Lead Platform Engineer Job Listing at Mastercard in O'Fallon, MO (Job ID R-265087)

Description

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

Lead Platform Engineer About the Job – Our Purpose We connect and power an inclusive digital economy that benefits everyone by making transactions safe, simple, and accessible. Through secure data, networks, partnerships, and innovation, we help individuals, institutions, governments, and businesses reach their potential. Our culture is driven by a strong decency quotient (DQ), fostering inclusion, respect for diverse strengths, and collaboration that leads to better decisions, innovation, and business outcomes.

Lead Platform Engineer – Summary
The Database Engineering team seeks a Lead Platform Engineer with deep expertise in Redis and strong knowledge of Postgres and Cassandra. This role focuses on building scalable, high-performance caching and data platforms across on-prem and cloud (AWS, Azure) environments. Ideal candidates are customer-focused, analytical, and passionate about distributed systems.

Description
• 7–15+ years of experience with Redis Enterprise and cloud services; hands-on Postgres or Cassandra required.
• Implement and manage databases in AWS/Azure.
• Participate in weekly on call rotation and in case of any production issues.
• Install, configure, patch, upgrade, shard, and administer Redis, Postgres, and Cassandra clusters.
• Build proactive monitoring and observability dashboards to detect issues before they impact performance.
• Create dashboards/alerts using Redis Insights, SNS, Splunk, Dynatrace, PEM.
• Troubleshoot high-throughput, low-latency systems.
• Manage user access/security: roles, privileges, IAM, TLS, PCI compliance.
• Implement backups, recovery, snapshots, PITR, cross-region DR.
• Perform schema upgrades, testing, validation.
• Support HA installations and configurations.
• Maintain security controls and support internal/external audits (PCI).
• Create documentation, procedures, and best-practice guides.
• Communicate database strategy, governance, best practices.
• Collaborate with cross-functional, global teams.
• Multi-task, learn new technologies, and prioritize effectively.
• Research and adopt modern database technologies; lead PoCs.
• Prepare and deliver presentations for training and business discussions.
• Drive intellectual property development for teams and projects.
• Troubleshoot complex challenges across Mastercard.

About You
• Education (Preferred): Bachelor's degree in Computer Science, Information Systems, or equivalent experience.

Redis
• Expert in Redis architecture/internals: clustering, sharding, modules, CRDB Active-Active; strong Postgres/Cassandra architecture knowledge required.
• Skilled in Redis installation/configuration on-prem and cloud.
• Strong observability/monitoring using Redis Insight, Prometheus, Grafana, CloudWatch, Splunk.
• Skilled in provisioning/scaling cloud Redis, including serverless/global configurations.
• Experienced with replication (async/sync, CRDB, geo-replication).
• Proficient with shard optimization, WAIT, consistency principles.
• Strong diagnostic and tuning skills: memory optimization, eviction policies, latency profiling, redis-benchmark.
• Deep knowledge of Redis data structures and modules (RedisJSON, RediSearch, RedisGraph, TimeSeries).
• Experience with ElastiCache, Azure Cache, Memorystore.
• Enforce ACLs, TLS, auditing, encryption, autoscaling, cost controls.
• Implement proactive monitoring with CloudWatch and custom metrics.
• Strong production troubleshooting; on-call readiness.
• Performance tuning, debugging, CI/CD automation.
• Manage Redis config via GitHub; use Terraform/CloudFormation for orchestration.
• Integrate Redis ops with CI/CD (GitHub, Jenkins).
• Knowledge of caching design and real-time data modeling.
• Strong Linux/Unix, load balancer/F5, and scripting (Bash, Python).
• Manage clustering, replication, CRDB, Postgres/Cassandra replication, patching, upgrades.

Postgres
• Skilled in PostgreSQL/EDB/AWS Aurora design, administration, installation, and configuration.
• Strong SQL tuning, EXPLAIN ANALYZE, pgBadger, PEM, CloudWatch, Splunk, Dynatrace; enforce IAM, encryption, auditing, and cost optimization.
• Experienced in streaming replication, logical replication, Postgres Distributed - PGD, BDR, and Aurora Global Database.
• Strong Aurora provisioning/orchestration with CloudFormation, Lambda, Terraform, GitHub/Jenkins/Bitbucket.
• Implements DDL version control (Flyway).
• Advanced Linux/Unix and scripting (Bash, ksh, Perl); ITSM process knowledge.

Cassandra
• Skilled in design, installation, configuration, and maintenance of Apache Cassandra and AWS Keyspaces; experienced with large clusters (50+ nodes).
• Strong diagnostics, troubleshooting, log analysis; proactive monitoring using Dynatrace, CloudWatch; enforce IAM, encryption, auditing, KMS.
• Deep Cassandra internals: consistency levels, hinted handoff, repairs, replication factor, rack awareness, node replacement, patching, upgrades.
• Strong data modeling and avoidance of anti-patterns; experience with GSI, SAI, and automation frameworks.
• Integrates with CI/CD (Bitbucket, GitHub, Jenkins, Terraform, Lambda).
• Advanced Linux/Unix and scripting (Bash, ksh, Perl); ITSM (Remedy).

Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks come with an inherent risk to the organization. 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. 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 reasonable_accommodation@mastercard.com 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: $122,000 - $207,000 USD

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