Senior PostgreSQL Database Administrator

Description

Summary: Paymentology is seeking a Senior PostgreSQL Database Administrator to lead database strategy, cloud migrations, and operational excellence for global, high-availability systems. Highlights: 1. Redefine payments as part of the first truly global issuer-processor. 2. Lead design and implementation of secure, scalable PostgreSQL architectures. 3. Be a PostgreSQL subject matter expert and trusted advisor. 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** * 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. What you can look forward to:: At **Paymentology**, it’s not just about building world\-class payment technology, it’s about building a company where people feel they belong and their work matters. You’ll 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. Travel: \< 10%