Sdet Jobs in Atlanta, GA

#WeAreTradeStation

Who We Are :

TradeStation is the home of those born to trade. As an online brokerage firm and trading ecosystem, we are focused on delivering the ultimate trading experience for active traders and institutions. We continuously push the boundaries of what's possible, encourage out-of-the-box thinking, and relentlessly search for like-minded innovators.

At TradeStation, we are building an AI-First culture. We expect team members to embrace AI as a core part of their daily workflow, whether that’s using AI to accelerate development, enhance decision-making, improve client outcomes, or streamline internal processes. We hire, grow, and promote people who can harness AI responsibly and creatively. We treat AI as a partner in problem-solving, not just a tool; following our governance standards to ensure AI is used ethically, securely, and transparently. If you join us, you’re joining a culture where  AI is how we work .

Are you ready to make yourself at home?

What We Are Looking For :

We’re seeking a Principal SDET to drive the development of high-performance automated test frameworks for our OXS platform — TradeStation’s next-generation order execution system. This role is for a senior technical expert who thrives on breaking complex distributed systems, designing comprehensive test automation, and ensuring quality at scale. You’ll collaborate closely with development and DevOps teams to ensure our test infrastructure is developer-friendly, deterministic, and dependency-free, capable of running both locally and in CI / CD (GitLab) pipelines.

What You’ll Be Doing :

• Lead design and development of scalable automated test frameworks for validating microservices, streaming pipelines, and event-driven systems
• Build mocking and simulation frameworks that emulate complex upstream services and dependencies (Kafka, market data, order routing, etc.)
• Integrate test execution seamlessly with GitLab CI / CD pipelines, enabling full automation and parallelized test runs
• Enable developers to run complete regression suites locally, independent of shared environments
• Collaborate with developers and SDETs to ensure new functionality is covered by comprehensive test suites (functional, regression, performance, reliability)
• Contribute to framework extensibility and promote reusable testing libraries
• Conduct root cause analysis for test failures and production issues, identifying system fragility and design risks
• Raise risks early to engineering leadership and influence design decisions to improve quality and reliability
• Partner with DevOps on test environment automation, data provisioning, and result visualization
• Mentor team members in advanced testing techniques, mock-based architecture validation, and performance measurement

The Skills You Bring :

Minimum Qualifications :

Desired Qualifications :

TradeStation provides equal employment opportunities to current and prospective employees, without regard to race, color, religion, sex, national origin, ancestry, sexual orientation, age, pregnancy, disability, handicap, citizenship, veteran or marital status, or any other legally recognized status entitled to protection under federal, state, or local anti-discrimination laws.

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