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HELSI
HELSI is a medical information system that is currently one of the largest in Ukraine. The service allows patients to quickly and conveniently make an appointment with a doctor, diagnoses, tests, vaccinations and order medicines, and hospitals to participate in the reform of the health care system to ensure equal access to quality medical services for all citizens of Ukraine.
More than 8.3 million people are already users of the Helsi mobile application. The system is used by more than 2,600 health care institutions and more than 38,000 doctors throughout Ukraine.
What we expect from you:
Experience in developing relational databases (MySQL , PostgreSQL) from 4x+ years and above (structures, schemes; procedures, functions). Experience with partitioning
Experience with Mongo DB . Experience in sharding
Experience in setting up effective monitoring of database performance and query speed
Ability to analyze the query plan and optimize queries, understanding of types and index operations and their impact
Ability to work with CTE (including recursive), window functions, tree data structures
Understanding SQL -servers at the "physical" level (how tables, indexes, temporary data are physically stored; how the query execution process takes place, the combination of tables; what is the difference between data types)
What tasks await you:
Administration of company databases
Planning and upgrading of databases to current versions
Optimization of requests and structures
Support of data migrations
Development of new database structures and procedures
Close interaction with the DevOps team, architects and technical leads
What we offer:
Work in a convenient and comfortable office in the innovative location of Unit.City: A modern office with all the necessary conditions for productive work.
Opportunities for professional and career growth in the company: Continuous development and the possibility of career growth.
To be involved in the creation of a project that helps millions of Ukrainians: You will be part of a team that makes a significant contribution to society.
Attractive salary: Competitive compensation for your work.
High degree of independence in our work: Independence and initiative are welcome.
Great friendly team: Work with motivated and result-oriented colleagues.
Paid vacation and sick leave : Provision of necessary rest and support.
Please note: by sending us your resume, you give consent to Halsey Ukraine LLC to process your personal data in accordance with the Law of Ukraine "On Personal Data Protection" with for the purpose of the company's search for specialists, further contact and conducting an interview.