Software Development Engineer , DynamoDB Index, Search and Storage

Software Development Engineer DynamoDB Search and Indexing

Amazon DynamoDB is a serverless distributed NoSQL database that delivers single-digit millisecond performance at virtually any scale. The DynamoDB Search and Indexing organization is building native search capabilities that allow customers to perform vector similarity search full-text search and hybrid search across their operational data.

We are looking for a Senior Software Development Engineer to help design and build the distributed indexing retrieval and ranking infrastructure behind these capabilities. You will work on problems at the intersection of databases distributed systems information retrieval and machine-learning infrastructure.

The role includes designing vector and text-indexing architectures that operate across partitioned datasets; integrating approximate nearest-neighbor algorithms and inverted indexes with DynamoDBs storage and query systems; and building hybrid retrieval that combines semantic similarity lexical relevance and structured filtering.

You will help determine how search indexes are created maintained rebuilt rebalanced and recovered while the underlying DynamoDB data continues to change. You will also shape query planning distributed execution relevance ranking and result aggregation while delivering predictable performance across latency throughput recall freshness availability and cost.

This is an opportunity to shape new DynamoDB capabilities from foundational architecture through customer launch and operation at DynamoDB scale.

Key job responsibilities

* Design and implement distributed vector full-text and hybrid-search capabilities for DynamoDB.
* Build vector-indexing and approximate nearest-neighbor retrieval mechanisms for high-dimensional embeddings.
* Develop full-text indexing and retrieval capabilities including tokenization text analysis inverted indexes relevance scoring and phrase or term-based search.
* Build hybrid retrieval and ranking that combines vector similarity lexical relevance and structured attribute filters.
* Evaluate ranking and result-fusion techniques for combining semantic and lexical results including score normalization rank fusion and reranking.
* Design distributed query execution including partition selection query fan-out local retrieval top-k result merging filtering and aggregation.
* Build index lifecycle mechanisms covering creation backfill incremental updates compaction schema or configuration changes rebalancing recovery and deletion.
* Ensure that indexes remain sufficiently synchronized with changes to the underlying DynamoDB data and define clear search-freshness and consistency semantics.
* Integrate search indexes with DynamoDBs distributed storage partitioning replication and query-processing systems.
* Optimize tradeoffs among search quality recall relevance query latency ingestion throughput index freshness memory usage storage amplif

About the team
AWS values diverse experiences. Even if you do not meet all of the preferred qualifications and skills listed in the job description we encourage candidates to apply. If your career is just starting hasnt followed a traditional path or includes alternative experiences dont let it stop you from applying.

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- 3 years of non-internship professional software development experience
- 2 years of non-internship design or architecture (design patterns reliability and scaling) of new and existing systems experience
- 1 years of software development engineer or related occupational experience
- 1 years of designing and developing large-scale multi-tiered multi-threaded embedded or distributed software applications tools systems and services using: C# C Java or Perl experience
- 1 years of Object Oriented Design experience
- Bachelors degree or foreign equivalent in Computer Science Engineering Mathematics or a related field
- Experience programming with at least one software programming language

- 3 years of full software development life cycle including coding standards code reviews source control management build processes testing and operations experience
- Bachelors degree in computer science or equivalent

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status disability or other legally protected status.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process including support for the interview or onboarding process please visit for more information. If the country/region youre applying in isnt listed please contact your Recruiting Partner.

The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience qualifications and location. Amazon also offers comprehensive benefits including health insurance (medical dental vision prescription Basic Life & AD&D insurance and option for Supplemental life plans EAP Mental Health Support Medical Advice Line Flexible Spending Accounts Adoption and Surrogacy Reimbursement coverage) 401(k) matching paid time off and parental leave. Learn more about our benefits at WA Seattle - 143700.00 - 194400.00 USD annually

Required Experience:

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