{"schemaVersion":"jobsearcher.job.v1","id":"e2c4d04758121e4edaa339e0","url":"https://jobsearcher.com/jobs/e2c4d04758121e4edaa339e0","canonicalUrl":"https://jobsearcher.com/jobs/e2c4d04758121e4edaa339e0","title":"Software Engineer - Full stack (React+Java) REQ_132","description":"3Pillar is an AI transformation partner on a mission to help enterprises build the AI-native products and intelligent agents that will define the next era of business. With teams across North America, Europe, Latin America, and Asia, we work with the most ambitious companies in financial services, healthcare, media, and technology - helping them move faster, modernize boldly, and compete on their own terms. Our HelixAI platform and Helix Pods delivery model put our engineers at the center of real agentic transformation - doing work that is open, portable, and built to last. We are building the future of enterprise AI.Elevate your expertise to new heights at 3Pillar, the premier destination for trailblazing senior software engineers like yourself. On the Avalon engagement, you'll help build and evolve a modern full-stack platform - React 19 on the frontend and Java 25 with Spring Boot 4 on the backend - working alongside industry leaders to deliver transformative solutions for the business.Your role extends beyond the realm of code composition; you will architect solutions that reshape how Avalon's teams and customers work. Join us and spearhead the charge toward a tech future that transcends the ordinary.Key ResponsibilitiesFacilitate effective communication with client project stakeholders regarding project status and recommendations.Craft client code that is efficient, performant, testable, scalable, secure, and of the highest quality.Actively participate in accurate planning and estimation efforts, utilizing project methods and tools.Proficiently gather requirements and organize/present developed features for clients.Execute complex activities within the current methodology and quality standards, showcasing success across diverse engagements.Promote client success across the team by collaborating with engineers, designers, and managers to understand user pain points, anticipate potential problems, and iterate on solutions that drive client success.Engage in agile software development, including daily stand-ups, sprint planning, team retrospectives, and other governance activities.Actively participate in the Engineering Practice community, mentoring others through Communities of Practice (CoPs) or on project teams and supporting the growth of technical capabilities.Independently drive project delivery within defined architecture, demonstrating autonomy and accountability in all stages from conceptualization to deployment.Use AI-assisted development tools (GitHub Copilot) and specification-driven practices (OpenSpec) responsibly, ensuring all AI-generated suggestions are reviewed, tested, and approved before merging or deploying.Minimum QualificationsA minimum of 5+ years of experience/expertise in the following areas:UI / FrontendReact 19 with JavaScript and JSXVite for development and production buildsMaterial UI (MUI), MUI Data Grid, and Emotion for components and stylingRedux Toolkit and React Redux for shared application stateReact Context for user and feature-flag informationReact Router for client-side navigationAxios for communication with backend REST APIsOkta React and Okta Auth JS for authenticationVitest and React Testing Library for unit and component testingESLint and Prettier for code quality and formattingHusky and lint-staged for pre-commit validationNginx for serving the production UIAPI / BackendJava 25Spring Boot 4Spring Web MVC for REST API developmentSpring Data JPA and Hibernate for persistenceMicrosoft SQL Server as the production databaseH2 in SQL Server compatibility mode for automated testsOkta OAuth 2.0 and Spring Security for authentication and authorizationOpenAPI/Swagger for API documentationGradle for builds and dependency managementJUnit 5, Mockito, AssertJ, and Spring Boot Test for automated testingJaCoCo for code-coverage reportingLog4j2 for application loggingSpring Boot Actuator for application health and operational endpointsShedLock for controlling scheduled jobsApache POI for Excel processingAWS SDK for S3 file storage and retrievalAuditing and Operational MonitoringSpring Data JPA auditing for created-by, created-date, modified-by, and modified-date informationCustom AOP-based user-activity auditing for important business operationsDatabase-backed user-activity recordsCorrelation IDs for tracking bulk-action requestsLog4j2 application loggingCloudWatch and OpenSearch for deployed application logs and operational analysisCloud and DevOpsDocker for application packagingAWS ECS/Fargate for containerized deploymentAWS ECR for Docker image storageAWS S3 for attachments, configuration files, and generated output filesAWS CloudFormation for infrastructure configurationHarness as the primary CI/CD and deployment platformSnyk for dependency and container security scanningCloudWatch and OpenSearch for logs and monitoringGit and GitHub for source control, pull requests, and code reviewsGitHub Actions for OpenSpec proposal and design automationAI-Assisted and Specification-Driven DevelopmentGitHub Copilot for code suggestions, implementation, refactoring, debugging, test generation, and technical documentationOpenSpec for defining proposals, requirements, technical designs, implementation tasks, and acceptance criteria, keeping code changes traceable to agreed requirementsGitHub Actions integrated with OpenSpec for automated proposal and design workflowsComfort reviewing, testing, and approving AI-generated suggestions before they are merged or deployedGeneral QualificationsExperience in Agile software development methodologies.Expertise in applying Object-Oriented Programming principles (abstraction, encapsulation).Experience in creating and implementing well-tested, scalable, and performant enterprise-level systems.Practice and initiative mentoring other engineers and decision-makers throughout the organization.Good understanding of SOLID principles.Proficiency in the English language.Additional Experience DesiredExperience with additional AWS services (e.g., Lambda, API Gateway) beyond the core ECS/Fargate, ECR, S3, and CloudFormation stackFamiliarity with supplementary monitoring/observability tools (e.g., Grafana, Prometheus) alongside CloudWatch and OpenSearchExperience with Microsoft SQL Server backup and database maintenance toolingUnderstanding of additional authentication/authorization protocols (e.g., LDAP) alongside Okta OAuth 2.0Prior experience working with GitHub Copilot or similar AI pair-programming tools in a production codebaseWhat is it like working for 3Pillar Global?At 3Pillar, We Offer a World Of OpportunityImagine a flexible work environment - whether it's the office, your home, or a blend of both. From interviews to onboarding, we embody a remote-first approach.You will be part of a global team, learning from top talent around the world and across cultures, speaking English every day. Our global workforce enables our team to leverage global resources to accomplish our work in efficient and effective teams.We're big on your well-being - as a company, we spend a whole trimester in our annual cycle focused on well-being. Whether it is taking advantage of fitness offerings, mental health plans (country-dependent), or simply leveraging generous time off, we want all of our team members operating at their best.Our professional services model enables us to accelerate career growth and development opportunities - across projects, offerings, and industries.We are an equal opportunity employer. It goes without saying that we live by values like Intrinsic Dignity and Open Collaboration to create cutting-edge technology AND reinforce our commitment to diversity - globally and locally.Join us and be a part of a global tech community! Check out our LinkedIn site and Careers page to learn more about what it's like to be part of our team.","company":"3pillar","rawCompany":"3pillar","city":"St Peters","state":"MO","isRemote":false,"isActive":false,"createdAt":"2026-10-15T03:23:39.727Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Software Engineer - Full stack (React+Java) REQ_132","description":"3Pillar is an AI transformation partner on a mission to help enterprises build the AI-native products and intelligent agents that will define the next era of business. With teams across North America, Europe, Latin America, and Asia, we work with the most ambitious companies in financial services, healthcare, media, and technology - helping them move faster, modernize boldly, and compete on their own terms. Our HelixAI platform and Helix Pods delivery model put our engineers at the center of real agentic transformation - doing work that is open, portable, and built to last. We are building the future of enterprise AI.Elevate your expertise to new heights at 3Pillar, the premier destination for trailblazing senior software engineers like yourself. On the Avalon engagement, you'll help build and evolve a modern full-stack platform - React 19 on the frontend and Java 25 with Spring Boot 4 on the backend - working alongside industry leaders to deliver transformative solutions for the business.Your role extends beyond the realm of code composition; you will architect solutions that reshape how Avalon's teams and customers work. Join us and spearhead the charge toward a tech future that transcends the ordinary.Key ResponsibilitiesFacilitate effective communication with client project stakeholders regarding project status and recommendations.Craft client code that is efficient, performant, testable, scalable, secure, and of the highest quality.Actively participate in accurate planning and estimation efforts, utilizing project methods and tools.Proficiently gather requirements and organize/present developed features for clients.Execute complex activities within the current methodology and quality standards, showcasing success across diverse engagements.Promote client success across the team by collaborating with engineers, designers, and managers to understand user pain points, anticipate potential problems, and iterate on solutions that drive client success.Engage in agile software development, including daily stand-ups, sprint planning, team retrospectives, and other governance activities.Actively participate in the Engineering Practice community, mentoring others through Communities of Practice (CoPs) or on project teams and supporting the growth of technical capabilities.Independently drive project delivery within defined architecture, demonstrating autonomy and accountability in all stages from conceptualization to deployment.Use AI-assisted development tools (GitHub Copilot) and specification-driven practices (OpenSpec) responsibly, ensuring all AI-generated suggestions are reviewed, tested, and approved before merging or deploying.Minimum QualificationsA minimum of 5+ years of experience/expertise in the following areas:UI / FrontendReact 19 with JavaScript and JSXVite for development and production buildsMaterial UI (MUI), MUI Data Grid, and Emotion for components and stylingRedux Toolkit and React Redux for shared application stateReact Context for user and feature-flag informationReact Router for client-side navigationAxios for communication with backend REST APIsOkta React and Okta Auth JS for authenticationVitest and React Testing Library for unit and component testingESLint and Prettier for code quality and formattingHusky and lint-staged for pre-commit validationNginx for serving the production UIAPI / BackendJava 25Spring Boot 4Spring Web MVC for REST API developmentSpring Data JPA and Hibernate for persistenceMicrosoft SQL Server as the production databaseH2 in SQL Server compatibility mode for automated testsOkta OAuth 2.0 and Spring Security for authentication and authorizationOpenAPI/Swagger for API documentationGradle for builds and dependency managementJUnit 5, Mockito, AssertJ, and Spring Boot Test for automated testingJaCoCo for code-coverage reportingLog4j2 for application loggingSpring Boot Actuator for application health and operational endpointsShedLock for controlling scheduled jobsApache POI for Excel processingAWS SDK for S3 file storage and retrievalAuditing and Operational MonitoringSpring Data JPA auditing for created-by, created-date, modified-by, and modified-date informationCustom AOP-based user-activity auditing for important business operationsDatabase-backed user-activity recordsCorrelation IDs for tracking bulk-action requestsLog4j2 application loggingCloudWatch and OpenSearch for deployed application logs and operational analysisCloud and DevOpsDocker for application packagingAWS ECS/Fargate for containerized deploymentAWS ECR for Docker image storageAWS S3 for attachments, configuration files, and generated output filesAWS CloudFormation for infrastructure configurationHarness as the primary CI/CD and deployment platformSnyk for dependency and container security scanningCloudWatch and OpenSearch for logs and monitoringGit and GitHub for source control, pull requests, and code reviewsGitHub Actions for OpenSpec proposal and design automationAI-Assisted and Specification-Driven DevelopmentGitHub Copilot for code suggestions, implementation, refactoring, debugging, test generation, and technical documentationOpenSpec for defining proposals, requirements, technical designs, implementation tasks, and acceptance criteria, keeping code changes traceable to agreed requirementsGitHub Actions integrated with OpenSpec for automated proposal and design workflowsComfort reviewing, testing, and approving AI-generated suggestions before they are merged or deployedGeneral QualificationsExperience in Agile software development methodologies.Expertise in applying Object-Oriented Programming principles (abstraction, encapsulation).Experience in creating and implementing well-tested, scalable, and performant enterprise-level systems.Practice and initiative mentoring other engineers and decision-makers throughout the organization.Good understanding of SOLID principles.Proficiency in the English language.Additional Experience DesiredExperience with additional AWS services (e.g., Lambda, API Gateway) beyond the core ECS/Fargate, ECR, S3, and CloudFormation stackFamiliarity with supplementary monitoring/observability tools (e.g., Grafana, Prometheus) alongside CloudWatch and OpenSearchExperience with Microsoft SQL Server backup and database maintenance toolingUnderstanding of additional authentication/authorization protocols (e.g., LDAP) alongside Okta OAuth 2.0Prior experience working with GitHub Copilot or similar AI pair-programming tools in a production codebaseWhat is it like working for 3Pillar Global?At 3Pillar, We Offer a World Of OpportunityImagine a flexible work environment - whether it's the office, your home, or a blend of both. From interviews to onboarding, we embody a remote-first approach.You will be part of a global team, learning from top talent around the world and across cultures, speaking English every day. Our global workforce enables our team to leverage global resources to accomplish our work in efficient and effective teams.We're big on your well-being - as a company, we spend a whole trimester in our annual cycle focused on well-being. Whether it is taking advantage of fitness offerings, mental health plans (country-dependent), or simply leveraging generous time off, we want all of our team members operating at their best.Our professional services model enables us to accelerate career growth and development opportunities - across projects, offerings, and industries.We are an equal opportunity employer. It goes without saying that we live by values like Intrinsic Dignity and Open Collaboration to create cutting-edge technology AND reinforce our commitment to diversity - globally and locally.Join us and be a part of a global tech community! Check out our LinkedIn site and Careers page to learn more about what it's like to be part of our team.","datePosted":"2026-10-15T03:23:39.727Z","dateModified":"2026-10-15T03:23:39.727Z","hiringOrganization":{"@type":"Organization","name":"3pillar","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"St Peters","addressRegion":"MO","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"e2c4d04758121e4edaa339e0"},"url":"https://jobsearcher.com/jobs/e2c4d04758121e4edaa339e0"}}