Senior PostgreSQL Database Administrator

At Paymentology were redefining whats 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. Its this global reach and innovation that sets us apart.

Were 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.

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

• Act as a PostgreSQL subject matter expert and trusted advisor across database initiatives and platform projects.
• 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.

At Paymentology its not just about building world-class payment technology its about building a company where people feel they belong and their work matters. Youll be part of a diverse global team committed to making a meaningful impact with the opportunity to work on large-scale mission-critical platforms while growing your career in a supportive and forward-thinking environment.

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.