Senior Backend QA Automation Engineer (Node.js & Kafka)

Job Description

• 5–10 years of QA/testing experience in backend or platform engineering
• Hands-on experience with performance and load testing tools (k6, Artillery, JMeter, Gatling, or Locust)
• Ability to analyze performance metrics — P50/P95/P99 latencies, throughput, error rates, CPU/memory utilization
• Strong experience with API testing tools (Postman, REST clients, curl, supertest)
• Experience testing event-driven architectures (Kafka, message queues)
• Familiarity with Docker, Docker Compose, and Kubernetes-based deployments
• Experience with CI/CD pipelines (GitLab CI, Jenkins, or equivalent)
• Comfortable reading and writing TypeScript/JavaScript
• Experience with git workflows and branching strategies

Job Responsibilities

• Design and execute test plans for RESTful APIs, Kafka message processors, and Redis-based job schedulers
• Build and maintain automated test suites (unit, integration, functional, end-to-end)
• Design and execute performance and load tests to validate system behavior under peak traffic, sustained load, and stress conditions
• Establish performance baselines, define SLAs (throughput, latency, error rates), and track regressions across releases
• Conduct soak tests to identify memory leaks, connection pool exhaustion, and resource degradation over time
• Validate Node.js library upgrades and dependency changes across the shared library ecosystem (lantern-utils, lantern-nest-utils, lantern-logger, lantern-requester, lantern-scheduler)
• Test containerized services in Docker and Kubernetes (EKS) environments
• Validate CI/CD pipelines (GitLab CI) — ensure builds, tests, and deployments function correctly
• Perform regression testing for Node.js runtime upgrades (e.g., Node 18 → Node 24 migrations)
• Collaborate with developers to define acceptance criteria and testability requirements
• Monitor and validate application performance using Datadog APM (dd-trace)
• Test Redis cluster interactions, DynamoDB operations, and Kafka consumer/producer flows
• Identify, document, and track defects through resolution

Education: Bachelor's or Master’s degree in Computer Science, Computer or Electrical Engineering, Mathematics, or a related field.

GlobalLogic estimates the starting pay range for this role to be performed in Denver, CO to be $115,000 to $120,000 and reflects base salary only. This pay range is provided as a good-faith estimate, and the amount offered may be higher or lower. GlobalLogic takes many factors into consideration in making an offer, including candidate qualifications, work experience, operational needs, travel and onsite requirements, internal peer equity, prevailing wage, responsibilities, and other market and business considerations.