Senior SDET (Software Development Engineer in Test)

Apex Trader Funding is a leading proprietary trading firm specializing in futures trading, and they are seeking a Senior SDET who blends software engineering skills with a passion for building automated testing systems. The role involves designing and evolving automation frameworks, enhancing CI/CD quality gates, and enabling the engineering organization to deliver high-quality software efficiently.

Responsibilities:

• Architect, build, and maintain Playwright-based automation frameworks using TypeScript/Node.js
• Develop reusable fixtures, helpers, abstractions, and test infrastructure
• Implement network mocking/stubbing, service virtualization, API layers, data factories, and contract testing
• Build selector strategies, concurrency models, and fault‑tolerant automation
• Integrate suites into CI/CD with parallelization, retries, flake analysis, and intelligent test selection
• Own quality-related telemetry: traces, screenshots, logs, metrics
• Build quality dashboards tracking stability, coverage, and reliability
• Influence system design for testability
• Build component, integration, and contract testing layers
• Mentor QAEs, STEs, and developers on testing best practices
• Document patterns, tools, and guidelines
• Drive evolution of testing ecosystem

Requirements:

• 5–8+ years in software testing/engineering with senior-level automation experience
• 3+ years designing Playwright automation frameworks
• Strong engineering background: TypeScript/Node.js, async patterns, SOLID principles
• Strong API and network-level understanding
• CI/CD experience with Docker and execution pipelines
• Strong debugging skills across UI, API, and distributed systems
• Contract testing (Pact), schema validation, or service virtualization
• Experience with observability systems (Grafana, Datadog, OpenTelemetry)
• Performance testing (Lighthouse, Playwright Tracing, k6)
• Visual regression tools
• Cloud experience (AWS, Azure, GCP)