Middleware Engineer

About ST Engineering

ST Engineering is a global technology, defence, and engineering group with offices across Asia, Europe, the Middle East, and the U.S., serving customers in more than 100 countries. The Group uses technology and innovation to solve real-world problems and improve lives through its diverse portfolio of businesses across the aerospace, smart city, defence, and public security segments. Headquartered in Singapore, ST Engineering ranks among the largest companies listed on the Singapore Exchange. 

Our history spans more than 50 years, and our strategy is underpinned by our core values – Integrity, Value Creation, Courage, Commitment and Compassion. These 5 core values guide every aspect of our business and are embedded in our ST Engineering culture – from the people we hire, to working with each other, to our partners and customers.

About our Line of Business – Cloud & Data Centre Solutions

ST Engineering Cloud and Data Centre Solutions Pte Ltd provides all aspects of cloud management, services, and solutions, from initial setup and migration to ongoing operations and optimization. Services include engineering works to design, build and provide facility management service for mission critical environments such data centers, disaster recovery, and business continuity sites.

Together, We Can Make A Significant Impact 

We are looking for an experienced Middleware Engineer to take ownership of enterprise middleware platforms across on-premise and AWS cloud environments. This role requires deep technical expertise, leadership capabilities, and hands-on experience in designing, managing, and optimizing complex middleware ecosystems.

Be Part of Our Success 

• Lead the design, implementation, and support of enterprise middleware platforms.
• Act as L3 escalation point for complex incidents, performance issues, and critical outages.
• Own end-to-end lifecycle management (installation, configuration, patching, upgrades, decommissioning).
• Provide technical leadership and guidance to L1/L2 engineers.
• Architect and implement high availability (HA), DR, and resiliency solutions.
• Manage and support:
• IBM WebSphere Application Server v9
• Oracle WebLogic Server (12c / 19c, including OSB/SOA)
• Red Hat JBoss Application Server
• Oversee application deployments, environment setup, and release coordination.
• Drive performance tuning, capacity planning, and optimization initiatives.
• Ensure middleware security hardening and compliance (VAPT remediation, patching).
• Automate operational tasks using scripting or DevOps tools.
• Collaborate with infrastructure, database, application, and cloud teams.
• Lead root cause analysis (RCA) and continuous improvement initiatives.
• Support DR drills, failover testing, and audit activities.

Qualities We Value 

• 8 years of relevant middleware experience, with at least 3–5 years in a lead/ L3 role.
• Strong hands-on expertise in:
• IBM WebSphere Application Server v9
• Oracle WebLogic Server (12c / 19c, OSB/SOA)
• Red Hat JBoss Application Server
• Experience with Crystal Reports and Elasticsearch administration.
• Strong experience in troubleshooting, performance tuning, and system optimization.
• Hands-on experience with Linux/Unix environments.
• Scripting knowledge (Shell, Python, or similar).
• Experience handling production-critical environments.

Our Commitment That Goes Beyond the Norm

• An environment where you will be working on cutting-edge technologies and architectures.
• Safe space where diverse perspectives are valued, and everyone’s unique contributions are celebrated.
• Meaningful work and projects that make a difference in people’s lives.
• A fun, passionate and collaborative workplace.
• Competitive remuneration and comprehensive benefits.