PRINCIPAL ARCHITECT - Java
Happiest Minds Technologies · IT Services & Consulting
- Bengaluru
- On-site
- Posted yesterday
- Software Engineering
About the job
Role Summary
We are looking for an experienced Java Full Stack Architect with strong expertise in Java backend, modern frontend technologies, cloud, microservices and AI/GenAI . The candidate will own end-to-end architecture, drive technology decisions, build scalable enterprise solutions and provide technical leadership to engineering teams.
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Key Responsibilities
Define and own end-to-end application architecture across frontend, backend, APIs, databases, cloud and AI components.
Design scalable Java/Spring Boot microservices and RESTful APIs.
Lead frontend architecture using React/Angular, JavaScript and TypeScript .
Design and implement AI/GenAI-enabled enterprise applications and features .
Identify opportunities to leverage LLMs, RAG, AI agents and intelligent automation within business applications.
Integrate enterprise applications with LLM/GenAI APIs and AI platforms .
Drive security, performance, scalability, observability and reliability.
Provide hands-on technical leadership, architecture reviews and code/design reviews.
Mentor senior developers and architects and establish engineering best practices.
Collaborate with product, business, engineering, DevOps and data teams to translate requirements into technical solutions.
Mandatory Skills
Java / Backend
Java 11/17/21+
Spring Boot / Spring Framework
Spring Security
Microservices Architecture
REST APIs / API Design
Hibernate / JPA
Kafka or equivalent messaging technology
Frontend
React or Angular ? strong hands-on expertise
JavaScript / TypeScript
HTML5 / CSS3
Frontend architecture and design patterns
Responsive UI development
AI / GenAI ? Mandatory
Strong understanding of Generative AI and LLMs
Experience integrating OpenAI, Azure OpenAI, Gemini, Claude or equivalent LLM APIs
RAG architecture and vector databases
Prompt engineering and LLM application development
AI agents / Agentic AI concepts
AI-powered automation and enterprise use cases
Understanding of AI security, governance, responsible AI and data privacy
Experience integrating AI capabilities into Java/full-stack applications
Architecture & Cloud
Enterprise Application Architecture
System Design / Distributed Systems
Design Patterns / SOLID
AWS / Azure / GCP
Docker / Kubernetes
CI/CD and DevSecOps
Git
Database
Strong SQL expertise
Oracle / PostgreSQL / MySQL
MongoDB or other NoSQL technologies
Leadership
Technical leadership of engineering teams
Architecture and design governance
Mentoring and technical coaching
Strong communication and stakeholder management