AI/ML Engineer

Object Technology Solutions, Inc (OTSI) has an immediate opening for a Senior AI/ML Engineer NLP, Generative AI, AWS

Location - Malvern, PA hybrid role

Job Description:

About the Role:

We are seeking a highly experienced Senior AI/ML Engineer with deep expertise in Natural Language Processing (NLP), Generative AI, and cloud-native ML systems. This role is ideal for someone who has built production-ready intent detection models, NLG systems, and has strong experience with AWS Bedrock, LangChain, and LangGraph. You ll play a key role in architecting and scaling AI-first applications that leverage the latest in LLM, orchestration, and AWS-native services.

Key Responsibilities:

• Design, develop, and deploy intent classification and intent detection models using LLMs and traditional NLP methods
• Build and optimize Natural Language Generation (NLG) pipelines for chatbot responses, summarization, content creation, or knowledge grounding
• Architect and implement LangChain and LangGraph based applications for LLM-driven workflows (e.g., autonomous agents, RAG systems)
• Develop scalable machine learning pipelines using the AWS tech stack (e.g., Sagemaker, Lambda, Bedrock, Step Functions, DynamoDB, Athena)
• Integrate and fine-tune foundation models via AWS Bedrock, including Amazon Titan, Anthropic Claude, or Meta Llama
• Collaborate closely with product managers, ML researchers, and backend engineers to translate business requirements into robust AI solutions
• Lead experimentation efforts, conduct A/B testing, and ensure continuous evaluation of deployed ML models
• Mentor junior ML engineers and contribute to best practices in MLOps, model governance, and responsible AI

Required Qualifications:

• Total 10+ years in IT with 4 to 5+ years of experience in machine learning, with a focus on NLP and Generative AI
• Strong experience building and deploying intent detection, text classification, sequence tagging, and entity recognition models
• Proficient in LangChain, LangGraph, vector databases (e.g., FAISS, Pinecone), and orchestration of LLM workflows
• Deep knowledge of AWS Bedrock, Amazon SageMaker, Lambda, DynamoDB, Step Functions, etc.
• Experience working with open-source LLMs (LLaMA, Mistral, Falcon) or commercial APIs (Claude, GPT-4, etc.)
• Proficient in Python, with a solid grasp of ML frameworks such as PyTorch, HuggingFace Transformers, scikit-learn
• Strong understanding of MLOps practices including model versioning, CI/CD for ML, monitoring, and auto-scaling
• Bachelor s or Master s in Computer Science, Data Science, or a related field

Nice to Have:

• Experience integrating RAG (Retrieval-Augmented Generation) systems at scale
• Familiarity with vector search using Amazon OpenSearch, Pinecone, or Weaviate
• Experience with streaming data processing (e.g., AWS Kinesis, Kafka)
• Contributions to open-source AI/ML or NLP projects

About us:

OTSI is a leading global technology company offering solutions, consulting, and managed services for businesses worldwide since 1999. OTSI serves clients from its 15 offices across 6 countries around the globe with a Follow-the-Sun model. Headquartered in Overland Park, Kansas, we have a strong presence in North America, Central America, and Asia-Pacific with a Global Delivery Center based in India. These strategic locations offer our customers the competitive advantages of onshore, nearshore, and offshore engagement and delivery options, with 24/7 support. OTSI works with 100+ enterprise customers, of which many are Fortune ranked, OTSI focuses on industry segments such as Banking, Financial Services & Insurance, Healthcare & Life Sciences, Energy & Utilities, Communications & Media Entertainment, Engineering & Telecom, Retail & Consumer Services, Hi-tech, Manufacturing, Engineering, transport logistics, Government, Defence & PSUs.

Our Center of Excellence:

Data & Analytics

Digital Transformation

QA & Automation

Enterprise Applications

Disruptive Technologies