Database Engineer (SQL & NoSQL Technologies)

Blackfluo.ai; Paris; Sur place; EUR 45 000 - 65 000; Plein temps

Résumé du poste

A leading technology firm in France is seeking a skilled Database Engineer to manage SQL and NoSQL databases. This role involves deploying, configuring, and maintaining various database systems, as well as optimizing performance and ensuring data integrity. The ideal candidate has over 5 years of database administration experience and technical expertise in both SQL and NoSQL technologies. The position offers an opportunity to work on cutting-edge data solutions.

Qualifications

• 5+ years experience administering multiple database technologies (SQL and NoSQL).
• Expert knowledge of MS SQL Server and PostgreSQL administration.
• Strong experience with at least 3 NoSQL technologies.

Responsabilités

• Deploy, configure, and maintain SQL Server and PostgreSQL database systems.
• Administer MongoDB clusters and manage Redis implementations.
• Conduct database performance tuning and resource utilization analysis.

Connaissances

SQL Server administration

PostgreSQL administration

MongoDB

Redis

Neo4j

CosmosDB

ClickHouse

Formation

Bachelor's degree in Computer Science or related field

Outils

Python

PowerShell

Bash

Description du poste

About the job 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

Design polyglot persistence architectures combining SQL and NoSQL technologies

Configure object storage solutions using S3 and MinIO for unstructured data

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