About the job Database Engineer (SQL & NoSQL Technologies)

Database Engineer (SQL & NoSQL Technologies)

Position Overview

We are seeking a Database Engineer with expertise in both SQL and NoSQL database technologies to design, implement, and manage diverse database systems including MS SQL Server, ClickHouse, PostgreSQL, MongoDB, Redis, Neo4j, CosmosDB, and MarkLogic, supporting enterprise-scale applications and analytics workloads.

Key Responsibilities

SQL Database Administration

• Deploy, configure, and maintain SQL Server, PostgreSQL, and ClickHouse database systems
• Design database schemas, indexing strategies, and query optimization for high-performance applications
• Implement backup and recovery procedures, high availability solutions, and disaster recovery planning
• Monitor database performance, capacity planning, and implement scaling strategies
• Configure security policies, user access controls, and compliance monitoring

NoSQL Database Management

• Administer MongoDB clusters, sharding configurations, and replica set deployments
• Manage Redis implementations for caching, session storage, and real-time analytics
• Configure Neo4j graph databases for relationship analysis and network data processing
• Implement CosmosDB solutions with multi-model capabilities and global distribution
• Maintain MarkLogic enterprise NoSQL platform for document and semantic data management

Data Architecture & Integration

• Design polyglot persistence architectures combining SQL and NoSQL technologies
• Implement data migration strategies between different database platforms
• Configure object storage solutions using S3 and MinIO for unstructured data
• Design data integration pipelines connecting multiple database systems
• Implement data synchronization and consistency mechanisms across distributed databases

Performance Optimization & Monitoring

• Conduct database performance tuning, query optimization, and resource utilization analysis
• Implement monitoring solutions and alerting systems for proactive database management
• Design partitioning strategies and implement database scaling solutions
• Configure automated maintenance tasks and health check procedures
• Troubleshoot complex database issues and coordinate vendor support escalations

Required Qualifications

Technical Skills

• 5+ years experience administering multiple database technologies (SQL and NoSQL)
• Expert knowledge of MS SQL Server, PostgreSQL administration, and T-SQL/PL/pgSQL development
• Strong experience with at least 3 NoSQL technologies: MongoDB, Redis, Neo4j, CosmosDB, or MarkLogic
• Proficiency in database design, normalization, and data modeling for both relational and document stores
• Experience with ClickHouse or similar columnar databases for analytics workloads
• Knowledge of database security, encryption, and compliance frameworks

Platform Skills

• Experience with cloud database services (Azure SQL, AWS RDS, Google Cloud SQL)
• Understanding of containerization and orchestration for database deployments
• Knowledge of automation tools, scripting languages (Python, PowerShell, Bash)
• Experience with backup solutions, replication technologies, and disaster recovery planning

Preferred Qualifications

• Bachelor's degree in Computer Science, Information Systems, or related field
• Database certifications (Microsoft SQL Server, MongoDB, PostgreSQL, Oracle)
• Experience with database migration tools and cross-platform data movement
• Background in data warehousing, ETL processes, and business intelligence platforms
• Knowledge of graph theory and semantic data technologies