The world of scalable, event‑driven applications is exploding as businesses move to real‑time data processing. Senior Java developers who master Spring Boot, microservices, and big‑data tools like Spark are in high demand. This role offers a chance to lead cutting‑edge projects on AWS while shaping architecture for high‑throughput systems.

Job Summary

We are seeking a seasoned Senior Java Developer to design, build, and maintain high‑performance backend services. The role focuses on Java 11+, Spring Boot microservices, event‑driven architectures using Kafka, and large‑scale data processing with Apache Spark/PySpark. You will collaborate with front‑end teams (Angular), DevOps, and data engineers to deliver end‑to‑end solutions on AWS.

Top 3 Critical Skills Table

Interview Preparation

1. Design a microservice that consumes Kafka streams and processes data using Spark. What are the key considerations for fault tolerance and exactly‑once semantics?
   What the interviewer is looking for: Understanding of Kafka consumer groups, offset management, Spark Structured Streaming checkpoints, and strategies to achieve idempotency.
2. Explain how you would containerize a Spring Boot application and deploy it on AWS EKS. Which AWS services would you integrate for CI/CD?
   What the interviewer is looking for: Knowledge of Docker, Kubernetes manifests, Helm charts, and AWS services like CodePipeline, CodeBuild, and IAM roles.
3. Compare and contrast relational (RDBMS) and NoSQL databases for storing event data. When would you choose one over the other?
   What the interviewer is looking for: Ability to discuss consistency, scalability, query patterns, and trade‑offs between systems such as PostgreSQL vs. DynamoDB or MongoDB.
4. Walk through a scenario where you need to migrate a database schema using Flyway in a CI/CD pipeline. How do you ensure zero downtime?
   What the interviewer is looking for: Experience with versioned migrations, backward‑compatible scripts, blue‑green deployments, and automated testing.
5. How does Angular interact with a Spring Boot backend in a microservices environment? Describe best practices for authentication and data transfer.
   What the interviewer is looking for: Familiarity with REST/GraphQL APIs, JWT/OAuth2 security, CORS handling, and efficient payload design.

Resume Optimization

• Java (Java 11+)
• Spring Boot
• Microservices Architecture
• Apache Spark / PySpark
• Kafka (Streaming)
• AWS (EC2, EKS, S3, IAM, VPC)
• Angular 13+
• RDBMS & NoSQL databases
• Git version control
• CI/CD (Jenkins, Flyway)

Application Strategy

When reaching out to the recruiter, send a concise email that starts with a friendly greeting, briefly introduces yourself, and states your interest in the Senior Java Developer role. Attach your updated resume and be sure to highlight your top relevant skills—such as Advanced Java, Spring Boot microservices, and Apache Spark—and cite specific projects where you used these technologies. Mention any experience with AWS, Kafka, and Angular to demonstrate a full‑stack fit. End the email by expressing enthusiasm for a conversation and providing your contact details.

Career Roadmap