Senior ML Engineer - Search Systems & Retrieval

Etsy; Dublin; Hybrid; EUR 98,000 - 132,000; Full time

Benefits offered by this job

Equity

Annual bonus

Competitive benefits

Job summary

Etsy in Dublin is looking for a Senior Software Engineer I, Machine Learning to join the Search Systems team. You will help build the core retrieval and indexing infrastructure powering fast, reliable search for millions of Etsy buyers and sellers.

You will report to the Engineering Manager and work on ML-enabled ranking, low-latency systems, and scalable backends, collaborating with applied scientists, Data Platform, and product engineers to unlock new capabilities.

Qualifications

• Experience building production ML systems with real-time or near real-time complexity.
• Strong coding skills to deliver high-quality production code.
• Familiarity with retrieval and ranking techniques, neural retrieval, and transformer-based models.

Responsibilities

• Design, build, and maintain search backend systems and infrastructure.
• Collaborate with ML modeling teams to productionize retrieval and ranking models.
• Ensure data pipelines, index health, and performance; optimize latency and throughput.

Skills

Production ML

Python

Scala

Java

Caching

Performance

Low latency

Agentic AI

Neural retrieval

Semantic search

Transformer models

Tools

Python

Scala

Java

Job description

Etsy in Dublin is looking for a Senior Software Engineer I, Machine Learning to join the Search Systems team. You will help build the core retrieval and indexing infrastructure powering fast, reliable search for millions of Etsy buyers and sellers.

You will report to the Engineering Manager and work on ML-enabled ranking, low-latency systems, and scalable backends, collaborating with applied scientists, Data Platform, and product engineers to unlock new capabilities.