Emerald Resource Group

Sr DevOps Engineer

Salary: Up to 110k for the right background

Hybrid: In Ritchfield, Ohio

Only US Citizens will be considered

About the Role

We are seeking a DevOps Engineer to scale our high velocity payments platform and manage transactions within our multi-tenant AWS environment. You will dive into our established architecture to improve automation and system resiliency while solving live production challenges. This role requires a practical engineer to optimize processing engines and maintain compliance as our merchant volume grows.

Responsibilities

• Ensure the reliability, availability, and performance of a multi-tenant production system
• Scale and operate AWS-based infrastructure supporting a Java web application
• Monitor and troubleshoot issues across application, database, cache, and data warehouse layers
• Improve observability through metrics, logging, and alerting
• Participate in on-call rotations and lead incident response and root cause analysis
• Identify performance bottlenecks and scaling limits in a shared-tenant environment
• Automate operational tasks and reduce toil where it matters most
• Work within existing frameworks and tooling to make systems safer and more scalable
• Partner with developers to improve deployments, capacity planning, and failure handling
• Implement automated load and fuzz testing
• Define key service level objectives (SLO)

Technologies You’ll Work With

• AWS (EC2, ECS, RDS, ElastiCache, Redshift, and related services)
• Java-based web applications
• MySQL (performance tuning, scaling, reliability)
• Amazon ElastiCache (Redis/Memcached)
• Amazon Redshift
• Monitoring and alerting tools (Graphite, Grafana, Cloudwatch)

Qualifications

• 3+ years of experience in SRE, DevOps, or production operations roles
• Strong understanding of AWS infrastructure and cloud-native scaling patterns
• Experience supporting Java applications in production
• Solid knowledge of MySQL performance, replication, and scaling strategies
• Experience operating cache layers and data stores at scale
• Understanding of multi-tenant architectures, including isolation, noisy-neighbor issues, and capacity planning
• Strong Linux fundamentals and troubleshooting skills
• Ability to stay calm, think clearly, and prioritize during incidents