Full Stack Java Engineer

BeaconFire Inc.; New Jersey; On-site; USD 65,000 - 80,000; Full time

Job summary

BeaconFire Inc. is seeking a talented Java Developer located in New Jersey to build scalable Spring Boot microservices. The ideal candidate will participate in the full development lifecycle, ensuring code quality and collaborating in an Agile environment.

This role requires a Master’s degree in Computer Science along with knowledge of various Java technologies, including Spring and relational databases. Competitive salary ranges from $65,000 to $80,000 per year, commensurate with experience.

Qualifications

• Decent understanding of the software development life cycle.
• Basic programming skills using object-oriented programming languages.
• Knowledge of relational databases and SQL query language.

Responsibilities

• Write clean and efficient code, ensuring maintainability.
• Conduct testing for application reliability.
• Participate in Agile Scrum team and own the full development lifecycle.
• Create and maintain comprehensive technical documentation.
• Ship to production APIs and ensure security best practices.
• Stay up to date with Java development technologies.

Skills

Java

Spring

Maven

React.js

HTML

CSS

MySQL

PostgreSQL

AI/LLM concepts

Education

Master’s Degree in Computer Science

Job description

About the Role

We're looking for a talented Java developer to build scalable, production-ready Spring Boot microservices. You'll design and implement high-performance web services, develop intelligent tool-using agents, and work confidently with cloud-native architectures and databases. You'll own the development lifecycle, including design, implementation, testing, and optimization.

Responsibilities

• Full Stack Development
• 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

Qualifications

• 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

Required Skills

• 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.

Pay range and compensation package

$65,000.00 to $80,000.00 /year

Equal Opportunity Statement

BeaconFire is an E-verified company and provides equal employment opportunities (visa sponsorship provided).