WALK-IN DRIVE - JAVA Full Stack

Altraize

Ahmedabad District

On-site

INR 1,800,000 - 3,200,000

Full time

2 days ago

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Job summary

Altraize is seeking a Senior Java Full Stack Developer to design, develop, and optimize scalable backend services while contributing to frontend work using Angular or ReactJS. You will own modules end-to-end, mentor teammates, and ensure secure API development.

Requirements include strong Core Java, Spring Boot, Spring MVC, and microservices experience, with PostgreSQL expertise and a frontend capability. You will collaborate with product and operations to deliver robust software solutions.

Qualifications

4-6 years of hands-on experience with Java backend technologies.
Design, develop and maintain scalable backend services using Java/Spring.
Experience in building RESTful services and microservices architectures.
Strong database skills with PostgreSQL including queries and optimization.
Frontend development with Angular or ReactJS is a plus.
Security-first mindset: OAuth2/OIDC, JWT, RBAC, and secure API practices.

Responsibilities

Design, develop, and maintain scalable applications using Java, Spring Boot, Spring MVC, and Microservices.

Skills

Core Java

Spring Boot

Spring MVC

Microservices

PostgreSQL

Angular

ReactJS

REST APIs

OAuth2/OIDC

RBAC

Security

Caching

Observability

Tools

Kafka

RabbitMQ

Redis

Ehcache

Prometheus

Grafana

OpenTelemetry

Jaeger

Testcontainers

JUnit 5

Mockito

Job description

Experience: 4-6 Years
Location: Ahmedaba

Role Overview

We are looking for a Senior Java Full Stack Developer with strong experience in Core Java, Spring Boot, Spring MVC, Microservices, PostgreSQL, and Angular/ReactJS. The ideal candidate should have hands‑on experience in designing and developing scalable backend services while also contributing to frontend development.

The role requires strong engineering practices, ownership of modules, performance optimization, secure API development, and the ability to mentor team members.

Key Responsibilities

Design, develop, and maintain scalable applications using Java, Spring Boot, Spring MVC, and Microservices.
Develop and integrate RESTful APIs using industry-standard API design practices.
Work with Kafka/RabbitMQ for event‑driven and asynchronous communication.
Implement application security using Spring Security, OAuth2/OIDC, JWT, and RBAC.
Develop frontend applications using Angular and/or ReactJS.
Design and optimize PostgreSQL databases, queries, indexes, and transactions.
Implement caching using Redis/Ehcache and optimize application performance.
Work with monitoring and observability tools such as Micrometer, Prometheus, Grafana, and OpenTelemetry.
Write unit, integration, and contract tests using JUnit 5, Mockito, Spring Test, and Testcontainers.
Follow SOLID principles, Clean Code, and Clean/Hexagonal Architecture.
Participate in code reviews and ensure adherence to coding, security, and performance standards.
Take end‑to‑end ownership of modules, including design, development, testing, deployment, and operational performance.
Mentor developers, support sprint planning, resolve technical blockers, and contribute to estimation and risk management.
Collaborate with product and business stakeholders to understand requirements and communicate technical trade-offs.

Required Technical SkillsBackend - Java & Spring Ecosystem

Strong proficiency in Core Java 8/11/17/21.
Collections, Multithreading/Concurrency, Streams, and Functional Programming.
Understanding of JVM internals, memory management, and Garbage Collection.
Strong hands‑on experience with Spring Boot and Spring MVC.
Dependency Injection, Auto Configuration, Configuration Management, Actuator, and Profiles.
Experience with Spring Cloud and Microservices architecture.
Service Discovery using Eureka/Consul.
Config Server, API Gateway, Circuit Breaker, and distributed configuration.

REST APIs & Messaging

Strong knowledge of REST API design.
OpenAPI/Swagger, API versioning, pagination, idempotency, and error‑handling standards.
Experience with Kafka and/or RabbitMQ.
Understanding of event‑driven architecture and message delivery semantics.

Security

Experience with Spring Security.
OAuth2/OIDC and JWT.
Role-Based Access Control (RBAC).
Secure API development and input validation.
Understanding of OWASP Top 10 security practices.

Performance & Observability

Experience with Micrometer, Prometheus, Grafana, OpenTelemetry, Jaeger, or Zipkin.
Caching using Redis/Ehcache.
Understanding of cache keys, TTL, and cache stampede prevention.
Performance optimization, threading models, connection pooling, and memory management.
Experience with HikariCP and N+1 query optimization.

Database - PostgreSQL

Strong experience with PostgreSQL.
Database schema design and normalization/denormalization.
Indexing strategies including BTREE, GIN/GiST, composite, and partial indexes.
Strong SQL skills including joins, CTEs, window functions, and analytical queries.
Query optimization using EXPLAIN/ANALYZE.
Understanding of VACUUM, ANALYZE, statistics, and slow query analysis.
Transactions, isolation levels, constraints, and deadlock troubleshooting.

Frontend - Angular / ReactJS