Design implement and operate highly available AWS database platforms (PostgreSQL primary Oracle optional). Perform provisioning patching tuning monitoring backups DR automation (IaC scripting) CI/CD for schema changes incident response capacity planning and mentor team members in a 24x7 enterprise environment.

Our Purpose
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices making transactions secure simple smart and accessible. Our technology and innovation partnerships and networks combine to deliver a unique set of products and services that help people businesses and governments realize their greatest potential.
Title and Summary
Senior Platform Engineer - Database Administration (AWS Focus)
Overview
The Senior Platform Engineer - Database Administration is responsible for designing implementing and managing scalable secure and highly available database platforms on AWS Cloud supporting critical business applications. This role emphasizes PostgreSQL as the primary database platform with Oracle expertise as a strong advantage.
The position focuses on cloud-native database engineering automation platform reliability and operational excellence ensuring modern resilient data platforms in a 24x7 enterprise environment.
Role Responsibilities
Cloud & Platform Engineering• Design implement and manage AWS-based database solutions including Amazon RDS Aurora PostgreSQL EC2-hosted databases and hybrid architectures.• Build and maintain cloud-native scalable and highly available database platforms aligned with enterprise standards.• Collaborate with architecture teams to design secure and resilient cloud database architectures.
Database Administration• Administer and support PostgreSQL databases (primary focus) in production environments.• Support Oracle database environments (on-prem / cloud) as an additional skillset.• Manage database lifecycle activities including provisioning patching upgrades and migrations.
Performance & Reliability• Monitor database performance using AWS CloudWatch Performance Insights and native tools.• Perform query tuning indexing strategies and performance optimization.• Conduct root cause analysis (RCA) for performance and availability incidents.• Implement capacity planning and scaling strategies for cloud-based workloads.
Automation & DevOps• Build and maintain automation for database provisioning patching backups and failover using tools such as:
o Terraform / CloudFormation (IaC)
o Ansible / scripting (Python Bash)• Enable CI/CD pipelines for database changes and schema deployments.• Drive standardization and process automation across environments.
High Availability & DR• Implement and manage high availability configurations:
o Aurora multi-AZ RDS Multi-AZ
o PostgreSQL replication and failover• Design and execute backup recovery and disaster recovery strategies in AWS.• Validate DR through regular testing and failover drills.
Security & Compliance• Implement AWS and database security best practices including IAM encryption (KMS) and network isolation (VPC SGs).• Ensure compliance with organizational and regulatory policies.• Proactively identify and mitigate risks related to database security and access.
Collaboration & Operations• Collaborate with application analytics and infrastructure teams to optimize data solutions.• Support release and deployment activities including schema changes and validations.• Participate in incident management on-call rotation and continuous improvement initiatives.• Provide technical guidance and mentoring to team members.
Required Skills
AWS & Cloud Platforms (Primary)• Hands-on experience with:
o Amazon RDS (PostgreSQL)
o Aurora PostgreSQL
o EC2-based database deployments• Strong understanding of:
o VPC networking security groups
o IAM roles and policies
o CloudWatch CloudTrail monitoring• Experience with Infrastructure as Code (Terraform / CloudFormation)
Database Platforms• Strong expertise in PostgreSQL DBA (mandatory)• Experience in Oracle DBA (add-on / good to have)• Database platform engineering and lifecycle management
Performance & Reliability• Query optimization and performance tuning• Monitoring and alerting• Troubleshooting and RCA• High availability and resilience design• Backup and disaster recovery strategies
Automation & Engineering• Scripting: Python Bash• Automation frameworks and tooling• CI/CD integration for database deployments• Configuration management
Systems & Infrastructure• Linux/Unix administration• Networking fundamentals• Virtualized and distributed environments
Security & Risk• Database and cloud security best practices• Encryption access control auditing• Risk mitigation and compliance adherence
Ways of Working• Agile methodology• Cross-functional collaboration• ITSM practices (incident change problem management)• Strong communication and stakeholder management skills
All About You
Experience• 7+ years in database administration / platform engineering• Strong experience with PostgreSQL in AWS environments• Experience managing production database systems in 24x7 environments• Hands-on experience with AWS database services and cloud-native architecture• Experience with database migrations (on-prem → AWS)
Good to Have• Oracle DBA experience (RAC Exadata OEM)• Experience with PostgreSQL on Aurora vs self-managed comparison• Exposure to multi-cloud or hybrid environments• Experience with Redis / caching technologies• Knowledge of data replication and distributed database systems• Experience driving standardization compliance and operational excellence initiatives
Preferred Qualifications• Experience architecting large-scale AWS database platforms• Advanced PostgreSQL performance tuning• Experience with database observability tools• Strong background in automation and DevOps practices• Understanding of microservices and cloud-native application architecture
Mastercard is a merit-based inclusive equal opportunity employer that considers applicants without regard to gender gender identity sexual orientation race ethnicity disabled or veteran status or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada if you require accommodations or assistance to complete the online application process or during the recruitment process please contact [email protected] and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
Corporate Security Responsibility
All activities involving access to Mastercard assets information and networks comes with an inherent risk to the organization and therefore it is expected that every person working for or on behalf of Mastercard is responsible for information security and must:

• Abide by Mastercard's security policies and practices;
• Ensure the confidentiality and integrity of the information being accessed;
• Report any suspected information security violation or breach and
• Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.

In line with Mastercard's total compensation philosophy and assuming that the job will be performed in the US the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors including but not limited to location job-related knowledge skills and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical prescription drug dental vision disability life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time 25 days of vacation time and 5 personal days pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.
Pay Ranges
O'Fallon Missouri: $96000 - $163000 USD