Junior Java Developer

BeaconFire Inc.; Delaware; On-site; USD 62,000 - 80,000; Full time

Benefits offered by this job

Visa sponsorship

Job summary

BeaconFire Inc. is seeking an AI developer to build scalable, production-ready Spring Boot microservices and intelligent tool-using agents. You will own the development lifecycle from design to deployment in cloud-native environments.

The role emphasizes Java and OOP, Spring AI or LangChain4j, RAG pipelines, and modern web technologies (React.js, HTML, CSS). Visa sponsorship is provided.

Qualifications

• Master's degree in CS or related field.
• 0–1 year of practical Java coding experience.
• Experience with Spring, Maven, React.js, HTML, CSS.
• Knowledge of relational DBs (MySQL, PostgreSQL) and basic SQL.
• Spring AI or LangChain4j experience; RAG app building or vector DB knowledge.

Responsibilities

• Experience with one or more OOP programming languages, including Java, C++, C#, similar languages.
• Write clean and efficient code, and ensure code maintainability and reusability.
• Conduct testing to ensure application reliability.
• Perform code reviews to ensure quality and best practices.
• Participate in Agile Scrum and own the full development lifecycle from planning to optimization.
• Create and maintain technical documentation for applications, APIs, and deployment procedures.
• Ship to production: APIs, monitoring/observability, cost/performance optimization, CI/CD, and security practices.
• Stay up to date with latest Java development technologies.
• Implement RAG pipelines using Spring AI and LangChain4j with vector database integration.
• Stay current with RAG tech, embeddings, retrieval optimization, and reranking techniques.

Skills

OOP basics

Java

AI/LLM concepts

Problem solving

Education

Master's Degree in CS

Tools

Spring

Maven

React.js

HTML

CSS

Weblogic

RabbitMQ

Tomcat

Job description

About the Role

We're looking for a talented AI 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

• Experience with one or more OOP programming languages, including Java, C++, C#, similar languages.
• 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

$62,000.00 to $80,000.00 /year

Equal Opportunity Statement

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