{"id":4297628,"url":"https://alion.io/job/technology-management-solutions-senior-java-as400-engineer-remote-15-years-long-term","title":"Senior Java + AS400 Engineer | Remote | 15+ Years | Long Term","company":{"id":5731,"name":"Technology Management Solutions","domain":"tmsllc.com","url":"https://alion.io/company/tmsllc","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":null},"role":"Enterprise Apps","role_family":"Enterprise Apps","seniority":"senior","employment_type":"contractor","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["United States"],"countries":["US"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":15,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ActiveMQ","optional":false},{"name":"Apache HTTP Server","optional":false},{"name":"Apache Kafka","optional":false},{"name":"Apache Tomcat","optional":false},{"name":"API Gateway","optional":false},{"name":"AppDynamics","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Bitbucket","optional":false},{"name":"CI/CD","optional":false},{"name":"COBOL","optional":false},{"name":"Confluence","optional":false},{"name":"Db2","optional":false},{"name":"Docker","optional":false},{"name":"Dynatrace","optional":false},{"name":"Git","optional":false},{"name":"GitHub","optional":false},{"name":"GitLab","optional":false},{"name":"Gradle","optional":false},{"name":"Hibernate","optional":false},{"name":"IBM MQ","optional":false},{"name":"ITIL","optional":false},{"name":"ITSM","optional":false},{"name":"Java","optional":false},{"name":"Jenkins","optional":false},{"name":"JUnit","optional":false},{"name":"Kubernetes","optional":false},{"name":"Maven","optional":false},{"name":"Mockito","optional":false},{"name":"MuleSoft","optional":false},{"name":"New Relic","optional":false},{"name":"Nginx","optional":false},{"name":"PostgreSQL","optional":false},{"name":"RabbitMQ","optional":false},{"name":"Rest API","optional":false},{"name":"ServiceNow","optional":false},{"name":"SOAP","optional":false},{"name":"SonarQube","optional":false},{"name":"Splunk","optional":false},{"name":"Spring Boot","optional":false},{"name":"Spring Cloud","optional":false},{"name":"Spring Framework","optional":false},{"name":"Spring MVC","optional":false},{"name":"Spring Security","optional":false},{"name":"SQL","optional":false},{"name":"Swagger","optional":false},{"name":"Agile","optional":true},{"name":"Apex","optional":true},{"name":"Kotlin","optional":true},{"name":"Scrum","optional":true}],"status":"live","first_seen_at":"2026-11-13T21:18:17Z","employer_posted_date":"2026-11-13","last_verified_at":"2026-11-14T02:04:44Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Role: Senior Java Engineer - AS400 & Application Development\nDuration: Longterm\nLocation: NJ-based, (Remote)\nExperience: 15+ years total\nEngagement: Multi-application support and project delivery\nVisa: Any Visa is fine\nRole Summary:\nWe are looking for a senior Java engineer with deep L3 and L4 support experience and extensive hands-on work on the IBM i (AS400) platform. The role combines production support, complex solution development, and architectural input across multiple business applications. You will resolve escalated incidents, drive root cause analysis, enhance existing systems, and contribute to project delivery in a structured ITIL-governed environment.\nKey Responsibilities:\nProvide L3 and L4 support for business-critical applications: troubleshoot escalated incidents, perform root cause analysis, and implement permanent fixes.\nDesign, develop, and deploy complex Java-based solutions and integrations, including those that interface with IBM i / AS400 systems.\nContribute to solution design and architecture: review technical designs, recommend patterns, and guide modernization and integration decisions.\nSupport and enhance multiple applications concurrently, prioritizing effectively across incidents, problems, changes, and project work.\nParticipate actively in projects from requirements and design through build, testing, deployment, and hypercare.\nManage incidents, problems, changes, and service requests in ServiceNow in line with ITIL processes and SLAs.\nPlan and track work in JIRA (stories, tasks, defects, sprints, boards, dashboards).\nPerform code reviews, enforce coding standards, and mentor junior and mid-level engineers.\nCreate and maintain technical documentation, runbooks, knowledge articles, and support handover material.\nCollaborate with business users, QA, DevOps, infrastructure, and vendor teams; communicate status and risks clearly to stakeholders.\nParticipate in on-call or shift rotations and major incident bridges as required.\nRequired Qualifications:\n15+ years of total IT experience, with strong Java development and support experience.\nProven L3 and L4 support background: complex defect analysis, code-level fixes, performance tuning, and vendor escalation handling.\nExtensive hands-on experience on the AS400 / IBM i platform.\nExperience writing complex solutions and some level of architecture experience (solution design, integration design, technical leadership).\nDemonstrated ability to support multiple applications at the same time and engage in project work.\nFull understanding of ITIL: incident, problem, change, release, and knowledge management, SLAs, and major incident handling (ITIL v3/v4 certification preferred).\nHands-on experience with ServiceNow (SNOW) for ITSM and JIRA for work management.\nExcellent analytical, communication, and stakeholder management skills.\nTechnical Skills\nCore Java and frameworks\nJava 8 / 11 / 17+, OOP, multithreading and concurrency, collections, streams, JVM tuning and memory management\nSpring Framework, Spring Boot, Spring MVC, Spring Data, Spring Security, Spring Batch, Spring Cloud\nHibernate / JPA, MyBatis, JDBC\nJakarta EE (Servlets, JSP, EJB, JMS), legacy Struts exposure a plus\nWeb services and integration\nREST and SOAP web services, JSON / XML, Swagger / OpenAPI\nMessaging: JMS, Apache Kafka, ActiveMQ, RabbitMQ, IBM MQ\nIntegration patterns, ESB / middleware exposure (Oracle SOA/OSB, MuleSoft, or similar)\nMicroservices architecture, API gateway concepts, OAuth2 / JWT\nIBM i / AS400\nIBM i (AS400) architecture, DB2 for i, libraries, objects, and job management\nRPG / RPGLE, CL, COBOL awareness; reading and troubleshooting legacy code\nJT400 / JTOpen toolkit, JDBC to DB2 for i, data queues, program calls, and Java-to-RPG integration\nBatch job scheduling, spool file handling, and performance analysis on IBM i\nModernization approaches: API enablement, service wrapping, and incremental refactoring\nDatabases\nDB2, Oracle, SQL Server, or PostgreSQL; advanced SQL, stored procedures, query tuning and indexing\nBuild, DevOps, and quality\nMaven / Gradle, Git, Bitbucket / GitHub / GitLab, Jenkins or equivalent CI/CD\nJUnit, Mockito, integration testing, SonarQube / code quality tools\nDocker; Kubernetes and cloud (AWS / Azure / OCI) exposure a plus\nApplication servers and web servers: WebLogic, WebSphere, Tomcat, JBoss, Apache / Nginx\nMonitoring and troubleshooting\nLog analysis, thread and heap dump analysis, profiling and performance tuning\nMonitoring and APM tools such as Splunk, ELK, Dynatrace, AppDynamics, or New Relic\nService management and delivery tools\nServiceNow (incident, problem, change, knowledge, reporting), JIRA, Confluence\nITIL-aligned processes, SLA and KPI reporting, RCA and problem record documentation\nPreferred Qualifications\nITIL Foundation or higher certification; Oracle or Java certifications\nExperience in retail, publishing, distribution, or ERP-integrated environments\nExposure to Agile / Scrum and hybrid support-plus-project delivery models\nExperience modernizing or migrating legacy platforms\nExperience working with onshore/offshore delivery teams\nSoft Skills\nStrong ownership and accountability for production stability\nCalm and structured under major incident pressure\nClear written and verbal communication with technical and business audiences\nAbility to mentor and influence without formal authority\nSelf-driven, able to context-switch across applications and priorities\nAll your information will be kept confidential according to EEO guidelines.","description_format":"text","description_chars":5510,"description_truncated":false,"requirements":{"experience_years_min":15,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","Management Consulting"],"lifecycle":[{"event":"open","at":"2026-11-14T02:04:44Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":6,"reasons":["conf:1","win:early"],"computed_at":"2026-11-14T03:41:01Z"},"pay":null,"html_url":"https://alion.io/job/technology-management-solutions-senior-java-as400-engineer-remote-15-years-long-term","json_url":"https://alion.io/job/technology-management-solutions-senior-java-as400-engineer-remote-15-years-long-term.json","meta":{"generated_at":"2026-11-14T03:41:01Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":5631,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-15T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":5731},"rest":"https://alion.io/mcp/rest/get_company?id=5731"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftechnology-management-solutions-senior-java-as400-engineer-remote-15-years-long-term"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"free","price":{"credits":0,"usd":0},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Ftechnology-management-solutions-senior-java-as400-engineer-remote-15-years-long-term"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Ftechnology-management-solutions-senior-java-as400-engineer-remote-15-years-long-term"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/technology-management-solutions-senior-java-as400-engineer-remote-15-years-long-term\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftechnology-management-solutions-senior-java-as400-engineer-remote-15-years-long-term"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4297628}},{"tool":"search_jobs","arguments":{"company":"tmsllc.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4297628},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); 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