Java Developer

BeaconFire Inc.; New Jersey; On-site; USD 65,000 - 90,000; Full time

Job summary

BeaconFire Inc. seeks a junior to mid-level Java developer in New Jersey to join a Scrum team and contribute to the full development lifecycle. You will write clean code, participate in testing, perform reviews, and help maintain documentation for APIs and deployments.

Familiarity with Spring, Maven, React.js, HTML/CSS is preferred, along with AI/LLM concepts and RAG techniques. The role emphasizes learning and growth within a fast-paced environment, with opportunities to implement RAG pipelines

Qualifications

• Experience with SDLC and agile practices.
• Basic programming skills in OOP and knowledge of common APIs and data structures.
• Relational databases (MySQL, PostgreSQL) and basic SQL.

Responsibilities

• Write clean, efficient, maintainable code.
• Conduct testing for reliability and performance.
• Participate in code reviews and Agile Scrum ceremonies.
• Own full development lifecycle: planning, design, implementation, testing, optimization.
• Create technical documentation for apps, APIs, and deployment.
• Ship to production: APIs, observability, CI/CD, security best practices.
• Stay current with Java developments and AI integration.
• Implement RAG pipelines using Spring AI and LangChain4j with vector DBs.
• Stay updated on RAG tech, chunking, embeddings, retrieval, and reranking.

Skills

SDLC understanding

OOP programming

APIs and data structures

SQL basics

AI/LLM concepts

Education

Master’s Degree in CS

Tools

Spring

Maven

React.js

HTML

CSS

Weblogic

RabbitMQ

Tomcat

Spring AI

LangChain4j

Job description

Key Responsibilities

• 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:

Requirements

• 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:

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