Senior Hadoop Software Engineer

  • Full Time
  • Dublin
eBay

We connect people and build communities to create economic opportunity for all.

At eBay, we’re not just a global ecommerce platform — we’re reshaping how people buy and sell around the world. With a presence in over 190 markets, we empower millions of users to participate in a dynamic, evolving marketplace. We’re driven by innovation and a passion for redefining the future of ecommerce for our vibrant community of enthusiasts.

We put our customers first, celebrate authenticity, welcome bold thinking, and encourage everyone to be their true selves at work. Together, we’re committed to building a sustainable future — for our users, our company, and the planet.

Join a team of innovators and problem-solvers who are helping people connect, build communities, and unlock economic opportunity globally.

About the Team & Role

The Hadoop team is central to eBay’s data infrastructure. It ensures scalable, reliable systems that power our data processing needs and supports our mission to use data insights to drive smarter decisions and elevate the customer experience.

As part of this team, your work will focus on:

  • Scope: Managing and improving Hadoop-based systems to handle eBay’s massive data scale, developing tools for internal and external users, and integrating these systems with other technologies.

  • Impact: Helping shape eBay’s data strategy by boosting performance, optimizing processing pipelines, and driving tech innovation company-wide.

What You’ll Do

  • Ensure System Availability & Scalability
    Lead optimization efforts for Hadoop systems to ensure they remain highly available, efficient, and ready to scale with growing data demands. You’ll play a key role in maintaining uptime and supporting long-term business growth.

  • Lead High-Impact Data Projects
    Drive initiatives that improve eBay’s capacity to manage and analyze massive datasets. Your work will enhance system speed and reliability — core components of our data infrastructure.

  • Build Innovative Tools
    Develop user-facing tools that enhance usability and operational efficiency. These tools will help teams across eBay better access and utilize data insights.

  • Improve System Integration
    Ensure Hadoop systems work seamlessly with other platforms, supporting a unified data ecosystem. This will reduce manual work, increase collaboration, and enable data-driven decisions across teams.

What You’ll Bring

  • A Bachelor’s degree in Computer Science, IT, or a related discipline

  • Solid programming experience in Java, Scala, or Python, with a strong grasp of algorithms and data structures for writing efficient, high-performing code

  • Familiarity with Linux/Unix environments, including shell scripting and system operations

  • Understanding of networking concepts, as Hadoop systems are distributed across multiple machines

  • Strong analytical skills for solving complex problems in distributed systems and optimizing performance

Bonus: Experience with big data tools and open-source contributions in the Hadoop ecosystem is a plus.

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