Senior Agentic AI Engineer

Alternative Path; Gurgaon; On-site; INR 1,400,000 - 2,400,000; Full time

Job summary

Alternative Path Private Limited is hiring a Senior AI & Agentic System Engineer to design and build autonomous AI agents that reason, use tools, interact with APIs, and execute multi-step workflows. You will shape agent architecture across LLM engineering, backend systems, and cloud infrastructure, with ownership over reliability, evaluation, and scalability.

You will integrate OpenAI/Anthropic/Gemini, implement tool calls and prompts, and develop RAG pipelines, memory, and monitoring while

Qualifications

• 5+ years of software/backend engineering with strong system-design skills.
• Hands-on experience building production AI agents beyond basic chatbots.
• Experience with at least one major LLM provider SDK (OpenAI/Anthropic/Gemini).
• Strong understanding of prompt engineering, tool/function calling, outputs, context mgmt, token optimization.

Responsibilities

• Design and build autonomous AI agents capable of tool use, API interaction, memory, and multi-step execution.
• Architect agentic workflows incl. planner/executor/verifier, multi-agent, HITL, retry, and fault recovery.
• Integrate LLM providers, including structured outputs and function calling.
• Develop scalable backend services in Python/Node.js and expose REST/GraphQL APIs.
• Own CI/CD and cloud deployments across environments.
• Build observability, evaluation, and cost-monitoring for AI systems.

Skills

Production AI agents

LLM engineering

Agent frameworks

REST/GraphQL

AWS

Python/Node.js

CI/CD

Prompt engineering

Tool use & APIs

Distributed systems

Tools

LangGraph

CrewAI

AutoGen

ReAct

Langfuse

LangSmith

Helicone

Arize Phoenix

RAGAS

DeepEval

Job description

Alternative Path Private Limited | Full time

We are looking for a Senior AI & Agentic System Engineer to design and build production-grade AI agents that can reason, use tools, interact with APIs, and execute complex multi-step workflows.

You’ll work at the intersection of LLM engineering, agent architecture, backend systems, and cloud infrastructure , with significant ownership over architecture, reliability, evaluation, and scalability.

Key Responsibilities

• Design and build autonomous AI agents capable of tool use, web/API interaction, memory, and multi-step task execution.
  
• Architect agentic workflows including planner/executor/verifier, multi-agent, HITL, retry, and failure-recovery patterns .
  
• Integrate LLM providers such as OpenAI, Anthropic, and Gemini , including structured outputs, function calling, context management, and prompt optimization.
  
• Build RAG and knowledge pipelines using embeddings, vector databases, hybrid search, reranking, and agent memory.
  
• Develop scalable backend services using Python and/or Node.js/TypeScript , REST/GraphQL APIs, async processing, and background jobs.
  
• Design reliable distributed systems with appropriate patterns for state persistence, caching, idempotency, event-driven workflows, and fault tolerance.
  
• Build observability and evaluation frameworks for AI systems, including tracing, behavioral regression testing, latency, quality, and token-cost monitoring.
  
• Own CI/CD and cloud deployments across development, staging, and production environments.
  
• Evaluate emerging technologies such as MCP, A2A, reasoning models, and agent frameworks and recommend practical adoption.
  

Required Skills

• 5+ years of software/backend engineering experience with strong system-design expertise.
  
• Hands-on experience building production AI agents , beyond basic chatbot implementations.
  
• Strong experience with at least one major LLM provider SDK: OpenAI, Anthropic, or Gemini .
  
• Strong understanding of prompt engineering, tool/function calling, structured outputs, context management, and token optimization .
  
• Experience with agent frameworks/patterns such as LangGraph, CrewAI, AutoGen, ReAct, or plan-and-execute .
  
• Experience with RAG, embeddings, vector databases, hybrid retrieval, and reranking .
  
• Strong knowledge of REST/GraphQL APIs, asynchronous processing, databases, and distributed systems .
  
• Hands-on AWS experience, particularly Lambda, ECS/Fargate, API Gateway, S3, SQS, SNS/EventBridge, IAM, and CloudWatch .
  
• Experience with Docker, GitHub Actions, and Terraform .
  
• Understanding of AI security, including prompt injection, guardrails, output validation, and safe tool execution .
  

AI/LLMOps & Evaluation

Experience with tools such as:

• Langfuse, LangSmith, Helicone, or Arize Phoenix
  
• RAGAS, DeepEval, Promptfoo, or Braintrust
  
• LLM tracing, behavioral evaluations, regression testing, and cost monitoring.
  

Nice to Have

• Experience with multimodal/vision-based agents.
  
• Knowledge of GraphRAG and knowledge graphs .
  
• Experience with Temporal or durable workflow execution .
  
• Open-source contributions to AI tooling.
  
• Background in ML/data science alongside software engineering.
  

LLMs: OpenAI, Anthropic Claude

Agent Infrastructure: Custom orchestration, MCP

Cloud: AWS Lambda, ECS/Fargate

CI/CD: GitHub Actions