Senior Software Development Engineer in Test, SDET

Job not on LinkedIn

🔥 12 hours ago

🇺🇸 United States – Remote

💵 $155k - $190k / year

⏰ Full Time

🟠 Senior

⚙️ Software Development Engineer in Test (SDET)

👻 Ghost score 0%

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Topstep

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2012

💸 Finance

💳 Fintech

🤝 B2B

Finance • Fintech • B2B

Topstep is a company that provides a platform for futures traders to develop their skills and potentially earn funding through their unique Trading Combine program. The program allows traders to demonstrate their abilities in a simulated trading environment, and those who meet the criteria can unlock a funded trading account within a short period. With over 10,000 traders and support features like coaching, community engagement, and educational resources, Topstep aims to help individuals become successful traders while minimizing their financial risk.

📋 Description

• Drive test automation across API, UI, and end-to-end testing • Use and extend AI-assisted test-generation tooling to produce and maintain broad, verification-focused coverage • Build and maintain scalable test frameworks and CI/CD infrastructure for real-time paths, including order lifecycle, WebSocket market-data streams, and financially material calculations • Partner with product and engineering teams to define testability requirements and quality standards early • Lead by example on clean, maintainable, and well-documented test code • Triage test-suite failures quickly, reduce flakiness, and make results and quality metrics visible and trustworthy • Identify and drive resolution of quality gaps, systemic testing weaknesses, and test-related technical debt • Mentor engineers and SDETs on automation patterns, AI-assisted testing workflows, non-functional testing, and quality-first practices

🎯 Requirements

• 5+ years in software testing with a strong focus on test automation and framework development • Expert programming skills and production-quality test code in TypeScript • Hands-on experience building test automation frameworks from scratch; Playwright preferred, with Cypress, Selenium, or similar also relevant • Experience using AI/LLM-assisted tooling for test creation and verification, with judgment to validate and curate generated output • Strong API and real-time testing experience with RESTful services and WebSocket/streaming systems • Solid grasp of React/TypeScript front end and C#/.NET backend services, databases, and service architecture • CI/CD experience integrating automated tests into deployment pipelines, including GitHub Actions • Ability to design test strategies balancing coverage, execution time, and maintenance overhead • Strong debugging across frontend, backend, database, and infrastructure • Excellent communication and ability to advocate for quality and influence engineering practice • Non-functional testing experience in performance, load, and resilience preferred • Familiarity with ArgoCD, Terraform, and Kubernetes preferred • Experience testing trading, fintech, or other low-latency/financially sensitive systems preferred • Contract/consumer-driven testing between services preferred • Observability-driven testing using logs, metrics, and traces preferred

🏖️ Benefits

• Seven Company-paid Holidays and generous Family Leave • Paid time off is front-loaded • Competitive 401(k) matching • Health, dental, and vision insurance for full-time employees • Bonus for taking 5 consecutive vacation days • Food and groceries budget • Contributions towards health and wellness • Performance-based bonus

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