Our Client a global payments provider, offers a range of cost-effective and efficient end-to-end payment solutions across the online gaming, travel, Forex and eCommerce sectors. They are looking to attract aSenior Database Administrator with exceptional experience in PostgreSQL and enterprise-scale database architecture for their business.The candidate will collaborate closely with Development and Data teams, designing and maintaining solutions using big-data technologies as the Company scales globally. You will be a key contributor to designing resilient, high-performance data solutions for a transaction-heavy fintech environment. The role involves working with AWS utilising tools such as AWS RDS PostgreSQL, GitHub, Redis, RabbitMQ, Linux, Datadog etc.KEY RESPONSIBILITIES:Database Architecture & AdministrationResearch and deploy proof of concept (PoC) for new emerging technologies.Lead the design, installation, configuration, optimisation and maintenance of PostgreSQL databases (AWS RDS) across production and non-production environments.Define and implement scalable database architectures and techniques to support business growth and increasing compliance requirements.Ensure high availability, disaster recovery, and security best practices.Performance EngineeringDrive query optimisation, indexing strategies, and schema design for large-scale transactional systems.Proactively identify and resolve performance bottlenecks, locks, and deadlocks.Partner with developers to optimise various procedures including triggers, and data access patterns.Collaboration & Solution DesignWork closely with DevOps, Development, and Data/Reporting teams to design data solutions aligned with application architecture.Provide technical leadership on database integration for new products and features.Advise on database schema design, optimisation, and maintenance strategies to support efficient data storage, database integrity, scalability and performance across all environments.24x7 assist in proactive monitoring and support of the solutions deployed.Automation & ObservabilityAutomate routine DBA tasks using Python and infrastructure-as-code principles.Implement advanced monitoring and alerting using Datadog, Grafana, and other observability tools.Governance & ComplianceEnsure database environments meet PCI DSS and other regulatory standards.Maintain comprehensive documentation for configurations, processes, and architectural decisions.Conduct security risk and vulnerability assessments on developed and installed databases.KEY REQUIREMENTS10+ years in database administration, with 5+ years dedicated to PostgreSQL in production environments. This is essential.Proven experience in solution architecture and designing scalable, secure database systems.Strong knowledge of SQL optimisation, indexing, and performance tuning.Proficiency in Linux administration and scripting (Bash, Python).Exposure to AWS RDS and cloud-native architectures; multi-cloud experience is a plus.Experience in financial services or other high-volume transactional environments.Familiarity with NoSQL and in-memory databases (Redis, etc.) is advantageous.Excellent problem-solving skills and ability to operate in a fast-paced, agile environment.