Virtusa Corporation

Machine Learning Engineer

Virtusa Corporation$112K — $135K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 2-5 years of relevant experience in machine learning or data retrieval systems.
  • Strong understanding of vectorization models such as BGE, Ada, or Cohere.
  • Experience managing vector databases including Pinecone, Weaviate, Milvus, or pgvector.
  • Familiarity with indexing strategies like HNSW or DiskANN.
  • Proficiency in advanced chunking and parsing techniques.

Responsibilities

  • Lead design and development of scalable vectorization pipelines for multimodal data.
  • Manage and optimize vector databases with efficient indexing strategies.
  • Develop advanced techniques for chunking and parsing data to enhance retrieval accuracy.
  • Build hybrid search workflows integrating dense vector and sparse keyword search methods.
  • Create frameworks for evaluating retrieval performance using defined metrics.
  • Implement re-ranking pipelines with cross-encoders to enhance results sent to LLMs.
  • Collaborate with engineering and product teams to ensure a high-performance retrieval system.
Full Job Description
Job Requirements

Responsibilities

Lead the design and development of scalable vectorization pipelines to convert text, PDFs, and multimodal data into high-quality embeddings using models like BGE, Ada, or Cohere.

Manage and optimize vector databases (Pinecone, Weaviate, Milvus, pgvector), including building efficient indexing strategies (HNSW, DiskANN).

Develop advanced chunking and parsing techniques to maintain context and improve retrieval accuracy.

Build and fine-tune hybrid search workflows combining dense vector search with sparse keyword methods (e.g., BM25).

Create evaluation frameworks and gold-standard datasets to measure retrieval performance (Hit Rate, MRR, Faithfulness).

Implement re-ranking pipelines using cross-encoders to refine results before sending them to LLMs.

Work closely with engineering and product teams to ensure scalable, high-performance retrieval syste

Work Experience
2-5Years

About Virtusa Corporation

Virtusa Corporation is a global provider of digital business strategy, digital engineering, and information technology (IT) services and solutions. The company helps its clients transform their businesses through innovative technology solutions that enable them to improve customer engagement, increase operational efficiency, and drive revenue growth. Virtusa Corporation was founded in 1996 and is headquartered in Southborough, Massachusetts. The company has over 20,000 employees and operates in over 30 countries around the world. Virtusa Corporation is committed to sustainability and has received numerous awards for its environmental and social responsibility initiatives.
Learn more about Virtusa Corporation
Size
22,883 employees
Market Cap
$1.5 billion
Industry
Net Income
$44.6 million
Founded
1996
5 Year Trend
+22.3%
Revenue
$1.2 billion
NASDAQ

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