Senior Software Development Engineer in Test (SDET)

About the role

The organization operates a real-time futures trading platform where accuracy in order handling, market-data delivery, and financial calculations is critical to prevent trader losses. It addresses the challenge of ensuring high-quality, reliable trading software by focusing on precise and effective software testing strategies.

The Senior Software Development Engineer in Test (SDET) will lead test automation efforts across the platform. This role is responsible for developing scalable test frameworks, extending AI-assisted testing tools, and collaborating with engineering teams to improve testability and quality standards. The position plays a key role in enhancing the reliability and accuracy of the trading platform by driving effective test coverage and mentoring others.

Responsibilities

• Develop and drive test automation for API, UI, and end-to-end scenarios prioritizing value and efficiency.
• Utilize and improve AI-assisted test-generation tools, applying judgment to validate and refine outputs.
• Build and maintain scalable test frameworks and infrastructure compatible with CI/CD pipelines.
• Collaborate early with product and engineering teams to define testability requirements and quality standards.
• Ensure high-quality test code that is clean, maintainable, and well-documented.
• Manage test suite signal by triaging failures, minimizing flakiness, and making quality metrics visible.
• Identify and address quality gaps, testing weaknesses, and technical debt.
• Mentor engineers and SDETs in automation patterns, AI-assisted workflows, non-functional testing, and quality mindset.

Requirements

• More than 5 years of software testing experience focused on automation and framework development.
• Expert programming skills in TypeScript producing production-quality test code.
• Experience building test automation frameworks from scratch (Playwright preferred).
• Proficiency with AI/LLM-assisted testing tools and the ability to curate generated tests.
• Strong skills in API and real-time testing including RESTful and WebSocket systems.
• Understanding of React/TypeScript front end and C#/.NET backend architecture sufficient for deep testing.
• Experience integrating automated tests into CI/CD pipelines (GitHub Actions).
• Ability to design balanced test strategies considering coverage, execution time, and maintenance.
• Strong debugging skills across frontend, backend, database, and infrastructure.
• Excellent communication skills to advocate quality and influence engineering practices.
• Preferred: Experience in non-functional testing such as performance, load, and resilience.
• Preferred: Familiarity with ArgoCD, Terraform, and Kubernetes.
• Preferred: Background in testing trading, fintech, or low-latency financial systems.
• Preferred: Experience with contract/consumer-driven testing and observability-driven testing.

Pay

Base salary range of $155,000 to $190,000 annually. Eligibility for performance-based bonus as defined by plan terms. Compensation varies based on region, knowledge, skills, and experience.

Benefits

• Seven company-paid holidays and generous family leave.
• Paid time off provided upfront.
• Competitive 401(k) matching.
• Health, dental, and vision insurance for full-time employees.
• Vacation bonus for taking five consecutive days.
• Food and groceries budget.
• Contributions toward health and wellness.