JOBWAVE VERIFIED

Java Full-Stack Developer

Company: Not specified Location: Bangalore (BCIT) Experience: 7+ Years Education: Not specified Work Mode: Hybrid — 3 days/week from office Employment Type: Not specified Notice Period: Immediate Joiners Only — Non-Negotiable Core Domain: Full-Stack Development Primary Backend: Java 8+ / Spring Security Primary Frontend: React Cloud: Azure preferred / Any cloud platform DevOps: CI/CD exposure Testing: JUnit

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JOBWAVE INSIGHTS

Who is this for?

This role is targeted at a senior Java Full-Stack Developer with 7+ years of experience who can take ownership of backend development while also working hands-on with React, application security, cloud, CI/CD, debugging, and unit testing.

The biggest practical constraint is immediate joining, which is explicitly non-negotiable.

Key Skills

• Java 8+
• React
• Spring Security
• JWT authentication
• Azure or another cloud platform
• CI/CD and DevOps
• Debugging & troubleshooting
• JUnit
• Full-stack application development
• Technical ownership

Priority Skills

Highest Priority

1. Java 8+
2. React hands-on experience
3. Spring Security + JWT
4. Immediate availability
5. 7+ years of experience

Strong Advantages

• Azure cloud experience
• Hands-on CI/CD
• Strong debugging and troubleshooting
• JUnit/unit-testing experience
• Experience owning full-stack features

What to Prepare

• Java 8+ fundamentals and advanced concepts
• Spring/Spring Security architecture
• JWT authentication and authorization
• React fundamentals and component architecture
• REST API integration between React and Java
• Cloud deployment concepts, especially Azure
• CI/CD pipeline concepts
• Debugging production issues
• JUnit test-case design
• Full-stack system design

What to Focus On

1. Java Ownership

Be prepared to demonstrate strong knowledge of Java 8+ and explain how you have independently owned backend features, services, or applications.

2. Spring Security + JWT

This is a key requirement. Prepare authentication flows, JWT generation/validation, authorization, roles/permissions, token expiration, refresh tokens, and securing REST APIs.

3. React

The requirement specifically says hands-on React experience, so prepare practical topics such as components, hooks, state management, API calls, forms, error handling, and performance.

4. Cloud & DevOps

You should be able to explain your exposure to cloud platforms and CI/CD, including how applications are built, tested, deployed, monitored, and promoted across environments.

5. Debugging & Testing

Prepare real examples of identifying production defects, troubleshooting API/backend/frontend issues, and writing JUnit tests for business logic and services.

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JOB DETAILS

Original Role Information

Role Overview

The company is hiring an experienced Java Full-Stack Developer for its Bangalore team. The role requires strong Java ownership along with hands-on React development and exposure to security, cloud, DevOps, troubleshooting, and testing.

Responsibilities

Backend Development

• Develop and maintain applications using Java 8+
• Take strong ownership of backend development
• Build and maintain secure APIs and services

Frontend Development

• Develop user-facing functionality using React
• Integrate React applications with backend APIs
• Troubleshoot frontend-related issues

Security

• Implement and maintain Spring Security
• Work with JWT-based authentication and authorization

Cloud & DevOps

• Work with cloud platforms
• Azure exposure is preferred
• Work with CI/CD and DevOps processes

Troubleshooting

• Debug application issues
• Investigate technical problems
• Support troubleshooting and issue resolution

Testing

• Write and maintain JUnit test cases
• Support application quality through unit testing

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REQUIREMENTS

Experience

• 7+ years of professional experience
• Strong Java development background
• Full-stack development experience
• Immediate joining availability required

Backend

• Java 8+
• Spring Security
• JWT
• REST/API development

Frontend

• React
• Hands-on frontend development

Cloud

• Exposure to any cloud platform
• Azure preferred

DevOps

• CI/CD exposure
• General DevOps understanding

Testing

• JUnit test cases

Troubleshooting

• Application debugging
• Technical troubleshooting
• Issue analysis and resolution

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QUALIFICATIONS

• 7+ years of relevant software development experience
• Strong Java 8+ skills
• Hands-on React experience
• Hands-on Spring Security/JWT experience
• Cloud platform exposure
• CI/CD exposure
• Debugging and troubleshooting experience
• JUnit experience
• Willingness/ability to work from Bangalore BCIT 3 days per week
• Immediate joiner status

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POTENTIAL GAPS TO CHECK

Before applying/interviewing, verify these areas:

• Immediate joining: This is explicitly non-negotiable.
• React: The requirement says hands-on experience, so theoretical knowledge alone may not be enough.
• Spring Security + JWT: Be ready to explain an actual implementation rather than only the concepts.
• Java 8+: Expect strong technical questioning because Java is the primary skill.
• Azure/cloud: Identify exactly which cloud services you have used.
• CI/CD: Be able to explain pipelines and deployment workflows you have worked with.
• JUnit: Prepare examples of unit tests you have written.
• Bangalore hybrid: Confirm availability for 3 office days per week.

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INTERVIEW PREPARATION

Phase 1 — Java

• Java 8 features
• Streams and Lambda
• Functional interfaces
• Collections
• Exception handling
• Multithreading/concurrency
• JVM basics
• OOP principles
• Design patterns
• Java performance considerations

Phase 2 — Spring Security & JWT

• Authentication vs authorization
• Spring Security filter chain
• JWT structure
• Access vs refresh tokens
• Token validation
• Role-based authorization
• Password/security best practices
• Securing REST APIs
• Handling expired/invalid tokens

Phase 3 — React

• Components and props
• State management
• Hooks
• useEffect
• Forms and validation
• API integration
• Error handling
• Component reusability
• Performance optimization
• React application architecture

Phase 4 — Cloud & DevOps

• Cloud fundamentals
• Azure basics
• Application deployment
• CI/CD pipeline stages
• Build and test automation
• Environment configuration
• Deployment strategies
• Logs and monitoring

Phase 5 — Testing & Troubleshooting

• JUnit fundamentals
• Unit vs integration testing
• Mocking dependencies
• Testing Spring services/controllers
• Debugging REST APIs
• Log analysis
• Production incident troubleshooting
• Root-cause analysis

Final Interview Focus

Be ready for questions such as:

• How have you used Java 8 features in production?
• How does JWT authentication work in Spring Security?
• How would you secure a React + Spring Boot application?
• How do you handle expired JWT tokens?
• Explain a React application you developed hands-on.
• How would you troubleshoot a slow REST API?
• What CI/CD pipeline have you worked with?
• Which cloud platform and services have you used?
• How do you write effective JUnit test cases?
• Describe a difficult production issue you debugged and how you resolved it.
• Describe a full-stack feature you owned from development through deployment.