Senior Backend Software Engineer – Java & Generative AI (Full-Time)

💻 Job Title: Software Engineer – Backend

📍 Location: Central New Jersey, USA

🏢 Company: BeaconFire Inc.

🕒 Job Type: Full-Time

🌍 Visa Sponsorship: Available for eligible candidates (E-Verified Employer)

🔹 About Us

BeaconFire is a Central New Jersey-based technology consulting firm specializing in Software Development, Web Development, and Business Intelligence.

We are looking for motivated Backend Software Engineers with strong programming fundamentals, object-oriented programming knowledge, and problem-solving skills 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 Description

As a Backend Software Engineer, you will design, develop, test, and deploy scalable backend applications, RESTful APIs, and production-ready services using modern software engineering practices.

You will also contribute to the development of Generative AI and LLM-powered applications, including RAG pipelines, AI integrations, vector database solutions, and intelligent backend services.

The role provides an opportunity to apply your existing programming experience while transitioning into Java-based enterprise backend development and gaining hands-on experience with modern AI technologies.

🔧 Key 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 (OOP), data structures, algorithms, and software engineering principles to solve technical problems.
• Write clean, efficient, maintainable, and reusable code.

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• 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.
• Contribute to application 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.
• 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 Retrieval-Augmented Generation (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-focused data retrieval technologies.
• Apply concepts such as embeddings, chunking, retrieval optimization, and reranking.
• Explore and apply emerging Generative AI, LLM, and Agentic AI technologies.
• Contribute to intelligent, AI-powered backend solutions.

✅ 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.

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• Solid understanding of Object-Oriented Programming (OOP).
• Experience with one or more OOP programming languages, including:
• Java
• C++
• C#
• Kotlin
• Similar object-oriented languages
• Good understanding of common data structures and programming concepts.
• Basic knowledge of relational databases and SQL.
• Understanding of the Software Development Lifecycle (SDLC).
• 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.

⭐ Preferred Technical Exposure

Candidates with exposure to any of the following technologies or concepts will be well positioned for the role:

• Java / Spring ecosystem
• RESTful APIs
• SQL and relational databases
• NoSQL databases
• Data Structures & Algorithms

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• Unit and Integration Testing
• Agile/Scrum
• CI/CD and DevOps practices
• Cloud-native backend development
• Spring AI
• LangChain4j
• Large Language Models (LLMs)
• Retrieval-Augmented Generation (RAG)
• Vector Databases
• Embeddings and semantic search
• AI Agents / Agentic AI

🎯 Why Join BeaconFire?

🌍 Visa sponsorship available for eligible candidates through an E-Verified employer.

🚀 Build production-ready backend applications using modern software engineering practices.

☕ Develop Java expertise and transition into enterprise Java backend development.

🤖 Gain hands-on Generative AI experience with RAG, LLMs, vector databases, and AI frameworks.

📈 Grow your technical career through real-world projects and continuous learning.

🤝 Collaborate with Agile/Scrum teams and experienced software professionals.

💡 Work at the intersection of backend engineering and AI to build next-generation applications.

🌟 Equal Employment Opportunity

BeaconFire is an E-Verified company and provides equal employment opportunities to all qualified candidates.

Visa sponsorship is available for eligible candidates.