Principal Software Engineering - Test System Modernization

this posting is not for an existing vacancy within the organization and is open to new applications.

as part of the application process, artificial intelligence will be used in the hiring process for this role.

hybrid: this role is categorized as hybrid. This means the successful candidate is expected to report to markham or oshawa office three times per week, at minimum.

general motors is seeking a principal/staff software engineer to shape and scale the engineering platforms that build, test, integrate, validate, and deliver embedded software for software‑defined vehicles. This role is for a hands‑on technical leader who can turn ambiguous, cross‑team problems into durable architecture, practical standards, and measurable improvements in engineering effectiveness, release confidence, and product quality. The successful candidate will lead a major capability across multiple teams, influence technical direction beyond their immediate organization, and connect software, tooling, infrastructure, test, and release activities into a coherent engineering system.

• be a critical leader of software engineering productivity and effectiveness.
• identify opportunities, strategies, process improvements, and lead the change.
• be hands‑on by leading high impact efforts.
• be a strong communicator, coach, and mentor.
• analyze unusual and difficult problems effectively.
• ability to connect multiple initiatives together to deliver higher value.
• visualize required innovation, learning and simplification in this space and transition the team to execute what is required to achieve.
• maintain command skills and empathy at the same time.
• lead the modernization of a large-scale embedded software test system.

• define the architecture and roadmap for standardized test execution, configuration and variation management, traceability, quality gates, regression selection, and results reporting.
• establish change‑impact analysis and risk‑based regression strategies using gears, pure variants, or equivalent tools to determine test applicability and optimize re‑testing.
• standardize test‑result schemas, metadata, diagnostics, and artifacts; enable storage in databricks for analytics, trend analysis, data mining, and reporting.
• develop apis and integrations connecting test execution, test management, issue tracking, failure triage, and diagnostic tools.
• improve test robustness, failure triage, execution speed, and deployment efficiency across ci/cd pipelines and physical and virtual test environments.

• faster, more reliable test deployment and execution.
• more efficient regression testing through accurate change‑impact analysis.
• standardized, traceable test results accessible through databricks and documented apis.
• faster failure identification, triage, and resolution.
• clear test applicability across software, hardware, configuration, and platform variants.

bachelor's degree in computer science, computer engineering, electrical engineering, software engineering, systems engineering or a related technical field; or equivalent practical experience. Typically, 10+ and 15+ more years experience validating software systems, including substantial experience leading architecture across organizations. Deep understanding of software architecture for real time systems. Experience shipping high quality safety critical products. Experience architecting large‑scale ci/cd, embedded test automation, and build‑to‑test pipelines.

Expertise in variation management, configuration comparison, change‑impact analysis, and risk‑based regression testing. Experience with test‑result data modeling, databricks,…