Senior Data Engineer (IC5/IC4)
YahooAbout the role
Location: Dublin, Ireland (Hybrid - 2 days/week on-site)
Applicants must have the legal right to work in Ireland at the time of application.
A little about Us
As a global email provider, Yahoo Mail is the ultimate Consumer Inbox with over 220 million monthly active users. We create technology that changes the internet while handling billions of inbound connections per day to manage trillions of messages requiring petabytes of efficient storage. Our vision is to be the best consumer email platform helping users manage the business of their lives. We are currently 100% committed to a native public cloud architecture.
About the team
The Mail Intelligence Org develops intelligent capabilities at scale to uncover interests, reveal habits, and personalize user journeys across the Yahoo ecosystem. We manage billions of messages using advanced backend systems and algorithms, including NLP, GenAI, and ML. Our infrastructure extracts information and integrates diverse data sources to amplify key insights. We seek innovative, entrepreneurial engineers who value high standards, code quality, and world-class architectural expertise.
A lot about YOU
Who YOU Are
AI-Forward Mindset: You view AI as an essential partner in increasing your impact, with a demonstrated commitment to experimenting with emerging tools to accelerate delivery.
Architectural Depth: You possess a strong foundation in computer science and data engineering, with a proven track record of managing complex cloud-native architectures at scale. We are looking for good software engineers who are experts in data.
Technical Mastery: You are highly proficient in
one object oriented programming language (Python / Java preferred),
SQL,
Spark (PySpark / Java Spark preferred)
Architecting, designing and building batch and streaming data pipelines.
Hadoop is a big plus.
Data Integrity Focus: You maintain uncompromising standards for data quality, built data quality frameworks, architect systems that prevent failures before they occur.
Collaborative Architect Mindset: You excel in working across global time zones, providing thought leadership and technical guidance to multidisciplinary project teams.
Your Responsibilities
Make an impact on Y! Mail Intelligence mission: lead the design, build and evolution of data solutions and pipelines that
are foundational to AI/ML-powered personalization and assistive intelligence,
scale to 220+ million monthly active users,
are robust, self-healing, and leverage AI-driven diagnostics to minimize manual recovery efforts.
Automated Data Governance: Establish and implement automated frameworks for data quality and compliance, ensuring integrity across petabyte-scale datasets.
Technical Leadership and Collaboration: Primary technical liaison between Dublin and US-based cross-functional teams to align data strategies and architectural roadmaps.
AI-Driven Efficiency: Proactively identify and automate repetitive engineering tasks by integrating AI tools into the development lifecycle, replacing manual workflows with intelligent automation.
Advanced Performance Optimization: Lead the continuous improvement of data workflows, balancing cost, quality, and speed through automated testing and performance tuning.
Strategic Tradeoff Management: Exercise sophisticated judgment in managing system complexity, exercising an AI-first mindset to solve large-scale data challenges.
Qualifications
Educational Requirement: Bachelor's degree in Computer Science, Data Engineering, or a related field (must have).
Experience:
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