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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Lead Java Engineer - **Company:** TransUnion LLC - **Location:** Chicago, IL, United States - **Experience:** Expert - **Salary:** $90,000.0 - $150,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Spring Security, Artificial Intelligence, User Authentication, Automation of Tests, Cloud Computing, Cloud Engineering, Software Quality, Continuous Integration, DevOps, Programming Tools, Distributed Data Store, Distributed Systems, Junit, Apache Maven, Open Web Application Security, Performance Tuning, Reliability Engineering, Secure Coding, Software Engineering, SonarQube, Testng, Data Logging, Google Cloud, Enterprise Software Applications, Spring Cloud, Large Language Models, Spring-boot, Multi-Cloud, Git, Spring Data, Containerization, Kubernetes, Deployment Automation, Restful APIs, Spring Batch, Devsecops, Microservices - **Published:** September 10, 2026 - **Apply:** https://transunion.wd5.myworkdayjobs.com/TransUnion/job/Chicago-Illinois/Lead-Java-Engineer_19042110-1 ## About the Role * 6+ years of hands-on experience developing enterprise applications using Java and modern software engineering practices. * Strong experience designing and developing distributed systems, microservices architectures, RESTful APIs, and event-driven applications. * Experience building cloud-native applications and deploying solutions on cloud platforms, with GCP preferred. * Experience supporting mission-critical production systems, troubleshooting complex issues, and leading incident resolution efforts. * Experience working with highly regulated data and implementing security controls, including authentication, encryption, authorization, and OWASP best practices. Required Technical Skills * Java and Spring ecosystem expertise including Spring Boot, Spring Batch, Spring Security, Spring Cloud, and Spring Data. * Cloud platforms and container technologies including Google Cloud Platform (GCP), Kubernetes, and containerized deployments. * CI/CD and development tools including Maven, Git, SonarQube, deployment automation, and testing frameworks. * Automated testing tools and frameworks including JUnit, TestNG, WireMock, and TestContainers. * Monitoring, observability, logging, tracing, alerting, and performance tuning tools used in large-scale production environments. We're also looking for the preferred skills below. Whether you are proficient or could use some brushing up, we're happy to support your career development and growth in: * Experience integrating AI/LLM solutions, RAG architectures, AI agents, or AI-powered automation capabilities. * Experience with Google Cloud Spanner or other globally distributed databases. * Experience designing multi-region and multi-cloud architectures. * Knowledge of Site Reliability Engineering (SRE), SLOs, SLIs, error budgets, and operational readiness practices. * Architecture, Cloud, Kubernetes, Security, or SRE certifications. ## Description The Core Online team is responsible for building and supporting global enterprise platforms that operate across multiple countries and cloud environments. The team develops highly scalable, secure, and resilient applications that support critical business operations. The team embraces innovation, experimentation, and modern engineering practices to continuously improve products and services. This role reports to Senior Manager of Application Development. This is a hybrid position and involves regular performance of job responsibilities virtually as well as in-person at an assigned TU office location for a minimum of two days a week. Role Overview and Core Responsibilities * Design, develop, and support large-scale Java-based enterprise applications and global platforms. * Lead the architecture and implementation of cloud-native, microservices-based solutions using modern engineering practices. * Build high-volume, low-latency applications capable of meeting stringent availability and performance objectives. * Design and develop REST APIs, event-driven services, and distributed systems that support global business operations. * Provide technical leadership, mentor engineers, and drive engineering best practices across the team. * Implement CI/CD, DevSecOps, automated testing, and software quality practices throughout the development lifecycle. * Ensure platform reliability through monitoring, observability, incident response, root cause analysis, and continuous improvement. * Apply security best practices, secure coding standards, and data protection controls for highly regulated and sensitive data environments. * Utilize AI-assisted development tools and integrate AI-powered capabilities where appropriate to improve engineering productivity and solutions., We are committed to being a place where diversity is not only present, it is embraced. As an equal opportunity employer, all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability status, veteran status, genetic information, marital status, citizenship status, sexual orientation, gender identity or any other characteristic protected by law. Additionally, in accordance with Section 503 of the Rehabilitation Act of 1973 and the Vietnam Era Veterans' Readjustment Assistance Act of 1974, TransUnion takes affirmative action to employ and advance in employment qualified individuals with a disability and protected veterans in all levels of employment and develops annual affirmative action plans. Components of TransUnion's Affirmative Action Program for individuals with disabilities and protected veterans are available for review to any associate or applicant for employment upon request by contacting ERCoE@transunion.com. Qualified applicants with arrest or conviction records will be considered for employment in accordance with applicable law, including the Los Angeles County Fair Chance Ordinance for Employers, the San Francisco Fair Chance Ordinance, Fair Chance Initiative for Hiring Ordinance, and the California Fair Chance Act. Adherence to Company policies, sound judgment and trustworthiness, working safely, communicating respectfully, and safeguarding business operations, confidential and proprietary information, and the Company's reputation are also essential expectations of this position. ## Related Videos - [Java Meets AI: Empowering Spring Developers to Build Intelligent Apps](https://www.wearedevelopers.com/videos/1554-java-meets-ai-empowering-spring-developers-to-build-intelligent-apps) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Automated Security for the Entire SDLC](https://www.wearedevelopers.com/videos/100323-automated-security-for-the-entire-sdlc) - [From boy scouting to redrawing the landscape](https://www.wearedevelopers.com/videos/1140-from-boy-scouting-to-redrawing-the-landscape) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [Got AI ideas but no money? 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