Senior Full-Stack Engineer, Yahoo Search

About Search

Yahoo Search is one of the most highly scaled applications on the planet, serving millions of users daily. We hire world‑class engineers to reimagine the future of search through high-performance infrastructure and innovative user experiences. Our team operates in a highly collaborative environment where technical excellence meets rapid experimentation. As we integrate next‑generation AI technologies into our core platform, we are looking for leaders who can help us reinvent how the world finds information.

As a Senior Full‑Stack Software Engineer, you are a technical leader who thrives at the intersection of architectural design and high‑velocity execution. You don’t just write code; you design scalable systems and oversee the technical health of major squad‑level solutions. You are an AI‑forward engineer who proactively identifies ways to augment the development lifecycle—improving speed, quality, and security through automation and intelligent tooling.

You are a mentor, a strategic partner to Product and Design, and a champion for engineering best practices in a distributed, cloud‑ready environment.

• Lead the design and architectural direction of complex, full‑stack search features, with a focus on front‑end work, moving from task execution to high‑level system optimization.
• Drive engineering velocity by integrating AI‑assisted development tools (e.g., Git Hub Copilot, Cursor) into the squad’s daily workflow to accelerate code generation and unit testing.
• Perform AI‑augmented code reviews, serving as the final validator for quality, performance, and security while leveraging LLMs to identify edge cases.
• Design and develop scalable, maintainable, cloud‑native backend services and APIs that power high‑concurrency search interfaces.
• Proactively identify and implement AI‑driven efficiencies in day‑to‑day work, replacing repetitive manual tasks with automated or AI‑assisted workflows.
• Collaborate with UX Designers and Product Managers to translate ambitious product strategies into measurable technical results.
• Exercise critical judgment in validating AI‑generated outputs (code, documentation, or diagnostics) to ensure they meet Yahoo’s rigorous standards for accuracy and security.
• Drive the adoption of industry‑standard UI best practices, including accessibility (A11y), internationalization (i18n), and performance optimization for global scale.
• Mentor junior engineers on adopting an AI‑augmented mindset, focusing on prompt engineering for productivity and high‑level architectural thinking.

• BS in Computer Science or equivalent technical degree.
• 7+ years of hands‑on experience in full‑stack web application development, with a proven track record of leading complex features at scale.
• Advanced expertise in modern Java Script frameworks including React
  , Next.js and Node.js environments.
• Strong proficiency in using AI‑powered development environments (Copilot, Cursor, etc.) to optimize software delivery.
• In-depth knowledge of CI/CD, automated testing frameworks (Jest, Cypress), and cloud services (
  AWS
  /
  GCP
  ).
• Experience validating and refining AI‑generated code and a focus on responsible AI usage in production environments.
• Exceptional communication skills with the ability to influence technical roadmaps across a squad.
• A commitment to continuous learning and a demonstrated interest in staying current with emerging AI tools and software engineering methodologies.

• Experience building LLM‑integrated user interfaces or AI‑driven search features.
• Advanced knowledge of web performance metrics (Core Web Vitals) and SEO optimization.
• Experience leading small project teams or specific technical work streams within a larger organization.

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…