Sr Database Administrator

About the Role
We are seeking an experienced Senior Database Administrator to manage and optimize enterprise database platforms across SQL Server, PostgreSQL, and Snowflake, hosted primarily on AWS. This role is responsible for database performance, availability, security, automation, disaster recovery, and production support for mission-critical systems.

Key Responsibilities
Administer and support SQL Server, PostgreSQL, and Snowflake environments
Monitor, tune, and optimize database performance and reliability
Implement and maintain HA/DR solutions including Always On, Replication, Clustering, and Log Shipping
Manage backups, recovery, upgrades, patching, and database maintenance
Support AWS database services including RDS, EC2, S3, CloudWatch, and IAM
Develop automation using PowerShell, Python, and T-SQL
Ensure database security, compliance, auditing, and access controls
Provide production support and participate in on-call rotations
Collaborate with Cloud, Infrastructure, Security, and Development teams
Required Skills
8+ years of Database Administration experience
Strong expertise in SQL Server (2016/2019/2022) and performance tuning
Hands-on PostgreSQL administration and replication experience
Snowflake administration and support experience
Strong AWS knowledge (RDS, EC2, S3, IAM, CloudWatch)
Experience with HA/DR, backup/recovery, and disaster recovery planning
Scripting and automation using PowerShell, Python, or Terraform and experience with DevOps practices and Version Control (Git)

Preferred Certifications
AWS Certified Database Specialty
AWS Solutions Architect
SnowPro Core Certification
Microsoft SQL Certifications
PostgreSQL Certifications

Why Join Us
Work with modern cloud database platforms, drive automation initiatives, and help deliver highly available, secure, and scalable data services supporting critical business applications.

Equal Opportunities Statement

At Gresham, we are committed to building a diverse and inclusive workforce that reflects the communities we serve. We actively encourage applications from individuals of all backgrounds and are dedicated to providing a workplace where everyone feels valued, respected and supported.
We make employment decisions based on merit, skills and potential, and do not discriminate based on any protected characteristic. We are also committed to making reasonable adjustments throughout the recruitment process and employment lifecycle.

Company Summary

Gresham is a global financial services technology company specialising in enterprise data automation. We help financial institutions ensure that their operational, regulatory and management data is complete, accurate, timely and fully auditable - particularly within complex environments where data is distributed across multiple systems.

Our solutions automate data controls, reconciliations, workflows and exception management, enabling clients to reduce operational risk, strengthen data governance and enhance confidence in reporting across highly regulated environments. Serving both buy-side and sell-side organisations worldwide, Gresham partners with clients to deliver trusted, transparent and resilient data operations.



Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.