join our team as an Employee?

• You will work in a modern and attractive environment that stimulates creativity and productivity;
• You will be offered competitive working conditions and remuneration commensurate with your skills and experience.
• You will be part of a supportive, driven, and genuinely fun team that values collaboration and celebrates success together;
• You will be able to participate in regular team-building events – From off-site retreats to escape rooms and quiz “nights”, we know how to mix work with play;
• You will be able to access training, mentorship, and funding for courses and conferences to keep you growing;
• You will have flexible work options – hybrid work possibilities, flexible hours, and understanding of work-life balance;
• Multisport card.

How to apply

Please send your contact data and files with personal documents until 30 June 2025:

• Cover letter that explains the motivating factors for considering the position (2 pages);
• Curriculum vitae;
• Copies of diplomas for completed education and certificates of qualification;
• Two letters of support from academic tutors, former supervisors, mentors or equivalent, including their contact details provided as appendices in the cover letter or as a separate document;
• As an attachment to your application, please sign, scan and enclose the following declaration: I agree to the processing of my personal data included in this application for the needs necessary to carry out the recruitment.

By applying for these positions, you voluntarily provide your personal data and consent to the processing of such data for recruitment and selection purposes. The processing of your personal data is carried out in accordance with the requirements of Regulation (EU) 2016/679 (General Data Protection Regulation), the Personal Data Protection Act and related regulations in Bulgaria.

Selection stages

• Examination of the documents submitted and admission to the competition of those who satisfy the requirements set out in the notice. The successful candidates will be informed by 30 June 2025.
• An interview with the successful candidates will take place until 11 July 2025.
• All interviewed candidates will be informed of the outcome of the competition.
• The selected candidates will be hired on a labour contract.