LangChain Engineer

Job Title: AI/ML Engineer

Duration: Contract to Hire

Location: Columbus, OH 43240 OR Plano, TX 75024 OR Jersey City, NJ 07310 (All days onsite)

***GC/ USC only*****

Must Have:

• AI/ML skillset - Java or python

• Building applications

Job Description:

• 10 plus years of software development experience (Java or Python).

• 2 plus years of hands-on experience building AI/ML applications in production.

• Strong proficiency with RAG architectures — chunking strategies, embedding models, vector stores (Pinecone, OpenSearch, pgvector, FAISS).

• Experience with AI orchestration frameworks: LangChain, LlamaIndex, Semantic Kernel, or CrewAI.

• Handson experience with AWS Bedrock, Anthropic Claude models, and model invocation APIs.

• Proven prompt engineering skills — system prompts, fewshot, chain-of-thought, tool use, structured outputs.

• Experience building conversational AI: chatbots (text) and voicebots (speechto-text, text-to-speech integration).

• Proficiency with AWS services (Lambda, Step Functions, API Gateway, S3, DynamoDB, SQS).

• Experience with CI/CD pipelines, containerization (Docker, ECS/EKS), and infrastructureas-code.

• Strong understanding of API design (REST, GraphQL), microservices architecture, and eventdriven systems.

• Familiarity with evaluation frameworks for LLM outputs.

• Experience with guardrails, content filtering, and responsible AI practices.