Senior Software Engineer - Java/Python AWS GenAI

Visa Consolidated Support Services India; Bengaluru; Hybrid; INR 4,000,000 - 9,000,000; Full time

Job summary

Visa is building a next-generation Agentic AI platform and seeks a Sr. Consultant Software Engineer to architect, design, and scale backend systems that integrate AI agents into Visa's enterprise infrastructure.

You will lead multi-disciplinary efforts, define architecture standards, and drive production-ready solutions with a hands-on, entrepreneurial mindset, focusing on speed, quality, and innovation.

Qualifications

• BS/MS in CS, Engineering or related field
• 11+ years backend development with Java/Spring Boot
• 2+ years Python (FastAPI/Flask) backend
• Production AI Agentic solutions experience, orchestration of LLM-based agents
• Experience with LangChain/LangGraph/Autogen
• Model Context Protocol frameworks for tool interoperability
• Understanding of AI orchestration patterns in distributed environments
• Proven distributed microservice architecture design and scaling
• REST/gRPC APIs, event-driven architecture, Kafka/RabbitMQ
• Vector DBs and RAG pipelines (Pinecone/Weaviate/FAISS)
• Cloud platforms (AWS/GCP/Azure)
• SQL/NoSQL databases; Docker/Kubernetes/ArgoCD/Jenkins/GH Actions
• Debugging, performance optimization, and large-scale system design

Responsibilities

• Architect and evolve the Agentic AI Platform for multi-agent orchestration, RAG, and microservices integration.
• Design scalable backend systems using Java (Spring Boot) and Python (FastAPI/Flask).
• Develop RESTful and gRPC APIs connecting backends, AI agents, and front-ends.
• Lead the integration of LLMs (GPT/Claude/Mistral/Gemini) into production systems.
• Build and optimize RAG pipelines with vector DBs.
• Develop orchestration workflows using LangChain/LangGraph/Autogen.
• Ensure distributed, fault-tolerant design with horizontal scalability.
• Drive observability and latency optimization with Kubernetes, Docker, and Prometheus/Grafana.
• Mentor teams, set coding standards, and drive platform roadmap.
• Drive security, governance, and cost efficiency in AI services.

Skills

Java

Spring Boot

Python

LLM integration

Distributed systems

REST/gRPC

Kubernetes

Docker

LangChain/LangGraph/Autogen

Microservices

Education

Bachelor's or Master's degree in Computer Science, Engineering, or related field

Tools

FastAPI

React

Kafka

RabbitMQ

Pinecone

Weaviate

FAISS

Jenkins

GitHub Actions

ArgoCD

Job description

About Us

Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.

At Visa, you'll have the opportunity to create impact at scale tackling meaningful challenges, growing your skills and seeing your contributions impact lives around the world.

Join Visa and do work that matters to you, to your community, and to the world. Progress starts with you.

Job Description

Visa is building a next-generation Agentic AI services that brings intelligent, autonomous agents into large-scale distributed applications across our global ecosystem. Were seeking a Sr. Consultant Software Engineer who will architect, design, and build scalable backend systems that integrate AI agents into Visas enterprise infrastructure. You will work with other Senior Engineers and technical leaders to define the architecture, scaling strategy, and engineering standards for Visas AI-driven products. This is a role for a hands-on technical leader a go-getter, builder, and problem solver with deep experience in Java microservices, GenAI integration, and distributed system design, and a true-north, entrepreneurial mindset focused on speed, quality, and innovation.

Architecture & Design:

• Architect and evolve the Agentic AI Platform to support multi-agent orchestration, retrieval-augmented generation (RAG), and integration with existing Visa microservices.
• Design scalable, secure backend systems using Java (Spring Boot) and Python (FastAPI/Flask).
• Develop RESTful and gRPC APIs that connect backend services, AI agents, and React front-end applications.

AI & GenAI Integration:

• Integrate Large Language Models (LLMs) such as GPT, Claude, Mistral, and Gemini into backend systems.
• Build and optimize RAG pipelines using vector databases (Pinecone, Weaviate, FAISS).
• Develop orchestration and agentic workflows using LangChain, LangGraph, or Autogen.

Scalability & Reliability:

• Lead the design and implementation of distributed, fault-tolerant systems that scale horizontally.
• Implement auto-scaling, monitoring, and observability using Kubernetes, Docker, and Prometheus/Grafana.
• Drive best practices for latency reduction, cost optimization, and service reliability.

Leadership & Execution:

• Partner with other senior engineers, ML engineers, and product leads to define and deliver the platform roadmap.
• Mentor developers, set coding standards, and lead design reviews.
• Deliver results with urgency balancing innovation with enterprise rigor.

Innovation & Strategy:

• Explore new frameworks, architectures, and deployment models to push the boundaries of Agentic AI in production.
• Drive continuous improvement, automation, and open-source adoption across the engineering organization.

AI Security & Governance:

• Design secure, compliant Agentic AI systems with builtin safeguards for data privacy, prompt security, auditability, and responsible AI usage across enterprise environments.

LLM Quality & Evaluation:

• Define evaluation metrics and testing frameworks to measure LLM and agent performance, accuracy, latency, cost, and reliability in production.

Platform & Developer Enablement:

• Build reusable AI platform components, SDKs, and internal tooling that accelerate adoption and enable teams to safely develop, deploy, and scale Agentic AI solutions.

Observability & Explainability:

• Implement endtoend observability for AI workflows, including tracing, logging, and monitoring of agent decisions and tool usage across distributed systems.

Operational Excellence:

• Lead production readiness, incident response, and postmortems for AI services, driving continuous improvements in resilience, scalability, and deployment practices.

CrossFunctional Technical Leadership:

• Collaborate with product, data, ML, and security teams to translate business needs into scalable AI architectures and influence platform strategy and roadmap.

This is a hybrid position. Expectation of days in office will be confirmed by your hiring manager.

Visa requires at least 3 days in office, expectations of these days will be confirmed by your Hiring Manager.

Qualifications

Basic Qualifications:

• Bachelors or Masters degree in Computer Science, Engineering, or related field.
• 11+ years of backend software development experience with Java and Spring Boot.
• 2+ years of backend experience with Python (FastAPI, Flask, or similar frameworks).
• Production-level experience in building and deploying AI Agentic solutions, including orchestration of LLM-based agents, integration with enterprise microservices, and troubleshooting live production environments.
• Hands-on experience implementing LLM, GenAI, and RAG systems using frameworks such as LangChain, LangGraph, or Autogen.
• Experience building and integrating Model Context Protocol (MCP) frameworks for tool and API interoperability
• Strong understanding of AI orchestration and LLM integration patterns in distributed environments.
• Proven experience building and scaling distributed microservice architectures.
• Proficiency in REST/gRPC API design, event-driven architectures, and message queues (Kafka, RabbitMQ).
• Experience with vector databases (Pinecone, Weaviate, FAISS) and retrieval-augmented generation (RAG) pipelines.
• Hands-on expertise with cloud platforms (AWS, GCP, Azure).
• Familiarity with SQL and NoSQL databases (MySQL, DynamoDB, MongoDB).
• Experience with containerization and CI/CD pipelines (Docker, Kubernetes, ArgoCD, Jenkins, GitHub Actions).
• Excellent debugging, performance optimization, and system design skills at scale.

Leadership Attributes:

• Go-Getter: Executes decisively, drives clarity, and thrives in ambiguity.
• Builder: Hands-on technologist who delivers high-impact systems from prototype to production.
• Hustler: Operates with urgency and persistence to overcome obstacles.
• Entrepreneurial: Innovates beyond defined scope, with ownership and bias for action.
• True North: Leads with integrity, clarity, and long-term vision.
• Lead by Example: Demonstrates accountability, openness, and excellence in technical and people leadership.
• Execute with Excellence: Sets a high bar for quality, collaboration, and delivery across multi-disciplinary engineering teams.

Tech Stack Snapshot:

• Languages: Java (Spring Boot), Python (FastAPI, Flask), TypeScript
• AI Frameworks: LangChain, LangGraph, Autogen, LlamaIndex
• LLMs: GPT, Claude, Mistral, Gemini
• Data: MySQL, Hazelcast, Pinecone, FAISS
• Infra: Docker, Kubernetes, ArgoCD, AWS/GCP
• Frontend Integration: React, GraphQL, REST/gRPC APIs

Visa is an EEO Employer

Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status. Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.