Senior Java, AS400 Engineer

Job not on LinkedIn

🔥 13 hours ago

🌲 Oregon – Remote

🌲 Oregon – Remote

⏳ Contract/Temporary

🟠 Senior

🔙 Backend Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

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TMS, LLC

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2009

💼 Consulting

🏛️ Government

Consulting • Government

TMS, LLC is a technology management and advisory firm (Technology Management Solutions) that provides IT advisory and consulting, program and project management, financial management, and organizational assessment services. The company works with U. S. federal government clients — including DHS OCIO, FEMA, the National Institute of Mental Health OCIO, and TSA — to improve mission performance, reduce costs, and modernize operations. TMS emphasizes experienced staff, proven processes, mentoring and exercises for system readiness, and cost allocation/charge-back methodologies for transparency and efficiency.

📋 Description

• Provide L3 and L4 support for business-critical applications • Troubleshoot escalated incidents, perform root cause analysis, and implement permanent fixes • Design, develop, and deploy complex Java-based solutions and IBM i/AS400 integrations • Contribute to solution design and architecture decisions • Support and enhance multiple applications across incidents, problems, changes, and projects • Participate in projects from requirements and design through build, testing, deployment, and hypercare • Manage incidents, problems, changes, and service requests in ServiceNow according to ITIL processes and SLAs • Plan and track work in JIRA • Perform code reviews, enforce coding standards, and mentor junior and mid-level engineers • Maintain technical documentation, runbooks, knowledge articles, and support handover material • Collaborate with business users, QA, DevOps, infrastructure, and vendor teams • Communicate status and risks to stakeholders • Participate in on-call or shift rotations and major incident bridges as required

🎯 Requirements

• 15+ years of total IT experience • Strong Java development and support experience • Proven L3 and L4 support background, including complex defect analysis, code-level fixes, performance tuning, and vendor escalation handling • Extensive hands-on experience on the AS400 / IBM i platform • Experience with solution design, integration design, technical leadership, and architecture • Ability to support multiple applications concurrently and engage in project work • Full understanding of ITIL processes, SLAs, and major incident handling; ITIL v3/v4 certification preferred • Hands-on experience with ServiceNow and JIRA • Excellent analytical, communication, and stakeholder management skills • Core Java, Java 8/11/17+, OOP, multithreading, concurrency, collections, streams, JVM tuning, and memory management • Spring Framework and related modules, Hibernate/JPA, MyBatis, JDBC, and Jakarta EE • REST and SOAP web services, JSON/XML, Swagger/OpenAPI, messaging systems, and integration patterns • Microservices architecture, API gateway concepts, OAuth2/JWT • IBM i architecture, DB2 for i, RPG/RPGLE, CL, COBOL awareness, JT400/JTOpen, JDBC to DB2 for i, data queues, program calls, and Java-to-RPG integration • Batch job scheduling, spool file handling, and IBM i performance analysis • DB2, Oracle, SQL Server, or PostgreSQL; advanced SQL, stored procedures, query tuning, and indexing • Maven/Gradle, Git, Bitbucket/GitHub/GitLab, Jenkins or equivalent CI/CD • JUnit, Mockito, integration testing, SonarQube/code quality tools • Application servers and web servers including WebLogic, WebSphere, Tomcat, JBoss, Apache/Nginx • Log analysis, thread and heap dump analysis, profiling, and performance tuning • ServiceNow, JIRA, Confluence, ITIL-aligned processes, SLA/KPI reporting, RCA, and problem record documentation • ITIL Foundation or higher, Oracle or Java certifications, retail/publishing/distribution/ERP experience, Agile/Scrum, legacy modernization, and onshore/offshore delivery experience preferred • Strong ownership, accountability, communication, mentoring, influence, self-direction, and ability to context-switch

🏖️ Benefits

• Long-term contract engagement • ITIL-governed environment • On-call or shift rotations and major incident bridges as required

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