Senior Software Engineer, Test (Org Modeling)

ServiceTitan is seeking a Senior Software Engineer, Test to elevate the quality and reliability of its software. The role focuses on engineering end-to-end quality systems, driving layered testing and performance practices, integrating automated tests into CI/CD, diagnosing failures, and collaborating with cross-functional teams to improve product quality.

Responsibilities:

• Design and build quality systems end-to-end — not just add tests, but architect the framework, tooling, and processes that let the team ship with confidence
• Build quality layer by layer: Set the vision of the layers (unit, integration, E2E, Load/Performance, Security, Chaos testing, etc) and guide the team through it by owning several layers of the guardrails
• Be an active quality partner in your squad — engage in squad channels, cross team communication, take incoming asks, troubleshoot issues, and drive them to resolution; be the quality voice in standups, planning, and code reviews
• Drive performance and load testing — collaborate with engineers on load test design and execution, build dashboards to monitor results, and establish ongoing monitoring practices
• Be the champion of applying AI tooling in your everyday work as well as the work of your partners to have a cross functional team impact
• Integrate automated tests into CI/CD to enable continuous testing and fast feedback loops from commit to production
• Monitor test results and failures — diagnose root causes, track defects, work with engineering teams and stakeholders to resolve issues quickly, and improve signal quality over time
• Champion contract and chaos testing — bring familiarity with contract testing patterns and chaos/resilience testing to identify systemic weaknesses before they reach production
• Facilitate continuous process improvement — evaluate and evolve testing tools, methodologies, and reporting practices so the quality system stays relevant as the product grows
• Collaborate on test planning with Engineers, Product Managers, and Designers to improve coverage and ensure test cases reflect real user scenarios

Requirements:

• Systems thinking about quality — you approach testing as an engineering discipline, building reliable, maintainable, layered systems rather than one-off test scripts
• Broad testing expertise across multiple layers: functional, integration, contract, performance/load, chaos, and security testing — you don't need to own all of these deeply, but you understand each layer and can set the visions, contribute to and guide work across all of them
• Technical depth — you can read and write code fluently; you're not tied to a single language or framework and can adapt to the stack at hand
• Performance and load testing experience — you know how to design meaningful load tests, instrument results, build dashboards, and monitor performance trends over time
• AI tooling proficiency — you actively use AI tools to improve your own workflow and help the team automate processes more effectively
• Troubleshooting and tool navigation — you're comfortable digging into unfamiliar systems, reading logs, using observability tools, and getting to the root of complex failures
• CI/CD and DevOps fluency — experience integrating test automation into pipelines (GitHub Actions, Teamcity, Jenkins, or similar) and a solid understanding of deployment processes
• SQL and data querying — good working knowledge of SQL (PostgreSQL and/or MS-SQL preferred) for validating backend state and debugging data-layer issues
• Collaboration and squad presence — you're responsive, engaged, and take ownership of quality asks from your team without needing to be asked twice
• Experience with API and contract testing — familiarity with testing integrations across service boundaries, including third-party APIs
• Version control and code hygiene — strong Git practices, clean and reusable test code, and a habit of treating test code with the same care as production code
• Self-motivated, detail-oriented, and comfortable operating and driving in a fast-paced environment with periods of ambiguity
• Experience with object-oriented languages (C#, Java, Python, or similar) is a strong plus