Python Developer

Job Title: Python DeveloperLocation: - onsite - Phoenix ,AZ ( Need only local candidate)Duration: 6 monthsExperience: 5-6 YearsJob Description:"Knowledge Base & AI Platform Engineering• Design, develop, maintain and evolve enterprise knowledge-base infrastructure and AI-enabledbackend services using Python and FastAPI.• Build and optimize ingestion, chunking, embedding, vector indexing, semantic retrieval, reranking,context construction and grounded RAG pipelines.• Develop LangChain/LangGraph-based agent workflows and reusable agent-runtime capabilitiesincluding tool calling, state management, retries, validation, guardrails and human approval whererequired.Integrate LLMs and enterprise knowledge sources securely through reusable APIs and services.Implement PostgreSQL/vector database persistence, metadata filtering and retrieval patternsoptimized for accuracy, latency and scale.Cloud-Native Delivery & Production EngineeringContainerize services with Docker and deploy/manage them on Kubernetes.Build and maintain CI/CD pipelines using GitHub Actions, Jenkins or equivalent tools, includingautomated testing and deployment controls.• Implement logging, tracing, metrics, dashboards and alerts using OpenTelemetry, Prometheus,Grafana and enterprise monitoring tools.• Diagnose and resolve issues across APIs, retrieval pipelines, agent execution, databases, containersand distributed infrastructure.• Improve performance, reliability, security, scalability and cost efficiency of production AI services.Quality, Evaluation & Collaboration• Establish automated tests and evaluation approaches for APIs, retrieval quality, grounded responsesand agent behavior.• Apply secure coding, access controls, audit logging, prompt/output validation and responsible-AIpractices"Skills Required:"Python & API EngineeringStrong hands-on experience with Python 3.11+ and production backend development.Strong experience building secure, scalable REST APIs and microservices using FastAPI; familiaritywith Flask/Django is useful.• Strong understanding of asynchronous Python, API design, validation, error handling,authentication/authorization, and enterprise integration patterns.Generative AI, RAG & Knowledge Infrastructure• Hands-on experience building enterprise Generative AI applications using LLMs, RAG, semanticsearch, embeddings, and vector databases.• Strong experience with LangChain and LangGraph for agentic workflows, stateful orchestration, toolcalling, multi-step execution, and controlled agent runtimes.Experience designing knowledge ingestion, document chunking, embedding generation, metadata enrichment, retrieval/reranking, context assembly, grounded generation, and response validation pipelines.Experience with PostgreSQL and vector search; pgvector experience is highly desirable.Strong understanding of prompt engineering, AI agents, guardrails, human-in-the-loop patterns, AI evaluation, responsible AI, and secure enterprise data access. Platform Engineering, DevOps & ObservabilityStrong hands-on experience with Docker and Kubernetes for production AI services.Experience with Git, GitHub Actions/Jenkins and CI/CD pipelines for automated build, test and deployment.Experience with production monitoring and observability using OpenTelemetry, Prometheus, Grafana, Splunk/ELK or equivalent tools.Ability to troubleshoot performance, reliability, retrieval quality, API, infrastructure, and production issues across distributed AI systems.Strong analytical, problem-solving, documentation and cross-functional communication skills."Desirable skills:"Strong ownership and stakeholder management; ability to work across Product, Architecture, AI/ML,Data, Security and DevOps teams; clear technical communication; mentoring and code-reviewcapability; analytical problem solving; Agile delivery; focus on reliability, security, scalability andmaintainability."KEYWORDS"Python 3.11, FastAPI, LangChain, LangGraph, Generative AI, LLM, RAG, Retrieval AugmentedGeneration, AI Agents, Agentic AI, Prompt Engineering, Semantic Search, Embeddings, VectorDatabase, pgvector, PostgreSQL, Knowledge Base, Knowledge Platform, Document Ingestion,Chunking, Retrieval, Reranking, Docker, Kubernetes, GitHub Actions, Jenkins, CI/CD,OpenTelemetry, Prometheus, Grafana, AI Evaluation, Guardrails, REST API"Role Descriptions:Python & API Engineering Strong hands-on experience with Python 3.11+ and production backend development. Strong experience building secure| scalable REST APIs and microservices using FastAPI; familiarity with Flask/Django is useful. Strong understanding of asynchronous Python| API design| validation| error handling| authentication/authorization| and enterprise integration patterns.Generative AI| RAG & Knowledge Infrastructure Hands-on experience building enterprise Generative AI applications using LLMs| RAG| semantic search| embeddings| and vector databases. Strong experience with LangChain and LangGraph for agentic workflows| stateful orchestration| tool calling| multi-step execution| and controlled agent runtimes. Experience designing knowledge ingestion| document chunking| embedding generation| metadata enrichment| retrieval/reranking| context assembly| grounded generation| and response validation pipelines. Experience with PostgreSQL and vector search; pgvector experience is highly desirable. Strong understanding of prompt engineering| AI agents| guardrails| human-in-the-loop patterns| AI evaluation| responsible AI| and secure enterprise data access.Keyword:Skills: Digital : Python