Junior Backend Software Engineer

BeaconFire Inc.; California (MO); On-site; USD 65,000 - 80,000; Full time

Job summary

BeaconFire Inc., based in Central NJ, seeks motivated Software Engineers to build scalable backend applications and AI-powered solutions. The role centers on Java-based enterprise backend development with opportunities in Generative AI; candidates with Java, C++, C#, Kotlin or other OO languages are encouraged to apply.

The team will develop RESTful services, work with SQL/NoSQL databases, and implement AI features using Spring AI and LangChain4j.

Qualifications

• Bachelor's or Master's degree in Computer Science, Computer Engineering, Information Technology, or a related field.
• Strong programming fundamentals and problem-solving skills.
• Solid understanding of Object-Oriented Programming (OOP).
• Experience with one or more OOP programming languages, including Java, C++, C#, Kotlin, or similar languages.
• Good understanding of relational databases and SQL.
• Understanding of the software development lifecycle.
• Willingness to transition into Java-based backend development and Generative AI.
• Interest in learning and applying Generative AI and LLM technologies.

Responsibilities

• Develop scalable and production-ready backend applications and services.
• Build RESTful APIs and backend services using modern software engineering practices.
• Work with relational and NoSQL databases, including SQL-based data management.
• Apply object-oriented programming, data structures, algorithms, and software engineering principles to solve technical problems.
• Write clean, efficient, maintainable, and reusable code.
• Conduct unit testing, integration testing, debugging, and performance optimization.
• Participate in code reviews and follow software development best practices.
• Collaborate within Agile/Scrum teams throughout the software development lifecycle, including design, implementation, testing, deployment, and optimization.
• Create and maintain technical documentation for applications, APIs, and deployment procedures.
• Support production deployment, monitoring/observability, CI/CD, security, and performance optimization.
• Transition and apply existing programming experience to Java-based enterprise backend development.

Skills

Java

C++

C#

Kotlin

OOP

Problem solving

REST API development

Education

Bachelor's or Master's degree in Computer Science/Engineering/Information Technology or related field

Tools

Spring

Spring AI

LangChain4j

SQL

NoSQL databases

Job description

BeaconFire is based in Central NJ, specializing in Software Development, Web Development, and Business Intelligence. We are looking for motivated Software Engineers with a strong programming and object-oriented foundation to build scalable, production-ready backend applications and AI-powered solutions.

This role focuses on backend software development and Generative AI integration, with Java as the primary backend development environment. Candidates with experience in Java, C++, C#, Kotlin, or other object-oriented programming languages are encouraged to apply.

Job Responsibilities

Backend Software Development

• Develop scalable and production-ready backend applications and services.
• Build RESTful APIs and backend services using modern software engineering practices.
• Work with relational and NoSQL databases, including SQL-based data management.
• Apply object-oriented programming, data structures, algorithms, and software engineering principles to solve technical problems.
• Write clean, efficient, maintainable, and reusable code.
• Conduct unit testing, integration testing, debugging, and performance optimization.
• Participate in code reviews and follow software development best practices.
• Collaborate within Agile/Scrum teams throughout the software development lifecycle, including design, implementation, testing, deployment, and optimization.
• Create and maintain technical documentation for applications, APIs, and deployment procedures.
• Support production deployment, monitoring/observability, CI/CD, security, and performance optimization.
• Transition and apply existing programming experience to Java-based enterprise backend development.

Generative AI Integration

• Develop AI-powered features and applications using modern Generative AI technologies.
• Implement RAG pipelines and LLM-powered applications.
• Integrate AI models and services into backend applications and APIs.
• Work with frameworks such as Spring AI and LangChain4j.
• Work with vector databases and AI-related data retrieval technologies.
• Apply concepts such as embeddings, chunking, retrieval optimization, and reranking.
• Stay current with emerging Generative AI, LLM, and Agentic AI technologies.

Requirements

• Bachelor's or Master's degree in Computer Science, Computer Engineering, Information Technology, or a related field.
• Strong programming fundamentals and problem-solving skills.
• Solid understanding of Object-Oriented Programming (OOP).
• Experience with one or more OOP programming languages, including Java, C++, C#, Kotlin, or similar languages.
• Good understanding of common data structures and programming concepts.
• Basic knowledge of relational databases and SQL.
• Understanding of the software development lifecycle.
• Strong analytical, communication, and teamwork skills.
• Ability and willingness to transition into Java-based backend development.
• Interest in learning and applying Generative AI and LLM technologies.

Compensation

$65,000 – $80,000/year

BeaconFire is an E-Verified company and provides equal employment opportunities. Visa sponsorship is available for eligible candidates.