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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Lead, Full Stack Engineer - **Company:** TransUnion LLC - **Location:** Chicago, IL, United States - **Experience:** Expert - **Salary:** $90,000.0 - $150,000.0 - **Contract:** Permanent contract - **Skills:** HTML, Java (Programming Language), JavaScript (Programming Language), Agile Methodology, Artificial Intelligence, Component-Based Software Engineering, Unit Testing, Microsoft Azure, Oracle WebLogic Server, Cascading Style Sheets (CSS), Software Quality, Code Review, Data Structures, Relational Databases, Linux, Web Development, Hibernate (Java), Spring Framework, JSON, WildFly (JBoss AS), JQuery, Junit, Apache Maven, Oracle Databases, Oracle (Applications), OpenAI, Microsoft Copilot, Shell Script, Simple Object Access Protocol (SOAP), Software Engineering, SonarQube, SQL Databases, Web Applications, Web Services, YAML, GitHub Copilot, ReactJS, Large Language Models, Grafana, Prompt Engineering, Spring-boot, Generative AI, Backend, Git, Containerization, Integration Tests, Front End Software Development, Claude, Google Gemini, Restful APIs, Splunk, GPT, Docker, Jenkins, Microservices - **Published:** October 27, 2026 - **Apply:** https://transunion.wd5.myworkdayjobs.com/TransUnion/job/Chicago-Illinois/Lead--Full-Stack-Engineer_19042854 ## About the Role * A minimum of 10 years of software-development experience, including at least 8 years of hands-on experience within the Java and Spring ecosystem, with the ability to design and code rather than operate solely as a project or people leader. * Demonstrated full-stack engineering experience building web applications, backend services, microservices, and RESTful APIs in production environments. * Proven experience leading technical projects, producing detailed application designs, conducting code reviews, and mentoring junior and mid-level engineers. * Experience supporting production applications, investigating technical issues, troubleshooting front-end and backend components, and collaborating with production-support teams. * Practical experience applying AI or Generative AI within software-engineering environments, including the use of AI to support development, testing, defect reduction, troubleshooting, documentation, or engineering productivity. Required Technical Skills * Advanced hands-on experience with Java, Spring Framework, Spring Boot, Hibernate, microservices architecture, RESTful APIs/Web Services, and SOAP/REST integration. * Full-stack development experience with JavaScript, HTML, CSS, and jQuery, along with the ability to troubleshoot both front-end and backend application components. * Strong experience with Oracle Database, SQL programming, relational database design, data structures and algorithms, system design, JSON, YAML, and JUnit-based unit and integration testing. * Development and production-support experience using Git, Maven, Jenkins, Splunk, Grafana, SonarQube, Linux/Unix, and shell scripting. * Working knowledge of Large Language Models (LLMs), Prompt Engineering, Retrieval-Augmented Generation (RAG), AI-powered search, and AI-assisted development tools such as GitHub Copilot, Microsoft Copilot, ChatGPT, or comparable platforms. 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: * React and modern front-end development frameworks. * Docker, containerization, WildFly, WebLogic, and Content Management System platforms such as LiveSite. * Azure OpenAI, OpenAI, Claude, Gemini, or comparable AI and Generative AI platforms. * Building AI-powered customer experiences such as intelligent search, conversational assistants, personalized recommendations, and workflow automation. * Applying security, governance, privacy, and responsible AI practices when evaluating or implementing AI-enabled solutions. ## Description * Lead the technical design and hands-on development of customer-facing web applications, Java-based backend services, microservices, and RESTful APIs. * Translate business and technical requirements into detailed application designs and independently drive projects from design through implementation. * Remain actively involved in coding while guiding junior and mid-level engineers, reviewing code, and promoting software-engineering best practices. * Develop and support full-stack solutions using Java, Spring Boot, Oracle/SQL, JavaScript, HTML, CSS, and related technologies. * Partner with production support teams to investigate application issues, troubleshoot front-end and backend components, identify root causes, and bring findings back to the development team. * Coordinate software releases and technical changes across teams located in different geographies and time zones. * Participate in Agile planning, stand-ups, retrospectives, code reviews, unit testing, integration testing, and continuous improvement activities. * Evaluate and apply AI and Generative AI technologies to improve code quality, reduce defects, automate engineering activities, and increase development efficiency. * Explore opportunities to integrate Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), AI-powered search, and other AI-enabled capabilities into production applications. * Promote responsible adoption of AI-assisted development tools and mentor engineers on practical AI use cases within software development and product delivery., 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.