Cloud Database Administrator -PostgreSQL / MS SQL / Oracle

JR United Kingdom; City Of London; On-site; GBP 40,000 - 65,000; Full time

Job summary

A leading company in the UK is seeking a skilled Database Administrator to manage and optimize databases in both cloud and on-premise environments. This role requires hands-on experience with PostgreSQL, MS SQL Server, and Oracle, focusing on performance tuning, security measures, and ensuring data availability. You will collaborate with various teams to enhance system performance and implement efficient backup solutions in a dynamic, multi-cloud setting.

Qualifications

• Hands-on experience with AWS RDS, EC2, and Azure SQL Database is essential.
• Advanced SQL skills and experience with OLTP and OLAP systems.
• Familiarity with performance tuning tools and security measures.

Responsibilities

• Administer and optimize PostgreSQL, MS SQL Server, and Oracle databases in cloud and on-premises environments.
• Implement robust backup and disaster recovery procedures.
• Work collaboratively with development and infrastructure teams.

Skills

Database Design

Cloud Automation

Performance Tuning

Security Compliance

Advanced SQL

Shell/Python Scripting

Job description

Location: London (3 days/week Onsite)

Duration: 6 months+

Job Description

We are seeking a multi-skilled Database Administrator with proven hands-on experience across PostgreSQL, MS SQL Server, and Oracle, preferably in hybrid and multi-cloud environments (AWS/Azure/OCI). The ideal candidate will have a balanced mix of cloud-native DB administration, on-premise DB optimization, and cross-platform migration experience.

This role focuses on supporting enterprise-level systems, with PostgreSQL as the strategic database engine, and requires working collaboratively with development and infrastructure teams to ensure availability, performance, and scalability of data platforms.

Key Responsibilities

• Cloud-Based & On-Prem DB Administration: Administer, configure, and optimize PostgreSQL, MS SQL Server, and Oracle databases hosted in AWS, Azure, and on-premises.
• Database Design & Development: Design new schemas, optimize existing structures, and support database components aligned with application needs.
• Performance Tuning: Monitor and tune query and system performance across PostgreSQL, MS SQL, and Oracle DBs. Identify and resolve performance bottlenecks.
• Backup & Disaster Recovery: Define and implement robust backup/recovery procedures for multi-DB environments across different platforms and cloud providers.
• Security & Compliance: Implement access controls, encryption, auditing, and ensure compliance with data protection standards.
• Cloud Automation & Scalability: Automate database operations using cloud-native tools and scripting (e.g., Terraform, Ansible, AWS RDS/Aurora tools, Azure SQL automation).
• Monitoring & Health Checks: Utilize tools such as CloudWatch, Azure Monitor, OEM, or Prometheus to monitor performance and availability.
• Troubleshooting & Root Cause Analysis: Diagnose and resolve database incidents; conduct RCAs for critical incidents and outages.
• Collaboration: Work closely with DevOps, Application, and Security teams for seamless integration, monitoring, and support.

Required Skills & Experience

Hands-on experience with AWS (RDS, EC2, Aurora) and/or Azure (SQL Database, Managed Instances).

MS SQL Server – Always On, indexing, query tuning, backups

Oracle 12c/19c – RAC, Data Guard, ASM, RMAN, patching, performance tuning

SQL & Scripting: Advanced SQL skills; Shell/Python scripting for automation.

Database Design & Data Modeling: Experience with OLTP and OLAP systems, normalization, and warehousing concepts.

Monitoring Tools: CloudWatch, Azure Monitor, OEM, Nagios, or equivalent.

Security & DR: Familiarity with encryption (TDE, SSL), auditing, and DR testing.