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Senior PostgreSQL Database Administrator

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Paymentology

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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

Additional Information:

Job Posted:
January 26, 2026

Employment Type:
Fulltime
Work Type:
Remote work
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