> Markdown version of [/jobs/ext/4563836-staff-software-engineer-test-systems-tooling](https://www.wearedevelopers.com/jobs/ext/4563836-staff-software-engineer-test-systems-tooling). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Staff Software Engineer, Test Systems & Tooling - **Company:** Temporal Technologies Inc. - **Location:** Beverly Hills, CA, United States - **Contract:** Permanent contract - **Skills:** Testing (Software), Systems Engineering, Cloud Computing, Code Coverage, Code Review, Programming Tools, Distributed Systems, Load Testing, Reliability Engineering, Software Engineering, System Testing, Strategies of Testing, Performance Testing, System-level Testing, Integration Tests - **Published:** November 4, 2026 - **Apply:** https://www.careerbuilder.com/job-details/staff-software-engineer-test-systems-tooling-beverly-hills-ca--7f7b2336-6296-457f-ab4b-e8d074813b3d ## About the Role Software Engineering, Test Tools, Software Testing, Systems Engineering, Software Engineering, System Test, Machine Tool, Test Tools, Systems Engineering, Production Systems, * Strong software engineering fundamentals and experience building and operating production-quality systems (platforms, infrastructure, developer tooling, or distributed systems). * Demonstrated technical leadership: leading ambiguous, cross-team initiatives; driving alignment; and delivering durable systems that other teams rely on. * Experience designing for observability, debuggability, and operational readiness (metrics, logs, tracing, safe rollouts, and failure analysis). * Comfort working across organizational boundaries-collaborating with Cloud/Infrastructure, Reliability, Release Engineering, and product teams to land outcomes. * Strong written communication skills (design docs, testing strategy proposals, and documentation that scales adoption). Nice to Haves * Experience with chaos engineering, fault injection, workload replay/shadowing, performance testing, or multi-tenant test strategy. * Experience building internal platforms used broadly across an engineering org (paved roads, self-serve environments, shared frameworks). * Familiarity with measuring engineering/system outcomes (e.g., signal quality, coverage gaps closed, incident-to-coverage time, adoption). ## Description Temporal's reliability is foundational to our value proposition, and as more customers run mission-critical workloads on Temporal, we need the ability to validate changes under production-like conditions and realistic failure modes before they reach production. As a Staff Software Engineer on the Test Systems & Tooling team, you will lead technical initiatives that make sophisticated system-level testing practical across Engineering-spanning production-representative environments, workload replay/generation, and repeatable failure-mode testing. You'll build platforms and tooling that enable teams to reproduce and prevent the kinds of issues that only emerge from complex interactions between workload, scale, configuration, and multi-tenant behavior. What You'll Do * Build production-like test environments: Design and evolve tooling that makes it easy for engineers to spin up test cells that resemble production topology, configuration, and behavior, in partnership with Cloud/Infrastructure. * Enable production-representative workloads: Build capabilities for workload generation, multi-tenant testing, stress/load testing, and (where appropriate) traffic replay or replay-like systems to reproduce production behaviors in controlled environments. * Make failure-mode testing repeatable: Create tooling for injecting and validating failure conditions (latency, dependency faults, resource exhaustion, degraded-state recovery, and region-level failure scenarios) so we test them deliberately-not just learn from production. * Drive system-level test coverage: Identify high-impact system-level scenarios that are currently hard to test, and implement (or partner with the right teams to implement) repeatable coverage that's incorporated into continuous and/or release validation. * Build shared frameworks and paved paths: Provide opinionated libraries, harnesses, and patterns that make it easier for product teams to write high-quality system and integration tests consistently. * Raise the technical bar through leadership: Mentor engineers and influence testing strategy across the org through design docs, code reviews, and cross-team collaboration. * Partner across Engineering: Work closely with Reliability and Release Engineering to turn incident learnings into durable pre-production test coverage and to integrate validations into the release pipeline.