Java/JEE Application Developer - Core Java

NTT DATA Global Delivery Services Ltd; Bengaluru; On-site; INR 1,320,000 - 2,200,000; Full time

Job summary

NTT DATA is seeking a Java/JEE-Application Development engineer in Bengaluru with GenAI expertise to design and deploy agentic AI solutions for production environments. You will build tool-calling agents, scale LLM deployments, and integrate with observability and incident management systems.

The role emphasizes collaboration with production teams, safety checks, and performance optimization. Strong ML, AI governance, and cloud experience are required.

Qualifications

• 5+ years of software development in one or more languages (Python, C/C++, Go, Java).
• 3+ years designing, architecting, testing, and launching production ML systems.
• Practical experience with LLMs: API integration, prompt engineering, and RAG.
• Understanding of multiple LLMs (OpenAI, Gemini, Llama, Qwen, Claude).
• Solid grasp of statistics and core ML concepts.
• Strong analytical problem-solving and collaboration across teams.
• Preferred AWS cloud infrastructure experience and related tooling.

Responsibilities

• Design and implement agentic AI systems with tool-calling and guardrails.
• Productionize LLMs with retrieval pipelines and validation frameworks.
• Integrate agents with observability and incident management systems.
• Collaborate with production engineers and teams to translate pain points.
• Build safety validators, deterministic fallbacks, and governance checks.
• Optimize cost and latency via prompt engineering and orchestration.
• Develop a robust RAG data-quality and knowledge freshness pipeline.
• Mentor peers on agent architectures and safe deployment practices.

Skills

5+ yrs software

3+ yrs ML systems

LLMs & RAG

LLM platforms

Statistics basics

Analytical skills

AWS

Headcount 1

BLR onsite

Salary cap 22 LPA

Tools

ECS/EKS

SageMaker

Terraform/CloudFormation

Job description

Java/JEE-Application Development-Core Java Req ID: 355328

NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization,

We are currently seeking a Java/JEE-Application Development-Core Java to join our team in Bangalore, Karnātaka (IN-KA), India (IN).

Job Description

In this role, you will be responsible for launching and implementing GenAI agentic solutions aimed at reducing the risk and cost of managing large-scale production environments with varying complexities. You will address various production runtime challenges by developing agentic AI solutions that can diagnose, reason, and take actions in production environments to improve productivity and address issues related to production support.

What you’ll do:

• Build agentic AI systems: Design and implement tool-calling agents that combine retrieval, structured reasoning, and secure action execution (function calling, change orchestration, policy enforcement) following MCP protocol. Engineer robust guardrails for safety, compliance, and least-privilege access.
• Productionize LLMs: Build evaluation framework for open-source and foundational LLMs; implement retrieval pipelines, prompt synthesis, response validation, and self-correction loops tailored to production operations.
• Integrate with runtime ecosystems: Connect agents to observability, incident management, and deployment systems to enable automated diagnostics, runbook execution, remediation, and post-incident summarization with full traceability.
• Collaborate directly with users: Partner with production engineers, and application teams to translate production pain points into agentic AI roadmaps; define objective functions linked to reliability, risk reduction, and cost; and deliver auditable, business-aligned outcomes.
• Safety, reliability, and governance: Build validator models, adversarial prompts, and policy checks into the stack; enforce deterministic fallbacks, circuit breakers, and rollback strategies; instrument continuous evaluations for usefulness, correctness, and risk.
• Scale and performance: Optimize cost and latency via prompt engineering, context management, caching, model routing, and distillation; leverage batching, streaming, and parallel tool-calls to meet stringent SLOs under real-world load.
• Build a RAG pipeline: Curate domain-knowledge; build data-quality validation framework; establish feedback loops and milestone framework maintain knowledge freshness.
• Raise the bar: Drive design reviews, experiment rigor, and high-quality engineering practices; mentor peers on agent architectures, evaluation methodologies, and safe deployment patterns.

ESSENTIAL SKILLS

• 1. 5+ years of software development in one or more languages (Python, C/C++, Go, Java); strong hands-on experience building and maintaining large-scale Python applications preferred.
• 2. 3+ years designing, architecting, testing, and launching production ML systems, including model deployment/serving, evaluation and monitoring, data processing pipelines, and model fine-tuning workflows.
• 3. Practical experience with Large Language Models (LLMs): API integration, prompt engineering, fine-tuning/adaptation, and building applications using RAG and tool-using agents (vector retrieval, function calling, secure tool execution).
• 4. Understanding of different LLMs, both commercial and open source, and their capabilities (e.g., OpenAI, Gemini, Llama, Qwen, Claude).
• 5. Solid grasp of applied statistics, core ML concepts, algorithms, and data structures to deliver efficient and reliable solutions.
• 6. Strong analytical problem-solving, ownership, and urgency; ability to communicate complex ideas simply and collaborate effectively across global teams with a focus on measurable business impact.
• 7. Preferred: Proficiency building and operating on cloud infrastructure (ideally AWS), including containerized services (ECS/EKS), serverless (Lambda), data services (S3, DynamoDB, Redshift), orchestration (Step Functions), model serving (SageMaker), and infra-as-code (Terraform/CloudFormation).
• 8. Headcount: 1
• 9. Location: 5 days from WFO - BLR
• 10. Max Sal: 22 LPA

About NTT DATA

NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D. Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form, https://us.nttdata.com/en/contact-us . NTT DATA endeavors to make https://us.nttdata.com accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact us at https://us.nttdata.com/en/contact-us . This contact information is for accommodation requests only and cannot be used to inquire about the status of applications.

NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.

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