Middleware Engineer (Middleware and Web Services)

RAPSYS TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 180,000 - 260,000; Full time

Job summary

RAPSYS TECHNOLOGIES PTE. LTD. is seeking a senior middleware specialist in Singapore to drive next-generation automation for middleware and web services. You will evolve legacy systems while leading build, integration, and migration to cloud-native platforms.

The role requires deep technical credibility, visionary leadership, and the ability to partner with application, AI, analytics, and operations teams. Experience with IBM middleware and cloud migrations is essential.

Qualifications

• Degree in Computer Science/IT or related field.
• 10+ years IT experience with 8+ years in middleware webhosting and app servers in large orgs, banking preferred.
• Solid knowledge administering IBM middleware products (WebSphere/WebLogic).
• Security compliance experience and SSL/Server certificates handling.
• Experience with WAS Scripting, J2EE, XML, SQL, and Shell/Perl scripting.
• Unix/Linux admin experience and TCP/IP networking.
• Familiarity with ISO27002, SDLC frameworks.
• Hands-on with at least one public cloud (AWS/Azure/GCP).
• Strong analytical, leadership, and communication skills.
• Autonomous and self-motivated with problem solving.

Responsibilities

• Develop and own multi-year strategic roadmap for middleware and web services.
• Lead IBM WebSphere/WebLogic ecosystems and related web hosting tech.
• Drive AI/AIops capabilities and cloud-native patterns on AWS.
• Build observability with Grafana or Datadog.
• Enforce security protocols and patch management for middleware.
• Design scalable, low-latency message workflows (SWIFT, wires, payments).
• Automate tasks using WAS admin, Python, Ansible, or PowerShell.
• Promote DevOps/Agile in daily work and security practices.

Skills

IBM WebSphere

WebLogic

Cloud platforms

DevOps practices

CI/CD pipelines

Automation tooling

Python/ scripting

Unix/Linux admin

Security/compliance

Leadership/communication

Education

Bachelor's degree in Computer Science/IT

Tools

Jenkins

Spinnaker

Terraform

Ansible

PowerShell

IHS (IBM HTTP Server)

Job description

• Possess a degree in Computer Science/Information Technology or related fields.
• Skilled middleware professional with at least 10 years of experience in IT and at least 8 years hands-on experience in middleware webhosting and application server products in a large organization, preferably banking environment.
• Solid knowledge in administering IBM middleware products i.e. WebSphere and WebLogic Application Server, WebSphere Portal, WebSphere Process Server, WebSphere Liberty, WebLogic Forms and Reports, IHS (IBM HTTP Server).
• Experience in IT security compliance and implementation and use of security protocols (SSL, Server certificates etc.).
• Good experience using WAS Scripting, J2EE, XML, SQL, and Shell/Perl Scripting.
• Experience with Unix system administration and TCP/IP networking.
• Familiarity of Compliance and risk management frameworks and methodologies (ISO27002, SDLC).
• Strong analytical and troubleshooting skills.
• Hands on experience on at least one public Cloud such as AWS, Azure, or GCP.
• Success attributes include initiative, the ability to perform under pressure, strong leadership, interpersonal and communication skills as well as analytical problem-solving abilities.
• Self-motivated and can work autonomously.
• Excellent verbal and written communication skills to communicate with internal customers and team members.
• Proficiency in working on Linux/Unix and Windows system.
• Develop, document, and maintain comprehensive Middleware disaster recovery plans and end-to-end runbooks for complex infrastructure platform operations.
• Managing support services and change management using ServiceNow.
• Experience in DevOps and CI/CD pipelines using Jenkins or Spinnaker.
• Experience in Infrastructure as Code (IaC) tools like Terraform such as write, test, and deploy clean, reusable Terraform modules.
• Certification in Public Cloud and Middleware products is an added advantage.

Summary:

• The successful candidate will work with engineering teams to drive the next-generation automation solutions for middleware, and web services: evolving legacy systems while leading build, integration, and migration to Cloud-native, open-source, AI/agent-powered platforms.
• He/she is expected to have deep technical credibility with visionary leadership and ability to partner with application, AI, analytics, and operations teams.

Key Responsibilities:

• Develop and own a multi-year strategic roadmap for middleware and web services aligned with business goals (e.g., cloud migration, cost optimization, latency SLAs, AI/ML readiness).
• Expertise in application hosting technologies with specialized emphasis on IBM technologies i.e. WebSphere/WebLogic Application Server, WebSphere Portal, WebSphere Liberty, WebSphere Process Server, WebLogic Forms and Reports, IHS (IBM HTTP Server).
• Provide expertise in other web hosting technologies like Oracle Application Server, Apache, Tomcat etc.
• Drive adoption of AI/agentic/AIOps capabilities: e.g. anomaly detection, predictive maintenance, self-healing, auto-scaling of clusters/queue managers and automated patching.
• Develop comprehensive multi-year technical vision and roadmap for organization's global middleware, web services, and SWIFT engineering, aligning with overall business objectives and investment strategies.
• Build end-to-end observability for middleware platforms using modern platforms (Grafana, Datadog or equivalent).
• Drive the adoption of Cloud-native patterns for web services and middleware on AWS, while ensuring the continued stability and security of critical on-premises applications and secret data.
• Build self-service capabilities in middleware space via UI and API based solutions which are secure and can be consumed by end users and applications.
• Enforce enterprise information security protocols, manage SSL certificates, and execute vulnerability patching for middleware components.
• Design and maintain message-driven processes for low latency and high-volume transaction environments (wires, ACH, instant payments) and Managing SWIFT applications.
• Automate operational tasks and infrastructure changes using was admin, Python, Ansible, or PowerShell.
• Analyze customer requirements to ensure all standards, policies and guidelines are upheld from the information security perspective and support routine compliance activities.
• Ability to analyze Information Security Procedures and help implement the same across all of IT and Business. Thorough understanding of industry and corporate technology standards for Information Security.
• Strong judgment and decision-making skills.
• Adoption of DevOps and Agile methodologies in day-to-day tasks.