OTSI (Object Technology Solutions, Inc), we have an immediate opening for a Job Title Senior AI/ML Engineer – NLP, Generative AI, AWS with one of our direct clients. Job Title: Senior AI/ML Engineer – NLP, Generative AI, AWS Work Location: Malvern, PA (Hybrid – 3 Days Onsite) Duration: 6+ Months Contract Job Description: 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, Defense & PSUs. Our Center of Excellence: · Data & Analytics · Digital Transformation · QA & Automation · Enterprise Applications · Disruptive Technologies Job Type: Contract Pay: $55.00 - $60.00 per hour Expected hours: 40 per week Schedule: 8 hour shift Monday to Friday Work Location: In person