Senior Quality Assurance Tester

Net2Source (N2S); Denver (CO); On-site; USD 90,000 - 120,000; Full time

Job summary

Net2Source (N2S) is seeking a Senior QA Tester to design and execute testing strategies for modern cloud-native applications. The role emphasizes API, event-driven, and performance testing with a strong focus on Node.js-based services.

You will lead testing across distributed systems, ensure CI/CD validation, and monitor quality through integrated tooling. This position is based in Denver, CO, USA and offers a comprehensive QA-focused environment.

Qualifications

• Design and execute comprehensive testing strategies for distributed apps and cloud-native environments.
• Focus on API, event-driven, performance, automation, and infrastructure testing, with emphasis on Node.js services.

Responsibilities

• API & Application Testing
• Performance & Load Testing
• Node.js & Library Testing
• CI/CD Validation
• Monitoring & Distributed Systems Testing

Skills

REST API Testing

QA Automation

Performance testing

Integration testing

Tools

Node.js

Kafka

Redis

DynamoDB

Docker

Kubernetes/EKS

GitLab CI/CD

Datadog APM

Job description

Primary Skills:

• REST API Testing
• QA Automation
• Node.js
• Kafka
• Redis
• DynamoDB
• Docker
• Kubernetes/EKS
• GitLab CI/CD
• Datadog APM
• Performance/Load/Stress Testing
• Integration Testing & Regression Testing

Description of Services

The Senior QA Tester will be responsible for designing and executing comprehensive testing strategies across modern, distributed applications and cloud-native environments. The role focuses heavily on API, event-driven, performance, automation, and infrastructure testing, with a strong emphasis on Node.js-based services.

Key Responsibilities

• API & Application Testing
• Performance & Load Testing
• Node.js & Library Testing
• CI/CD Validation
• Monitoring & Distributed Systems Testing