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What We'll Bring:
The L2 Application Support Engineer provides advanced support for Java web applications running on Apache Tomcat, manages LDAP-based authentication/authorization, and administers Linux servers. The role includes incident ownership, root-cause analysis, performance tuning, and collaborating with cross-functional teams to ensure secure, stable, and highly available services.What You'll Bring:
- Incident & Request Management: Handle L2 tickets escalated from L1; troubleshoot application, middleware, and OS issues; ensure SLA adherence.
- Tomcat Administration: Manage instances, services, ports/connectors, thread pools, JVM options, context configs, WAR deployments, and server.xml/web.xml parameters.
- Performance & Stability: Tune JVM (heap, GC, metaspace), analyze GC logs/thread dumps/heap dumps, optimize connectors and thread settings, and manage session replication (if applicable).
- LDAP/SSO Support: Configure and troubleshoot LDAP/LDAPS connections, bind DN, group/role mapping, TLS certs, referral handling; support SSO integrations via LDAP-backed directories.
- Linux Administration: Monitor and manage services (systemd), logs (journalctl/syslog), file permissions, networking (firewall/iptables, SELinux/AppArmor basics), and scheduled jobs (cron).
- Security & Compliance: Manage keystores/truststores, certificates, cipher/protocol hardening, patching, and vulnerability remediation with change controls.
- Deployment & Environment Management: Support CI/CD-driven or manual deployments, maintain environment parity across Dev/Test/UAT/Prod, and rollback when required.
- Monitoring & Observability: Configure and interpret metrics/logs (e.g., access logs, catalina.out), set alerts, and contribute dashboards/runbooks.
- Root-Cause Analysis (RCA): Perform RCAs for recurring/major incidents; implement permanent fixes and preventive actions.
- Documentation & Knowledge Sharing: Maintain SOPs, KB articles, architecture notes, and troubleshooting guides; mentor L1 engineers.
- Collaboration: Work with developers, DBAs, network/security, and platform teams to drive resolutions and improvements.
Impact You'll Make:
- Web server/reverse proxy experience (Apache HTTPD/Nginx) and SSL offloading.
- Knowledge of SSO (SAML/OIDC) integrated with LDAP/AD.
- Exposure to containers (Docker), orchestration (Kubernetes), or reverse proxies/ingress for Tomcat workloads.
- Monitoring/observability tools (Prometheus, Grafana, ELK/OpenSearch, Splunk, AppDynamics/New Relic/Datadog).
- Basic database troubleshooting (connection pools, JDBC, slow queries) and message brokers (ActiveMQ/RabbitMQ/Kafka) exposure.
- IaC/automation (Ansible/Terraform) and secure configuration benchmarks (CIS).
TransUnion Job Title
Engineer, IT SupportSkills Required
- Support Java web applications running on Apache Tomcat
- Manage LDAP-based authentication/authorization
- Administer Linux servers
- Handle L2 tickets escalated from L1
- Performance tuning and root-cause analysis
- Monitoring and managing Linux services and logs
- Managing keystores/truststores, certificates, and patching
- Documenting SOPs, KB articles, and troubleshooting guides
What the Team is Saying
TransUnion Compensation & Benefits Highlights
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Parental & Family Support — Paid, gender‑neutral parental leave with a gradual return is highlighted alongside adoption/surrogacy/infertility support and backup care through Care@Work. Dependent‑care FSA options and caregiver assistance further bolster family support.
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Healthcare Strength — Day‑one medical, dental, and vision coverage is offered with HSA/FSA options, EAP/therapy sessions, 24/7 support, and wellness programming. Coverage extends to dependents and includes mental‑health resources.
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Retirement Support — A 401(k) plan features no waiting period, an employer match, and immediate 100% vesting. Employees can also participate in an Employee Stock Purchase Plan to build long‑term financial security.
TransUnion Insights
What We Do
TransUnion is a global information and insights company that makes trust possible by ensuring that each consumer is reliably and safely represented in the marketplace. We do this by having an accurate and comprehensive picture of each person. This picture is grounded in our legacy as a credit reporting agency which enables us to tap into both credit and public record data; our data fusion methodology that helps us link, match and tap into the awesome combined power of that data; and our knowledgeable and passionate team, who stewards the information with expertise, and in accordance with local legislation around the world. Because of our work, organizations can better understand consumers in order to make more informed decisions, and earn their trust through great, personalized experiences, and the proactive extension of the right opportunities, tools and offers. In turn, consumers can be confident that their data identities will result in the opportunities they deserve. We make trust possible, so businesses and consumers can transact with confidence and achieve great things. We call this Information for Good®—it’s our purpose, and what drives us every day.
Why Work With Us
Our culture is welcoming, energetic and innovative. There’s an overall synergy that flows throughout TransUnion, creating a sense of unity in knowing that we’re all working to achieve the same overall goal. We’re dedicated to providing opportunities for our people to get involved and stay connected with their colleagues across the globe.
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Hybrid Workspace
Employees engage in a combination of remote and on-site work.
