Database Performance Engineer - Bengaluru
Zycus
Bengaluru, Karnataka, India
Job Description Zycus is looking out for a Database Performance Engineer having expertise in Postgre database solutions including, configuration, performance tuning, troubleshooting, and backups. Roles and Responsibilities: The PostgreSQL and Mongo Database Performance Engineer will be responsible for understanding operational requirements including Hardware, Architecture, configuration, Integration, and maintaining mission-critical Production PostgreSQL databases. Must have strong experience in DB tuning and implementing optimized configurations as per application load Hands on knowledge on writing stored procedures, functions, packages, triggers, and other database objects, to implement business logic and data processing Optimize queries for efficient execution and improved database performance Proficient in code reviews to ensure adherence to coding standards and best practices Performance Tuning and resolve performance issues in the database and queries Provide technical support and assistance to end-users, troubleshooting queries/DB related issues Identify and resolve errors in queries for robust error handling Design and create database objects, including tables, views, indexes, and sequences Write complex SQL queries to retrieve, insert, update, and delete data Familiar with SQL sub queries, Joins, applying Constraints Estimate PostgreSQL database capacities; develop methods for monitoring database capacity and usage. Lead efforts to develop and improve procedures for automated monitoring and proactive intervention, reducing any need for downtime. Develop Stored Procedures and Database Triggers in support of application development. Participate in application development projects and be responsible for the database architecture and design. Participate in the creation of development, staging, and production database instances, and the migration from one environment to another. Responsible for developer SQL code review to ensure queries are optimized and tuned to perform efficiently prior to production release. Responsible for efficient recovery of databases in case of crashes. Responsible for regular maintenance of databases and proactive remediation of database operational problems. Responsible for Query tuning and preventative maintenance. Experience with Mongo DB ATLAS is nice to have but not mandatory Support complex web-based applications. Job Requirement 5-8 years of relevant experience in PostgreSQL required Experience in Performance Tuning of large Mongo DB instances Experience as DBA in high-load, large-sized production DB Must have experience in PostgreSQL database architecture, logical and physical design, automation, documentation, installs, shell scripting, PL/ SQL programming, catalog navigation, query tuning, system tuning, resource contention analysis, backup and recovery, standby, replication, etc. Must have strong knowledge of AWS Cloud and Azure Cloud. Good Knowledge of pgbadger and pgclue report analysis Hands-on experience on HA (High Availability) Configuration and strong knowledge of High Availability and Disaster Recovery concepts (i.e. Replication, Cluster). Must have strong knowledge of Linux operating systems Strong understanding of command line and server administration. Knowledge of shell scripting (e.g., Bash, Perl). Strong experience in Performance tuning Excellent communication and presentation skills with the ability to communicate at all levels of the organization. Technical leadership and mentoring skills to guide and act as SME. Exceptional problem-solving skills Keen to learn new technology with enthusiasm and critical thinking Ability to work within a team environment. Self-starter and ability to perform work with minimal supervisory direction Excellent analytical and problem solving skills Ability to detect and troubleshoot database-related CPU, memory, I/O, disk space, and other resource contention issues. Have proficiency with Linux for basic administrative tasks Experience with Unix/Linux including basic commands and basic shell scripting
