O'Fallon, MO (Hybrid - 2 days a week onsite) Job Type: W2 Contract NOTE: This is not a Performance ... Service-to-service hops, TLS overhead, DNS, routing, load balancer configs (F5, Nginx, ALB/NLB ...
Quick apply
O'Fallon, MO (Hybrid - 2 days a week onsite) Job Type: W2 Contract NOTE: This is not a Performance ... Service-to-service hops, TLS overhead, DNS, routing, load balancer configs (F5, Nginx, ALB/NLB ...
Performance Engineer
Saint Louis, MO · On-site
Saint Louis, MO ( Locals) or should be 100% willing to relocate - will work 3 to 4 days onsite Job ... Service-to-service hops, TLS overhead, DNS, routing, load balancer configs (F5, Nginx, ALB/NLB ...
Quick apply
Performance Engineer
Saint Louis, MO · On-site
Saint Louis, MO ( Locals) or should be 100% willing to relocate - will work 3 to 4 days onsite Job ... Service-to-service hops, TLS overhead, DNS, routing, load balancer configs (F5, Nginx, ALB/NLB ...
Our Data Story With ten-thousands of active items on auction every day, hundred-thousands of bids ... nginx, CI/CD, * An entrepreneurial mindset that enables you to get things done, even if that ...
Our Data Story With ten-thousands of active items on auction every day, hundred-thousands of bids ... nginx, CI/CD, * An entrepreneurial mindset that enables you to get things done, even if that ...
Day Nginx information
What is the difference between Day Nginx vs Day Linux Administrator?
| Aspect | Day Nginx | Day Linux Administrator |
|---|---|---|
| Certifications | Certifications in Nginx, such as Nginx Certified Administrator | Linux certifications like CompTIA Linux+, RHCSA |
| Work Environment | Focus on web server configuration, optimization, and security | Manage Linux servers, troubleshoot, and maintain system health |
| Industry Usage | Web hosting, cloud services, content delivery networks | Data centers, enterprise IT, hosting providers |
Day Nginx specialists primarily focus on configuring and optimizing the Nginx web server, while Day Linux Administrators manage overall Linux server environments. Both roles require technical certifications and are vital in web hosting and enterprise IT sectors. The main difference lies in their scope: Nginx roles are specialized in web server management, whereas Linux Administrators handle broader system administration tasks.
What cities in Missouri are hiring for Day Nginx jobs?
Cities in Missouri with the most Day Nginx job openings:
Systems Performance Engineer / Performance Optimization Engineer - Only W2
O Fallon, MO • On-site
Saransh Inc •
IT Services • 51 - 200 employees51 - 200 employees
Contractor
Re-posted 18 days ago
Job description
Role: Systems Performance Engineer / Performance Optimization Engineer / Performance Analyst
Location: O'Fallon, MO (Hybrid - 2 days a week onsite)
Job Type: W2 Contract
Location: O'Fallon, MO (Hybrid - 2 days a week onsite)
Job Type: W2 Contract
NOTE: This is not a Performance Testing Role
Experience level: Lead/Chief/Principal/Staff
Responsible for identifying and resolving end-to-end performance bottlenecks across distributed systems, Spring Boot services, middleware components, and hybrid cloud environments (private cloud + AWS).This role goes far beyond traditional testing by deeply analyzing container orchestration, networking paths, and system interactions under load. This position maps full system workflows, sets realistic latency budgets, and ensures each component meets its SLOs. Ideal candidates have extensive experience with high-scale, multi-region, and high-transaction platforms (e.g., financial systems, payment processing, or large enterprise SaaS) running in a Cloud environment.
Key Responsibilities:
• Define service-level objectives (SLOs), performance budgets, and latency/throughput targets across services.
• Architect and champion comprehensive distributed tracing strategies (Dynatrace, AWS X-Ray, etc.).
• Analyze application, platform, and cloud behavior using deep-dive techniques such as heap dumps, thread dumps, flame graphs, GC logs, network traces, and storage I/O profiling.
• Review service and system architectures for performance risks (e.g., synchronous hops, excessive dependencies, misconfigured connection pools, poor cache placement).
• Conduct and lead root-cause analysis for performance incidents in production and pre-production environments.
• Develop capacity models and performance baselines for services running across cloud environments.
Areas of Expertise:
• Application Layer: Spring Boot internals, JVM tuning, thread/heap management, concurrency debugging, GC optimization
• Container Runtime: PCF, Docker, container resource limits, CPU throttling, memory pressure
• Orchestrators: PCF, Kubernetes, ECS (autoscaling, pod health, scheduling issues)
• Networking: Service-to-service hops, TLS overhead, DNS, routing, load balancer configs (F5, Nginx, ALB/NLB), service mesh performance
• Storage: Latency, IOPS constraints, distributed file system behavior
• Caching & Middleware: Redis, Hazelcast, NATS, Kafka, RabbitMQ configuration and throughput tuning
• Databases: Connection pool tuning, slow queries, indexing, replication lag
• Cloud Layer: AWS compute/storage/network performance, regional latency, cross-cloud traffic patterns
About Saransh
Sourced by ZipRecruiter
Industry
It services
Company size
51 - 200 Employees
Headquarters location
Princeton, NJ, US