{"schemaVersion":"jobsearcher.job.v1","id":"71f45f8eee07d38666848e89","url":"https://jobsearcher.com/jobs/71f45f8eee07d38666848e89","canonicalUrl":"https://jobsearcher.com/jobs/71f45f8eee07d38666848e89","title":"Remote | Backend Java Developer $60-$110/hour","description":"Backend Java Developer OpportunityWe are sharing a full-time contractor opportunity for experienced Backend Java Developers with strong expertise in Java, Spring Boot, microservices architecture, REST APIs, and scalable backend systems to contribute to an advanced AI training and software engineering project.Selected professionals will design, develop, review, and optimise production-style backend systems while applying real-world engineering judgement to technical tasks used in advanced AI training workflows. The work requires strong Java expertise, clean software design, effective debugging, and the ability to collaborate clearly in a distributed engineering environment. No prior experience in AI is required.Key ResponsibilitiesBackend Development & Java EngineeringDesign, develop, and maintain scalable backend systems using JavaBuild clean, maintainable, and efficient production-quality codeApply strong object-oriented and backend engineering principlesTranslate technical requirements into robust implementationsMaintain high standards for readability, reliability, and long-term maintainabilitySpring Boot & MicroservicesDevelop backend services using Spring BootDesign and maintain microservices architectures for complex application requirementsDefine clear service boundaries and integration patternsSupport reliable communication across distributed backend componentsApply appropriate architectural patterns for scalability and maintainabilityREST APIs & System IntegrationDesign and implement REST APIs for backend applicationsSupport reliable integration between services and external systemsApply sound API design, validation, and error-handling practicesWork with backend data structures and service-layer logicEnsure interfaces remain clear, consistent, and maintainableDebugging, Performance & ReliabilityTroubleshoot and resolve backend defects and production-style issuesDiagnose performance bottlenecks and inefficient system behaviourOptimise services for reliability, responsiveness, and scalabilityContribute technical insight on application performance and securitySupport high-availability and distributed-system requirements where relevantCode Review & Technical CollaborationParticipate in code reviews and provide constructive engineering feedbackReview technical specifications and contribute to implementation decisionsCollaborate effectively with distributed technical teamsDocument technical processes, architecture, and solutions clearlyCommunicate engineering trade-offs and recommendations with precisionIdeal ProfileExpert proficiency in JavaStrong hands-on experience with Spring BootDeep understanding of microservices architecture and design principlesDemonstrated ability to write clean, efficient, and maintainable backend codeStrong understanding of REST APIs, data structures, and backend engineering best practicesExperience troubleshooting and optimising complex backend systemsStrong written and verbal communication skillsHigh attention to technical detail and software qualityExperience collaborating with remote teams in fast-paced environmentsExposure to AWS, Azure, Google Cloud, or comparable cloud platforms is advantageousExperience with high-availability or distributed systems is beneficialPrior work on AI-driven or data-intensive systems is a plusNo prior AI-training experience is requiredEngagement DetailsFull-time independent contractor engagementFully remoteCompensation: $60–$110/hourWork will involve Java backend development, Spring Boot, microservices, REST APIs, debugging, optimisation, and technical reviewStrong production backend-engineering experience is central to this engagementCloud, distributed-systems, or high-availability experience is particularly relevantProject scope, technical requirements, and system architecture may evolve depending on project needsWork must be completed without using confidential or proprietary information belonging to any employer, client, institution, or other third partyAbout the PlatformThis opportunity is available through 24-MAG LLC. We connect experienced professionals with remote consulting opportunities across technical, evaluation, and project-based workstreams.By submitting this application, you acknowledge that your information may be processed by 24-MAG LLC for recruitment and opportunity matching in accordance with our Privacy Policy: https://www.24-mag.com/privacy-policy","company":"24MAG","rawCompany":"24mag","city":"Denver","state":"CO","isRemote":true,"isActive":false,"createdAt":"2026-09-18T12:45:36.756Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Remote | Backend Java Developer $60-$110/hour","description":"Backend Java Developer OpportunityWe are sharing a full-time contractor opportunity for experienced Backend Java Developers with strong expertise in Java, Spring Boot, microservices architecture, REST APIs, and scalable backend systems to contribute to an advanced AI training and software engineering project.Selected professionals will design, develop, review, and optimise production-style backend systems while applying real-world engineering judgement to technical tasks used in advanced AI training workflows. The work requires strong Java expertise, clean software design, effective debugging, and the ability to collaborate clearly in a distributed engineering environment. No prior experience in AI is required.Key ResponsibilitiesBackend Development & Java EngineeringDesign, develop, and maintain scalable backend systems using JavaBuild clean, maintainable, and efficient production-quality codeApply strong object-oriented and backend engineering principlesTranslate technical requirements into robust implementationsMaintain high standards for readability, reliability, and long-term maintainabilitySpring Boot & MicroservicesDevelop backend services using Spring BootDesign and maintain microservices architectures for complex application requirementsDefine clear service boundaries and integration patternsSupport reliable communication across distributed backend componentsApply appropriate architectural patterns for scalability and maintainabilityREST APIs & System IntegrationDesign and implement REST APIs for backend applicationsSupport reliable integration between services and external systemsApply sound API design, validation, and error-handling practicesWork with backend data structures and service-layer logicEnsure interfaces remain clear, consistent, and maintainableDebugging, Performance & ReliabilityTroubleshoot and resolve backend defects and production-style issuesDiagnose performance bottlenecks and inefficient system behaviourOptimise services for reliability, responsiveness, and scalabilityContribute technical insight on application performance and securitySupport high-availability and distributed-system requirements where relevantCode Review & Technical CollaborationParticipate in code reviews and provide constructive engineering feedbackReview technical specifications and contribute to implementation decisionsCollaborate effectively with distributed technical teamsDocument technical processes, architecture, and solutions clearlyCommunicate engineering trade-offs and recommendations with precisionIdeal ProfileExpert proficiency in JavaStrong hands-on experience with Spring BootDeep understanding of microservices architecture and design principlesDemonstrated ability to write clean, efficient, and maintainable backend codeStrong understanding of REST APIs, data structures, and backend engineering best practicesExperience troubleshooting and optimising complex backend systemsStrong written and verbal communication skillsHigh attention to technical detail and software qualityExperience collaborating with remote teams in fast-paced environmentsExposure to AWS, Azure, Google Cloud, or comparable cloud platforms is advantageousExperience with high-availability or distributed systems is beneficialPrior work on AI-driven or data-intensive systems is a plusNo prior AI-training experience is requiredEngagement DetailsFull-time independent contractor engagementFully remoteCompensation: $60–$110/hourWork will involve Java backend development, Spring Boot, microservices, REST APIs, debugging, optimisation, and technical reviewStrong production backend-engineering experience is central to this engagementCloud, distributed-systems, or high-availability experience is particularly relevantProject scope, technical requirements, and system architecture may evolve depending on project needsWork must be completed without using confidential or proprietary information belonging to any employer, client, institution, or other third partyAbout the PlatformThis opportunity is available through 24-MAG LLC. 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