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# Sr Software Engineer (SDE-III), Core Search

- **Company:** Amazon.com, Inc.
- **Location:** Palo Alto, CA, United States
- **Experience:** Expert
- **Salary:** $193,300.0 - $261,500.0
- **Contract:** Internship / Graduate position
- **Skills:** Apache Lucene, Code Review, Computer Programming, Software Design Patterns, Distributed Systems, Machine Learning, Open Source Technology, Search Technologies, Software Engineering, Large Language Models, Gpu Programming, Information Technology, Search Engines, Build Process, Software Coding, Software Version Control
- **Published:** July 19, 2026
- **Apply:** https://www.juju.com/job/00000000ghwx7f

## About the Role

Ideal candidates are expected to have a background in distributed systems and machine learning infrastructure. Strong candidates will have knowledge of LLM fundamentals and some experience in GPU programming., 8+ years of programming with at least one software programming language experience

 - 8+ years of non-internship professional software development experience

 - 5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience

 - Experience as a mentor, tech lead or leading an engineering team

 - Bachelor's degree in computer science or equivalent

Preferred Qualifications

 - 5+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience

 - Master's degree in computer science or equivalent

## Description

Understand and improve state-of-the-art in Vector Search

 - Optimize inference for semantic matching and ranking models

 - Improve search engine efficiency to reduce infrastructure cost

 - Contribute to open source Lucene and collaborate with internal and external technology leaders.

 - Participate in oncall and raise the bar on operational excellence


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