Senior Backend Engineer; Node.JS, AWS

Position: Senior Backend Engineer (Node.JS, AWS)

Yahoo serves as a trusted guide for hundreds of millions of people globally, helping them achieve their goals online through our portfolio of iconic products. For advertisers, Yahoo Advertising offers omnichannel solutions and powerful data to engage with our brands and deliver results.

About Yahoo

Yahoo is a global media and tech company that connects people to their passions. We reach hundreds of millions of people around the world, bringing them closer to what they love - from finance and sports, to shopping, gaming, and news - with the trusted products, content, and tech that fuel their day. For partners, we provide a full-stack platform that helps businesses amplify growth and drive more meaningful connections across advertising, search, and media.

About

Search

Yahoo Search is one of the most widely scaled applications in the world. We hire world-class engineers to support our ambitious product and platform goals. Our engineers work in a highly collaborative environment with a strong emphasis on technical excellence and innovation. This is a unique opportunity to reimagine the future of Search and reinvent how users find information and accomplish their goals.

To achieve this vision, we're integrating new technology and expanding our infrastructure. This role demands strategic partnership, analytical thinking, exceptional planning and execution skills, ambitious innovation, obsession with quality and user needs, and a passion for solving complex problems. If you're someone who enjoys being part of high-performing teams, this role is for you!

Role Overview

We are seeking a Senior Software Backend Engineer specialized in Node.

JS and AWS to join our Search team and contribute to the innovation and growth of our Search business. In this role, you will build and maintain robust backend systems and full‑stack applications within a cross‑functional product squad, ensuring alignment with business goals, security standards, and regulatory requirements.

Responsibilities

• Develop and maintain backend systems and full‑stack applications within a cross‑functional product squad
• Contribute to the design and implementation of scalable, robust, and maintainable application architecture
• Collaborate closely with product managers, UX/UI designers, engineers, and other stakeholders to understand business requirements and translate them into technical solutions
• Design and implement maintainable APIs using Graph

QL, REST, and HTTP protocols

• Work on performance optimization and troubleshooting of applications to ensure optimal user experience and reliability
• Participate in code reviews and contribute to engineering best practices
• Support the mentoring of junior engineers on the team
• Apply software engineering principles and processes with a focus on continuous improvement

Qualifications

• 5+ years of industry experience working with distributed system, specialized in backend development using NodeJS
• Solid understanding of Graph

QL, REST, HTTP, and API design principles

• Experience with cloud services and infrastructure on platforms such as AWS
• Familiarity with big data and cloud‑based ETL ecosystems, including AWS EMR, Apache Spark, Oozie, and AWS Glue, is a strong plus.
• Database experience with Postgre

SQL/MySQL or similar relational database technologies

• Experience with performance optimization and scalability planning
• Familiarity with CI/CD pipelines and Dev Ops practices
• Strong problem‑solving skills and ability to troubleshoot complex technical issues
• Good understanding of software engineering principles and best practices
• Excellent collaboration and communication skills

Nice to Have

• Familiarity with AI coding tools (e.g., Git Hub Copilot, Claude, and Cursor)
• Experience with front‑end technologies such as React, Next.js, or similar JavaScript frameworks is a plus
• Understanding of security standards and regulatory compliance requirements

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…