Principal Engineer, DevEx

It takes powerful technology to connect our brands and partners with an audience of hundreds of millions of people. Whether you’re looking to write mobile app code, engineer the servers behind our massive ad tech stacks, or develop algorithms to help us process trillions of data points a day, what you do here will have a huge impact on our business—and the world. A Little About Us The Central Tech Developer Experience (DX) team builds and operates the core platform infrastructure that powers software delivery across Yahoo. We own the overarching CI/CD ecosystem, artifact management, deployment engines (ArgoCD GitOps), and automated developer tooling. Operating with a product-first mindset, our squad defines enterprise golden paths, lowers developer friction, and architects agentic AI automation pipelines to eliminate operational toil at scale for thousands of engineers. Responsibilities Platform Architecture & Golden Paths: Lead the end-to-end design and rollout of modern developer platform initiatives across CI/CD, artifact repositories (Artifactory), release management, and GitOps deployments (ArgoCD). Agentic AI & Workflow Automation: Architect and deploy production-grade agentic AI systems (utilizing tools such as Anthropic Claude via AWS Bedrock) that automatically generate, migrate, validate, and maintain complex platform configurations and deployment manifests at scale. AI Evaluation & Guardrails: Establish rigorous evaluation frameworks, regression testing loops, correctness verification engines, and policy guardrails to ensure AI-generated developer configurations operate safely on production infrastructure. Governance & Enterprise Standards: Define enterprise paved-road templates, reusable workflows, and CI compute standards that scale across the organization without creating friction for product engineering teams. AI-Augmented DX Enablement: Drive developer productivity across Yahoo by establishing AI-assisted code generation benchmarks, automated pull-request checks via GitHub Copilot, and intelligent self-service developer portals. Infrastructure & Security Alignment: Partner closely with Infrastructure, Security, and Compliance teams to embed security and policy enforcement directly into CI/CD pipelines and deployment automation. Technical Leadership & Mentorship: Chair technical design reviews, serve as the primary escalation point for complex platform problems, and mentor senior engineers across Central Tech to elevate platform architecture standards. Product-Minded Platform Management: Treat platform initiatives as internal products—measuring adoption velocity, pipeline reliability, time-to-green metrics, and developer satisfaction to drive continuous iteration. Basic Qualifications Bachelor’s degree in Computer Science, Software Engineering, or a related technical discipline. 8+ years of professional software engineering experience, with a proven track record of building production-quality internal developer platforms, platform tooling, or CI/CD ecosystems at scale (IC5 level). Hands-on experience architecting, building, and operating production LLM or agentic AI automation workflows with strict correctness guardrails and evaluation loops. Proficiency with AI-assisted engineering and automated development tools (e.g., Anthropic Claude via Bedrock, GitHub Copilot Enterprise). Deep technical expertise in modern CI/CD architecture, pipeline design, artifact management (e.g., Artifactory), and GitOps-based deployment systems (e.g., ArgoCD). Demonstrated experience acting as a technical anchor, setting architectural direction, and driving cross-team alignment across complex engineering domains. Strong technical writing skills with a track record of authoring clear architecture RFCs, developer documentation, and enterprise templates. Preferred Qualifications Master’s degree in Computer Science or Software Engineering. Experience leading company-wide GitOps migrations (ArgoCD), including repository structuring, promotion workflows across environments, and secrets management. Experience designing custom evaluation frameworks for AI agents interacting directly with cloud infrastructure and deployment pipelines. Proven track record of collaborating directly with Security and Compliance stakeholders to encode governance policies directly into automated platform guardrails. Active open-source contributions to developer tooling, CI/CD plugins, or platform engineering frameworks. The material job duties and responsibilities of this role include those listed above as well as adhering to Yahoo policies ; exercising sound judgment ; working effectively, safely and inclusively with others ; exhibiting trustworthiness and meeting expectations ; and safeguarding business operations and brand integrity. At Yahoo, we offer flexible hybrid work options that our employees love! While most roles don’t require regular office attendance, you may occasionally be asked to attend in-person events or team sessions. You’ll always get notice to make arrangements. Your recruiter will let you know if a specific job requires regular attendance at a Yahoo office or facility. If you have any questions about how this applies to the role, just ask the recruiter! Yahoo is proud to be an equal opportunity workplace. All qualified applicants will receive consideration for employment without regard to, and will not be discriminated against based on age, race, gender, color, religion, national origin, sexual orientation, gender identity, veteran status, disability or any other protected category. Yahoo will consider for employment qualified applicants with criminal histories in a manner consistent with applicable law. Yahoo is dedicated to providing an accessible environment for all candidates during the application process and for employees during their employment. If you need accessibility assistance and/or a reasonable accommodation due to a disability, please submit a request via the Accommodation Request Form ( ) or call +1.866.772.3182 . Requests and calls received for non-disability related issues, such as following up on an application, will not receive a response. We believe that a diverse and inclusive workplace strengthens Yahoo and deepens our relationships. When you support everyone to be their best selves, they spark discovery, innovation and creativity. Among other efforts, our 11 employee resource groups (ERGs) enhance a culture of belonging with programs, events and fellowship that help educate, support and create a workplace where all feel welcome. The compensation for this position ranges from $143,625.00 - $299,375.00/yr and will vary depending on factors such as your location, skills and experience.The compensation package may also include incentive compensation opportunities in the form of discretionary annual bonus or commissions. Our comprehensive benefits include healthcare, a great 401k, backup childcare, education stipends and much (much) more. Currently work for Yahoo? Please apply on our internal career site.