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Freelance Remote Java Engineer Jobs in Pennsylvania

StackandCo

Senior Java Developer

Cork, KY · Remote

$57.50 - $73.50/hr

\n \n \n \n \n We have a unique opportunity in Cork (or remote) for a Senior Java Developer to join an expanding Software House, on a permanent basis. \n \n \n \n \n \n They have approximately 20 ...

YO AI Labs

Java Open Source Contributor

Indiana, PA · Remote

$46.50 - $60.25/hr

Java Open Source Contributor Role Type: Contract Location ... Remote Scope of Work: * Contribute production-quality code, reviews, and documentation to open ...

YO AI Labs

Backend Engineer - Remote

Philadelphia, PA · Remote

$80 - $120/hr

Remote Job Summary We are seeking experienced Senior Software Engineers to support an AI training ... Strong proficiency in Python 3, Java, Rust, C++, or TypeScript . * Strong understanding of ...

YO AI Labs

AI Engineer - Remote

Philadelphia, PA · Remote

$80 - $120/hr

Remote Job Summary We are seeking experienced Senior Software Engineers to support an AI training ... Strong proficiency in Python 3, Java, Rust, C++, or TypeScript . * Strong understanding of ...

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Infographic showing various Freelance Remote Java Engineer job openings in Pennsylvania as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% Remote job distribution.

Backend Java Developer - Remote

YO AI Labs

Philadelphia, PA • Remote

$60 - $110/hr

Full-time

Posted 12 days ago

Job description

Backend Java Developer

Job Type: Contractor
Location: Remote

Job Overview

We are seeking experienced Backend Java Developers to support a high-impact technology and AI training project. In this role, you will apply your backend development expertise to design, develop, review, and optimize scalable systems using Java, Spring Boot, and microservices architecture.

No prior AI experience is required. Strong backend engineering expertise and the ability to deliver high-quality technical solutions are the key requirements.

Key Responsibilities
  • Design, develop, and maintain scalable backend applications using Java and Spring Boot.
  • Build and maintain robust microservices architectures.
  • Develop and integrate REST APIs and backend services.
  • Review technical requirements and deliver clean, maintainable, and efficient code.
  • Participate in code reviews and provide constructive technical feedback.
  • Troubleshoot, debug, and optimize backend systems.
  • Contribute to application performance, reliability, scalability, and security.
  • Document technical processes, solutions, and system designs.
  • Collaborate effectively with remote teams and stakeholders.
Required Qualifications
  • Strong proficiency in Java.
  • Hands-on experience with Spring Boot.
  • Strong understanding of microservices architecture and design principles.
  • Experience developing scalable and maintainable backend systems.
  • Solid knowledge of REST APIs, data structures, and backend best practices.
  • Strong problem-solving and debugging skills.
  • Excellent written and verbal communication skills.
  • Strong attention to detail and ability to work independently.
Preferred Qualifications
  • Experience with AWS, Azure, or Google Cloud.
  • Experience with high-availability or distributed systems.
  • Background in AI-driven or data-intensive applications.
  • Experience working with remote or distributed development teams.
Core Skills

Java | Spring Boot | Microservices | REST APIs | Backend Development | Distributed Systems | API Development | Cloud Platforms | Debugging | System Design | Software Architecture | Code Review