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Deadline for submission: 13 February 2024


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.

In connection with the institute's ambitious goals for growth, as well as to work on a major international project of the Horizon Europe programme, we are searching for a young at heart, motivated for excellent performance, and open to the future's limitless possibilities.


Junior Researcher

Data management



  • Designing data schemas to organize data storage in the Hadoop big data system;
  • Administering and maintaining the data stored in the Hadoop system on the GATE platform;
  • Data storage and retrieval in Hadoop;
  • Programming data in the Hadoop distributed file system;
  • Index and optimize queries for storing and retrieving data in Hadoop using tools from the Hadoop ecosystem;
  • Automation of data processing in Hadoop using tools from the Hadoop ecosystem;
  • Technical support for the work of analysts on big data stored in Hadoop.



  • University degree in technical and computer science, mathematics, computer science, communications and computer engineering or related field;
  • Thorough knowledge of distributed computing principles;
  • Professional experience of working in a Linux environment;
  • Professional experience in data modeling and data schema design in database management systems;
  • Professional experience in Java programming (experience in Python programming is an advantage all else being equal);
  • At least one year of experience working with Hadoop (HDFS, Yarn, Mapreduce);
  • Excellent knowledge of Hadoop ecosystem tools (Impala, Hive, Solr, Oozie, Kafka, NiFi, Sqoop);
  • Experience designing and implementing big data solutions;
  • Analytical skills, very good communication skills, teamwork;
  • Ability to prioritize tasks and commitments;
  • Discretion, responsibility, accuracy, loyalty;
  • English - excellent level of proficiency


Our offer:

  • You will work on a unique technical infrastructure for Bulgaria built on an institutional cloud managed by Kubernetes;
  • You will learn the tools and technologies for big data processing from the Hadoop ecosystem;
  • You will have the opportunity to work on a large EU-funded Horizon Europe project in an international team of experts and researchers in the field of artificial intelligence and data processing;
  • You will be able to benefit from numerous training, knowledge exchange and professional development opportunities at national and international level;
  • Flexible work schedule and work in a modern and attractive work environment that stimulates creativity and productivity;
  • Competitive working conditions and remuneration 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 February 13th 2024:

  • 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: career@gate-ai.eu


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 13th February 2024.
  • An interview with the successful candidates will take place until 15th February 2024.
  • All interviewed candidates will be informed of the outcome of the competition.
  • The selected candidates will be hired on a labor contract.