Fullstack Software Dev Engineer II

Yahoo, with a strong foundation of 900 million users monthly, is in the midst of a renaissance—backed by substantial investment to drive meaningful, long-term growth, led by great products. Are you up for the challenge of writing a chapter in one of the biggest consumer product success stories in history? This won’t be easy, but if you’re motivated by huge opportunities, backed by an organization ready to invest in bold initiatives, and eager to build at scale, Yahoo is the place for you.

 Identity platforms at Yahoo provide modern, secure identity offerings for consumers and businesses interacting with Yahoo systems. These platforms operate at massive scale, serving hundreds of millions of users every day, and power critical authentication, authorization, and account management capabilities across Yahoo products.

As part of Yahoo’s transition to an AI-First engineering model, teams increasingly leverage AI-assisted development environments (e.g., Cursor, Claude Code, GitHub Copilot) combined with Spec-Driven Development (SDD) workflows, to accelerate delivery while maintaining high engineering quality.

We are looking for a Full Stack Software Dev Engineer II to join the Identity organization. In this role, you will work across the stack to build secure, scalable, and user-friendly authentication and account management experiences that serve hundreds of millions of users globally.

A core expectation is the ability to collaborate effectively with AI systems—using structured specs and context to guide high-quality implementation. 

• Design, build, and operate scalable full stack systems (ReactJS, TypeScript, Java/Node.JS).

• Own features end-to-end: requirements → design → implementation → production.

• Work in an AI-first workflow, using AI tools with SDD to generate and validate code.

• Improve system reliability, performance, and security; debug production issues.

• Continuously improve how AI tools are used across the team, sharing effective prompting strategies, workflows, and best practices.

• BE / BS in Computer Science or equivalent with 4–6 years of professional full-stack software engineering experience.

• Strong hands-on experience with Java for backend development.

• Experience building full-stack application using React.js, Node.js, JavaScript or TypeScript, and frameworks such as Next.js 

• Strong fundamentals in system design,APIs, distributed systems and web technologies.

• Proven ability to independently deliver complex features end-to-end.

• Experience with testing frameworks and production-grade engineering practices.

• Hands-on experience using AI-assisted development tools effectively.

• Demonstrated experience using AI-assisted developer tools (e.g., Cursor, Claude Code, GitHub Copilot) in day-to-day engineering workflows.

• Experience with identity/auth systems (OAuth, OIDC, SAML).

• Cloud platform experience (GCP, AWS, or Azure).

• Familiarity with CI/CD, observability, and performance optimization.

• Experience with spec-driven development or structured engineering workflows.

• Exposure to accessibility, internationalization, or large-scale consumer systems.

• Consistently deliver high-quality, scalable systems with strong ownership.

• Use AI to significantly accelerate development without compromising quality.

• Contribute to architecture and raise engineering standards across the team.

• Improve team productivity through better use of AI and structured workflows.

Important notes for your attention

Applications: 

All applicants must apply for Yahoo openings direct with Yahoo.  We do not authorize any external agencies in India to handle candidates’ applications.   No agency nor individual may charge candidates for any efforts they make on an applicant’s behalf in the hiring process.  

Our internal recruiters will reach out to you directly to discuss the next steps if we determine that the role is a good fit for you.  Selected candidates will go through formal interviews and assessments arranged by Yahoo direct.  

Offer Distributions: 

Our electronic offer letter and documents will be issued through our system for e-signatures, not via individual emails.

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 (www.yahooinc.com/careers/contact-us.html) 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.

Yahoo has a high degree of flexibility around employee location and hybrid working. In fact, our flexible-hybrid approach to work is one of the things our employees rave about. Most roles don’t require specific regular patterns of in-person office attendance. If you join Yahoo, you may be asked to attend (or travel to attend) on-site work sessions, team-building, or other in-person events. When these occur, you’ll be given notice to make arrangements. 

If you’re curious about how this factors into this role, please discuss with the recruiter.

Currently work for Yahoo? Please apply on our internal career site.