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Alltech Consulting Services, Inc.

Java Developer

Alltech Consulting Services, Inc., Chicago, Illinois, United States, 60290

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Role: Java Developer

Location: Chicago, IL/ Day 1 onsite

Visa: H1B L2 EAD Need Passport Number

Description: Full Stack Developer (Java, Spring Boot, Microservices, Kafka, Cloud, Cassandra, Reactive/WebFlux)

Position Overview We are seeking an experienced Full Stack Developer with strong expertise in Core Java, Advanced Spring Boot, Microservices architecture, Kafka, Cloud Technologies, Cassandra, and Reactive Programming (WebFlux). This role involves building high-performance backend microservices and scalable front-end applications, contributing to system design, and delivering enterprise-grade solutions.

Key Responsibilities Backend Development

Develop, enhance, and maintain Spring Boot microservices using Core Java and advanced Spring features.

Implement Reactive Programming using Spring WebFlux, Reactor, and non-blocking I/O patterns.

Build scalable REST APIs, asynchronous communication flows, and event-driven components.

Integrate and work extensively with Kafka for event streaming, pub/sub, and message processing.

Design and implement distributed systems with high availability and resiliency.

Frontend Development

Develop responsive, user-friendly UI applications using React / Angular / Vue (based on project needs).

Integrate frontend applications with backend APIs and microservices.

Ensure modular, reusable components and consistent design patterns.

Cloud & DevOps

Deploy and run microservices on major cloud platforms: AWS / Azure / Google Cloud Platform.

Utilize Docker, Kubernetes, Helm for containerization and orchestration.

Build and maintain CI/CD pipelines (Jenkins, GitHub Actions, Azure DevOps, GitLab).

Implement observability logging, monitoring, tracing using ELK, PrometheGrafana, Splunk, or Cloud-native tools.

Data & Storage

Design and optimize Cassandra data models, queries, and partition strategies for large-scale datasets.

Use Spring Data Cassandra (Reactive) to build reactive persistence layers.

Integrate additional data platforms like Redis, RDBMS, or NoSQL stores as needed.

Architecture & System Design

Contribute to design discussions and create scalable, secure microservices architecture.

Follow 12-factor, cloud-native, and domain-driven design (DDD) principles.

Apply security frameworks (OAuth2, JWT, Spring Security) across services and APIs.

Quality & Collaboration

Write clean, well-tested code using JUnit, Mockito, Testcontainers, and contract testing.

Participate in code reviews, architectural discussions, and pair programming.

Work closely with product owners, architects, and cross-functional teams in an Agile environment.

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