Senior Architect – Java (Full Stack, AI/GenAI)

Happiest Minds Technologies; Bengaluru; On-site; INR 3,500,000 - 5,800,000; Full time

Job summary

Happiest Minds Technologies in Bengaluru seeks a Senior Architect – Java to lead design and development of enterprise applications powered by Java, Cloud, microservices, full stack, and GenAI. You will define scalable architectures, mentor teams, and deliver high-impact solutions with AI capabilities.

You'll drive end-to-end architectural integrity, collaborate with product, engineering, and business stakeholders, ensure security and performance, and uphold governance and best practices across

Qualifications

• Extensive Java backend experience with Spring Boot and Spring Framework.
• Cloud-native design, distributed systems, and scalable architectures.
• Proven leadership of large engineering teams and architecture governance.
• Hands-on with GenAI integration, LLMs, and AI-powered business solutions.
• Strong security, observability, and performance focus in enterprise apps.
• CI/CD, DevSecOps, and governance practices across delivery teams.

Responsibilities

• Define end-to-end architecture across frontend, backend, APIs, and cloud components.
• Design and build scalable, secure Java applications using Spring Boot.
• Lead microservices architecture for enterprise platforms.
• Implement AI-powered enterprise applications with GenAI, RAG, and AI Agents.
• Integrate with OpenAI, Azure OpenAI, Gemini, Claude and similar APIs.
• Establish architecture standards and governance; conduct reviews.
• Mentor senior engineers and ensure delivery excellence across teams.
• Collaborate with product, engineering, DevOps, and data teams for requirements.

Skills

Leadership & Stakeholder Management

Distributed Systems

Cloud-Native Development

AI/GenAI Integration

Security & Observability

Mentoring & Coaching

Strategic Tech Decisions

Tools

Spring Boot

Spring Framework

Hibernate/JPA

Apache Kafka

React.js

Angular

OpenAI / Azure OpenAI / Gemini / Claude

Job description

Senior Architect – Java (Full Stack, AI/GenAI)

About the Role

We are looking for a highly skilled Senior Architect – Java to lead the design and development of next-generation enterprise applications powered by Java, Cloud, Microservices, Full Stack technologies, and Generative AI. This role requires a hands‑on technology leader who can define scalable architectures, drive innovation, mentor engineering teams, and deliver business‑critical solutions leveraging modern AI capabilities.

The ideal candidate will bring deep expertise in enterprise architecture, distributed systems, cloud‑native development, and AI/GenAI integration while collaborating closely with product, engineering, and business stakeholders.

Key Responsibilities

• Define and drive end‑to‑end architecture across frontend, backend, APIs, databases, cloud, and AI components.
• Design and build scalable, secure, and high‑performing applications using Java and Spring Boot.
• Lead architecture and development of microservices‑based enterprise platforms.
• Design and implement AI‑powered enterprise applications leveraging GenAI technologies.
• Identify opportunities to integrate LLMs, AI Agents, RAG frameworks, and intelligent automation into business solutions.
• Integrate enterprise applications with OpenAI, Azure OpenAI, Gemini, Claude, and other AI platforms.
• Establish architecture standards, engineering best practices, and governance frameworks.
• Conduct architecture reviews, code reviews, and technical design workshops.
• Ensure application security, scalability, reliability, observability, and performance.
• Collaborate with Product, Engineering, DevOps, Data, and Business teams to translate business requirements into scalable technical solutions.
• Mentor architects and senior engineers while driving technical excellence across delivery teams.

Required Skills & Expertise

• Spring Boot & Spring Framework
• Spring Security
• RESTful API Design & Development
• Hibernate / JPA
• Apache Kafka or equivalent messaging platforms

Frontend Technologies

• Strong expertise in React.js or Angular
• HTML5 & CSS3
• Frontend architecture and design patterns
• Responsive and scalable UI development

AI / Generative AI (Mandatory)

• Strong understanding of Generative AI, LLMs, and AI‑powered applications
• Experience integrating OpenAI, Azure OpenAI, Gemini, Claude, or similar LLM APIs
• Retrieval‑Augmented Generation (RAG) architectures
• Vector Databases and Semantic Search
• Prompt Engineering and LLM Application Development
• AI Agents / Agentic AI Frameworks
• AI‑powered automation and enterprise AI use cases
• AI Security, Governance, Responsible AI, and Data Privacy
• Integration of AI capabilities within enterprise Java applications

Architecture & Cloud

• Distributed Systems Design
• Design Patterns, SOLID Principles, and Architectural Best Practices
• CI/CD and DevSecOps Practices
• Git and Version Control Systems

Databases

• Strong SQL expertise
• Oracle, PostgreSQL, or MySQL
• MongoDB and NoSQL technologies
• Data Modeling and Optimization

Leadership & Stakeholder Management

• Technical leadership of large engineering teams
• Architecture governance and review processes
• Technical mentoring and coaching
• Strong communication and stakeholder management skills
• Ability to drive strategic technology decisions