Senior Systems Engineer (Appian, JBoss, RHEL, J2EE, Root Cause Analysis)

EVYONIC SOLUTIONS PTE. LTD.; Singapore; On-site; SGD 210,000 - 270,000; Full time

Job summary

EVYONIC SOLUTIONS PTE. LTD. is seeking an experienced Systems Engineer to design, enhance, and maintain enterprise applications using Appian.

The role involves developing SQL/PL/SQL queries, managing deployments across environments, and troubleshooting defects to ensure system stability. The candidate will administer Linux/RHEL, work with JBoss/Apache servers, and develop Java/J2EE components with API integrations.

Qualifications

• 15+ years of relevant experience in systems engineering, enterprise app development or related roles.
• Hands-on Appian development, configuration and maintenance.
• Experience in SQL/PL/SQL, query development and database programming.
• Proficient in Linux/RHEL environments and enterprise app platforms.
• Experience deploying and releasing across multiple environments.
• Troubleshoot and resolve software defects and incidents.
• Production support and incident management experience.
• Experience with JBoss and Apache app servers.
• Experience Java/J2EE and API integrations.
• Familiar with Agile/Scrum and CI/CD pipelines.
• Strong analytical, problem-solving and documentation skills.

Responsibilities

• Design, enhance and maintain enterprise apps using Appian per requirements.
• Develop and optimise SQL/PL/SQL queries and DB procedures.
• Coordinate deployments across dev, test and prod per release procedures.
• Investigate defects, perform root-cause analysis and fix issues.
• Provide app and production support, monitor performance and incidents.
• Administer Linux/RHEL environments and perform operational checks.
• Maintain app-server environments (JBoss, Apache) for availability and performance.
• Develop Java/J2EE components and API-based integrations.
• Coordinate Appian integrations with databases and external systems.
• Support Agile/Scrum delivery and collaborate with cross-functional teams.
• Maintain CI/CD pipelines and deployment workflows for consistency.
• Prepare technical documentation and deployment records.

Skills

Appian

SQL/PL/SQL

Java/J2EE

Linux/RHEL

JBoss

Apache

APIs integration

CI/CD

Agile/Scrum

Deployment management

Production support

System engineering

Problem solving

Tools

Appian

JBoss

Apache

Linux

Job description

Responsibilities:

• Design, enhance and maintain enterprise applications using Appian, ensuring solutions meet functional and technical requirements.


• Develop and optimise SQL/PL/SQL queries, database procedures and related components to support reliable application processing.


• Manage application deployment activities across development, testing and production environments, following established release procedures.


• Investigate application defects, perform root-cause analysis and implement effective fixes to maintain system stability.


• Provide application and production support, monitor system performance, and manage incidents through appropriate service management processes.


• Administer and support Linux/RHEL environments, including application-level troubleshooting and operational checks.


• Monitor and maintain application-server environments involving JBoss and Apache to ensure availability and performance.


• Develop and maintain Java/J2EE components and support application integration through APIs and related interfaces.


• Coordinate integrations between Appian applications, databases and external systems to ensure accurate data exchange.


• Support Agile/Scrum delivery activities, collaborate with cross-functional teams and contribute to continuous improvement.


• Maintain CI/CD pipelines and deployment workflows to improve release consistency and operational efficiency.


• Prepare technical documentation, deployment records and support updates in accordance with project and operational standards.

Requirements:

• 15+ years of relevant experience in systems engineering, enterprise application development, application support or related technical roles.


• Strong hands-on experience with Appian application development, configuration and maintenance.


• Experience in SQL/PL/SQL, including query development, optimisation and database programming.


• Hands-on experience in Linux/RHEL operating systems and enterprise application environments.


• Experience in managing application deployments and release activities across multiple environments.


• Experience in troubleshoot application issues, analyse root causes and resolve software defects.


• Experience in providing application support and production support, including incident investigation and resolution.


• Experience in JBoss and Apache application-server.


• Experience developing or maintaining Java/J2EE components and integrating applications through APIs or other interfaces.


• Experience in Agile/Scrum methodologies and collaborative software delivery practices.


• Experience in CI/CD pipelines and automated deployment processes.


• Strong analytical, problem-solving, communication and technical documentation skills.