Senior PostgreSQL Database Administrator Job at Paymentology

Job Description

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.

Job Responsibility

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
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
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
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
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
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
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

Requirements

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

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Senior PostgreSQL Database Administrator

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