Job Description

Java Developer Skills Required:
1.Java & Frameworks

• Java 8,17 and/or Java 21 (features, memory model, collections, streams, concurrency utilities).
• Spring Boot (must): building RESTful services, configuration, profiles, exception handling, validation, actuator.
• Spring Data (JPA and/or Mongo): repositories, pagination, query derivation, transactions.
• Spring MVC and REST APIs: contract design, versioning, idempotency, error models.

2.Strong coding experience

• Write clean, maintainable code following best practices.
• Follows data structures and design patterns
• Develop REST APIs and microservices
• Exception handling

3.Core Engineering & Problem Solving

• Strong problem-solving skills: ability to break down problems, reason about complexity, and write clean, efficient code.
• Proficiency in Data Structures & Algorithms
• Coding fluency in Java: ability to implement solutions with correct edge cases and tests.

4.Testing & Quality

• JUnit 5 and mocking (Mockito); writing unit tests for controllers, services, repositories.
• Understanding of test pyramid (unit/integration/contract tests), code coverage basics (line/branch), and TDD mindset.
• SonarQube (quality gates, code smells, security hotspots).

5. Basic understanding of Build/CI/CD

• Maven (multi-module, profiles, dependency management).
• Git (branching strategy, PR reviews, rebasing vs merging).
• Jenkins Pipelines (basic pipeline-as-code).

6.Databases

• Strong SQL (joins, indexing, query plans, normalization/denormalization).
• Experience with a NoSQL DB (preferably MongoDB) schema design, aggregations, TTL indexes, transactions (where applicable).

7. Architecture & Operations

• Solid OO design & Design Patterns (when not to use them).
• Linux basics (processes, logs, systemctl, networking, shell scripting fundamentals).
• API Security basics (OAuth2/OIDC, JWT, CSRF, CORS, RBAC).
• Familiarity with microservices concerns:

8. Ways of Working

• Experience in Scrum/Agile, Jira, code reviews, and pair programming.
• Communication: ability to explain decisions and trade-offs clearly.

9.Fast & Independent Java Backend Developer
We need someone who can:

• Understand requirements quickly
• Build backend services efficiently
• Troubleshoot issues with minimal handholding
• Collaborate effectively with cross-functional teams
• Work well with frontend developers, designers, QA, and DevOps.
• Communicate technical decisions clearly and proactively.
• Own delivery end-to-end

Good to Have Skills:

• Quarkus and/or Reactive knowledge.
• Basic cloud exposure (AWS/GCP/Azure): S3/Blob storage, messaging (SQS/Kafka), managed DBs.
• Messaging (Kafka/RabbitMQ): producer/consumer patterns, at-least-once semantics.
• Elastic search cocepts
• Observability: logs (JSON logging), metrics, tracing

Experience-Wise Expectations:
2 4 Years
Clean Java (collections, streams), Spring Boot REST services.
Solid SQL, basic Mongo.
Write unit tests reliably, fix Sonar issues.
Comfortable with Git and Maven.
Can containerize a service using Docker.
5 8 Years
Own a microservice end-to-end.
Performance tuning (JPA N+1, indexes, caching with Redis).
Transactions: isolation levels, read vs write paths.
Experience with Jenkins pipelines, quality gates, and release process.
Handle production incidents, logs/metrics analysis.
8+ Years
System design: scalability, resilience, observability, cost awareness.
Guide on domain modelling, bounded contexts, and integration patterns.
Mentor teams; enforce engineering standards; cross-service design decisions.

Skills Required