About the project:  The Client is a card transaction processing company that provides services to banks and other state or commercial companies within Ukraine and abroad.

The project offers payment solutions: money transfers, POS services, ATM monitoring services, etc.  The system accepts payments by payment cards and e-wallets and provides convenient tools for the development of e-commerce.

Whatever business is: online, offline, or on mobile phone, launch an online store, a mobile application, issue an invoice, or arrange for subscription services - the platform will help with any task.

In addition, the team works on separate services for Merchant control, simplified flows to process the payments, etc.

  Requirements: 3+ years of experience as a PostgreSQL industrial database administrator, working with OLTP systems; Understanding of PostgreSQL DBMS (Database Management System) architecture principles with experience configuring and working with additional services like Oracle_fdw, HAProxy, Keepalived, ETCD, Patroni (or similar); Experience migrating from Oracle or other DBMS to PostgreSQL, upgrading PostgreSQL versions, and installing PostgreSQL updates; Experience and knowledge of SQL, PL/pgSQL, backup systems (Data Protector, Tivoli), and monitoring systems (Icinga, Zabbix, Prometheus); Experience with PostgreSQL RDS databases; Desire to learn new systems to find solutions for task implementation, and independently solve problems within a specified timeframe; Fluent Ukrainian is required (internal communication is in Ukrainian); English level – B1/B2.  Will be a plus: Experience with financial domains ;   Responsibilities: Organization and support of processes for installation, configuration, operation, and monitoring of PostgreSQL DBMS (PostgreSQL cluster with Patroni); Configuration of physical and logical replication for PostgreSQL databases, as well as data backup and recovery; Performance issue analysis for PostgreSQL DBMS, identifying and providing recommendations to improve the efficiency of both the database and applications; Analysis and implementation of security policy requirements, updates, and database backup; Resolution of emergency situations and errors in PostgreSQL DBMS operation (during and outside of working hours).  Powered by JazzHR