Lead Platform Engineer: PostgreSQL & Cassandra Expert

Mastercard; Bray (OK); On-site; USD 104,000 - 151,000; Full time

Job summary

Mastercard in Dublin seeks an experienced Lead Platform Engineer specializing in PostgreSQL and Cassandra to design, build, and operate database platforms at scale. You will drive automation, cloud adoption, and performance improvements while collaborating with infra, application development, and security teams to ensure reliability and security across enterprise environments.

This role also offers leadership opportunities and exposure to cutting-edge data technologies within a global payments

Qualifications

• Bachelor's degree in CS or related field.
• 5+ years in database administration/engineering.
• Production PostgreSQL and Cassandra experience.
• Automation experience and cloud platforms preferred.

Responsibilities

• Build and maintain PostgreSQL and Cassandra environments.
• Ensure high availability, DR, and capacity planning.
• Automate deployments and CI/CD for databases.
• Monitor performance, tune queries, and optimize schemas.
• Collaborate with infra, security, and application teams.

Skills

PostgreSQL

Cassandra

Database engineering

Automation scripting

Python

CI/CD pipelines

Education

Bachelor's degree in Computer Science

Tools

Terraform

Ansible

Bicep

Dynatrace

Splunk

Job description

Mastercard in Dublin seeks an experienced Lead Platform Engineer specializing in PostgreSQL and Cassandra to design, build, and operate database platforms at scale. You will drive automation, cloud adoption, and performance improvements while collaborating with infra, application development, and security teams to ensure reliability and security across enterprise environments.

This role also offers leadership opportunities and exposure to cutting-edge data technologies within a global payments