Senior Software Engineer - Data

About Yahoo Mail and the Role

Yahoo Mail is a leading consumer email service used by hundreds of millions globally, offering an intuitive and fast platform accessible across devices. Situated in Dublin, Ireland, this role operates in a hybrid setup requiring onsite presence two days per week. Applicants must have legal authorization to work in Ireland.

Yahoo Mail is committed to building state-of-the-art cloud-native consumer email solutions, managing petabytes of data and trillions of messages monthly. Within the Mail Intelligence team, cutting-edge technologies like NLP, generative AI, and machine learning create personalized, insightful user experiences by analyzing massive data streams.

Candidate Profile

• Possesses a forward-thinking attitude towards AI as a catalyst for increased productivity and embraces emerging AI tools to speed up delivery.
• Demonstrates solid expertise in computer science fundamentals and data engineering, experienced in handling complex cloud-based architectures at scale.
• Proficient in at least one object-oriented language (Python or Java preferred), SQL, and Spark (PySpark or Java Spark favored), with additional Hadoop knowledge considered advantageous.
• Maintains rigorous standards for data quality through architectural design and data quality frameworks that prevent failures.
• Experienced in collaborating across global teams providing technical direction and leadership.

Key Responsibilities

• Lead the development and continuous improvement of scalable, resilient data solutions underpinning AI/ML-powered personalization and assistive intelligence for over 220 million monthly active users.
• Design self-healing systems with AI-driven diagnostics to reduce manual interventions.
• Create and implement automated data governance frameworks ensuring compliance and data integrity at petabyte scale.
• Serve as the main technical interface between Dublin and US teams to synchronize strategies and architectural decisions.
• Integrate AI technologies to automate routine engineering tasks, replacing manual workflows and enhancing development efficiency.
• Optimize data pipelines focusing on cost-effectiveness, quality, and speed using automated testing and performance tuning.
• Apply sound engineering judgment to manage system complexity with an AI-first orientation addressing large-scale data challenges.

Required Qualifications

• Bachelor's degree in Computer Science, Data Engineering, or closely related discipline.
• Over eight years of experience in data engineering or large-scale data processing environments.
• Advanced proficiency in public cloud platforms; expertise in Google Cloud Platform is a plus.
• Comprehensive knowledge of big data frameworks for stream and batch processing along with data orchestration tools such as Composer or Airflow.
• Demonstrated use of AI coding assistants and large language models (LLMs) to accelerate software development and enhance system architecture.
• Strong problem-solving skills to deliver innovative, scalable solutions.
• Excellent communication skills for technical influence across international, multidisciplinary teams.

Preferred Qualifications

• Experience with email systems or platforms handling very high messaging volumes.
• Familiarity with DataProc, Dataflow, Composer, and Looker Studio for advanced data visualization.
• Master's degree in a related technical field.

Additional Information

Yahoo is an equal opportunity employer valuing diversity and inclusion, ensuring fair treatment for all applicants regardless of demographic or personal characteristics. The company accommodates candidates and employees needing accessibility support. Flexible hybrid working arrangements are standard, with occasional on-site meetings requiring advance notice.

Compensation ranges from €71,550 to €119,250 annually, based on experience and location, including potential annual bonuses or commissions. Benefits cover health care, pension plans, and customizable packages.