GATE is a joint initiative between Sofia University “St. Kliment Ohridski”, Chalmers University of Technology, Sweden and Chalmers Industrial Technology, 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 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.

We use artificial intelligence for a better and safer life.

The City Living Lab is designed to be an intelligent lab, digitally enabled to ease data collection, flow and storage of data for learning, research, interaction, collaboration and communication

Key Responsibilities

• Guiding, mentoring and managing the Lab;
• Planning and deployment of tools and techniques at the lab;
• Optimizing the connectivity network for control and management of devices and integration middleware;
• Managing inventory and procurement;
• Analyzing different communication protocols and networks;
• Setting up data collection, storage, and processing of integration middleware;
• Interface with GATE stakeholders;
• Report generation and data visualization;
• Define and list all the needed materials and resources;
• Engage in appropriate training and development opportunities.

Skills, Experience, and Qualifications

• A master’s degree in one of the following fields: ommunications, computer engineering, civil engineering or in a related discipline;
• A minimum 5 years experience;
• Familiarity with sensor technologies and performance metrics;
• Ability to manage stakeholders both internal and external, including vendors and partners;
• Ability to lead teams and ability to work collaboratively with multi-disciplinary teams;
• Knowledge and experience with IoT technologies and protocols (Bluetooth, Zigbee, Z-Wave, Sigfox, Lora, others);
• Good programming skills (e.g., C/C++, Java, Python);
• Ability to communicate complex technical issues in an appropriate, concise and accurate fashion visually and in writing;
• Ability to prioritize tasks and work on multiple assignments, and a deep desire to find ways to create value and deliver results.
• Fluent English is a must.

What we offer

• You will join and collaborate with a team in a friendly and balanced work environment.
• You will have the opportunity to participate in the entire lifecycle of innovative and dynamic projects.
• You will be part of a dynamic and inspiring research environment that encourages interdisciplinary collaboration and innovation.
• You will participate in international partnerships and networks that will expand your contacts and career prospects.
• You will be able to take advantage of numerous opportunities for training, knowledge exchange, and professional development at the national and international levels;
• In your work, you will be supported by modern infrastructure, including the GATE platform and open innovation labs;
• You will have a flexible work schedule in the newly constructed GATE building—a modern and attractive work environment that stimulates creativity and productivity;
• You will be offered competitive working conditions and compensation commensurate with your skills and experience.

How to apply

• Application documents may be submitted in the following ways by July 30, 2026:

1. On paper – in person by the applicant, through their representative, or by mail to the GATE Institute’s administrative office;
2. Filling out an application form – Application Form – Gate (gate-ai.eu);
3. By email – ;

• Cover/motivation letter that explains the motivating factors for considering the position (max. 2 pp),
• CV,
• List of publications,
• Copies of diplomas for completed education and certificates of qualification,
• Two references letters or personal recommendations, arranged by applicants and directly submitted by the letter or provided as contact data in the cover letter

Stages of the contest:

1.The Selection Committee reviews the documents, submitted by the candidates and selects those meeting the requirements of the job, as described in the job profile. The selected candidates will be informed by July 30, 2026.

2.Online interviews will be held with the selected applicants until July 31, 2026.

3.All interviewed candidates will be notified in writing.

4.The successful candidate will be offered a labour contract.

 

Additional information on the site www.gate-ai.eu or contact us on: 

By applying for these positions, you voluntarily provide your personal data and consent to be processed for the purpose of recruitment and selection of personnel. The processing of your personal data shall be carried out in accordance with the requirements of Regulation (EU) 2016/679 (General Data Protection Regulation), the Personal Data Protection Law and related legal acts in Bulgaria.

This position is suitable for an experienced architect/programmer with in-depth knowledge of distributed systems, cloud infrastructure, and data management.

We are looking for a motivated and highly qualified software developer/architect who thinks innovatively, takes initiative, and is ready to take a leading role in the development of the Data Space platform. The position is suitable for a specialist with 10+ years of experience, deep technical expertise, and a desire to work on innovative and challenging projects.

Key Responsibilities

• Participate in software development and maintenance, including: designing, programming, testing, documenting, and implementing software and architectural solutions.
• Identify technical issues and provide effective solutions.
• Ensuring the quality and security of the developed software solutions.
• Monitoring industry trends and applying modern technologies or approaches.
• Analyzing potential improvements in software solutions during development or after its completion.
• Participating in meetings to clarify requirements.
• Assigning tasks and ensuring that deadlines are met.
• Reporting on project progress in a timely manner and notifying stakeholders of any changes in project execution.
• Providing documentation and training on the technologies and systems used.
• Participating in the implementation of new technological solutions at the Institute.
• Preparing operational reports and status updates on the status, issues, and development opportunities for software owned by the Institute.

Skills, Experience, and Qualifications

• A bachelor’s degree in one of the following fields: engineering, computer science, mathematics, information technology, or telecommunications and computer engineering;
• Proven experience (10+ years) in the development and implementation of complex software systems based on Angular, Spring Boot, and cloud-based architectures
• In-depth knowledge of Angular (TypeScript) for developing modern, scalable frontend applications
• Excellent command of Spring Boot / Spring Framework (Spring Security, Spring Data, Spring Cloud)
• Proven experience with cloud infrastructure: Kubernetes, Docker
• Experience with designing and implementing REST APIs and distributed systems
• Knowledge in the areas of Data Governance, metadata management, and privacy policies
• Leadership skills and ability to mentor technical teams
• Willingness to learn a wide range of technologies, including through additional training
• Very good command of the English language

 

The following may be considered an advantage:

• Experience with Eclipse Dataspace Components (EDC)
• Experience with Identity and Access Management (IAM/SSO)

What we offer

• You will join and collaborate with a team in a friendly and balanced work environment.
• You will have the opportunity to participate in the entire lifecycle of innovative and dynamic projects in the field of Data Space platforms.
• You will be part of a dynamic and inspiring research environment that encourages interdisciplinary collaboration and innovation.
• You will participate in international partnerships and networks that will expand your contacts and career prospects.
• You will be able to take advantage of numerous opportunities for training, knowledge exchange, and professional development at the national and international levels;
• In your work, you will be supported by modern infrastructure, including the GATE platform and open innovation labs;
• You will have a flexible work schedule in the newly constructed GATE building—a modern and attractive work environment that stimulates creativity and productivity;
• You will be offered competitive working conditions and compensation commensurate with your skills and experience.

How to apply

• Application documents may be submitted in the following ways by July 30, 2026:

1. On paper – in person by the applicant, through their representative, or by mail to the GATE Institute’s administrative office;
2. Filling out an application form – Application Form – Gate (gate-ai.eu);
3. By email – ;

• Cover/motivation letter that explains the motivating factors for considering the position (max. 2 pp),
• CV,
• List of publications,
• Copies of diplomas for completed education and certificates of qualification,
• Two references letters or personal recommendations, arranged by applicants and directly submitted by the letter or provided as contact data in the cover letter
• As an attachment to your application please sign 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.

Stages of the contest:

1.The Selection Committee reviews the documents, submitted by the candidates and selects those meeting the requirements of the job, as described in the job profile. The selected candidates will be informed by July 30, 2026.

2.Online interviews will be held with the selected applicants until July 31, 2026.

3.All interviewed candidates will be notified in writing.

4.The successful candidate will be offered a labour contract.

 

Additional information on the site www.gate-ai.eu or contact us on: 

By applying for these positions, you voluntarily provide your personal data and consent to be processed for the purpose of recruitment and selection of personnel. The processing of your personal data shall be carried out in accordance with the requirements of Regulation (EU) 2016/679 (General Data Protection Regulation), the Personal Data Protection Law and related legal acts in Bulgaria.

GATE develops research capacity and potential in 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.

We use artificial intelligence for a better and safer life.

Researchers (R1,R2,R3)

Data Science

 

Responsibilities

• Researches and analyses the landscape of innovative approaches that could significantly contribute to the scientific goals of GATE in the field of advanced data analytics, applied to the four application domains at GATE: Digital Health, Future Cities, Intelligent Government and Smart Industry;
• Adapts current machine learning research to high consequence real world applications and integrate solutions into practical tool chains;
• Pursues independent (but complementary) research interests and interact with a broad spectrum of scientists internal and external to the Institute;
• Presents formal and informal overviews of research progress to peers, sponsors, and stakeholders;
• Conduct self-initiated research, maintain an awareness of technical literature in assigned areas, publish research results in peer-reviewed scientific or technical journals, and present results at external conferences, seminars, and/or technical meetings;
• Contributes to high-quality scientific publications;
• Prepares presentations to communicate research results at national and international scientific conferences and industry events;
• Participates in the implementation of existing and the design of novel Machine Learning (ML) and Artificial Intelligence (AI) models in the context of GATE projects;
• Performs individual and collaborative research in the area of ML and AI;
• Participates in the development of strong relationships with external key stakeholders;
• Engages in continuous professional development and participates in various events for learning and knowledge exchange;

Our requirements

• Junior researcher (R1): А minimum of bachelor’s or master’s degree in Computer Science, Statistics, Mathematics, or a related field;
• Experienced researcher (R2): Ph.D. in Computer Science, Statistics, Mathematics, or a related field, or a master’s degree plus a minimum of 7 years of experience in research within the industry;;
• Established researcher(R3): Ph.D. in Computer Science, Statistics, Mathematics, or a related field, or a master’s degree plus a minimum of 7 years of experience in research within the industry;
• Experience in one or more of the following: machine learning, deep learning, artificial intelligence, scientific machine learning, image analysis, uncertainty quantification, verification and validation (V&V), computational statistics;
• Programming skills in Python using at least several of the standard Data Science tools and libraries: PyTorch, TensorFlow, Keras, NumPy, SciPy, Pandas or others;
• Interest in participating in research projects, involving a wide variety of stakeholders;
• Good written and oral communication and presentation skills, prioritizing of tasks, motivation to discover new approaches in AI development;
• Fluency in English;

Our offer

• You will have the freedom to conduct research in any area within the scope and priorities of GATE, creating new visions for the future
• R2, R3 – You will experience leading and mentoring small research team with staff scientists and graduate students from diverse technical backgrounds, as well as an ability to function as an independent researcher;
• You will be provided with numerous opportunities for learning, knowledge exchange and career development, locally and internationally
• Your research will be supported by an advanced research infrastructure, comprising the GATE platform and Open Innovation Labs
• You will have a flexible work schedule and a modern and appealing work environment, stirring up creativity and productivity;
• Competitive working conditions and a salary commensurate with your skills and experience.

 

How to apply

Please send your contact data and files with personal documents on our Application Form – Gate (gate-ai.eu)  until August 31, 2026:

• Cover/motivation letter that explains the motivating factors for considering the position (max. 2 pp)
• CV
• Copies of diplomas for completed education and certificates of qualification
• Copies of documents certifying past work experience in the relevant field
• Two references letters or personal recommendations, arranged by applicants and directly submitted by the letter or provided as contact data in the cover letter
• As an attachment to your application, please sign 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.

Additional information on the site www.gate-ai.eu or contact us on: 

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 Audust 31, 2026
• An interview with the successful candidates will take place until September 10, 2026.
• All interviewed candidates will be informed of the outcome of the competition.
• The selected candidates will be hired on a labor contract.

GATE is a joint initiative between Sofia University “St. Kliment Ohridski”, Chalmers University of Technology, Sweden and Chalmers Industrial Technology, 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 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.

We use artificial intelligence for a better and safer life.

For our team we are looking for young at heart, motivated for high results and open to the unlimited possibilities of the future.

Responsibilities

• Conduct applied research in deep learning methods across multiple domains.
• Develop, implement, and evaluate state-of-the-art neural network models.
• Write and publish research papers in top-tier ML/AI conferences and journals.
• Collaborate with domain experts to apply ML solutions to real-world problems.
• Design and execute experiments, including dataset preparation, model training, and evaluation.
• Build and maintain automated ML pipelines;
• Scientific paper writing;
• Keep up-to-date with the latest technology trends;
• Engage in appropriate training and development opportunities.

 

Skills, Experience and Qualifications

Essential

• Junior researcher: А minimum of bachelor’s or master’s degree in in computer science, applied mathematics, engineering, or in a related discipline;
• Experienced researcher: A PhD Degree in computer science, geoinformatics/geomatics, engineering, or in a related discipline or a Master’s Degree plus a minimum of 4 years industry-based relevant research experience;
• Proficiency in Python with a good grasp of PyTorch or other deep learning frameworks.
• Strong understanding of neural networks and deep learning architectures (Transformers, LLMs, RNNs, Graph Neural Networks, Computer Vision etc.)
• Experience in ML model development, including algorithm selection, fdata preparation, feature engineering, model training, hyperparameter tuning.
• Solid knowledge of statistics, probability, and mathematical foundations of ML.
• Self-motivated, independent, and passionate about applied research.
• Strong ability to analyze and solve real-world problems using ML techniques.
• Willingness to collaborate in an interdisciplinary environment.
• Fluency in English.

 

Why join us as 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 join and collaborate with a team of researchers, but will have the freedom to conduct research in any area within the scope and priorities of GATE, creating new visions for the future;
• Your research will be supported by an advanced research infrastructure, comprising the GATE platform and Open Innovation Labs;
• 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.

 

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 via https://www.gate-ai.eu/en/application-form/ until 31 July 2026:

• Cover letter that explains the motivating factors for considering the position (1-2 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.

Additional information on the site www.gate-ai.eu or contact us on: 

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 31 July 2026.
• An interview with the successful candidates will take place until 11 August 2026.
• All interviewed candidates will be informed of the outcome of the competition.
• The selected candidates will be hired on a labour contract.

Data spaces are a highly innovative area that is gaining increasing popularity at both the European and regional levels as a key element of the future data-driven economy. Data spaces provide an environment that facilitates secure and trusted data exchange between participants and offer a comprehensive framework encompassing the technological, business, and organizational aspects of this exchange. The researchers will be involved in an international project in collaboration with two of the most prestigious research institutes in Europe: Norway’s SINTEF Institute and Ireland’s INSIGHT Institute. The project’s aim is to build a knowledge transfer framework between the partners and develop a visionary scientific strategy to enhance research capacity in the field of data space interoperability. The project’s outcomes will be applied to drive innovations in areas of significant social and economic importance.

Applicants for this position should have experience in the field of information technology, and knowledge and skills in semantic technologies and data sharing.

Key Responsibilities

• Conducts high-quality applied research in the field of semantic interoperability for data spaces;
• Develops techniques and models for data interoperability;
• Applies research results to innovative solutions;
• Prepares presentations to promote research outcomes at national and international levels;
• Prepares high-impact scientific publications.

Skills, Experience and Qualifications

• Junior researcher: А minimum of bachelor’s or master’s degree in computer science, applied mathematics, software engineering, or a related technical field;
• Experienced researcher: A PhD Degree in in computer science, applied mathematics, software engineering, or a related technical field or a Master’s Degree plus a minimum of 4 years industry-based relevant research experience;
• Experience in the field of semantic technologies;
• Knowledge of the principles, tools, and technologies for data sharing;
• Ability to collaborate and work in teams with international partners;
• Motivation for professional development and a passion for research work;
• Strong oral and written communication skills, including the ability to present research results (and their value);
• Fluency in English.

Our offer

• You will join and collaborate with a team of researchers but will have the freedom to conduct research in any area within the scope and priorities of GATE, creating new visions for the future
• You will be provided with numerous opportunities for learning, knowledge exchange and career development, locally and internationally
• Your research will be supported by an advanced research infrastructure, comprising of the GATE platform and Open Innovation Labs
• You will have a flexible work schedule and, modern and appealing work environment, stirring up creativity and productivity;
• Competitive working conditions and a salary commensurate with your skills and experience
• Multisport card;
• A pleasant and diverse environment with fun team buildings and stimulating activities;

 

How to apply:

Please send your contact data and files with personal documents on our Application Form – Gate (gate-ai.eu)  till 9 July 2026:

• Cover/motivation letter that explains the motivating factors for considering the position (max. 2 pp),
• CV,
• Copies of diplomas for completed education and certificates of qualification,
• Two references letters or personal recommendations, arranged by applicants and directly submitted by the letter or provided as contact data in the cover letter
• As an attachment to your application please sign 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.

Stages of the contest:

1.The Selection Committee reviews the documents, submitted by the candidates and selects those meeting the requirements of the job, as described in the job profile. The selected candidates will be informed by 9 July 2026.

2.Interviews will be held with the selected applicants until 10 July 2026.

3.All interviewed candidates will be notified in writing.

4.The successful candidate will be offered a labor contract.

 

Additional information on the site www.gate-ai.eu or contact us on: 

By applying for these positions, you voluntarily provide your personal data and consent to be processed for the purpose of recruitment and selection of personnel. The processing of your personal data shall be carried out in accordance with the requirements of Regulation (EU) 2016/679 (General Data Protection Regulation), the Personal Data Protection Law and related legal acts in Bulgaria.