Senior PostgreSQL Database Administrator

At **Paymentology**, we’re redefining what’s possible in the payments space. As the first truly global issuer-processor, we give banks and fintechs the technology and talent to launch and manage Mastercard and Visa cards at scale - across more than 60 countries.

Our advanced, multi-cloud platform delivers real-time data, unmatched scalability, and the flexibility of shared or dedicated processing instances. It’s this global reach and innovation that sets us apart.

We’re looking for a **Senior PostgreSQL Database Administrator** to provide technical leadership across our PostgreSQL estate, ensuring the performance, scalability, security, and resilience of our mission-critical data platforms. This role is central to shaping database strategy, leading cloud migrations, and driving operational excellence across global, high-availability systems.

**Requirements**:
**What it takes to succeed**:

- ****Minimum 7 years of experience in database administration with advanced, hands-on expertise in PostgreSQL.
- Strong expertise in PostgreSQL architecture, internals, and operational management within enterprise environments.
- Deep experience in PostgreSQL performance tuning, query optimisation, and schema design at scale.
- Strong understanding of cloud-native PostgreSQL services, particularly AWS RDS, Aurora, and Redshift.
- Proficiency in automation and scripting for PostgreSQL operations using Python, Bash, or PowerShell.
- Advanced knowledge of PostgreSQL backup, replication, high availability, and disaster recovery concepts.
- Hands-on experience with PostgreSQL ecosystem tools such as pgBadger, pgPool, Slony, and pgBouncer.
- Strong knowledge of database security, access controls, encryption, and compliance frameworks.
- Excellent communication and leadership skills with the ability to influence and guide technical teams.
- A strategic, continuous-improvement mindset with strong ownership and accountability.

What you get to do:
**Database Architecture & Strategy**
- Lead the design and implementation of secure, scalable PostgreSQL database architectures across hybrid and cloud environments including AWS RDS, Aurora, and Redshift.
- Translate operational and business requirements into optimised PostgreSQL schemas, storage strategies, and replication topologies.
- Evaluate and integrate emerging PostgreSQL technologies and features to support platform growth, resilience, and long-term sustainability.

**Database Administration & Performance**
- Oversee the administration of PostgreSQL databases including configuration, upgrades, patching, and lifecycle management.
- Lead complex PostgreSQL performance tuning initiatives through deep query analysis, execution plan optimisation, and resource allocation.
- Provide technical guidance to engineers and junior DBAs on PostgreSQL schema design, indexing strategies, and query optimisation best practices.

**Cloud Migrations & Modernisation**
- Lead end-to-end PostgreSQL migration projects from on-premise to cloud-native platforms, including lift-and-shift and re-platforming initiatives.
- Ensure seamless integration of PostgreSQL with cloud infrastructure while maintaining data integrity, availability, and performance.
- Design and implement solutions supporting elasticity, auto-scaling, and disaster recovery in cloud environments.

**Backup, Recovery & High Availability**
- Design and manage robust PostgreSQL backup, recovery, and disaster recovery strategies to ensure rapid restoration and data protection.
- Implement high availability architectures using PostgreSQL replication, clustering, and failover mechanisms.
- Regularly test and validate disaster recovery procedures across environments to meet business continuity requirements.

**Security & Governance**
- Enforce enterprise-grade PostgreSQL security standards including encryption, role-based access control, auditing, and compliance adherence.
- Collaborate with Information Security and Compliance teams to support audits and regulatory requirements.
- Proactively identify and remediate PostgreSQL vulnerabilities and security risks.

**Monitoring, Automation & Scripting**
- Implement monitoring and alerting solutions to proactively track PostgreSQL performance, capacity, and operational health.
- Develop automation and tooling using Python, Bash, or PowerShell to streamline PostgreSQL administration and reduce operational overhead.
- Leverage PostgreSQL community and open-source tools such as pgBadger, pgPool, pgBouncer, and pgAdmin for optimisation and visibility.

**Collaboration, Documentation & Leadership**
- Collaborate with engineering, DevOps, and infrastructure teams to support CI/CD pipelines and production releases.
- Maintain clear technical documentation, define PostgreSQL standards, and mentor junior DBAs to build internal capability and best practices.

What you can look forward to:
At **Paymentology**, it’s not just about building world-class payment technology, it’s about building a company whe