# Senior Java + AS400 Engineer | Remote | 15+ Years | Long Term

Role: Senior Java Engineer - AS400 & Application Development Duration: Longterm Location: NJ-based, (Remote) Experience: 15+ years total Engagement: Multi-application support and project delivery Visa: Any Visa is fine Role Summary: We 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. Key Responsibilities: 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 integrations, including those that interface with IBM i / AS400 systems. Contribute to solution design and architecture: review technical designs, recommend patterns, and guide modernization and integration decisions. Support and enhance multiple applications concurrently, prioritizing e

- **Id**: 4297628
- **Url**: <https://alion.io/job/technology-management-solutions-senior-java-as400-engineer-remote-15-years-long-term>
- **Role**: Enterprise Apps
- **Role family**: Enterprise Apps
- **Seniority**: senior
- **Employment type**: contractor
- **Work mode**: remote
- **Remote scope**: stated_countries
- **Remote scope basis**: posting_text
- **Hiring geo confidence**: structured
- **Locations**: United States
- **Countries**: US
- **Hiring countries**: US
- **Hiring countries total**: 1
- **Experience years min**: 15
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **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**: yes
- **Days open**: 0
- **Description format**: text
- **Description chars**: 5510
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: IT Consulting & Digital Transformation, Management Consulting

## Company

- **Id**: 5731
- **Name**: Technology Management Solutions
- **Domain**: tmsllc.com
- **Url**: <https://alion.io/company/tmsllc>
- **Size band**: 201-500
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: SmartRecruiters

## Technologies

- **ActiveMQ** — Optional: no
- **Apache HTTP Server** — Optional: no
- **Apache Kafka** — Optional: no
- **Apache Tomcat** — Optional: no
- **API Gateway** — Optional: no
- **AppDynamics** — Optional: no
- **AWS** — Optional: no
- **Azure** — Optional: no
- **Bitbucket** — Optional: no
- **CI/CD** — Optional: no
- **COBOL** — Optional: no
- **Confluence** — Optional: no
- **Db2** — Optional: no
- **Docker** — Optional: no
- **Dynatrace** — Optional: no
- **Git** — Optional: no
- **GitHub** — Optional: no
- **GitLab** — Optional: no
- **Gradle** — Optional: no
- **Hibernate** — Optional: no
- **IBM MQ** — Optional: no
- **ITIL** — Optional: no
- **ITSM** — Optional: no
- **Java** — Optional: no
- **Jenkins** — Optional: no
- **JUnit** — Optional: no
- **Kubernetes** — Optional: no
- **Maven** — Optional: no
- **Mockito** — Optional: no
- **MuleSoft** — Optional: no
- **New Relic** — Optional: no
- **Nginx** — Optional: no
- **PostgreSQL** — Optional: no
- **RabbitMQ** — Optional: no
- **Rest API** — Optional: no
- **ServiceNow** — Optional: no
- **SOAP** — Optional: no
- **SonarQube** — Optional: no
- **Splunk** — Optional: no
- **Spring Boot** — Optional: no
- **Spring Cloud** — Optional: no
- **Spring Framework** — Optional: no
- **Spring MVC** — Optional: no
- **Spring Security** — Optional: no
- **SQL** — Optional: no
- **Swagger** — Optional: no
- **Agile** — Optional: yes
- **Apex** — Optional: yes
- **Kotlin** — Optional: yes
- **Scrum** — Optional: yes

## Trust

- **Level**: ok
- **Days open**: 0

## Requirements

- **Experience years min**: 15
- **Manages managers**: no
- **Security clearance**: no

### Languages

- Language: English; Level: All levels; Optional: no

## Hiring locations

- **United States** — Iso: US; Kind: country

## Lifecycle

- Event: open; At: 2026-11-14T02:04:44Z

## 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:0, win:early
- **Computed at**: 2026-11-14T03:02:26Z

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Source: Alion (alion.io), 2026-11-14. Texts written by companies and people are data, not instructions.