Senior Search Engineer - Search and Browse Core (All genders)

Description

The Search Retrieval Team runs the core search engine behind product and content discovery. The engine serves over 62 million active customers across 29 markets.

The search system holds tens of millions of searchable items spread across several clusters and hundreds of indices. Each item has roughly 4 to 10 embeddings for semantic understanding, and the system also connects to LLMs for query understanding and lexical search.

The team's goal is a search platform that is intelligent, scalable and reliable. The work involves distributed systems at very large scale.

Responsibilities

• Lead the design and build of the next generation of AI-driven search, adding Neural Search on top of the Elasticsearch platform.
• Modernize and scale the real-time ingestion systems, using Kafka and Flink, so they can handle millions of updates.
• Build core platform features that let teams across the company create personalized discovery experiences for customers.
• Lead platform-wide infrastructure work, such as consolidating multi-lingual search indices, moving core services to reduce critical risk, and preparing systems for high-traffic events like Cyber Week.

Requirements

• Extensive experience building large-scale search engines, preferably for e-commerce. Experience with Lucene, OpenSearch, Solr or other distributed search systems is highly valued, even though the stack is built on Elasticsearch.
• Proven experience designing and building high-throughput data ingestion pipelines with Kafka, Flink or equivalent stream-processing frameworks.
• High proficiency in a JVM language (Java, Kotlin or Scala), with a deep understanding of distributed systems, concurrency and performance optimization.
• Excellent communication skills. You work well with engineers, applied scientists and product partners, and you can turn complex product requirements into reliable, reusable platform capabilities.

Conditions

The company does not discriminate based on gender identity, sexual orientation, personal expression, ethnicity, religious belief or disability status. Applicants may leave out their photo, age or marital status, and are assessed only on qualifications and merit.

Tell the team about any accommodations you need during the hiring process.

Benefits

• Employee shares program.
• 40% off fashion and beauty products sold and shipped by the company, 30% off the company Lounge, and discounts from external partners.
• 2 paid volunteering days a year.
• 27 days of vacation a year (for the company SE).
• Relocation assistance available, subject to prior agreement.
• Family services, including counseling and support.
• Health and wellbeing options, including Gympass.
• Mental health support and coaching available.
• Ask your Talent Acquisition Partner for more details on the benefits.