Java Consultant

re-zoo-me; Town of Texas (WI); Hybrid; USD 70,000 - 110,000; Full time

Job summary

re-zoo-me is seeking a Full Stack Developer to build scalable web applications using Java 8/17, Spring Boot, SQL/NoSQL, Kafka, RabbitMQ, and modern front-end tech including Angular/React. You will own the full development lifecycle in an Agile team, write clean code, and document APIs and deployment steps.

Candidates should have experience in Java and JavaScript, understand SDLC, and be familiar with relational databases. Preferred CS Master’s degree and Spring AI / LangChain4j exposure.

Qualifications

• Experience in Java and JavaScript development.
• Understanding of SDLC and OO programming concepts.
• Knowledge of relational databases (e.g., MySQL, PostgreSQL) and basic SQL.

Responsibilities

• Develop scalable web applications using Java 8/17, Spring Boot, SQL, NoSQL, Kafka, RabbitMQ, Angular 2+, React.js, HTML5, CSS, JavaScript, and TypeScript.
• Write clean, efficient, and maintainable code.
• Conduct testing to ensure reliability.
• Perform code reviews for quality and consistency.
• Own the full development lifecycle in an Agile Scrum team.
• Create and maintain technical documentation for apps, APIs, and deployment procedures.
• Ship to production with APIs, monitoring, CI/CD, and security best practices.
• Stay current with Java technologies.

Skills

Java

JavaScript

OOP

SQL

NoSQL

Kafka

RabbitMQ

React.js

HTML5

CSS

TypeScript

REST APIs

Education

Master’s Degree in CS

Tools

Spring

Maven

React.js

HTML

CSS

Kafka

RabbitMQ

Tomcat

Weblogic

LangChain4j

Spring AI

Job description

Job Responsibilities

Full Stack Development

• Develop scalable web applications using Java 8/17, Spring Boot, SQL, NoSQL, Kafka, RabbitMQ, Angular 2+, React.js, HTML5, CSS, JavaScript, and TypeScript.
• Write clean and efficient code, and ensure code maintainability and reusability.
• Conduct Testing to ensure application and reliability.
• Perform code reviews to ensure code quality, consistency, and adherence to best practices.
• Participate in Agile Scrum team and own the full development lifecycle, including project planning, design, implementation, testing, and optimization.
• Create and maintain comprehensive technical documentation for applications, APIs, and deployment procedures.
• Ship to production: APIs, monitoring/observability, cost/performance optimization, CI/CD, and security best practices.
• Stay up to date with the latest technologies for Java development.

AI Integration

• Implement RAG pipelines using Spring AI and LangChain4j with vector database integration.
• Stay up to date with the latest RAG technologies and best practices, including chunking strategies, embeddings, retrieval optimization, and reranking techniques.

Requirement

• Experience in the programming languages Java and JavaScript.
• Decent understanding of the software development life cycle.
• Basic programming skills using object-oriented programming (OOP) languages with in-depth knowledge of common APIs and data structures like Collections, Maps, lists, Sets, etc.
• Knowledge of relational databases (e.g., MySQL, PostgreSQL), basic SQL query language skills.

Preferred Qualifications

• Master’s Degree in Computer Science (CS).
• 0-1 year of practical experience in Java coding.
• Experience using Spring, Maven, React.js, HTML, CSS.
• Knowledge of other contemporary Java technologies (e.g., Weblogic, RabbitMQ, Tomcat, etc.).
• Basic understanding of AI/LLM concepts.
• Spring AI or LangChain4j experience.
• RAG application building or vector database experience.